Abstract

A rotary sidewall coring tool, comprising an electronic sub (1), a balance sub (2), a hydraulic control sub (3), a mechanical execution sub (4) and a rock core storage sub (5), wherein the mechanical execution sub (4) comprises a mechanical sub housing (41), a transmission device is provided in the mechanical sub housing (41), the transmission device is connected to a drill bit assembly, a side opening allowing the drill bit assembly to extend out is provided in the mechanical sub housing, the transmission device is configured to be driven by the driving device to cause the drill bit assembly to drill a stratum, break a rock core, retract and over-turn, and an axis of the drill bit assembly after overturning is parallel to that of the coring tool; a heat absorption unit (14) is further provided, such that the reliability of an electronic circuit is improved; and a reverse pushing arm (33) is additionally arranged, such that the coring tool is separated from a sidewall.

IPC Classes  ?

• E21B 49/06 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools or scrapers

Abstract

The present disclosure relates to an ultrahigh-temperature electronic circuit framework structure for well logging, comprising a plurality of nipple structures. The plurality of nipple structures are respectively provided with a plurality of circuit boards and electronic devices; the plurality of nipple structures are sequentially aligned and fixedly connected to form a framework structure body; and one end of the framework structure body is provided with a wire harness fixing nut, and the other end of the framework structure body is provided with a joint, wherein an oil passage pipe cavity is provided in the framework structure body; an oil injection oil passage pipe cavity and an oil return oil passage pipe cavity communicated with each other are formed in the oil passage pipe cavity; an oil injection port of the oil injection oil passage pipe cavity and an oil return port of the oil return oil passage pipe cavity are both arranged on the joint; the connected ends of the oil injection oil passage pipe cavity and the oil return oil passage pipe cavity are arranged on the side close to the wire harness fixing nut; and the circuit boards and electronic devices are all arranged between the oil injection oil passage pipe cavity and the oil return oil passage pipe cavity.

IPC Classes  ?

• H01B 7/42 - Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
• E21B 47/00 - Survey of boreholes or wells

Abstract

Disclosed in the present invention is an electrohydraulic central control system applied to an unmanned platform, comprising: a wellhead control panel electric control box which is connected to a central control unit by means of a cable, the wellhead control panel electric control box being provided with a wellhead control panel electric control knob; a wellhead control panel which is electrically connected to the wellhead control panel electric control box, the wellhead control panel electric control box being internally provided with a wellhead control panel hydraulic unit and a wellhead control panel electric control unit; and a disc brake hydraulic station unit, a drilling machine hydraulic station unit, a machine tool hydraulic station unit, and a workover rig unit which are internally provided with hydraulic control valves respectively coupled to the wellhead control panel. The beneficial effect of the present invention is that: the wellhead control panel is separately coupled to the hydraulic control valves inside the disc brake hydraulic station unit, the drilling machine hydraulic station unit, the machine tool hydraulic station unit, and the workover rig unit, so as to achieve electrohydraulic control of hydraulic devices of an unmanned platform in a unified manner.

IPC Classes  ?

• E21B 34/02 - Valve arrangements for boreholes or wells in well heads

Abstract

Disclosed in the present invention is an integrated high-temperature submersible motor, comprising a combined seal, a motor unit, and a circulating power cavity, which are sequentially connected, as well as a motor shaft passing through the three. The combined seal comprises a plurality of sealing units in series, the sealing unit being internally provided with an adjusting bag-mounting hole communicated with the outside, and the adjusting bag-mounting hole being internally provided with an adjusting bag. A blade guide wheel is mounted on the motor shaft located in the circulating power cavity. The combined seal is communicated with the circulating power cavity by means of a pressure pipeline. The motor in the present application satisfies a high-temperature well condition during heavy oil thermal recovery on an offshore platform, so that injection and production in the same well are achieved, thereby avoiding secondary rig operations. Meanwhile, on-site oil injection is avoided, thereby saving the operation time and cost. By means of the combination of the blade guide wheel and the pressure pipeline, cooling a motor liquid outside the motor is achieved; By means of connecting the plurality of sealing units in series, the cooling effect of the motor liquid flowing in the external pressure pipeline is improved; and by means of adjusting the expansion and contraction of a liquid filled in the adjusting bag, the functions of adjusting the expansion and contraction of the motor liquid and balancing the internal and external pressure difference are achieved.

IPC Classes  ?

• H02K 5/128 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
• H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
• H02K 5/10 - Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. of water or fingers
• H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil

Abstract

A preparation method for a polyamide nanofiltration membrane applicable to the treatment of oilfield reinjection water. The method comprises: adding a pore-forming agent and a polymer into a high-polarity organic solvent, stirring same while heating to dissolve same, so as to prepare a membrane casting solution, and scrape coating a polyester non-woven fabric with the solution to prepare a membrane; and immersing the scraped membrane serving as a supporting layer into an aqueous-phase solution containing an aqueous-phase additive, an acid acceptor and a polyamine monomer for 0.5-2 min, drying the membrane in shade, removing redundant water drops on the surface thereof, immersing same into an organic-phase solution containing a polybasic acid chloride for 0.5-2 min, taking out the membrane, air-drying same at room temperature, washing same with deionized water, and drying same to obtain a polyamide composite nanofiltration membrane.

IPC Classes  ?

• B01D 61/02 - Reverse osmosisHyperfiltration
• B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
• B01D 69/02 - Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or propertiesManufacturing processes specially adapted therefor characterised by their properties
• B01D 69/12 - Composite membranesUltra-thin membranes
• B01D 71/56 - Polyamides, e.g. polyester-amides
• C02F 1/44 - Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
• C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities

Abstract

A quantitative determination method and apparatus for a buried hill oil reservoir mode, and a medium and a device. The method comprises the following steps: identifying the lithology of a reservoir body and the lithology of a non-reservoir body inside a buried hill oil layer section; processing a logging curve, performing single-well longitudinal zonation and multi-well transverse comparison on a buried hill stratum, and compiling statistics on the thickness of a non-reservoir section appearing between zones; analyzing the cause of fracture development in the non-reservoir section by means of rock core data; comprehensively determining the pattern of a fracture development system using rock core and slice data; on the basis of evaluation parameters f1-f4, calculating an oil reservoir mode evaluation index F; and on the basis of the oil reservoir mode evaluation index F, determining an oil reservoir mode. The lithology of a reservoir body, the lithology of a non-reservoir body, the thickness of a non-reservoir section, the cause of fracture development in a non-reservoir section, and a fracture system are introduced, as quantitative indexes, into the determination of a buried hill oil reservoir mode for the first time, such that the defect of there being no quantitative determination method at present is effectively overcome.

IPC Classes  ?

• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• G06Q 10/06 - Resources, workflows, human or project managementEnterprise or organisation planningEnterprise or organisation modelling

Abstract

The present invention relates to the field of catalysis technology for oil refining and chemical engineering, and discloses a method for directly preparing chemicals from crude oil. The method comprises: (1) contacting crude oil with a DPC-1 catalyst for a first reaction to obtain a first reaction product containing a spent DPC-1 catalyst; (2) contacting the first reaction product and heavy cycle oil with a DPC-2 catalyst for a second reaction to obtain a second reaction product; (3) fractionating the second reaction product to obtain chemicals; and (4) circulating at least one of gasoline, diesel oil and wax oil to step (2) to serve as the heavy cycle oil, wherein the alkalinity of the DPC-1 catalyst is higher than that of the DPC-2 catalyst, and the DPC-2 catalyst contains an aluminosilicate type molecular sieve ZEO-1. The method provided in the present invention has a strong adaptability to raw materials, can be used for treating both high-quality crude oil and inferior crude oil and various types of heavy oil, and can improve the distribution of the chemicals, improve the yield and quality of the chemicals, and reduce the yield of coke.

IPC Classes  ?

• C10G 51/02 - Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more cracking processes only plural serial stages only
• B01J 29/06 - Crystalline aluminosilicate zeolitesIsomorphous compounds thereof
• B01J 23/02 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the alkali- or alkaline earth metals or beryllium

Abstract

The present invention relates to the technical field of chemical catalysis in oil refining. Disclosed is a method for directly preparing chemicals from feedstock oil: (1) bringing the feedstock oil into contact with a DPC-1 catalyst to induce a first reaction in order to obtain a first reaction product containing a spent DPC-1 catalyst; (2) bringing the first reaction product containing a spent DPC-1 catalyst and recycled oil into contact with a DPC-2 catalyst to induce a second reaction in order to obtain a second reaction product; (3) performing fractional distillation on the second reaction product to obtain chemicals; and (4) recycling at least one of gasoline, diesel oil and paraffin oil in step (2) to serve as the recycled oil. The alkalinity of the DPC-1 catalyst is stronger than that of the DPC-2 catalyst, and the DPC-1 catalyst and the DPC-2 catalyst are not separated in the second reaction stage. The method provided by the present invention has strong adaptability to raw materials, and thus can be used for treating both high-quality crude oil and inferior crude oil and various types of heavy oil, thereby improving the distribution and yield of chemicals.

IPC Classes  ?

• C10G 11/04 - Oxides

Abstract

A sensor module, including a main body shell and a sensing device provided in the main body shell; the sensing device includes a sensor, an upper cover plate, a lower cover plate and a circuit plate; the sensor is mounted on the circuit plate; the upper cover plate and the lower cover plate are respectively mounted on the upper and lower sides of the circuit plate, and are configured to support the main body shell and fix the circuit plate; an accommodation cavity for storing an insulating fluid is provided between the upper cover plate and the circuit plate, between the upper cover plate and the sensor, and between the lower cover plate and the circuit plate; and a first acoustic window is provided at a portion of the upper cover plate located above the sensor. Further disclosed are a sensor assembly and an acoustic logging tool.

IPC Classes  ?

• G01V 1/52 - Structural details
• E21B 47/017 - Protecting measuring instruments
• E21B 47/14 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
• G01D 11/24 - Housings

Abstract

A spacer insertion device is disclosed. The spacer insertion device comprises a spacer insertion mechanism fixed on a base body of a core detection device of a coring instrument, wherein the spacer insertion mechanism comprises a slider and a cylinder body, an output end of the cylinder body is connected with the slider, and the slider is slidably connected with the base body to push a spacer to the a core channel provided in the base body and in communication with a core barrel.

IPC Classes  ?

• E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
• E21B 17/10 - Wear protectorsCentralising devices
• G01B 21/02 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
• G01N 1/08 - Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

Abstract

The present invention relates to the technical field of petrochemical engineering, and discloses a heavy oil product upgrading method and a heavy oil product upgrading system. The method comprises: (1) bringing a basic catalyst into contact with a heavy oil product for a catalytic reaction in a suspended bed reactor in the presence of a reducing gas to obtain an upgraded product and a spent catalyst, wherein the reaction temperature of the catalytic reaction is 330-490ºC, and the reaction pressure is 0.05-10 MPa; (2) regenerating the spent catalyst, and returning the resulting regenerated catalyst to the suspended bed reactor for recycling; and (3) subjecting the upgraded product to gas-liquid separation to obtain a light product and a heavy product. The heavy oil product upgrading method provided in the present invention is simple in terms of process flow, can improve the removal rate of impurities under mild reaction conditions, can obtain a heavy product which has a high aromatic hydrocarbon content and can be used for producing a carbon-based new material, and is suitable for industrial promotion.

IPC Classes  ?

• C10G 45/04 - Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbonsHydrofinishing characterised by the catalyst used
• C10G 47/04 - Oxides

Abstract

A highly active and hydrothermally stable catalyst and a preparation method therefor. The catalyst is prepared by mixing highly active and hydrothermally stable catalyst powder with a binder and a forming agent and forming a spherical or strip-shaped catalyst by means of a molding device, and then drying and roasting the spherical or strip-shaped catalyst, wherein the mass percentages of components of the highly active and hydrothermally stable catalyst powder are: 0.02-20wt% of a covering component, 0.02-10wt% of doping metal, 0.02-10wt% of rare earth metal, and 60-99.4wt% of precursor. The highly active and hydrothermally stable catalyst has a specific surface area of 200-390 m2/g after treatment under high-temperature hydrothermal conditions, has high activity and hydrothermal stability, and is applicable to catalytic reactions under high-temperature hydrothermal process conditions.

IPC Classes  ?

• B01J 23/34 - Manganese
• B01J 23/10 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of rare earths
• C10G 11/04 - Oxides

Abstract

Disclosed are a solid base catalyst and a preparation method therefor. The solid base catalyst is composed of an active component, an auxiliary agent, a forming aid and a solid base catalyst carrier. The solid base catalyst carrier is a highly mesoporous catalytic carrier. The solid base catalyst carrier has undergone a pore thickening treatment, transition metal doping, and a surface modification treatment, which improves the hydrothermal stability of the catalyst, eliminates some polar centers, reduces the ability of the catalyst to adsorb polycyclic aromatic hydrocarbons and non-hydrocarbon impurities in heavy oil, and increases the service life of the catalyst. The present invention further provides a preparation method for the solid base catalyst, which prepares microspherical, strip-shaped and spherical catalysts, and may be used in the reaction processes of fluidized bed catalytic cracking, fixed beds, moving beds and the like. The solid base catalyst of the present invention has a coke yield of less than 10 wt% and a selectivity of low-carbon olefins in liquefied gas greater than 80% during the catalytic cracking process of heavy oil and residual oil having a residual carbon content greater than 10 wt%.

IPC Classes  ?

• B01J 23/34 - Manganese
• B01J 21/08 - Silica
• B01J 32/00 - Catalyst carriers in general
• B01J 35/10 - Solids characterised by their surface properties or porosity
• B01J 21/12 - Silica and alumina
• B01J 29/03 - Catalysts comprising molecular sieves not having base-exchange properties
• C10G 11/02 - Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils characterised by the catalyst used
• C10G 11/04 - Oxides
• C10G 11/05 - Crystalline alumino-silicates, e.g. molecular sieves
• C10G 11/18 - Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised bed" technique

Abstract

A coring device, comprising an electronic sub communicated with a ground control system and identifying the position of a core taken underground, a supporting arm sub for fixing the coring device, a rotating sub for rotating a mechanical sub to a specified position to carry out coring by rotating, a hydraulically controlled sub for providing power to the rotating sub and the mechanical sub, a mechanical sub for performing pushing, coring, core folding and core length measurement operations, and a core storage barrel sub for storing a taken core, which are sequentially connected. The rotating sub comprises a rotating shaft, a moving sleeve which sleeves the rotating shaft and is in threaded connection with the rotating shaft, and a fixed housing; the rotating shaft and the moving sleeve are arranged inside the fixed housing, two ends of the rotating shaft respectively extend from two ends of the fixed housing.

IPC Classes  ?

• G01N 1/08 - Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

Abstract

An integrated logging instrument for coring and sampling includes a downhole main body and a ground system. The downhole main body is connected with the ground system through a long cable. The downhole main body includes a coring and sampling mechanism, a power mechanism and an energy storage mechanism. The coring and sampling mechanism includes a coring assembly for drilling cores and a pushing and setting assembly for downhole fixation. The power mechanism is arranged at an upper end of the coring and sampling mechanism, and includes a motor, a piston structure and a pump body. The piston structure and the pump body are respectively arranged at two output ends of the motor. The piston structure is arranged to provide suction power. The pump body is arranged to provide hydraulic power. The energy storage mechanism is arranged at a lower end of the coring and sampling mechanism.

IPC Classes  ?

• E21B 49/06 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools or scrapers
• E21B 49/10 - Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers
• G01V 11/00 - Prospecting or detecting by methods combining techniques covered by two or more of main groups

Abstract

A vibration detection apparatus applied to a nuclear magnetic resonance while drilling instrument, including a vibration table. The vibration table is configured to horizontally clamp the nuclear magnetic resonance while drilling instrument and further includes a graduated barrel that contains a detection liquid; the graduated barrel is configured to be suspended at the upper side of the vibration table and be spaced apart from the nuclear magnetic resonance while drilling instrument; when the vibration table performs vibration, the graduated barrel keeps stationary, and the nuclear magnetic resonance while drilling instrument preforms high-pressure emission and measurement by means of the graduated barrel. Therefore, the nuclear magnetic resonance while drilling instrument can obtain the echo signal of the graduated barrel during vibration, thereby more accurately detecting the performance thereof and shortening a detection time length.

IPC Classes  ?

• G01M 7/02 - Vibration-testing
• G01R 33/34 - Constructional details, e.g. resonators
• G01V 3/32 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electron or nuclear magnetic resonance

Abstract

A hydraulic power system for a downhole device, including a first motor, a first hydraulic pump, a second hydraulic pump, a first main oil circuit, a second main oil circuit, a switching control module and a first execution module. The first motor has a first output shaft which drives the first hydraulic pump and has an oil outlet connected to an input end of the first main oil circuit and a second output shaft which drives the second hydraulic pump and has an oil outlet connected to an input end of the second main oil circuit; the first execution module is connected to an output end of the first main oil circuit; displacement of the first hydraulic pump is smaller than that of the second hydraulic pump; and the switching control module is connected between the first main oil circuit and the second main oil circuit.

IPC Classes  ?

• F15B 11/17 - Servomotor systems without provision for follow-up action with two or more servomotors using two or more pumps
• F15B 11/028 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the actuating force
• F15B 11/04 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed
• F15B 20/00 - Safety arrangements for fluid actuator systemsApplications of safety devices in fluid actuator systemsEmergency measures for fluid actuator systems

Abstract

An ultra-dispersion device for treating high-concentration wastewater by using aerobionts. The device comprises several ultra-dispersion reaction units (5), an aeration adjustment and control unit (4), a reaction tank (1), a sludge discharge unit (6) and an agent-adding assistance unit (2), wherein the several ultra-dispersion reaction units (5) are uniformly arranged inside the reaction tank (1), each ultra-dispersion unit is composed of several flow guide cylinders (10), aerators (12) and a water distributor (11), the several flow guide cylinders (10) are distributed around the periphery of the center of an axis of the ultra-dispersion reaction unit (5), the aerators (12) are arranged at the center of the bottom of each of the flow guide cylinders (10) and at the bottom of the center of the axis of the ultra-dispersion reaction unit (5), and the water distributor (11) is arranged at the center of the bottom of the axis of the ultra-dispersion reaction unit (5) and is located above the aerator (12); and the aeration adjustment and control unit (4), the sludge discharge unit (6) and the agent-adding assistance unit (2) are located on a side face of the reaction tank (1), and are respectively connected to the upper part of the reaction tank (1), a sludge discharge port (13) at the bottom of the reaction tank, and the reaction tank (1).

IPC Classes  ?

• C02F 3/12 - Activated sludge processes
• C02F 101/16 - Nitrogen compounds, e.g. ammonia
• C02F 103/34 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups
• C02F 101/30 - Organic compounds

Abstract

The present invention relates to an internal component for enhancing a biochemical mixing and mass transfer reaction process of refinery wastewater, comprising a barrel and a water and gas distribution structure, and characterized in that the internal component mainly comprises a transmission internal component and a mass transfer internal component. The transmission internal component comprises a pressurized air releaser (6), a central circulation barrel (3), and a water distributor (5). The mass transfer internal component comprises a plurality of auxiliary barrels (4), a water distributor (5), and a pressurized oxygen-rich gas releaser (7). The internal component can achieve high-strength gas-liquid-solid mixing, has the characteristics of uniform mixing, high mass transfer rate, and high efficiency of dissolved oxygen, can adjust the radius of backflow circulating water, significantly enhance the mixing and mass transfer effects of the biochemical reaction, and shorten the hydraulic retention time, and can be used for a deep water biochemical device, and reduce the area occupied by the biochemical device.

IPC Classes  ?

• C02F 3/12 - Activated sludge processes
• C02F 103/36 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups from the manufacture of organic compounds

Abstract

An active sludge regulator for use in biochemical processing of refinery wastewater, consisting of the following components in percentage by mass: 20-40% of a carbon source, 10-15% of disodium hydrogen phosphate, 0.05%-3% of bentonite, 2%-5% of a nitrogen source, 1%-3% of active carbon, 0.001-0.2% of polyglutamic acid, 0.5%-5% of a microbial detoxification agent, 3-10% of inorganic salts, wherein the mass ratio of the content of the inorganic salts is K:Ca:Mg:Fe:Zn:Cu＝21.25-30.14:30-45:2-5:2-7:5-10:4-10, and the balance is water.

IPC Classes  ?

• C02F 3/34 - Biological treatment of water, waste water, or sewage characterised by the microorganisms used
• C02F 103/36 - Nature of the water, waste water, sewage or sludge to be treated from the chemical industry not provided for in groups from the manufacture of organic compounds

Abstract

A micro-bubble pressurized circulating ozone catalytic oxidation reactor, comprising a reaction tower body (1); a water intake pipe opening is reserved at the bottom of the side wall of a tower; a water outlet and an exhaust port are provided at the top of the tower; a return tank (7) is connected to the water outlet; a gas-water mixed liquid distribution device (2) is arranged at the bottom of the tower body (1); a catalytic bed (3) is fixed to the upper middle portion of the tower body (1) by means of a grating plate; a gas-liquid mixing device (4) is arranged outside the bottom of the tower body (1); a water inlet, a gas inlet and a water outlet are provided on the gas-liquid mixing device (4); the water inlet is connected to a water intake pipe; the gas inlet is connected to an ozone intake pipe outside the reactor; the water outlet is connected to the gas-water mixed liquid distribution device (2) by means of a pipe; a supplementary aeration device (5) connected to the ozone intake pipe is arranged in the middle of the tower body (1); the effective height of the reactor is 10m - 20m; and the water outlet of the return tank (7) is respectively connected to the water intake pipe of the gas-liquid mixing device (4) and a water inlet of a subsequent treatment device by means of a pipe. Further disclosed is a method for treating waste water by means of micro-bubble pressurized circulating ozone catalytic oxidation.

IPC Classes  ?

• C02F 1/72 - Treatment of water, waste water, or sewage by oxidation
• C02F 1/78 - Treatment of water, waste water, or sewage by oxidation with ozone

Abstract

A seawater desalination process system for supplying boiler supplemental water for thermal recovery of heavy oil in offshore oil fields, comprising an ultrafiltration unit, a desalination unit and a thermal deaeration unit sequentially connected. The ultrafiltration unit comprises a seawater lifting pump (1), a self-cleaning filter (2), a plate heat exchanger (3), a pipeline mixing condensator and an ultrafiltration membrane (5) sequentially connected, wherein the ultrafiltration membrane (5) is a ceramic ultrafiltration membrane. The desalination unit comprises a water-producing buffer tank (6), a reverse osmosis water supply pump (7), a security filter (8), a three-stage reverse osmosis unit and an electrodialysis unit sequentially connected. The thermal deaeration unit comprises a plate heat exchanger (20) and an oxygen remover (21). By means of integration of ceramic membrane ultrafiltration, reverse osmosis, EDI and low-energy-consumption deep deaeration process technologies, an integrated system for supplemental water treatment having a simple process, compact devices and light weight is developed; waste liquid discharge amount is reduced, membrane device loss is reduced, the working intensity of operation and maintenance is greatly reduced, and stable and standard operation of the device is ensured.

IPC Classes  ?

• C02F 9/10 - Thermal treatment
• C02F 103/08 - Seawater, e.g. for desalination

Abstract

Provided are a method and system for measuring a composition and property of a formation fluid. The method includes: acquiring a measuring model used for measuring a composition and a property of a formation fluid; using a signal measured by a sensor on a downhole hydrocarbon formation tester in real-time as input data and inputting the input data into the measuring model; processing the input data by the measuring model; and directly outputting a processing result as data on the composition and the property of the real-time formation fluid, or parsing the data on the composition and the property of the real-time formation fluid according to the processing result.

IPC Classes  ?

• G01N 33/28 - Oils
• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• G01N 30/86 - Signal analysis
• G06N 20/00 - Machine learning
• G01N 30/02 - Column chromatography

Abstract

A coring device, comprising an electronic sub in communication with a ground control system and identifying the position of a core taken underground, a supporting arm sub for fixing the position of the coring device, a rotating sub for rotating a mechanical sub to a specified position to carry out coring by rotating, a hydraulically controlled sub for providing power to the rotating sub and the mechanical sub, a mechanical sub for performing pushing, coring, core folding and core length measurement operations, and a core storage barrel sub for storing a taken core, which are sequentially connected. The rotating sub comprises a rotating shaft, a moving sleeve which sleeves the rotating shaft and is in threaded connection with the rotating shaft, and a fixed housing; the rotating shaft and the moving sleeve are arranged inside the fixed housing, two ends of the rotating shaft respectively extend from two ends of the fixed housing, and the rotating shaft is axially limited in the fixed housing; and an oil inlet is provided in an end face of the fixed housing close to the hydraulically controlled sub, and the hydraulically controlled sub injects hydraulic oil into the fixed housing through the oil inlet to drive the moving sleeve to move axially.

IPC Classes  ?

• G01N 1/08 - Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit

Abstract

A sensor module, comprising a main body housing (11) and a sensing device provided in the main body housing; the sensing device comprises a sensor (12), an upper cover board (13), a lower cover board (15) and a circuit board (14); the sensor is mounted on the circuit board; the upper cover board and the lower cover board are respectively mounted on the upper and lower sides of the circuit board, and are configured to support the main body housing and fix the circuit board; an accommodation cavity (16) for storing an insulating fluid is provided between the upper cover board and the circuit board, between the upper cover board and the sensor, and between the lower cover board and the circuit board; and a first acoustic window (131) is provided at a portion of the upper cover board located above the sensor. Further disclosed are a sensor assembly and an acoustic logging tool.

IPC Classes  ?

• E21B 47/18 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid
• E21B 47/11 - Locating fluid leaks, intrusions or movements using tracersLocating fluid leaks, intrusions or movements using radioactivity

Abstract

A control method and device, applied to a mud pulse generator. The mud pulse generator comprises a shear valve. The shear valve is composed of a stator and a rotor the radial direction cross-sections of which are fan-shaped. The control method comprises: acquiring the swing angle of the rotor relative to the stator in the shear valve; determining an interval to which the obtained swing angle belongs among a plurality of predetermined swing angle intervals; and controlling the rotor to move by using a control function corresponding to the interval to which the swing angle belongs, wherein the plurality of predetermined swing angle intervals are divided in advance according to the range of the swing angle, and each swing angle interval corresponds to a control function, respectively.

IPC Classes  ?

• E21B 47/18 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid

Abstract

A core detection device of a coring instrument includes a base body and a core switch mechanism provided on the base body. The base body is provided with a core channel communicated with a core barrel. The core switch mechanism includes a detection portion, a connecting rod assembly and a travel switch which are sequentially arranged and connected along a length direction of the coring instrument. The detection portion is rotatably installed on the base body and one end thereof is extended into the core channel, so that a core passing through the core channel pushes the detection portion to rotate. The connecting rod assembly can be pulled by the rotating detection portion to trigger the travel switch to operate. The core switch mechanism adopts a slider-connecting rod structure, and the kinematic pairs are mainly a sliding pair and a rotating pair.

IPC Classes  ?

• G01N 1/08 - Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
• G01B 21/02 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
• E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
• E21B 17/10 - Wear protectorsCentralising devices

Abstract

A radioactive source library (100), comprising: a first box body (200) and a second box body (300) disposed in the first box body (200), the second box body (300) comprising a source chamber (310) used to store a radioactive source, shielding layers being disposed between the source chamber (310) and the second box body (300); the shielding layers comprise a neutron shielding layer (600) and a gamma radiation shielding layer (500).

IPC Classes  ?

• G21F 5/14 - Devices for handling containers or shipping-casks, e.g. transporting devices

Abstract

Disclosed is a coring and sampling integrated logging instrument, comprising an underground main body (4) and a ground system (1), wherein the underground main body (4) is connected to the ground system (1) by means of a long cable (3), and the underground main body (4) comprises a coring and sampling mechanism (10), a power mechanism (9) and an energy storage mechanism (45); the coring and sampling mechanism (10) comprises a coring assembly (15) for drilling a rock core and a pushing and setting assembly (12) for downhole fixation; the power mechanism (9) is arranged at the upper end of the coring and sampling mechanism (10); the power mechanism (9) comprises an electric motor (19), a piston structure (18) and a pump body (20); the piston structure (18) and the pump body (20) are arranged at two output ends of the electric motor (19), respectively; the piston structure (18) is arranged to provide suction power; the pump body (20) is arranged to provide hydraulic power; and the energy storage mechanism (45) is arranged at the lower end of the coring and sampling mechanism (10), the energy storage mechanism (45) is arranged to store pressure energy of the power mechanism and can serve as a temporary power source, and the energy storage mechanism (45) is arranged to provide temporary power for the underground main body (4) so as to ensure the safety of the underground main body (4).

IPC Classes  ?

• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• E21B 49/06 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools or scrapers

Abstract

An oil-based drilling fluid and a preparation method therefor, and a method for preparing an anti-settling stabilizer. The method for preparing an anti-settling stabilizer comprises: using lithium bentonite and attapulgite as raw materials, and using an organic cationic surfactant and a non-ionic amine-terminated polyether compound as modifiers to modify the raw materials to obtain the anti-settling stabilizer. On the basis of the sum of the volumes of a base oil and a water phase being 100ml, the oil-based drilling fluid comprises: 80ml to 95ml of the base oil, 5ml to 20ml of the water phase, 3g to 6g of an emulsifier, 0.5g to 2g of a wetting agent, 0.25g to 2g of a viscosity regulator, 2g to 8g of a fluid loss agent, 2g to 4g of an alkalinity regulator, 0.2g to 1g of the anti-settling stabilizer and a weighting agent. The oil-based drilling fluid of the present application has better anti-settling stability and rheological properties under high temperature and high pressure conditions.

IPC Classes  ?

• C09K 8/03 - Specific additives for general use in well-drilling compositions
• C09K 8/36 - Water-in-oil emulsions

Abstract

A noise elimination method for a measurement while drilling (MWD) system, comprising: receiving an acquired mud signal and determining characteristic frequency of a periodic noise signal in the mud signal (301); performing a Fourier transform on the mud signal to obtain a mud signal in a frequency domain (302); and obtaining, according to the characteristic frequency of the periodic noise signal in the mud signal, the mud signal in the frequency domain, and a preset suppression factor, a mud frequency domain output signal with noise eliminated (303).

IPC Classes  ?

• G01V 1/50 - Analysing data
• E21B 47/18 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid

Abstract

A hydraulic power system for a downhole device, comprising: a first motor (10), a first hydraulic pump (11), a second hydraulic pump (12), a first main oil circuit A, a second main oil circuit B, a switching control module (13) and a first execution module (14). The first motor (10) has a first output shaft (101) and a second output shaft (102); the first output shaft (101) drives the first hydraulic pump (11), and an oil outlet of the first hydraulic pump (11) is connected to an input end of the first main oil circuit A; the second output shaft (102) drives the second hydraulic pump (12), and an oil outlet of the second hydraulic pump (12) is connected to an input end of the second main oil circuit B; the first execution module (14) is connected to an output end of the first main oil circuit A; the displacement of the first hydraulic pump (11) is smaller than that of the second hydraulic pump (12); and the switching control module (13) is connected between the first main oil circuit A and the second main oil circuit B, and is used to adjust the working pressure of the first main oil circuit A and the movement speed of the first execution module (14) by means of controlling the turning on and off of the first main oil circuit A and the second main oil circuit B. In addition, disclosed is a downhole device that comprises the foregoing hydraulic power system.

IPC Classes  ?

• F15B 11/05 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the speed specially adapted to maintain constant speed, e.g. pressure-compensated, load-responsive
• F15B 11/028 - Systems essentially incorporating special features for controlling the speed or the actuating force or speed of an output member for controlling the actuating force
• F15B 11/17 - Servomotor systems without provision for follow-up action with two or more servomotors using two or more pumps

Abstract

A downhole oil level detection device, comprising a mounting housing (1) and a balance cylinder (2). The balance cylinder (2) is installed on the mounting housing (1); the balance cylinder (2) comprises a cylinder body (25) as well as a moving piston (21), a piston tension spring (22), a moving rod (23), a moving rod compression spring (24), and a displacement sensor (3) installed in the cylinder body (25); one end of the piston tension spring (22) is fixed to one end of the cylinder body (25), and the other end of the piston tension spring (22) is connected to one side of the moving piston (21); one side of the moving piston (21) is also connected to one end of the moving rod compression spring (24), the other end of the moving rod compression spring (24) is connected to one end of the moving rod (23), and the other end of the moving rod (23) is provided with the displacement sensor (3) for measuring the displacement of the moving piston (21); a limiting structure is provided on the other end of the moving rod (23), and a locking structure is also connected to one side of the moving piston (21); and the moving piston (21) drives the moving rod (23) to move by means of cooperation of the locking structure and the limiting structure.

IPC Classes  ?

• E21B 47/047 - Liquid level

Abstract

A resistivity measurement polar plate, comprising a polar plate bracket (1), a composite polar plate (2), and an electrode assembly (3). The electrode assembly is mounted on the composite polar plate. The composite polar plate is mounted on the polar plate bracket. The composite polar plate comprises a first insulator (21), a second insulator (22), and an electrode contact (23). The first insulator is connected to the second insulator. The electrode contact penetrates the first insulator. One end of the electrode contact is buried in the second insulator, and the other end of the electrode contact is exposed for connection to the electrode assembly. Also disclosed is a manufacturing method for this resistivity measurement polar plate.

IPC Classes  ?

• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

A test system is disclosed. The test system comprises a main control module (10), one or more distributed control modules (20) connected to the main control module (10), and one or more test sub-systems (30) connected to the distributed control modules (20) in one-to-one correspondence. Each test sub-system (30) comprises a data acquisition module (301), a simulated load module (302), a signal simulation module (303), a drive module (304) under test, and a motor (305). The drive module (304) is configured to drive the motor (305) to operate. The distributed control module (20) is connected to each module in the test sub-system (30) connected to the distributed control module (20), and is configured to control operation of each module connected to the distributed control module (20). The data acquisition module (301) is configured to acquire measurement data of the drive module (304) and transmit the same to the distributed control module (20) connected to the data acquisition module (301). The simulated load module (302) is configured to transmit, according to a first instruction of the distributed control module (20) connected to the simulated load module (302), a torque load for the motor (305) driven by the drive module (304). The signal simulation module (303) is configured to output an analog pressure signal to the drive module (304) according to a second instruction of the distributed control module (20) connected to the signal simulation module (303).

IPC Classes  ?

• F15B 19/00 - Testing fluid-pressure actuator systems or apparatus, so far as not provided for elsewhere
• G01R 31/34 - Testing dynamo-electric machines
• E21B 47/00 - Survey of boreholes or wells
• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

A vibration detection apparatus applied to a nuclear magnetic resonance while drilling instrument (200), comprising a vibration table (100). The vibration table (100) is configured to horizontally clamp the nuclear magnetic resonance while drilling instrument (200) and further comprises a graduated barrel (300) that contains a detection liquid; the graduated barrel (300) is configured to be suspended at the upper side of the vibration table (100) and be spaced apart from the nuclear magnetic resonance while drilling instrument (200); when the vibration table (100) performs vibration, the graduated barrel (300) keeps stationary, and the nuclear magnetic resonance while drilling instrument (200) preforms high-pressure emission and measurement by means of the graduated barrel (300). Therefore, the nuclear magnetic resonance while drilling instrument (200) can obtain the echo signal of the graduated barrel (300) during vibration, thereby more accurately detecting the performance thereof and shortening a detection time length.

IPC Classes  ?

• G01M 7/02 - Vibration-testing

Abstract

Disclosed is a packer capable of preventing unexpected release. The packer comprises a body; the body is configured such that a pipe (100) can pass through the body; an anchoring assembly (300) for setting is provided on the body; the packer further comprises a limiting mechanism; the limiting mechanism is fixed on the body; one end of the limiting mechanism is clamped between the anchoring assembly (300) and the pipe (100); the limiting mechanism is used for locking the anchoring assembly (300) before the pipe (100) is lifted to a preset height so as to keep setting of the packer.

IPC Classes  ?

• E21B 33/127 - PackersPlugs with inflatable sleeve

Abstract

A method and system for measuring a composition and property of a formation fluid. The method comprises: obtaining a measuring model for measuring a composition and property of a formation fluid; using a signal measured by a sensor on a downhole hydrocarbon reservoir tester in real time as input data and inputting the input data into the measuring model; processing the input data by means of the measuring model; and directly outputting a processing result as data of the composition and property of the real-time formation fluid, or parsing the data of the composition and property of the real-time formation fluid according to the processing result. The system comprises a processor and a computer readable storage medium; the computer readable storage medium stores instructions; the processor executes the instructions to perform the foregoing method for measuring the composition and property of the formation fluid. The method and system can measure the composition and property of the formation fluid, and improve the efficiency and accuracy of well logging.

IPC Classes  ?

• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• G06F 17/00 - Digital computing or data processing equipment or methods, specially adapted for specific functions

Abstract

A horizontal-to-vertical drilling module for a deep well includes a fixed plate (1) provided with a first guide hole having a turning section (11), a core breaking section (13) and a moving section (12); a movable plate (2) movably mounted on one side of the fixed plate and provided with a second guide hole having a turning driving section (21), a core breaking driving section (23) and a moving driving section (22), the projection of the first guide hole on the movable plate intersecting with the second guide hole; a coring module (3) positioned at the other side of the fixed plate and provided with a moving column (31) on the side facing the fixed plate; and a moving slider (4) having an open groove (41), the moving slider being installed in the first guide hole and rotatably connected to the coring module.

IPC Classes  ?

• E21B 25/10 - Formed core retaining or severing means
• E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil

Abstract

Disclosed are a heavy oil activator, a preparation method and use thereof. The heavy oil activator has a structural formula shown in Formula (1). In Formula (1), x, y, z, m, and n are respectively mass fractions of corresponding chain segments in the polymer, m being 0.75-0.85, y being 0.20-0.24, and x, z, and n all being 0.001-0.01; and p is a natural number between 2 and 9. The activating polymer provided has the effects of increasing viscosity of an aqueous phase while reducing viscosity of crude oil, and can serve both as a displacing agent and a viscosity reducer to realize integration of the two agents. The activating polymer can increase viscosity of an aqueous phase, has a displacement effect, can emulsify and disperse crude oil, and increase fluidity of a mixed phase; the dispersed crude oil continues to interact with crude oil that has not contacted the polymer, and the aqueous phase interacts with the mixed oil phase as well as new oil, by way of which continuous interactions, more crude oil can be constantly produced. The activating polymer has a relatively low interfacial tension and exhibits a certain degree of oil washing capability.

IPC Classes  ?

• C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
• C08F 283/06 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals
• E21B 43/16 - Enhanced recovery methods for obtaining hydrocarbons

Abstract

A horizontal rotation and vertical drilling module for a deep well, comprising: a fixing plate (1) on which a first guide hole is provided, the first guide hole having a turnover section (11), a movement section (12), and a core folding section (13), wherein the movement section is located between the turnover section and the core folding section; a movable plate (2) that is movably mounted on one side of the fixing plate and is provided with a second guide hole, the second guide hole having a turnover driving section (21), a movement driving section (22), and a core folding driving section (23), wherein the movement driving section is located between the turnover driving section and the core folding driving section, and a projection of the first guide hole on the movable plate is intersected with the second guide hole; a coring module (3) located on the other side of the fixing plate, and a moving protrusion column (31) being provided on a side surface, facing the fixed plate, of the coring module, wherein the moving protrusion column penetrates through the first guide hole and extends into the second guide hole; and a movement sliding block (4) having an open slot (41), mounted in the first guide hole, and rotatably connected to the coring module, so that the moving protrusion column can slide into and out of the open slot. The structure of the horizontal rotation and vertical drilling module for the deep well is simple, the actions of coring, core folding, turning over and core pushing can be completed, and the use requirements can be better met.

IPC Classes  ?

• E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores

Abstract

Disclosed is a tubular column for drill-free and catch-free integrated well cementing and well completion, the tubular column comprising a casing tubular column, and a setting tool string tubular column mounted in the casing tubular column and having a lower section thereof closed. The casing tubular column comprises an on/off-type cementing device (6), an external packer (8) and an inner seal short joint (9) connected in sequence from top to bottom, wherein the external packer is provided with a pressure transmitting hole. The setting tool string tubular column comprises an outer seal short joint (5), a bumping base (7) and an inner sealing device (11) connected in sequence from top to bottom, wherein the outer seal short joint is provided with an overflowing hole (17), the overflowing hole is located between the on/off-type cementing device and the inner seal short joint, the on/off-type cementing device and the outer seal short joint are sealed relative to each other, the inner seal short joint and the inner sealing device are sealed relative to each other, and an anchoring mechanism for releasing a grip is provided between the on/off-type cementing device and the outer seal short joint. Moreover, a method of drill-free and catch-free integrated well cementing and well completion is disclosed.

IPC Classes  ?

• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• E21B 33/12 - PackersPlugs

Abstract

Disclosed are a thickened oil activating agent and a preparation method and the use thereof. The thickened oil activating agent is a polymer as shown in a structural formula such as formula (I), where x, y, z, m and n are respectively mass fractions of corresponding chain segments in the polymer, m is 0.75 to 0.85, y is 0.20 to 0.24, and x, z and n are all 0.001 to 0.01; and p is a natural number between 2 to 9. The activating polymer provided in the present invention has the effects of increasing aqueous phase viscosity and reducing the crude oil viscosity at the same time, and can be used as both a flooding agent and a viscosity reducer, thus achieving the aim of one substance acting as two agents. The activating polymer can increase the aqueous phase viscosity, has the function of displacement, can emulsify and disperse the crude oil, and increases the flowability of the mixed phase. Moreover, the dispersed crude oil continues to react with non-contacted crude oil. At the same time, the aqueous phase reacts not only with the mixed oil phase, but also with the new oil, one after another, thereby continually activating more crude oil. The activating polymer of the present invention has a low interfacial tension and a certain oil-washing ability.

IPC Classes  ?

• C08F 283/06 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polyethers, polyoxymethylenes or polyacetals
• C08F 220/56 - AcrylamideMethacrylamide
• C08F 220/34 - Esters containing nitrogen
• C08F 220/36 - Esters containing nitrogen containing oxygen in addition to the carboxy oxygen
• C08F 216/36 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical by a ketonic radical
• C09K 8/588 - Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids characterised by the use of specific polymers
• C09K 8/88 - Compositions based on water or polar solvents containing organic compounds macromolecular compounds
• E21B 43/22 - Use of chemicals or bacterial activity

Abstract

The present disclosure relates to a method for a simulated moving bed to adsorb and separate polycyclic aromatic hydrocarbons. Zeolite, metal oxide and metal-modified materials are employed as adsorbent. Firstly, diesel oil flows through pre-treatment adsorbent to remove the trace amount of impurities. Secondly, the purified diesel oil flows through the simulated moving bed so that the PAHs can be separated from diesel oil. In this process, the valves are switched periodically, leading to the relative movement of adsorption beds. At the same time, desorbent is pumped into the equipment to wash out PAHs, achieving the continuous adsorption-regeneration operation. Thirdly, simple distillation is employed to separate desorbent from clean diesel oil and PAHs, respectively. Finally, the fractions of clean diesel oil and PAHs can be obtained, respectively. The separated desorbent can be recycled. The PAHs removal rate can reach to 90%.

IPC Classes  ?

• C10G 25/08 - Refining of hydrocarbon oils, in the absence of hydrogen, with solid sorbents with moving sorbents or sorbents dispersed in the oil according to the "moving bed" technique
• B01D 15/02 - Separating processes involving the treatment of liquids with solid sorbentsApparatus therefor with moving adsorbents
• C10G 25/03 - Refining of hydrocarbon oils, in the absence of hydrogen, with solid sorbents with ion-exchange material with crystalline alumino-silicates, e.g. molecular sieves
• C10G 53/08 - Treatment of hydrocarbon oils, in the absence of hydrogen, by two or more refining processes plural serial stages only including at least one sorption step

Abstract

A wire follow-up protection structure of an electric reducer includes a deformation mechanism with a variable length and sliding plates, the sliding plates being symmetrically disposed on both sides of the deformation mechanism, the deformation mechanism being supported on the sliding plates, the sliding plates limiting the deformation mechanism such that the deformation mechanism deforms between the sliding plates, a continuous run-through channel being preset within the deformation mechanism, the deformation mechanism being disposed to be rotationally connected to the electric reducer and slidably connected to a main body of a coring device, the channel being disposed as a passage for wire.

IPC Classes  ?

• H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs
• E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
• E21B 17/02 - CouplingsJoints

Abstract

A real-time analysis system for engineering ship operation measured on the basis of ship posture. Comprising: a central processing unit (10), a position monitoring unit (20) for detecting and providing positional posture information and heading information of the engineering ship at a predetermined time, and providing the positional posture information and heading information of the engineering ship at the predetermined time to the central processing unit (10); a manual data input unit (30), the manual data input unit (30) being connected to the central processing unit (10), and being capable of providing pipeline model data to the central processing unit (10) by means of manual input; and a display unit (40), the display unit (40) being connected to the central processing unit (10) and displaying the pipeline dynamic response data on the basis of the processed data provided by the central processing unit (10).

IPC Classes  ?

• G01L 5/00 - Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes

Abstract

The present application provides a sidewall coring structure directly driven by an electric motor comprising a drill bit, an electric motor and a speed reducer, the electric motor and the speed reducer are an integrated structure and the drill bit is directly connected to an output of the speed reducer. The coring structure directly drives the drill bit through an integrated structure of the speed reducer and the electric motor; its transmission efficiency is greatly improved, meanwhile the coring structure is more simplified, with improved reliability, easier maintenance and reduced maintenance cost.

IPC Classes  ?

• E21B 7/04 - Directional drilling
• E21B 49/06 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools or scrapers
• H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears

Abstract

An in-line heat exchange cleaning system for liquid treatment comprising: a) a liquid treatment device comprising a heat exchanger (106) having a plurality of heat exchanger tubes with a given internal diameter, and being configured to create a treatment liquid flow passing through the heat exchanger tubes; b) a cleaning subsystem associated with the liquid treatment device and comprising a plurality of liquid carrying cleaning objects (102), the liquid carrying cleaning objects (102) being in frictional contact with the internal surfaces of the plurality of heat exchanger tubes, thereby cleaning the same. The system can implement in-line cleaning of heat exchange equipment, and process solutions usable in the system comprise strong acids at high temperatures and having a specific gravity greater or less than water.

IPC Classes  ?

• F28G 1/12 - Fluid-propelled scrapers, bullets, or like solid bodies
• F22B 37/48 - Devices or arrangements for removing water, minerals or sludge from boilers

Abstract

A method for a simulated moving bed to adsorb and separate polycyclic aromatic hydrocarbons. The method uses a molecular sieve, an oxide or a metal modified material as an adsorbent. Diesel undergoes pretreatment for the adsorption and removal of trace impurities, then passes into a simulated moving bed for the adsorption and separation of polycyclic aromatic hydrocarbons in the diesel. Periodic switching of material inlet and outlet valves causes adsorbent bed layers to move in an opposing manner, a desorbent is added, the polycyclic aromatic hydrocarbons are rinsed to implement an adsorption-regeneration continuous operation, a clean diesel component containing the desorbent and a polycyclic aromatic hydrocarbon component are obtained, the difference between the boiling points of the desorbent and the diesel component is large, the desorbent may be separated, recovered and recycled via distillation towers, and the clean diesel component and the polycyclic aromatic hydrocarbon component are obtained. The adsorption process of the method has the features of a low operating temperature, a low pressure, a continuous operation and low adsorbent loss, the adsorption process has a high removal capability with regard to polycyclic aromatic hydrocarbons in diesel, and the polycyclic aromatic hydrocarbon removal rate may reach 90%.

IPC Classes  ?

• C10G 25/08 - Refining of hydrocarbon oils, in the absence of hydrogen, with solid sorbents with moving sorbents or sorbents dispersed in the oil according to the "moving bed" technique
• B01D 15/02 - Separating processes involving the treatment of liquids with solid sorbentsApparatus therefor with moving adsorbents

Abstract

A drilling type sidewall coring apparatus, comprising: a main body, a transmission device, a bit mounted on the transmission device, a rack accommodated in the main body, and a plurality of first hydraulic oil cylinders, the transmission device mounted on the rack in a rotatable manner, the first hydraulic oil cylinders mounted on the main body, pistons of the first hydraulic oil cylinders connected with the rack, the telescopic motion of the pistons of the first hydraulic oil cylinders driving the rack to perform radial motion in the main body so as to make the bit protrude or retract from the main body. The electric motor is mounted in the main body and connected with the right angel speed reducer by the soft shaft. The electric motor transmits power by the soft shaft and the right angle speed reducer to drive the bit to rotate, the transmission efficiency is higher.

IPC Classes  ?

• E21B 49/06 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using side-wall drilling tools or scrapers
• E21B 4/04 - Electric drives
• E21B 4/00 - Drives for drilling, used in the borehole
• E21B 4/16 - Plural down-hole drives, e.g. for combined percussion and rotary drillingDrives for multi-bit drilling units
• E21B 4/18 - Anchoring or feeding in the borehole
• E21B 23/01 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like

Abstract

A system of formation sampling while drilling, comprising: a suction pup joint provided to pump out and clean the formation fluid; a sampling pup joint provided to sample and store the formation fluid; a setting pup joint provided between the suction pup joint and the sampling pup joint and provided to establish a fluid channel between the formation fluid and the suction pup joint, the sampling pup joint; and an electrohydraulic high voltage connection device provided between the setting pup joint and the sampling pup joint. The embodiments of the present invention can be applied in the field of formation exploration technology, the function of storing the formation sample in the process of logging while drilling can be accomplished and the current logging instrument can be effectively optimized, the universality and precision of the current logging function can be effectively improved according to the embodiments of the present invention.

IPC Classes  ?

• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• E21B 49/10 - Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers
• E21B 4/04 - Electric drives
• E21B 34/06 - Valve arrangements for boreholes or wells in wells
• E21B 47/06 - Measuring temperature or pressure

Abstract

A method of formation testing and a formation testing instrument are provided. The formation testing instrument includes a first pump, a dual packer module, a reverse injection module and a second pump. The dual packer module is provided with a support arm at one side thereof capable of setting after deployed; and the dual packer module is provided with first and second probes at the other side. The first probe is located above the second probe and the first and second probes can establish a channel with the formation. The second pump injects the acidizing liquid in the reverse injection module into the fluid region in the formation by the second probe; and the first pump sucks the fluid in the formation by the first probe.

IPC Classes  ?

• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
• E21B 49/10 - Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers

Abstract

A high-pressure fluid mixing pump control system and a fluid suction control method, the system comprises a transmission threaded rod and a resolver sensor, wherein: one end of the transmission threaded rod is connected to an oil cylinder piston of a mixing pump, while the other end of the transmission threaded rod is connected to the resolver sensor either directly or via a rotary element that rotates coaxially with the transmission threaded rod. The high-pressure fluid mixing pump control system implements precision control via a mechanical means, converts a linear motion of the piston into a rotary motion, and utilizes the resolver sensor for precision measurement of a rotation angle, thus acquiring a piston displacement amount, and finally acquiring a suction volume. At the same time, an accelerator and an electric brake are also designed, for controlling starting and stopping of the mixing pump.

IPC Classes  ?

• F16H 25/20 - Screw mechanisms
• G01D 5/04 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using leversMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using camsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means using gearing
• F04B 9/02 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
• F04B 49/06 - Control using electricity
• F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
• F04B 9/105 - Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
• F04B 49/02 - Stopping, starting, unloading or idling control
• F04B 53/14 - Pistons, piston-rods or piston-rod connections

Abstract

A drilling type sidewall coring device, comprising a main machine body, a transmission, a drill bit mounted on the transmission, a machine frame contained in the main machine body, and two or more first hydraulic cylinders. The transmission is mounted on the machine frame in a rotatable way, the first hydraulic cylinders are mounted on the main machine body, and pistons of the first hydraulic cylinders are connected with the machine frame, and the stretching and retracting motion of the pistons of the first hydraulic cylinders drives the machine frame to perform a radial motion in the main machine body, so that the drill bit stretches out or retracts from the main machine body. The drilling type sidewall coring device is provided with the machine frame in the main machine body, the transmission equipped with the drill bit is mounted on the machine frame, and the hydraulic cylinders are used to directly drive the machine frame to perform a radial motion in the main machine body, so as to realize the stretching and retraction of the drill bit. Such a structure is simple to implement and also reliable, improving the precision of coring. A right-angle reducer for driving the drill bit is mounted on the machine frame, a motor for driving the right-angle reducer is mounted in the main machine body, and the motor is connected with the right-angle reducer through a flexible shaft. The motor realizes power transfer through the flexible shaft and the right-angle reducer to drive the drill bit to rotate. The transfer efficiency is relatively high, and the power performance of the drill bit is sufficient in the process of coring, thus the rate of success of coring is increased remarkably.

IPC Classes  ?

• E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil

Abstract

A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity (NQ) of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.

IPC Classes  ?

• E21B 49/10 - Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers
• F16L 19/02 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells

Abstract

Disclosed is a system for sampling from formation while drilling, comprising: a suction sub (11), the suction sub being configured to suction out and clean a formation fluid; a sampling sub (8), the sampling sub being configured to sample and store the formation fluid; a setting sub (9), the setting sub being provided between the suction sub and the sampling sub, and the setting sub being configured to establish a fluid channel between the formation fluid and the suction sub and sampling sub; and an electro-hydraulic high-pressure connection apparatus, the electro-hydraulic high-pressure connection apparatus being provided between the setting sub and the sampling sub. The system can be applied to the field of geo-exploration technology, and can realise the function of storing formation samples in the process of logging while drilling, wherein each module is functionally independent, wellhead assembly is easy to operate on-site, and preparation and working efficiency of the logging operation can be effectively improved.

IPC Classes  ?

• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells

Abstract

An instrument pressure-bearing connection apparatus comprises an housing (4), and comprises an insulation fixed base front cover (17), an upper guide head (18), a circuit framework (15), a lower guide head (14), and an insulation fixed base rear cover (19). Two ends of the circuit framework (15) are separately connected to the upper guide head (18) and the lower guide head (14). The insulation fixed base front cover (17) is mounted on one end of the upper guide head (18). The insulation fixed base rear cover (19) is sleeved inside the lower guide head (14). One end of the insulation fixed base rear cover (19) is provided with a first electric connector, and the insulation fixed base front cover (17) is provided with a second electric connector. The first electric connector is configured to be fitted to the second electric connector disposed on an insulation fixed base front cover (17) of another instrument pressure-bearing connection apparatus. An instrument pressure-bearing connection assembly comprises an instrument pressure-bearing connection apparatus and a pressure-bearing electric connection connector (6). The pressure-bearing electric connection connector (6) is fitted to and inserted with a second electric connector on an insulation fixed base front cover (17) on one instrument pressure-bearing connection apparatus by means of a third electric connector on one end, and is fitted to and inserted with a first electric connector on an insulation fixed base rear cover (19) on another instrument pressure-bearing connection apparatus by means of a fourth electric connector on the other end.

IPC Classes  ?

• E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like

Abstract

Disclosed is a liquid anti-rolling, positioned filling and circulating apparatus for a liquefied natural gas storage tank, comprising a main unloading pipe (1) with a main control switch valve (4) mounted thereon, a heavy component branch unloading pipe (5) with a heavy component branch pipe switch control valve (7) mounted thereon and in communication with the main unloading pipe (1), and a light component branch unloading pipe (2) with a light component branch pipe switch control valve (3) mounted thereon. An output port of the heavy component branch unloading pipe (5) is in communication with an inlet of a heavy component branch pipe on which multiple branch switch control valves (8, 9, 10, 11) are mounted, and an output port of the light component branch unloading pipe (2) is in communication with an inlet of a light component branch pipe on which multiple branch switch control valves (12, 13, 14, 15, 16) are mounted. Injection rings (19) are separately mounted in the liquefied natural gas storage tank, each injection ring (19) is provided with multiple nozzles (20), the outlet ports of the heavy component branch pipe communicate with and correspond respectively one to one with multiple injection rings provided on the upper part, and the outlet ports of the light component branch pipe communicate with and correspond respectively one to one with injection rings provided on the lower part. The apparatus has the advantage of a low probability of rolling.

IPC Classes  ?

• F17C 5/02 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with liquefied gases
• F17C 13/00 - Details of vessels or of the filling or discharging of vessels

Abstract

A method for locating a spill area of a Liquefied Natural Gas (LNG) tank comprises steps: (a) installing 4 groups of bulbs (2) on an outer wall of the tank (1) as reference points; (b) installing four thermal infrared imagers (3) out of the tank (1); (c) turning on the eight bulbs (2), turning on the four thermal infrared imagers (3), performing infrared imaging scanning on the LNG tank (1) to form a temperature distribution infrared imagery, and then transmitting the temperature distribution infrared imagery to a computer for analysis and processing; (d) taking a screenshot on a cooling image part where a local continuous cooling change occurs in an overall outer wall temperature distribution image of the LNG tank (1), and drawing an isotherm based on the cooling image part; (e) randomly obtaining N points on the isotherm where controlling temperature is located, calculating corresponding tank spill points that correspond to the N points on the outer wall of the tank (1), and connecting all the corresponding tank spill points together. An area enclosed by a line obtained thereby is an actual tank spill area. The use of the method can improve working reliability of the LNG tank.

IPC Classes  ?

• F17C 13/02 - Special adaptations of indicating, measuring, or monitoring equipment

Abstract

2 corrosion of oil field water system at a high temperature (150˜250° C.).

IPC Classes  ?

• C09K 8/54 - Compositions for in situ inhibition of corrosion in boreholes or wells
• C23F 11/12 - Oxygen-containing compounds
• C23F 11/14 - Nitrogen-containing compounds
• C23F 11/16 - Sulfur-containing compounds
• C23F 11/10 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors

Abstract

Disclosed are an integral gas spring assembly and a formation fluid sampler. The gas spring assembly comprises a cylinder body, a piston, a sealing element and a gas injection port, wherein high-pressure nitrogen is filled between the piston and the bottom of the cylinder body, so that a compressed nitrogen cavity is formed in the cylinder body; the piston generates an upward thrust force under the action of the high-pressure nitrogen, wherein the effective stroke of the piston is H; the length of the cylinder body is less than the sum of the length of the piston and the effective stroke H of the piston, and a part of the piston can move out of the cylinder body. The sealing element is arranged at the external diameter of the gas spring assembly, and when entirely arranged in a formation fluid sampling bottle, the gas spring assembly can move up and down and separate a sampling cavity from a slurry cavity. The gas spring assembly uses the volume increased by the extension of the piston to compensate the volume dose which is reduced with the temperature drop after the formation fluid sampling bottle conducts sampling, and uses the thrust force of the piston to maintain a predetermined pressure maintaining the value of a formation fluid at the same time.

IPC Classes  ?

• E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
• F16F 9/00 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium

Abstract

A high-pressure fluid mixing pump control system and a fluid suction control method. The system comprises a transmission threaded rod and a resolver sensor. One end of the transmission threaded rod is connected to an oil cylinder piston of a mixing pump, while the other end of the transmission threaded rod is connected to the resolver sensor either directly or via a rotary element that rotates coaxially with the transmission threaded rod. The high-pressure fluid mixing pump control system implements precision control via a mechanical means, converts the linear motion of the piston into a rotary motion, and utilizes the resolver sensor for precision measurement of a rotation angle, thus acquiring a piston displacement amount, and finally acquiring a suction volume. While at the same time, also designed are an accelerator and an electric gate, used for controlling starting and stopping of the mixing pump. Compared with the prior art, the high-pressure fluid mixing pump control system has the advantages of a simplified structure, compactness, and great stability and reliability.

IPC Classes  ?

• F04B 49/20 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups by changing the driving speed
• F04B 49/06 - Control using electricity

Abstract

A rock formation testing method and a formation testing instrument, comprising a first pump, a dual-packer module, a reverse injection module, and a second pump. The dual-packer module has arranged at one side thereof a support arm. The support arm is capable of packing when opened. The dual-packer module has arranged at another side thereof a first probe and a second probe, where the first probe is located above the second probe, and the first probe and the second probe are capable of establishing channels with a formation. The second pump injects an acidified fluid in the reverse injection module into a fluid area in the formation via the second probe. The first pump extracts fluid from the formation via the first probe.

IPC Classes  ?

• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

The present disclosure relates to a grouting and welding combined connection joint and an offshore installation method thereof, characterized in that: it comprises a set of grouting systems disposed inside of the annular space formed by an inner shell of the central pore canal of a column with large cross section and an outer wall of a column with small cross section, as well as a group of brackets welded on a top deck of a column with small cross section and an inner shell of the central pore canal of the column with large cross section. The grouting and welding combined connection joint provided by the present disclosure has advantages of being able to adapt to the connection of different dimensions of columns, and having simple offshore installation, highly reliable structural safety and low cost.

IPC Classes  ?

• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
• F16L 1/26 - Repairing or joining pipes on or under water

Abstract

Disclosed is a pup joint for releasing sidewall contact of a stratigraphic test device. The pup joint comprises a first release arm (1), a first three-way reversing valve set (V1), a two-way reversing valve set (V2) and a third three-way reversing valve set (V4), wherein a withdrawal chamber (Q11) of the first release arm (1) is connected with an energy storage chamber (NQ) able to communicate with an accumulator and the first three-way reversing valve set (V1) of the two-way reversing valve set (V2), the two-way reversing valve set (V2) can communicate with a hydraulic oil main line (G2) of a hydraulic system, and an extension chamber (Q12) of the first release arm (1) is connected to the hydraulic oil main line (G2) able to communicate with the hydraulic system and the third three-way reversing valve set (V4) of the oil return main line (G1). The releasing pup joint effectively solves the problem of release when mud adheres to an oil and gas layer tester and makes same stuck midway during drilling.

IPC Classes  ?

• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

An integrative deep draft floating production platform with unconditional stability and an offshore installation method thereof are disclosed. The platform comprises an ring ballast tank at the bottom, some columns with small cross sections, an ring buoyancy tank at the middle part, some columns with large cross sections, and an upper drilling equipment and oil gas processing module. The ballast tank adopts a permanently fixed ballast, and the tank is internally filled with weights to ensure that the center of buoyancy of the platform is higher than the center of gravity. The drilling equipment and oil gas processing module is installed in the construction site, and the platform is transported to the installation site by a dry tow or wet tow as a whole and then is installed. The platform can be applied to deepwater oil and gas exploitation under harsh marine environment.

IPC Classes  ?

• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices

Abstract

An integrally equipped heavy draught floating type oil production platform with unconditional stability and an offshore installation method thereof are disclosed. The platform comprises an annular ballast tank(1) at the bottom, some columns with small cross sections(2), an annular buoyancy tank(3) at the middle part, some columns with large cross sections(4), and an upper drilling machine and oil gas processing module(5). The ballast tank adopts a permanently fixed ballast mode, and the tank is internally filled with weights to ensure that the buoyant center of the platform is higher than the center of gravity. The columns with large and small cross sections are uniformly arranged on the buoyancy tank and the ballast tank respectively, and the lower parts thereof are respectively integrated with the buoyancy tank and the ballast tank. Each column with a large cross section is provided with a central pore canal(7) axially, a lower part in the central pore canal is provided with a chopping board connection structure (8) with a groove. After the construction is completed, the columns with small cross sections are inserted into and pass through the central pore canals of the columns with large cross sections correspondingly, and the platform is in a folding state. Each column with a large cross section is provided with a group of mooring cables(15). The drilling machine and oil gas processing module is installed in the construction site, and the platform is transported to the installation site by a dry tow or wet tow as a whole and then is installed. The platform can be applied to deepwater oil and gas exploitation under harsh marine environment.

IPC Classes  ?

• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices

Abstract

A deep draught combined platform with truss column includes a ring-shaped ballast tank (1), a plurality of upright columns (2) at the corners of the ring-shaped ballast tank, and a drilling rig and an oil-gas treatment module (4) at the top of the upright columns. The ring-shaped ballast tank is filled with heavy articles permanently and fixedly so as to ensure the center of buoyancy above the center of the gravity of the platform. The lower parts of the upright columns are integrated with the ring-shaped ballast tank. The upper parts of the upright columns are provided with cylindrical or generally cylindrical housing structure, and the lower parts thereof are provided with truss structure; the middle parts of the neighboring upright columns are connected with floating boxes (3) which provide enough buoyancy for the platform. Each upright column is equipped with a group of mooring cables (6), and the mooring cables are connected to seabed anchor points in conventional anchoring manners. The platform has good motion performance, wide adaptive operation of deep water, strong integral structure strength, little weight and low construction cost. The platform can be widely used in oil and gas recovery in deep water under bad marine environment.

IPC Classes  ?

• B63B 35/44 - Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices

Abstract

The invention discloses a biodegradable composite oxygen-barrier film and its preparation method and use. The biodegradable composite oxygen-barrier film is composed of at least two support layers and barrier layer which is located in each of the two support layers. Said support layer is selected from at least one of the following materials: polylactic acid, polybutylene succinate, polycaprolactone, poly(butylene adipate-co-terephthalate), poly(β-hydroxybutyrate) and poly(β-hydroxybutyrate-co-hydroxyvalerate); said barrier layers located in each of the two support layers are same or different, and the barrier layer is selected from poly(1,2-propylene carbonate) and nano-montmorillonite modified poly(1,2-propylene carbonate). The biodegradable composite oxygen-barrier film can be used as food or medicine package, and it will help to prolong shelf-life of food and medicine and the like; it can also prevent white-pollution.

IPC Classes  ?

• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
• C08J 5/18 - Manufacture of films or sheets
• B65D 65/40 - Applications of laminates for particular packaging purposes

Abstract

Computer-implemented systems and methods are provided for optimizing hydrocarbon recovery from subsurface formations, including subsurface formations having bottom water or edgewater. A system and method can be configured to receive data indicative of by-pass oil areas in the subsurface formation from reservoir simulation, identify flow barriers in the subsurface formation based on the by-pass oil areas identified by the reservoir simulation, and predict the lateral extension of the identified flow barriers in the subsurface formation. Infill horizontal wells can be placed at areas of the subsurface formation relative to the flow barriers such that production from a horizontal well in the subsurface formation optimizes hydrocarbon recovery.

IPC Classes  ?

• G06G 7/48 - Analogue computers for specific processes, systems, or devices, e.g. simulators

Abstract

Computer-implemented systems and methods are provided for optimizing hydrocarbon recovery from subsurface formations, including subsurface formations having bottom water or edgewater. A system and method can be configured to receive data indicative of by-pass oil areas in the subsurface formation from reservoir simulation, identify flow barriers in the subsurface formation based on the by-pass oil areas identified by the reservoir simulation, and predict the lateral extension of the identified flow barriers in the subsurface formation. Infill horizontal wells can be placed at areas of the subsurface formation relative to the flow barriers such that production from a horizontal well in the subsurface formation optimizes hydrocarbon recovery.

IPC Classes  ?

• E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
• G01V 1/30 - Analysis

Abstract

A submarine device includes a hollow tank body (5), a marine riser (3), blowout preventer (BOP) (4) and tie back stem (6). The BOP (4) is located on the hollow tank body (5). The marine riser (3) is connected to a drilling vessel (1) at the upper end and connected to the BOP (4) at the lower end. The tie back stem (6) is connected to the hollow tank body (5) at the upper end and connected to the seabed wellhead by the submarine wellhead apparatus (7) at the lower end and thus connected to the casing (9) for producing oil or gas in the reservoir by the submarine wellhead apparatus (7). A passage for communicating the BOP and the tie back stem system is provided on the hollow tank body. The pipe string for conveying oil, gas, or bit cuttings and drilling mud in the drilling process is divided into two sections, i.e. the tie back stem (6) and the casing (9), by the wellhead apparatus settled on the seabed. Thereby the security of the drilling platform or the drilling vessel in the drilling process is ensured and the operability of the producing system is enhanced.

IPC Classes  ?

• E21B 43/013 - Connecting a production flow line to an underwater well head

Abstract

This invention relates to a method for processing oil sand bitumen including solvent deasphalting and visbreaking oil sand bitumen to yield de-oiled asphalt (DOA) and components capable of being transmitted in pipeline. The method for processing oil sand bitumen provided by this invention can effectively transmit oil sand bitumen in pipeline with the advantages of simple operation low equipment cost and significantly reduced operating cost. This method not only can solve the problems arising from enormous working capital required for purchasing diluting agent needed by the traditional unit for processing oil sand bitumen and complications in looking for users, but also can drastically reduce the high investment and high processing cost of such main upgrading avenues as coking and converting heavy oils to light distillates. This invention can enhance the effective products yield and increase the sales income. This method for processing oil sand bitumen can make the recovery of sulfur contained therein by means of the downstream processes easier to significantly reduce the sulfur recovery cost and ensure compliance with the pollutants emission standard.

IPC Classes  ?

• C10G 55/04 - Treatment of hydrocarbon oils, in the absence of hydrogen, by at least one refining process and at least one cracking process plural serial stages only including at least one thermal cracking step
• C10G 9/00 - Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
• C10G 21/00 - Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; esters; surface-active chemical agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations; synthetic materials for absorbing oil; enamel and glass staining chemicals; gas purifying preparations; flocculants; water purifying chemicals; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; separating and unsticking (ungluing) preparations; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations; condensation-preventing chemicals; chemicals for industrial purposes; mold-release preparations; disincrustants; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins; unprocessed artificial resins; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for industrial purposes; glue for industrial purposes; polyurethane; cellulose slurry; carbon sulphide; dressing and finishing preparations for textiles; filtering materials (chemical preparations); fire-preventing preparations; chemical reagents (other than for medical or veterinary purposes). Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; non-chemical additives to motor-fuel; fuel gas; ceresine; oil-gas; coal; industrial wax; paraffin; candles; dust laying compositions; quenching oil; electricity; electrical power. Resin compound board; clinker ballast; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; vaseline; waterproof roll material; hydraulic bitumen; building materials not of metal; buildings not of metal; building glass. Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing; disinfecting; elevator installation and repair. Transport; removal services; packaging of goods; hauling; stevedoring; car parking; vehicle rental; storage; rental of warehouses; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline. Engineering; research and development for others; quality control; technical research; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects; computer software design; litigation services; weather forecasting; dress designing; intangible asset evaluation.

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; esters; surface-active chemical agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations; synthetic materials for absorbing oil; enamel and glass staining chemicals; gas purifying preparations; flocculants; water purifying chemicals; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; separating and unsticking (ungluing) preparations; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations; condensation-preventing chemicals; chemicals for industrial purposes; mold-release preparations; disincrustants; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins; unprocessed artificial resins; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for industrial purposes; glue for industrial purposes; polyurethane; cellulose slurry; carbon sulphide; dressing and finishing preparations for textiles; filtering materials (chemical preparations); fire-preventing preparations; chemical reagents (other than for medical or veterinary purposes). Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; non-chemical additives to motor-fuel; fuel gas; ceresine; oil-gas; coal; industrial wax; paraffin; candles; dust laying compositions; quenching oil; electricity; electrical power. Resin compound board; clinker ballast; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; vaseline; waterproof roll material; hydraulic bitumen; building materials not of metal; buildings not of metal; building glass. Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing; disinfecting; elevator installation and repair. Transport; removal services; packaging of goods; hauling; stevedoring; car parking; vehicle rental; storage; rental of warehouses; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline. Engineering; research and development for others; quality control; technical research; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects; computer software design; litigation services; weather forecasting; dress designing; intangible asset evaluation.

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; esters; surface-active chemical agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations; synthetic materials for absorbing oil; enamel and glass staining-chemicals; gas purifying preparations; flocculants; water purifying chemicals; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; separating and unsticking (ungluing) preparations; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations; condensation-preventing chemicals; chemicals for industrial purposes; mold-release preparations; disincrustants; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins; unprocessed artificial resins; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; quenching oil; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for industrial purposes; glue for industrial purposes; polyurethane; cellulose slurry; electricity; electrical power; carbon sulphide; dressing and finishing preparations for textiles; filtering materials (chemical preparations); fire-preventing preparations; chemical reagents (other than for medical or veterinary purposes). Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; non-chemical additives to motor-fuel; fuel gas; ceresine; oil-gas; coal; industrial wax; paraffin; candles; dust laying compositions. Resin compound board; clinker ballast; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; vaseline; waterproof roll material; hydraulic bitumen; building materials not of metal; buildings not of metal; building glass. Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing; disinfecting; elevator installation and repair. Transport; removal services; packaging of goods; hauling; stevedoring; car parking; vehicle rental; storage; rental of warehouses; liquefied gas station; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline. Engineering; research and development for others; quality control; technical research; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects; computer software design; litigation services; weather forecasting; dress designing; intangible asset evaluation.

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; esters; surface-active chemical agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations; synthetic materials for absorbing oil; enamel and glass staining-chemicals; gas purifying preparations; flocculants; water purifying chemicals; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; separating and unsticking (ungluing) preparations; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations; condensation-preventing chemicals; chemicals for industrial purposes; mold-release preparations; disincrustants; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins; unprocessed artificial resins; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; quenching oil; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for industrial purposes; glue for industrial purposes; polyurethane; cellulose slurry; electricity; electrical power; carbon sulphide; dressing and finishing preparations for textiles; filtering materials (chemical preparations); fire-preventing preparations; chemical reagents (other than for medical or veterinary purposes). Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; non-chemical additives to motor-fuel; fuel gas; ceresine; oil-gas; coal; industrial wax; paraffin; candles; dust laying compositions. Resin compound board; clinker ballast; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; vaseline; waterproof roll material; hydraulic bitumen; building materials not of metal; buildings not of metal; building glass. Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing; disinfecting; elevator installation and repair. Transport; removal services; packaging of goods; hauling; stevedoring; car parking; vehicle rental; storage; rental of warehouses; liquefied gas station; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline. Engineering; research and development for others; quality control; technical research; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects; computer software design; litigation services; weather forecasting; dress designing; intangible asset evaluation.

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; acetic acid esters; surface-active chemical agents for general use in the industrial arts, namely, as wetting, spreading, emulsifying, dispersing and penetrating agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations, namely, combustion-supporting preparations; synthetic materials for absorbing oil for industrial use; enamel and glass staining-chemicals for use in processing industry; gas purifying preparations, namely, dimethoxyethane; flocculants for use in sewage treatment; water purifying chemicals for industrial use; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations, namely, simethicone; condensation-preventing chemicals for industrial use; chemicals for petrochemical industry use; mold-release preparations; disincrustants for industrial use; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides, namely fertilizers for agricultural use; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins for industrial use; unprocessed artificial resins for industrial use; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; quenching oil for industrial use; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for general industrial use; glue for petrochemical industry use; polyurethane; cellulose slurry; carbon sulphide; dressing and finishing preparations, namely, chemicals for textiles; chemical preparations in the nature of filtering materials for industrial use; fire-preventing preparations, namely, fire retardant compositions for commercial and domestic use; chemical reagents not for medical or veterinary purposes Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil, namely, complex lipid oil; benzine; diesel oil; kerosene; combustible oil for fuel; non-chemical additives to motor-fuel; fuel gas; ceresine, namely, ozocerite; oil-gas, namely, liquefied petroleum gas; coal; industrial wax; paraffin; candles; dust laying compositions [ Resin compound board, namely, finish plasters made of colored artificial resin; gypsum; cement mixes; floor tiles not of metal; refractory materials, namely, sheets; bituminous products for building, namely, bituminous roof coatings; asphalt paving, namely, tiles, stones; tarred strips for building namely, tarred felt; waterproof roll material, namely, waterproof felt; hydraulic bitumen; building materials not of metal, namely, soffits; buildings not of metal, namely, prefabricated non-metal buildings; building glass, namely, glass sheets for building ] [ Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; oil processing machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; automobile service station service; vehicle service stations; custom shipbuilding; rustproofing; washing of pipes; disinfecting; elevator installation and repair ] [ Transport by cargo ship; engineering equipment removal services; packaging of goods for transportation; truck hauling; stevedoring; car parking; vehicle rental; storage of petroleum and natural gas; rental of warehouses space; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline, namely, transmission of oil and gas through pipelines ] [ Engineering; research and development for new products and medicines for others; quality control for others; technical research in the field of petrochemical industry; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects, namely, planning and construction of buildings; computer software design for others; litigation services; weather forecasting; dress designing; intangible asset evaluation, namely, intellectual property consultation ]

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; acetic acid esters; surface-active chemical agents for general use in the industrial arts, namely, as wetting, spreading, emulsifying, dispersing and penetrating agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations, namely, combustion-supporting preparations; synthetic materials for absorbing oil for industrial use; enamel and glass staining-chemicals for use in processing industry; gas purifying preparations, namely, dimethoxyethane; flocculants for use in sewage treatment; water purifying chemicals for industrial use; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations, namely, simethicone; condensation-preventing chemicals for industrial use; chemicals for petrochemical industry use; mold-release preparations; disincrustants for industrial use; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides, namely fertilizers for agricultural use; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins for industrial use; unprocessed artificial resins for industrial use; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; quenching oil for industrial use; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for general industrial use; glue for petrochemical industry use; polyurethane; cellulose slurry; carbon sulphide; dressing and finishing preparations, namely, chemicals for textiles; chemical preparations in the nature of filtering materials for industrial use; fire-preventing preparations, namely, fire retardant compositions for commercial and domestic use; chemical reagents not for medical or veterinary purposes Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil, namely, complex lipid oil; benzine; diesel oil; kerosene; combustible oil for fuel; non-chemical additives to motor-fuel; fuel gas; ceresine, namely, ozocerite; oil-gas, namely, liquefied petroleum gas; coal; industrial wax; paraffin; candles; dust laying compositions [Resin compound board, namely, finish plasters made of colored artificial resin; clinker ballast, namely, for metalling; gypsum; asbestos boards; cement mixes; floor tiles not of metal; fired refractory materials, namely, sheets; bituminous products for building, namely, bituminous roof coatings; asphalt paving; tarred strips for building namely, tarred felt; petroleum jelly; waterproof roll material, namely, waterproof felt; hydraulic bitumen; building materials not of metal, namely, soffits; buildings not of metal, namely, prefabricated non-metal buildings; building glass, namely, glass sheets for building] [Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing of pipes; disinfecting; elevator installation and repair] [Transport by cargo ship; engineering equipment removal services; packaging of goods for transportation; truck hauling; stevedoring; car parking; vehicle rental; storage of petroleum and natural gas; rental of warehouses space; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline, namely, transmission of oil and gas through pipelines] [Engineering; research and development for new products and medicines for others; quality control for others; technical research in the field of petrochemical industry; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects, namely, planning and construction of buildings; computer software design for others; litigation services; weather forecasting; dress designing; intangible asset evaluation, namely, intellectual property evaluation]

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; acetic acid esters; surface-active chemical agents for general use in the industrial arts, namely, as wetting, spreading, emulsifying, dispersing and penetrating agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; chemical additives for fuel treatment in the nature of fuel-saving preparations, namely, combustion-supporting preparations; chemical composition for absorbing spills in the nature of synthetic materials for absorbing oil for industrial use; enamel and glass staining-chemicals for use in oil processing industry; gas purifying preparations, namely, dimethoxyethane; flocculants for use in sewage treatment; water purifying chemicals for industrial use; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations, namely, simethicone; condensation-preventing chemicals for glass and plastic surfaces; chemicals for petrochemical industry use; mold-release preparations; disincrustants for use in the petrochemical industry; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides, namely fertilizers for agricultural use; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins for use in the manufacture of molding compounds; unprocessed artificial resins for use in the manufacture of molding compounds; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; coolants, namely, quenching oil for industrial use; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for general industrial use; glue for petrochemical industry use; polyurethane; cellulose slurry; electricity; electrical power; carbon sulphide; dressing and finishing preparations, namely, chemicals used in the manufacture of textiles; chemical preparations in the nature of filtering materials for petrochemical industry use; fire-preventing preparations, namely, fire retardant compositions for commercial and domestic use; chemical reagents not for medical or veterinary purposes Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil, namely, complex lipid oil; benzine; diesel oil; kerosene; combustible oil for fuel; non-chemical additives to motor-fuel; fuel gas; ceresine, namely, ozocerite; oil-gas, namely, liquefied petroleum gas; coal; industrial wax; paraffin; candles; dust laying compositions [ Resin compound board, namely, finish plasters made of colored artificial resin; gypsum; cement mixes; floor tiles not of metal; refractory materials, namely, sheets; bituminous products for building, namely, bituminous roof coatings; asphalt paving; tarred strips for building namely, tarred felt; petroleum jelly; waterproof roll material, namely, waterproof roofing felt; hydraulic bitumen; building materials not of metal, namely, soffits; buildings not of metal, namely, prefabricated non-metal buildings; building glass, namely, glass sheets for building ] [ Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; automobile service station services; vehicle service stations; shipbuilding; rustproofing; washing of pipe; disinfecting; elevator installation and repair ] [ Transport by cargo ship; engineering equipment removal services; packaging of goods for transportation; truck hauling; stevedoring; car parking; vehicle rental; storage of petroleum and natural gas; rental of warehouses space; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline, namely, transmission of oil and gas through pipelines ] [ Engineering; research and development for new products and medicines for others; quality control for others; technical research in the field of petrochemical industry; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects, namely, planning and construction of buildings; computer software design for others; litigation services; weather forecasting; dress designing; legal services in the nature of intangible asset evaluation, namely, intellectual property evaluation ]

Goods & Services

Solidified gases for industrial purposes; liquefied carbon dioxide; graphite for industrial purposes; caustic alkali; sulphuric acid; hydrochloric acid; carbonates; benzoic acid; acetic acid; formic acid; propionic acid; butyric acid; methyl-acrylic acid; hexanedioic acid; terephthalic acid; methane; ethylene; butylene; toluene; styrene; epoxy propane; ethyl alcohol; glycerine for industrial purposes; methyl ether; refined methanol; epoxy ethane; phenol for industrial purposes; hydrazine; formamide; acetone; formaldehyde; benzaldehyde; acetic acid esters; surface-active chemical agents for general use in the industrial arts, namely, as wetting, spreading, emulsifying, dispersing and penetrating agents; agglutinants for concrete; chemical additives for motor fuel; antifreeze; oil-separating chemicals; fuel-saving preparations, namely, combustion-supporting preparations; synthetic materials for absorbing oil for industrial use; enamel and glass staining-chemicals for use in processing industry; gas purifying preparations, namely, dimethoxyethane; flocculants for use in sewage treatment; water purifying chemicals for industrial use; emollients for industrial purposes; cleaning preparations for industrial purpose; carbon black for industrial purposes; chemical additives for drilling muds; activated carbons; chemical preparations for the manufacture of paints; chemical condensation preparations, namely, simethicone; condensation-preventing chemicals for industrial use; chemicals for petrochemical industry use; mold-release preparations; disincrustants for industrial use; agricultural chemicals, except fungicides, weedkillers, herbicides, insecticides and parasiticides, namely fertilizers for agricultural use; chemical preparations for use in photography; unprocessed epoxy resins; unprocessed synthetic resins for industrial use; unprocessed artificial resins for industrial use; polypropylene; polyvinyl chloride resins; plasticizers; fertilizer; fire extinguishing compositions; quenching oil for industrial use; soldering chemicals; chemical substances for preserving foodstuffs; dressing chemicals for leather; oils for currying leather; adhesives for general industrial use; glue for petrochemical industry use; polyurethane; cellulose slurry; carbon sulphide; dressing and finishing preparations, namely, chemicals for textiles; chemical preparations in the nature of filtering materials for industrial use; fire-preventing preparations, namely, fire retardant compositions for commercial and domestic use; chemical reagents not for medical or veterinary purposes Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; lubricating graphite; petroleum jelly for industrial purposes; light oil; adding fat oil, namely, complex lipid oil; benzine; diesel oil; kerosene; combustible oil for fuel; non-chemical additives to motor-fuel; fuel gas; ceresine, namely, ozocerite; oil-gas, namely, liquefied petroleum gas; coal; industrial wax; paraffin; candles; dust laying compositions [Resin compound board, namely, finish plasters made of colored artificial resin; clinker ballast, namely, for metalling; gypsum; asbestos boards; cement mixes; floor tiles not of metal; refractory materials, namely, sheets; bituminous products for building, namely, bituminous roof coatings; asphalt paving; tarred strips for building namely, tarred felt; petroleum jelly; waterproof roll material, namely, waterproof felt; hydraulic bitumen; building materials not of metal, namely, soffits; buildings not of metal, namely, prefabricated metal buildings; building glass, namely, glass sheets for building] [Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery installation, maintenance and repair; electric appliance installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing of pipes; disinfecting; elevator installation and repai] [Transport by cargo ship; engineering equipment removal services; packaging of goods for transportation; truck hauling; stevedoring; car parking; vehicle rental; storage of petroleum and natural gas; rental of warehouses space; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline, namely, transmission of oil and gas through pipelines] [Engineering; research and development for new products and medicines for others; quality control for others; technical research in the field of petrochemical industry; consultation in environment protection; oil-field surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing; industrial design; architectural consultation; development of construction projects, namely, planning and construction of buildings; computer software design for others; litigation services; weather forecasting; dress designing; intangible asset evaluation, namely, intellectual property evaluation]

Goods & Services

(1) Solidified gases for welding; nitric acid; ethylene; ethyl alcohol; phenol for industrial purposes; hydrazine; formic aldehyde; glyceride; surface-active chemical agents; combusting preparations (chemical additives to motor fuel); gas purifying preparations; water-softening preparations; activated carbons; petrochemicals; chemical reagents (other than for medical or veterinary purposes), namely chemical reagents for scientific research, namely reagents that test for contaminants in food; unprocessed epoxy resins; fertilizer; fire extinguishing compositions; polyurethane; gypsum (2) Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; oil-gas; coal; industrial wax; paraffin; candles; vaseline (3) Refractory materials (4) Resin compound board (building materials); clinker ballast, namely coarse gravel or crushed rock laid to form a bed for roads or railroads; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; waterproof roll material; hydraulic bitumen; building materials not of metal, namely concrete, lumber, plaster, tiles, wood panels; buildings not of metal; building glass. (1) Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery used in oil industry installation, maintenance and repair; electric appliance used in engineering construction installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing of machinery and conveyance; elevator installation and repair; liquefied gas station; development of construction projects (2) Transport of goods by marine, railway and pipeline; packaging of goods; stevedoring; car parking; vehicle rental; storage of oil and natural gas; rental of warehouses; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline (3) Petroleum and petrochemical engineering; energy sources research and development for others; quality control for oil and petrochemical products; technical research for oil and petrochemical industry; consultation in environment protection; oilfield surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing on oil, gas and the refined products therefrom; industrial design; architectural consultation; computer software design; weather forecasting; clothing design (4) Litigation support services

Goods & Services

(1) Solidified gases for welding; nitric acid; ethylene; ethyl alcohol; phenol for industrial purposes; hydrazine; formic aldehyde; glyceride; surface-active chemical agents; combusting preparations (chemical additives to motor fuel); gas purifying preparations; water-softening preparations; activated carbons; petrochemicals; chemical reagents (other than for medical or veterinary purposes), namely chemical reagents for scientific research, namely reagents that test for contaminants in food; unprocessed epoxy resins; fertilizer; fire extinguishing compositions; polyurethane; gypsum (2) Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; oil-gas; coal; industrial wax; paraffin; candles; vaseline (3) Refractory materials (4) Resin compound board (building materials); clinker ballast, namely coarse gravel or crushed rock laid to form a bed for roads or railroads; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; waterproof roll material; hydraulic bitumen; building materials not of metal, namely concrete, lumber, plaster, tiles, wood panels; buildings not of metal; building glass (1) Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery used in oil industry installation, maintenance and repair; electric appliance used in engineering construction installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing of machinery and conveyance; elevator installation and repair; liquefied gas station; development of construction projects (2) Transport of goods by marine, railway and pipeline; packaging of goods; stevedoring; car parking; vehicle rental; storage of oil and natural gas; rental of warehouses; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline (3) Petroleum and petrochemical engineering; energy sources research and development for others; quality control for oil and petrochemical products; technical research for oil and petrochemical industry; consultation in environment protection; oilfield surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing on oil, gas and the refined products therefrom; industrial design; architectural consultation; computer software design; weather forecasting; clothing design. (4) Litigation support services

Goods & Services

(1) Solidified gases for welding; nitric acid; ethylene; ethyl alcohol; phenol for industrial purposes; hydrazine; formic aldehyde; glyceride; surface-active chemical agents; combusting preparations (chemical additives to motor fuel); gas purifying preparations; water-softening preparations; activated carbons; petrochemicals; chemical reagents (other than for medical or veterinary purposes), namely chemical reagents for scientific research, namely reagents that test for contaminants in food; unprocessed epoxy resins; fertilizer; fire extinguishing compositions; polyurethane; gypsum (2) Industrial oil; industrial grease; raw or refined petroleum; petroleum ether; motor oil; mazut; lubricating oil; white oil; solvent oil; light oil; adding fat oil; benzine; diesel oil; kerosene; combustible oil; oil-gas; coal; industrial wax; paraffin; candles; vaseline (3) Refractory materials (4) Resin compound board (building materials); clinker ballast, namely coarse gravel or crushed rock laid to form a bed for roads or railroads; gypsum; asbestos cement; floor tiles not of metal; refractory materials; asphaltum; bituminous products for building; asphalt paving; tarred strips for building; waterproof roll material; hydraulic bitumen; building materials not of metal, namely concrete, lumber, plaster, tiles, wood panels; buildings not of metal; building glass. (1) Building construction supervision; harbour construction; pipeline construction and maintenance; oil depot construction and repair; road paving; drilling of wells; mining extraction; upholstering; boiler cleaning and repair; machinery used in oil industry installation, maintenance and repair; electric appliance used in engineering construction installation and repair; vehicle greasing; vehicle gas station; vehicle service stations; shipbuilding; rustproofing; washing of machinery and conveyance; elevator installation and repair; liquefied gas station; development of construction projects (2) Transport of goods by marine, railway and pipeline; packaging of goods; stevedoring; car parking; vehicle rental; storage of oil and natural gas; rental of warehouses; electricity distribution; distribution of energy; courier services for messages or merchandise; tourist offices except for hotel reservation; transportation by pipeline (3) Petroleum and petrochemical engineering; energy sources research and development for others; quality control for oil and petrochemical products; technical research for oil and petrochemical industry; consultation in environment protection; oilfield surveys; oil-well testing; geological research; geological surveys; analysis for oil-field exploitation; chemical research; biological research; material testing on oil, gas and the refined products therefrom; industrial design; architectural consultation; computer software design; weather forecasting; clothing design (4) Litigation support services

Abstract

The present application relates to a high temperature carbon dioxide corrosion inhibitor comprising the following components by mass percent: amide compound 15~50%, organic alkynol 10~25%, mercaptan acid 5~15%, piperidine 5~25%, mercaptopyridine 5~15%, and solvent 25~60%. The corrosion inhibitor has excellent corrosion inhibition for CO2 corrosion of oil field water system at a high temperature (150-250.degree.C).

IPC Classes  ?

• C09K 8/54 - Compositions for in situ inhibition of corrosion in boreholes or wells
• C23F 11/10 - Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors

Abstract

A pushing and jam-releasing pup joint of a formation tester comprises a first jam-releasing arm (1), a first three-way reversing valve (V1), a two-way reversing valve (V2) and a third three-way reversing valve (V4), a withdrawal cavity (Q11) of the first jam-releasing arm (1) is connected with the first three-way reversing valve (V1) which can communicate with an energy accumulation cavity of an energy accumulator and the two-way reversing valve (V2), the two-way reversing valve (V2) can be communicated with a pressure oil main line (G2) of a hydraulic system, and an extension cavity (Q12) of the first jam-releasing arm (1) is connected with the third three-way reversing valve (V4) which can communicate with the pressure oil main line (G2) and a return oil main line (G1) of hydraulic system. Jam-releasing pup joint effectively solves the problem of jam release when mud adheres to EFDT and makes same jammed.

IPC Classes  ?

• E21B 49/00 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells

Abstract

Disclosed is a tubular column for drill-free and catch-free integrated well cementing and well completion, the tubular column comprising a casing tubular column, and a setting tool string tubular column mounted in the casing tubular column and having a lower section thereof closed. The casing tubular column comprises an on/off-type cementing device (6), an external packer (8) and an inner seal short joint (9) connected in sequence from top to bottom, wherein the external packer is provided with a pressure transmitting hole. The setting tool string tubular column comprises an outer seal short joint (5), a bumping base (7) and an inner sealing device (11) connected in sequence from top to bottom, wherein the outer seal short joint is provided with an overflowing hole (17), the overflowing hole is located between the on/off-type cementing device and the inner seal short joint, the on/off-type cementing device and the outer seal short joint are sealed relative to each other, the inner seal short joint and the inner sealing device are sealed relative to each other, and an anchoring mechanism for releasing a grip is provided between the on/off-type cementing device and the outer seal short joint. Moreover, a method of drill-free and catch-free integrated well cementing and well completion is disclosed.

IPC Classes  ?

• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• E21B 33/12 - PackersPlugs

Abstract

Disclosed in the present invention is an electrohydraulic central control system applied to an unmanned platform, comprising: a wellhead control panel electric control box which is connected to a central control unit by means of a cable, the wellhead control panel electric control box being provided with a wellhead control panel electric control knob; a wellhead control panel which is electrically connected to the wellhead control panel electric control box, the wellhead control panel electric control box being internally provided with a wellhead control panel hydraulic unit and a wellhead control panel electric control unit; and a disc brake hydraulic station unit, a drilling machine hydraulic station unit, a machine tool hydraulic station unit, and a workover rig unit which are internally provided with hydraulic control valves respectively coupled to the wellhead control panel. The beneficial effect of the present invention is that: the wellhead control panel is separately coupled to the hydraulic control valves inside the disc brake hydraulic station unit, the drilling machine hydraulic station unit, the machine tool hydraulic station unit, and the workover rig unit, so as to achieve electrohydraulic control of hydraulic devices of an unmanned platform in a unified manner.

IPC Classes  ?

• E21B 34/02 - Valve arrangements for boreholes or wells in well heads

Abstract

The present invention relates to an oil recovery process with composition- adjustable multi-component thermal fluid, the process comprises: adding oxygen produced by air together with fuel and water into a reactor, in which the oxygen and the fuel combust to produce flue gas and heat, the heat heats water to generate hot water/steam, and then the flue gas and the hot water/steam are mixed to form multi-component thermal fluid, wherein the purity of oxygen added into the reactor is controlled so as to produce the multi-component thermal fluid with various mass ratios of flue gas to hot water/steam; then the obtained multi- component thermal fluid with various mass ratios of flue gas to hot water/steam are injected into various types of oil reservoirs for oil recovery. The oil recovery process of the present invention is applicable for various types of crude oil reservoirs.

IPC Classes  ?

• C09K 8/592 - Compositions used in combination with generated heat, e.g. by steam injection
• E21B 43/24 - Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection