Systems and methods are provided for reducing noise in nuclear magnetic resonance (NMR) data by filtering the NMR data based on the noise harmonic of the NMR data. The NMR data is generated using an NMR device in a well bore hole to perform a pulse sequence (e.g., an inversion recovery pulse sequence followed by a Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence). When significant noise is observed, a Fast-Fourier Transform (FFT) transforms the echo data to identify a fundamental frequency (and harmonics) of the noise, and the window width of a moving filter is based on the fundamental frequency. The moving filter is used to determine a threshold, and the amplitudes of frequency coefficients within the window that exceed the threshold are reduced to generate the filtered data, which is transformed (e.g., via IFFT) back to the time domain to provide improved echo data for further NMR analysis.
G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
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
A refrigerant accumulator operable to receive a refrigerant. The refrigerant accumulator may include a plurality of elongated pipes. The plurality of pipes may include a first portion of the plurality of pipes disposed on a first plane and a second portion of the plurality of pipes disposed on a second plane.
F25B 9/00 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
3.
REMOVAL OF HAZARDOUS CHEMICALS DURING DRILLING IN HYDROCARBON FORMATIONS
The invention relates to a drilling fluid having adsorbent particles added to it and also to a method of drilling a well into a subterranean hydrocarbon reservoir. The adsorbent particles adsorb benzene and toluene that has been taken up in the drilling fluid from the hydrocarbon reservoir. This mitigates the problem of benzene vapor being released at the surface, especially at the shaker. The adsorbent particles can be of a size that allows them to be separated from rock cuttings in the shaker and recirculated into the drilling fluid. When the drilling job is complete, the adsorbent particles may be disposed of safely.
B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
4.
REMOVAL OF HAZARDOUS CHEMICALS DURING DRILLING IN HYDROCARBON FORMATIONS
The invention relates to a drilling fluid having adsorbent particles added to it and also to a method of drilling a well into a subterranean hydrocarbon reservoir. The adsorbent particles adsorb benzene and toluene that has been taken up in the drilling fluid from the hydrocarbon reservoir. This mitigates the problem of benzene vapor being released at the surface, especially at the shaker. The adsorbent particles can be of a size that allows them to be separated from rock cuttings in the shaker and recirculated into the drilling fluid. When the drilling job is complete, the adsorbent particles may be disposed of safely.
C09K 8/03 - Specific additives for general use in well-drilling compositions
C09K 8/52 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
5.
SYSTEMS AND METHODS FOR DENOISING NUCLEAR MAGNETIC RESONANCE (NMR) MEASUREMENT
Systems and methods are provided for reducing noise in nuclear magnetic resonance (NMR) data by filtering the NMR data based on the noise harmonic of the NMR data. The NMR data is generated using an NMR device in a well bore hole to perform a pulse sequence (e.g., an inversion recovery pulse sequence followed by a Carr-Purcell-Meiboom-Gill (CPMG) pulse sequence). When significant noise is observed, a Fast-Fourier Transform (FFT) transforms the echo data to identify a fundamental frequency (and harmonics) of the noise, and the window width of a moving filter is based on the fundamental frequency. The moving filter is used to determine a threshold, and the amplitudes of frequency coefficients within the window that exceed the threshold are reduced to generate the filtered data, which is transformed (e.g., via IFFT) back to the time domain to provide improved echo data for further NMR analysis.
G01R 33/50 - NMR imaging systems based on the determination of relaxation times
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
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
G01N 24/08 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
G01V 5/04 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging
A refrigerant accumulator operable to receive a refrigerant. The refrigerant accumulator may include a plurality of elongated pipes. The plurality of pipes may include a first portion of the plurality of pipes disposed on a first plane and a second portion of the plurality of pipes disposed on a second plane.
F25B 43/00 - Arrangements for separating or purifying gases or liquidsArrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
The disclosure presents an integrated system consisting of a wastewater production unit, e-methane reactor, an electrolyzer for producing hydrogen, a cryogenic separation unit and an ammonia production unit, where e-methane is produced by reaction of carbon dioxide obtained from direct air capture/biogenic CO2/captured industrial CO2 emissions/oxidized solid carbon, and from CO2 separated from biogas obtained from wastewater treatment, and hydrogen gas from electrolysis of water. The hydrogen gas is also reacted with nitrogen obtained from the cryogenic unit for the synthesis of ammonia, where heat from ammonia synthesis is transferred to e-methane reactor for energy efficiency. By integrating these units and reactors, the disclosure provides a system for efficient use of energy and by-products.
The disclosure presents an integrated system consisting of a wastewater production unit, e- methane reactor, an electrolyzer for producing hydrogen, a cryogenic separation unit and an ammonia production unit, where e-methane is produced by reaction of carbon dioxide obtained from direct air capture/biogenic CCh/captured industrial CO2 emissions/oxidized solid carbon, and from CO2 separated from biogas obtained from wastewater treatment, and hydrogen gas from electrolysis of water. The hydrogen gas is also reacted with nitrogen obtained from the cryogenic unit for the synthesis of ammonia, where heat from ammonia synthesis is transferred to e-methane reactor for energy efficiency. By integrating these units and reactors, the disclosure provides a system for efficient use of energy and by-products.
C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen
Methods and tools for deploying cables, such as fiber optic cable, downhole in well using adhesive to adhere the cable to an inside surface of a casing.
E21B 19/22 - Handling reeled pipe or rod units, e.g. flexible drilling pipes
E21B 47/12 - 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
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
Methods and tools for deploying cables, such as fiber optic cable, downhole in well using adhesive to adhere the cable to an inside surface of a casing.
A method of extracting heat from hydrocarbon production or injection wells involves passing heat exchanger tubing down an active production or injection well and securing it. Heat from the formation or from fluids in the production tubing or annulus is extracted and returned to the surface to be used in various ways on a platform, e.g. heating accommodation or water supplies. The heat exchanger tubing may be delivered on coil tubing into the production tubing and anchored above the DHS V, in a retro-fit operation. Alternatively, it may be installed in a sidetrack well via a dedicated kickoff. If installed at the completion of the well, the heat exchanger tubing may be located in the annulus, mounted on the outside of the production tubing; in this event the heat exchanger tubing may extend further into the well to, or even beyond, the production packer.
F24T 10/17 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes closed at one end, i.e. return-type tubes
F03G 7/04 - Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
F25B 30/06 - Heat pumps characterised by the source of low potential heat
12.
EXTRACTION OF HEAT ENERGY FROM ACTIVE HYDROCARBON WELLS
A method of extracting heat from hydrocarbon production or injection wells involves passing heat exchanger tubing (6) down an active production or injection well and securing it. Heat from the formation or from fluids in the production tubing or annulus is extracted and returned to the surface to be used in various ways on a platform, e.g. heating accommodation or water supplies. The heat exchanger tubing (6) may be delivered on coil tubing (13) into the production tubing (8) and anchored above the DHSV, in a retro-fit operation. Alternatively it may be installed in a sidetrack well (126) via a dedicated kick-off (124, 125). If installed at the completion of the well, the heat exchanger tubing (206) may be located in the annulus, mounted on the outside of the production tubing (208); in this event, the heat exchanger tubing may extend further into the well (beyond the DHSV) to, or even beyond, the production packer (231).
F24T 10/15 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubesGeothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using tubes assembled with connectors or with return headers
E21B 41/00 - Equipment or details not covered by groups
Systems, methods and devices are disclosed for optimizing a completion stage perforation configuration. Some examples includes a wellbore in a subterranean feature having one or more perforations. One or more imaging devices are operable to collect erosion image data of the one or more perforations. Moreover, one or more non-transitory storage devices store instructions which, when executed by one or more processors, cause the system to perform various operations. These operations can include determining a proppant distribution prediction based on the erosion image data. The system can use a correction equation of an erosion model to calculate a corrected uniformity index value for the proppant distribution prediction. An amount of proppant per cluster is determined in some scenarios, based on the corrected uniformity index value, to optimize a completion perforation configuration for the wellbore.
Systems, methods and devices are disclosed for optimizing a completion stage perforation configuration. Some examples includes a wellbore in a subterranean feature having one or more perforations. One or more imaging devices are operable to collect erosion image data of the one or more perforations. Moreover, one or more non-transitory storage devices store instructions which, when executed by one or more processors, cause the system to perform various operations. These operations can include determining a proppant distribution prediction based on the erosion image data. The system can use a correction equation of an erosion model to calculate a corrected uniformity index value for the proppant distribution prediction. An amount of proppant per cluster is determined in some scenarios, based on the corrected uniformity index value, to optimize a completion perforation configuration for the wellbore.
Aspects of the present disclosure relate generally to systems, methods, and devices for cooling a gas-powered turbine. The system includes a plurality of gas-powered turbine components, such as a combustion chamber having an interior portion. An internal cooling circuit with a heat shield is disposed at least partly in the interior portion of the combustion chamber. The heat shield is positioned axially and/or along a lengthwise axis of the combustion chamber, while omitting radial portions extending outward towards an outer surface of the gas-powered turbine. Additionally, the heat shield is positioned upstream from and/or outside of a hot gas path formed downstream of the combustion chamber away from moving/rotating components. The heat shield is an additive manufacturing heat shield formed of an additive manufacturing process (e.g., 3D printing).
Aspects of the present disclosure relate generally to systems, methods, and devices for cooling a gas-powered turbine. The system includes a plurality of gas-powered turbine components, such as a combustion chamber having an interior portion. An internal cooling circuit with a heat shield is disposed at least partly in the interior portion of the combustion chamber. The heat shield is positioned axially and/or along a lengthwise axis of the combustion chamber, while omitting radial portions extending outward towards an outer surface of the gas-powered turbine. Additionally, the heat shield is positioned upstream from and/or outside of a hot gas path formed downstream of the combustion chamber away from moving/rotating components. The heat shield is an additive manufacturing heat shield formed of an additive manufacturing process (e.g., 3D printing).
The invention relates to gathering data about a hydrocarbon well by dropping a ball or dart (1) through the well (21) that emits an acoustic signature and/or senses information about the wellbore, such as deformation or bending. The dart signature and/or sensed data is communicated to the surface via a DAS cable (25) running down the tubing (20). The dart (1) may be made in two detachable modules, the first module (4) containing an acoustic emitter and the second module (6) having a certain drift diameter and being one of a set of interchangeable modules of different drift diameter that may be selected and assembled to the first module (4). The second module or both modules may be dissolvable. The dart (51) may store data as it descends through the tubing (60) and then dock with a docking station (65) that is connected with a TEC line (66) running up the outside of the tubing (60) and download the data via the TEC line (66) up to the surface.
E21B 47/08 - Measuring diameters or related dimensions at the borehole
E21B 47/09 - Locating or determining the position of objects in boreholes or wellsIdentifying the free or blocked portions of pipes
E21B 47/117 - Detecting leaks, e.g. from tubing, by pressure testing
E21B 47/12 - 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
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
E21B 47/013 - Devices specially adapted for supporting measuring instruments on drill bits
A tool carrier has been designed to lower tools into the borehole that will be "heavier" than the displaced wellbore fluid on the drop configuration, but "lighter" than the wellbore fluid on the retrieve configuration. Thus, conveyance down the hole by gravity is how the carrier conveys tools into the hole. The tool may thus be conveyed without wireline and during periods of shut-in. Then at some event (i.e. pressure, temperature, time, depth, etc.), the carrier transforms to the retrieve configuration by ejecting enough mass that the carrier and any attached tools become "net lighter" than the displaced wellbore fluid, and so begin to float to surface. Once the surface is reached the tool carrier and tool may be retrieved.
The invention relates to gathering data about a hydrocarbon well by dropping a ball or dart (1) through the well (21) that emits an acoustic signature and/or senses information about the wellbore, such as deformation or bending. The dart signature and/or sensed data is communicated to the surface via a DAS cable (25) running down the tubing (20). The dart (1) may be made in two detachable modules, the first module (4) containing an acoustic emitter and the second module (6) having a certain drift diameter and being one of a set of interchangeable modules of different drift diameter that may be selected and assembled to the first module (4). The second module or both modules may be dissolvable. The dart (51) may store data as it descends through the tubing (60) and then dock with a docking station (65) that is connected with a TEC line (66) running up the outside of the tubing (60) and download the data via the TEC line (66) up to the surface.
A tool carrier has been designed to lower tools into the borehole that will be “heavier” than the displaced wellbore fluid on the drop configuration, but “lighter” than the wellbore fluid on the retrieve configuration. Thus, conveyance down the hole by gravity is how the carrier conveys tools into the hole. The tool may thus be conveyed without wireline and during periods of shut-in. Then at some event (i.e. pressure, temperature, time, depth, etc.), the carrier transforms to the retrieve configuration by ejecting enough mass that the carrier and any attached tools become “net lighter” than the displaced wellbore fluid, and so begin to float to surface. Once the surface is reached the tool carrier and tool may be retrieved.
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
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
C09K 8/54 - Compositions for in situ inhibition of corrosion in boreholes or wells
E21B 43/34 - Arrangements for separating materials produced by the well
22.
SYSTEMS, METHODS, AND APPARATUSES FOR SMART FIELD DEVELOPMENT USING ARTIFICIAL INTELLIGENCE
Implementations claimed and described herein provide systems and methods for optimizing well completion modeling. The systems and methods use an Al-driven modeling system with a plurality of different machine-learning components.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
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
G01V 1/28 - Processing seismic data, e.g. for interpretation or for event detection
E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Systems and method for predicting production decline for a target well include receiving a first data set representing a target well; generating a static model of the target well based on the first data set; receiving a second data set representing one or more neighboring wells; generating a dynamic model of the target well based on the static model and based on a time-dependent depletion function, wherein the time-dependent depletion function is based on distances between the target well and the one or more neighboring wells, and the time-dependent depletion function based on the second data set and predictions of cumulative production of the one or more neighboring wells; and generating, based on the dynamic model, one or more time series values of a production profile of the target well.
Implementations claimed and described herein provide systems and methods for optimizing well completion modeling. The systems and methods use an AI-driven modeling system with a plurality of different machine-learning components.
G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
25.
SYSTEMS AND METHODS OF PREDICTIVE DECLINE MODELING BASED ON TIME-DEPENDENT DEPLETION FUNCTION
Systems and method for predicting production decline for a target well include receiving a first data set representing a target well; generating a static model of the target well based on the first data set; receiving a second data set representing one or more neighboring wells; generating a dynamic model of the target well based on the static model and based on a time-dependent depletion function, wherein the time-dependent depletion function is based on distances between the target well and the one or more neighboring wells, and the time-dependent depletion function based on the second data set and predictions of cumulative production of the one or more neighboring wells; and generating, based on the dynamic model, one or more time series values of a production profile of the target well.
The disclosure provides a system for removal of hydrogen sulfide from oil and gas by the reaction of H2S with hydrocarbons in the presence of a UV light source to produce easy to remove organosulfur compounds.
Infill-to-parent well frac hits or fracture driven interactions occur when infill well fractures intersect with parent well depleted fractures or parent wellbores themselves. As a result, both the parent and infill well production can be negatively impacted. Understanding and mitigating frac hits is crucial for unconventional assets since they can impact many aspects of field development. Frac hits can cause parent well production loss, making it an important consideration when it comes to well spacing-stacking, completion design, and drilling schedules optimization decisions. In cases where parent wells have been knocked offline by frac hits, well interventions are often necessary to restore production. Refracturing of parent wells has been proven to protect them from offset infill frac hits, and also presents a secondary field development opportunity.
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 43/26 - Methods for stimulating production by forming crevices or fractures
Implementations described and claimed herein provide systems and methods for assessment of reservoir depletion based on mud gas geochemistry while a well is being drilled and to assist in optimizing development and production strategies with faster turnaround and lower cost. Contrary to drilling one or more test wells to determine the depletion of the reservoir, mud gas geochemistry data is readily available, real-time, and low cost. In some particular implementations, a total hydrocarbon gas intensity and/or detailed hydrocarbon gas compositions may be analyzed and function together as a reliable indicator of reservoir pressure and in-place petroleum fluids quality. The mud gas geochemistry data may be interpreted in the context of in-place petroleum fluids properties (e.g., maturity, bulk and isotope compositions, and PVT phase behaviors), with the aids of mud logging and production data from nearby wells if available, to evaluate reservoir depletion.
A perf wash cement (“P/W/C”) abandonment job is conducted in an offshore oil or gas well annulus (2), in particular the washing or cementing operation using a rotating head (6, 8) with nozzles (7, 9) dispensing wash fluid or cement at pressure. Certain values of parameters of a washing or cementing job have been found surprisingly to affect the quality of the job, or the degree to which they affect the quality of the job has been unexpected. These include rotation rate of the tool, the direction of translational movement of the tool, and the volume flow rate and pressure per nozzle of cement or wash fluid (and hence nozzle size).
Implementations described and claimed herein provide systems and methods for assessment of reservoir depletion based on mud gas geochemistry while a well is being drilled and to assist in optimizing development and production strategies with faster turnaround and lower cost. Contrary to drilling one or more test wells to determine the depletion of the reservoir, mud gas geochemistry data is readily available, real-time, and low cost. In some particular implementations, a total hydrocarbon gas intensity and/or detailed hydrocarbon gas compositions may be analyzed and function together as a reliable indicator of reservoir pressure and in-place petroleum fluids quality. The mud gas geochemistry data may be interpreted in the context of in-place petroleum fluids properties (e.g., maturity, bulk and isotope compositions, and PVT phase behaviors), with the aids of mud logging and production data from nearby wells if available, to evaluate reservoir depletion.
Water hammer is oscillatory pressure behavior in a wellbore resulting from the inertial effect of flowing fluid being subjected to an abrupt change in velocity. It is commonly observed at the end of large-scale hydraulic fracturing treatments after fluid injection is rapidly terminated. Factors affecting treatment-related water hammer behavior are disclosed and field studies are introduced correlating water hammer characteristics to fracture intensity and well productivity.
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 43/26 - Methods for stimulating production by forming crevices or fractures
The invention relates to increasing the rate of evaporation in an evaporation pond containing contaminated produced or process water from a hydrocarbon production operation. Water from just beneath the surface of the pond is pumped through a pipe extending around the periphery of the pond. The water is dispensed around the periphery of the pond from ports in the pipe and then trickles down into the pond water. The pond has a black plastic lining, with a border region that is not submerged. The water from the pipe trickles down across the un-submerged black lining that is at an elevated temperature due to radiative solar heating, and energy is thereby imparted to the water to increase the rate of evaporation.
A process for removing an obstruction (13) caused by gas hydrates or water ice from the tubing (12) of a hydrocarbon production or injection well or a riser using a microwave. The process comprises passing a microwave generating and emitting tool (5) on wireline (8) down the tubing (12) and supplying electrical power to the tool via the wireline (8) or from a battery to produce microwave energy and direct it to the gas hydrate and/or water ice deposit (13), thereby melting deposit and unblocking the well.
The invention relates to a process for removing an obstruction (13) caused by gas hydrates or water ice from the tubing (12) of a hydrocarbon production or injection well or a riser. The process comprises passing a microwave generating and emitting tool (5) on wireline (8) down the tubing (12) and supplying electrical power to the tool via the wireline (8) or from a battery to produce microwave energy and direct it to the gas hydrate and/or water ice deposit (13), thereby melting deposit and unblocking the well.
F16L 53/34 - Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. induction, dielectric or microwave heating
B01J 19/12 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor employing electromagnetic waves
B08B 7/00 - Cleaning by methods not provided for in a single other subclass or a single group in this subclass
B08B 9/027 - Cleaning the internal surfacesRemoval of blockages
C10L 3/10 - Working-up natural gas or synthetic natural gas
E21B 31/00 - Fishing for or freeing objects in boreholes or wells
The rate of evaporation in an evaporation pond containing contaminated produced or process water from a hydrocarbon production operation is increased by pumping water from just beneath the surface of the pond through a pipe extending around the periphery of the pond. The water is dispensed around the periphery of the pond from ports in the pipe and then trickles down into the pond water. The pond has a black plastic lining, with a border region that is not submerged. The water from the pipe trickles down across the un-submerged black lining that is at an elevated temperature due to radiative solar heating, and energy is thereby imparted to the water to increase the rate of evaporation.
Perf-Wash-Cement (“P/W/C”) abandonment are conducted in an offshore oil or gas well annulus, in particular the washing or cementing operation uses a rotating head with nozzles dispensing wash fluid or cement at pressure. A new design of bottom hole assembly is proposed in which the cementing tool has a relatively large diameter in order to optimize pressure whilst the wash tool has a relatively small diameter. The wash process, for a number of reasons, appears to be less sensitive to tool diameter and making the wash tool smaller reduces the overall risk of stuck pipe.
A method for producing heavy oil, the method including producing oil by SAGD or a SAGD variant in an array of wellpairs until an SOR increases, then shutting in every other injector and injecting steam plus noncondensable gas (NCG) in the remaining injectors and producing oil from all producers. The method reduced steam usage by at least 40% or even at least 50% in the later stages of the well, without comprising oil production.
A cementing tool (1) and method for setting a cement plug where Instead of the conventional “balanced plug”, the technique involves pumping cement whilst pulling and rotating the tool. The cementing tool (1) includes nozzles (9) for jetting cement which are located in a relatively narrow region (8) of the tool and a larger diameter choke region (5) proximal of the nozzles (9). The end of the tool (11) is closed off and tapered. The tool is passed down the well to a location where it is desired to set a plug, then cement is injected whilst rotating and withdrawing the tool. The jets of cement help displace existing fluid in the well thereby reducing mixing of the existing fluid with the cement, The choke region (5) increases the flow energy, whilst the tapered end (11) helps prevent disruption to the cement as the tool is withdrawn. The choke region (5) may be expandable to allow the tool to pass through a cased part of the well and then set a plug in an under-reamed open hole part of the well.
Proppant flowback during post-stimulation well clean up and production is a common occurrence in most hydraulically fractured wells. The production of the proppant from a propped fracture is related to the forces acting on the proppant pack during the well that is actively producing fluids. Flow rate and pressure data collected during the post-treatment flowback activity is used in simulating bottomhole (BH) production rates using a Gaussian solution scheme. The BH rate is distributed amongst the various perforation clusters while incorporating the effects of key hydraulic fracture characteristics in the presence of simulated effective bottomhole flowing pressures across different fluid entry points into the wellbore. The solution is updated at each time step during the simulation. The production allocation is then used in calculating effective flow velocities that are then compared with critical velocities to predict proppant flowback. Steps to mitigate or reduce the flowback are implemented.
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 47/10 - Locating fluid leaks, intrusions or movements
E21B 43/267 - Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
Proppant flowback during post-stimulation well clean up and production is a common occurrence in most hydraulically fractured wells. The production of the proppant from a propped fracture is related to the forces acting on the proppant pack during the well that is actively producing fluids. Flow rate and pressure data collected during the post-treatment flowback activity is used in simulating bottomhole (BH) production rates using a Gaussian solution scheme. The BH rate is distributed amongst the various perforation clusters while incorporating the effects of key hydraulic fracture characteristics in the presence of simulated effective bottomhole flowing pressures across different fluid entry points into the wellbore. The solution is updated at each time step during the simulation. The production allocation is then used in calculating effective flow velocities that are then compared with critical velocities to predict proppant flowback. Steps to mitigate or reduce the flowback are implemented.
Example embodiments of the present disclosure provide a new process (tool) to predict the production effects from MBEs. This tool can be based on an extensive study which risked the likelihood of MBE occurrence for patterns grouped by sand and completion type. In one aspect, a method includes determining a risk of Matrix Bypass Event (MBE) occurrence for a given sand type; assigning an MBE status to the given sand type based on the risk of MBE occurrence; and predicting an effect of the MBE status for the given sand type on production in a target production well.
Example embodiments of the present disclosure provide a new process (tool) to predict the production effects from MBEs. This tool can be based on an extensive study which risked the likelihood of MBE occurrence for patterns grouped by sand and completion type. In one aspect, a method includes determining a risk of Matrix Bypass Event (MBE) occurrence for a given sand type; assigning an MBE status to the given sand type based on the risk of MBE occurrence; and predicting an effect of the MBE status for the given sand type on production in a target production well.
G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
E21B 47/10 - Locating fluid leaks, intrusions or movements
E21B 47/26 - Storing data down-hole, e.g. in a memory or on a record carrier
A method for producing heavy oil using solvent injection without gas interference at the electric submersible pump (ESP), the method including completing the injection well with two or more injector tubings, at a heel and toe, and optionally therebetween. Ideally, when gas locking of the ESP is detected, the operator switches to toe dominant injections, mitigating the gas locking problem, and producing oil at a faster rate than possible with evenly distributed injections.
E21B 43/24 - Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
E21B 43/30 - Specific pattern of wells, e.g. optimising the spacing of wells
E21B 47/12 - 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
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
A method for producing heavy oil using solvent injection without gas interference at the electric submersible pump (ESP), the method including completing the injection well with two or more injector tubings, at a heel and toe, and optionally therebetween. Ideally, when gas locking of the ESP is detected, the operator switches to toe dominant injections, mitigating the gas locking problem, and producing oil at a faster rate than possible with evenly distributed injections.
The invention relates to the treatment of wastewater on an offshore hydrocarbon producing rig where the wastewater is from a variety of sources and has variable content but always includes both oil and particulates. A cross flow membrane filter removes oil whilst dead end type pre-filters are provided to remove particulates which would otherwise quickly erode the membrane filter.
C02F 9/00 - Multistage treatment of water, waste water or sewage
C02F 1/40 - Devices for separating or removing fatty or oily substances or similar floating material
B01D 29/00 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor
The invention relates to the treatment of wastewater on an offshore hydrocarbon producing rig, where the wastewater is from a variety of sources and has variable content but always includes both oil and particulates. A cross flow membrane filter removes oil whilst dead end type pre-filters are provided to remove particulates which would otherwise quickly erode the membrane filter.
A method for obtaining a natural gas liquid (NGL) product from a liquefied natural gas (LNG) liquefaction facility including receiving a gas feed stream at an LNG facility having an NGL recovery unit integrated therein, separating the gas feed stream via a demethanizer of the NGL recovery unit to a vapor stream from the overhead and a liquid stream from the bottoms, transferring the vapor from the NGL recovery unit to an LNG liquefaction unit and transferring the liquid to a deethanizer within the NGL recovery unit for further cooling, and obtaining an ethane product and an NGL product from the cooled liquid.
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
C07C 7/04 - Purification, separation or stabilisation of hydrocarbonsUse of additives by distillation
C10G 5/06 - Recovery of liquid hydrocarbon mixtures from gases, e.g. natural gas by cooling or compressing
49.
INTEGRATED LIQUID RECOVERY PROCESS IN LNG PROCESSES
A method for obtaining a natural gas liquid (NGL) product from a liquefied natural gas (LNG) liquefaction facility including receiving a gas feed stream at an LNG facility having an NGL recovery unit integrated therein, cooling the gas feed stream via a demethanizer of the NGL recovery unit to separate a vapor from a liquid, transferring the vapor from the NGL recovery unit to an LNG liquefaction unit and transferring the liquid to a deethanizer within the NGL recovery unit for further cooling, and obtaining an ethane product and an NGL product from the cooled liquid.
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
The present disclosure generally relates to harvesting geothermal energy from mature and near end-of-life oil and gas reservoirs that have been subjected to secondary oil recovery steam processes like steam-assisted gravity drainage (SAGD), steamflood, etc. The geothermal potential of these mature SAGD reservoirs can be used to generate green electricity thus reducing the greenhouse gas (GHG) footprint of the oil production. Lateral spacing of injectors and producers, with closing of unused members of a well-pair for energy recovery is described.
A process is described for milling a window in the casing (2) of an oil or gas producing well, for example in order to drill a lateral well branching off from the main well. A wireline milling tool is first used, in a relatively low cost operation, to create a small window (14) or notch in the casing (2). Provided a small window (14) or notch can be created successfully, an expensive heavy duty coil tubing milling operation can then be conducted to create the full window, some 4-6 feet in length. Previous attempts to create a full window using wireline tools have encountered difficulties due to there being no circulating drilling fluid to remove metal swarf and due to the need for the tool to be supported by casing during the milling operation, when the integrity of the casing is being compromised by drilling the window. The proposed wireline tool has an actuator (4) with relatively small stroke length and a relatively small container (8) to manage the swarf produced by the milling process.
E21B 29/12 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground specially adapted for underwater installations
Infill-to-parent well frac hits or fracture driven interactions occur when infill well fractures intersect with parent well depleted fractures or parent wellbores themselves. As a result, both the parent and infill well production can be negatively impacted. Understanding and mitigating frac hits is crucial for unconventional assets since they can impact many aspects of field development. Frac hits can cause parent well production loss, making it an important consideration when it comes to well spacing-stacking, completion design, and drilling schedules optimization decisions. In cases where parent wells have been knocked offline by frac hits, well interventions are often necessary to restore production. Refracturing of parent wells has been proven to protect them from offset infill frac hits, and also presents a secondary field development opportunity.
E21B 41/00 - Equipment or details not covered by groups
G06Q 10/04 - Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
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
Disclosed herein are systems and processes for removing heavies during the liquefaction of a natural gas. The processes include dissolving the heavies in the natural gas by adding external natural gas liquid (NGL), followed by a staged removal of the natural gas liquid (NGL) and dissolved heavies.
F25J 1/00 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
F25J 3/08 - Separating gaseous impurities from gases or gaseous mixtures
A kinetic modeling method to describe/model the petroleum fluid evolution with respect to its bulk compositions and the isotope compositions. The bulk compositions are detailed to individual n-alkanes, while the isotope compositions are detailed to individual isotopomer within in each isotopologue of a given n-alkane. This provides a systematic solution to assess fluid maturity and to elucidate the charge history of a reservoir, based on the distribution of n-alkanes and detailed isotope composition of each n-alkanes.
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
B01F 25/31 - Injector mixers in conduits or tubes through which the main component flows
C10L 3/10 - Working-up natural gas or synthetic natural gas
F15D 1/02 - Influencing the flow of fluids in pipes or conduits
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
B01F 23/213 - Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
The disclosure provides novel method for removal of H2S from natural gas or other fluid in an oil and gas production facility by the use of a loop line method whereby the fluid passes through a looped pipeline containing H2S scavenger thereby increasing the contact time of the H2S scavenger with the gas and thus increasing the efficiency of the removal of H2S from the gas. The loop line can be added to a facility with an existing H2S scavenger direct injection line and can also be a standalone H2S scavenger method.
C10L 3/10 - Working-up natural gas or synthetic natural gas
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
A kinetic modeling method to describe/model the petroleum fluid evolution with respect to its bulk compositions and the isotope compositions. The bulk compositions are detailed to individual n-alkanes, while the isotope compositions are detailed to individual isotopomer within in each isotopologue of a given n-alkane. This provides a systematic solution to assess fluid maturity and to elucidate the charge history of a reservoir, based on the distribution of n-alkanes and detailed isotope composition of each n-alkanes.
This disclosure describes a device and method of sealing perforations on a well casing inside a subterranean well. The device comprises a generally cylindrical sleeve having an open top and a closed bottom; a heater located inside the sleeve, the heater comprising a thermite mixture; an ignition mechanism that ignites the thermite mixture upon actuation; and a string connected to the heater ignition and detachably engages the sleeve. The method comprises lowering a body of meltable plugging material into the well casing near the perforations; lowering the plugging device into the well casing immediately on top of the body of meltable plugging material; melting the meltable plugging material by igniting the thermite thereby transferring heat to the body of meltable plugging material; forcing the molten plugging material into the perforations by pushing the plugging tool further downhole; cooling the plugging tool and the plugging material until the plugging material solidifies; disengaging the tubing string from the sleeve and retrieving the tubing string with the heater; and removing the sleeve and bismuth remaining in the well casing, but not in the perforations.
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 29/10 - Reconditioning of well casings, e.g. straightening
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
H01L 25/00 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices
H01L 25/065 - Assemblies consisting of a plurality of individual semiconductor or other solid-state devices all the devices being of a type provided for in a single subclass of subclasses , , , , or , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group
H10B 41/27 - Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by three-dimensional arrangements, e.g. with cells on different height levels with source and drain on different levels, e.g. with sloping channels the channels comprising vertical portions, e.g. U-shaped channels
H10B 43/10 - EEPROM devices comprising charge-trapping gate insulators characterised by the top-view layout
H10B 43/27 - EEPROM devices comprising charge-trapping gate insulators characterised by three-dimensional arrangements, e.g. with cells on different height levels with source and drain on different levels, e.g. with sloping channels the channels comprising vertical portions, e.g. U-shaped channels
H10B 43/35 - EEPROM devices comprising charge-trapping gate insulators characterised by the memory core region with cell select transistors, e.g. NAND
H10B 43/40 - EEPROM devices comprising charge-trapping gate insulators characterised by the peripheral circuit region
H01L 23/00 - Details of semiconductor or other solid state devices
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Technology consultation and research; engineering; product development consultation; industrial design; preparation of engineering drawings, technical documentation and reports; all of these services being in the field of liquefied natural gas processing; licensing of technology and intellectual property in the field of liquefied natural gas processing
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Technology consultation and research; engineering; product development consultation; industrial design; preparation of engineering drawings, technical documentation and reports; all of these services being in the field of liquefied natural gas processing; licensing of technology and intellectual property in the field of liquefied natural gas processing
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Technology consultation and research in the field of liquefied natural gas processing; Engineering in the field of liquefied natural gas processing; product development consultation in the field of liquefied natural gas processing; industrial design in the field of liquefied natural gas processing; engineering drawings services and preparing related reports and technical documentation in the field of liquefied natural gas processing Licensing of technology and intellectual property in the field of liquefied natural gas processing being services
Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a solvent is injected into a feed of natural gas at a solvent injection point. A mixed feed is produced from a dispersal of the solvent into the feed of natural gas. The mixed feed contains heavy components. A chilled feed is produced by chilling the mixed feed. The chilled feed includes a vapor and a condensed liquid. The condensed liquid contains a fouling portion of the heavy components condensed by the solvent during chilling. The liquid containing the fouling portion of the heavy components is separated from the vapor. The vapor is directed into a feed chiller heat exchanger following separation of the liquid containing the fouling portion of the heavy components from the vapor, such that the vapor being directed into feed chiller heat exchanger is free of freezing components.
F25J 3/02 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
B01D 53/14 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by absorption
63.
Determination of chloride concentration in drilling fluids
The invention relates to a system and method for analyzing drilling fluid from a drilling rig for accessing subterranean hydrocarbons. The system and method involve analysis for chloride by replacing conventional chemical titration with electrical conductivity titration.
G01N 27/06 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
42 - Scientific, technological and industrial services, research and design
45 - Legal and security services; personal services for individuals.
Goods & Services
Technology consultation and research in the field of liquefied natural gas processing; Engineering in the field of liquefied natural gas processing; product development consultation in the field of liquefied natural gas processing; industrial design in the field of liquefied natural gas processing; engineering drawings services and preparing related reports and technical documentation in the field of liquefied natural gas processing Licensing of intellectual property in the field of liquefied natural gas processing
The invention relates to the introduction of pressurized fluid, e.g. acid, into a subsea well directly from a vessel (33). A fluid injection assembly (20) is fitted to the top of a subsea Xmas tree (3), the assembly (20) including fail safe closed valve (21) which is controlled via a hydraulic line (31) from the vessel. The hose and assembly and valve are designed with an internal bore allowing a large diameter ball to be dropped (required for acid stimulation). The subsea subsea control module (8) on the Xmas tree is controlled from the producing platform.
E21B 19/16 - Connecting or disconnecting pipe couplings or joints
E21B 19/00 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrickApparatus for feeding the rods or cables
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 34/04 - Valve arrangements for boreholes or wells in well heads in underwater well heads
E21B 34/06 - Valve arrangements for boreholes or wells in wells
E21B 43/27 - Methods for stimulating production by forming crevices or fractures by use of eroding chemicals, e.g. acids
An economical process in which cement sheath integrity, perforation cluster spacing and frac plug integrity can be assessed for every frac stage, potentially leading to improvements in stimulation, completion, cementing and drilling practices. It is based on analyzing wellbore pressure responses occurring at key segments of the wireline pump-down and perforating operation and correlating the results among multiple frac stages and wells in a field or play. A special requirement is that the frac ball (ball check) is inserted in the frac plug and pumped to seat prior to performing perforating operations. A complementary benefit of this process is that selectively establishing injectivity in the most distant perforation cluster can be used to establish inhibited HCl acid (wireline acid) coverage across all perforation intervals for uniform reduction in near-wellbore tortuosity.
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
Method of making and using a proppant from captured carbon in either a carbon mineralization process or in a carbon nanomaterial manufacturing process, followed by treatments to ensure the quality control of the proppants so that they are suitable for use in hydraulic and other reservoir fracturing methods. These proppants allow the sequestration of significant amounts of carbon deep in the ground.
The invention relates to the creation of a sidetrack (11) in an open hole bore (10 for production of hydrocarbons from a carbonate rock formation (2). Acid is delivered to the location (6) where a sidetrack is to be created; the acid dissolves away the formation and creates a trench (7) from which the sidetrack (11) may be drilled.
Drilling a sidetrack in an open hole bore in a hydrocarbon reservoir of acid-soluble formation, e.g. carbonate formation, the creation of a sidetrack (11) in an open hole bore (10 for production of hydrocarbons from a carbonate rock formation (2). Acid is delivered to the location (6) where a sidetrack is to be created; the acid dissolves away the formation and creates a trench (7) from which the sidetrack (11) may be drilled.
Method for characterizing subterranean formation is described. One method involves injecting a fluid into an active well of the subterranean formation at a pressure sufficient to induce one or more hydraulic fractures. Measuring, via a pressure sensor, a poroelastic pressure response caused by inducing of the one or more hydraulic fractures. The pressure sensor is in at least partial hydraulic isolation with the one or more hydraulic fractures.
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
Systems and methods of forming a seal employ a robust metal sealing unit for tubulars used in rotary drilling. Specifically, eutectic alloy is used to seal a tubular to a wellbore after drilling. A downhole heater melts the alloy, allowing the alloy to expand and drain before it cools and solidifies between the wellbore and tubular, forming a gas tight seal.
Method of monitoring produced water at each perforation or entry point by real time ion sensor deployed downhole to measure the content of water soluble ions is discussed. Methods of determining and differentiating nature of water breakthrough in oil production; such as between cycled injection water through a void space conduit, matrix swept injection water and formation water, especially as relates to offshore oil production, are also discussed. Real time ion sensors are deployed and compared with known standards to monitor and remediate water breakthrough, prevent scale deposition, and the like.
A method for creating access to annular spacing during plug and abandonment operations is described. Specifically, helical coils are cut into one or more casings before the plugging material is set. The plugging material is able to exit the helical coils, forming multiple, small rock-to-rock seals.
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
The disclosure describes a BHA that generates electricity downhole which can then be utilized with an electric motor to turn the drive shaft and for drive shaft orientation. The disclosure also describes a more accurate MWD measurements by placing MWD sensors closer to drill bit.
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
Method of decomposing high molecular weight polymer downhole to prevent chelation of iron by residual high molecular weight polymer thereby producing flowback without iron contamination as chelated iron. A secondary method is also described to treat iron chelated produced water with oxidants at surface conditions, utilizing aluminum electrolytes, specifically low basicity polyaluminum chloride, to either co-precipitate residual polymer and bound iron, or to substitute chelated iron with aluminum in the polymer-metal complex, resulting in liberating of iron to enable neutral pH oxidation and removal by precipitation, coagulation, flocculation and physical separation. The produced water with removed iron can be then stored or re-used for other oilfield applications.
The disclosure describes a BHA that generates electricity downhole. The generated electricity can then be utilized with an electric motor to turn the drive shaft and for drive shaft orientation. The disclosure also describes a more accurate MWD measurements by placing MWD sensors closer to drill bit.
Method of decomposing high molecular weight polymer downhole to prevent chelation of iron by residual high molecular weight polymer thereby producing flowback without iron contamination as chelated iron. A secondary method is also described to treat iron chelated produced water with oxidants at surface conditions, utilizing aluminum electrolytes, specifically low basicity polyaluminum chloride, to either co-precipitate residual polymer and bound iron, or to substitute chelated iron with aluminum in the polymer-metal complex, resulting in liberating of iron to enable neutral pH oxidation and removal by precipitation, coagulation, flocculation and physical separation. The produced water with removed iron can be then stored or re-used for other oilfield applications.
The invention relates to a cementing tool for use in oil and gas well decommissioning operations, in particular so called perforate, wash and cement procedures. The tool (1) is designed for running in a well on drill string and for jetting cement through previously formed perforations in the casing (10) to fill the outer annulus (9) with cement. The tool (1) has a cylindrical wall (3) which is formed from steel (11) and elastomeric (5) elements, whereby it is expandable between a first diameter in which it may be run down the well and a second, larger diameter deployed during cementing operations. (FIG. 2).
An embodiment of a method for supplying refrigerants to a liquefied natural gas (LNG) facility includes: advancing a first refrigerant from a first storage device to a heat exchanger, the first refrigerant having a first temperature; advancing a second refrigerant from a second storage device to the heat exchanger, the second refrigerant having a second temperature different than the first temperature; flowing the first refrigerant and the second refrigerant through the heat exchanger; adjusting the second temperature based on at least a transfer of heat between the first refrigerant and the second refrigerant in the heat exchanger; and transferring the first refrigerant and the second refrigerant to the LNG facility.
F25B 45/00 - Arrangements for charging or discharging refrigerant
F25J 1/02 - Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen
The present disclosure generally relates to harvesting geothermal energy from mature and near end-of-life oil and gas reservoirs that have been subjected to secondary oil recovery steam processes like steam-assisted gravity drainage (SAGD), steamflood, etc. The geothermal potential of these mature SAGD reservoirs can be used to generate green electricity thus reducing the greenhouse gas (GHG) footprint of the oil production. Lateral spacing of injectors and producers, with closing of unused members of a well-pair for energy recovery is described.
F24T 10/30 - Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
F24T 10/10 - Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
Method of cleaning sucker rods using a portable cleaning tool containing a rotating brush assembly to remove scale and corrosion residue on the sucker rods is described herein. The brush is annular with an empty or hollow center, such that the rod can penetrate through the hole in the brush. The tool is powered by air compression, and also contains a mechanism of removing the collected debris for disposal. The cleaning tool assembly could be either a standalone device on site placed on a mounted rack, or could be attached to the rod to be cleaned.
A46B 13/02 - Brushes with driven brush bodies power-driven
A46D 1/00 - BristlesSelection of materials for bristles
B08B 13/00 - Accessories or details of general applicability for machines or apparatus for cleaning
B08B 15/04 - Preventing escape of dirt or fumes from the area where they are producedCollecting or removing dirt or fumes from that area from a small area, e.g. a tool
E21B 19/00 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrickApparatus for feeding the rods or cables
83.
System and method for turning well over to production
A system and method for turning a well over to production. The method may include drilling a wellbore using a drillstring, casing the wellbore, fracturing a reservoir, drilling the wellbore to a plug back total depth using the drillstring to clean out the wellbore, and converting the drillstring from a drilling mode to a production mode.
The present disclosure generally relates to harvesting geothermal energy from mature and near end-of-life oil and gas reservoirs that have been subjected to secondary oil recovery steam processes like steam-assisted gravity drainage (SAGD), steamflood, etc. The geothermal potential of these mature SAGD reservoirs can be used to generate green electricity thus reducing the greenhouse gas (GHG) footprint of the oil production. Lateral spacing of injectors and producers, with closing of unused members of a well-pair for energy recovery is described.
F24T 10/20 - Geothermal collectors using underground water as working fluidGeothermal collectors using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
E21B 43/24 - Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
F03G 4/00 - Devices for producing mechanical power from geothermal energy
85.
SYSTEM AND METHOD FOR TURNING WELL OVER TO PRODUCTION
A system and method for turning a well over to production. The method may include drilling a wellbore using a drillstring, casing the wellbore, fracturing a reservoir, drilling the wellbore to a plug back total depth using the drillstring to clean out the wellbore, and converting the drillstring from a drilling mode to a production mode.
Method of cleaning sucker rods using a portable cleaning tool containing a rotating brush assembly to remove scale and corrosion residue on the sucker rods is described herein. The brush is annular with an empty or hollow center, such that the rod can penetrate through the hole in the brush. The tool is powered by air compression, and also contains a mechanism of removing the collected debris for disposal. The cleaning tool assembly could be either a standalone device on site placed on a mounted rack, or could be attached to the rod to be cleaned.
Implementations described and claimed herein provide systems and methods for developing resources from a reservoir. In one implementation, obtaining nuclear magnetic resonance (NMR) log data is obtained for one or more wells of the reservoir. The NMR data is captured using one or more logging tools. An interpreted NMR log is generated by quantifying one or more fluid producibility parameters. The one or more fluid producibility parameters are quantified by processing the NMR log data using automated unsupervised machine learning. A production characterization of the reservoir is generated based on the interpreted NMR log, with the reservoir being developed based on the production characterization.
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
G01N 24/08 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
G01R 33/50 - NMR imaging systems based on the determination of relaxation times
G01V 3/38 - Processing data, e.g. for analysis, for interpretation or for correction
88.
INTEGRATED RESERVOIR CHARACTERIZATION USING NMR T1-T2 MEASUREMENTS
Implementations described and claimed herein provide systems and methods for developing resources from a reservoir. In one implementation, obtaining nuclear magnetic resonance (NMR) log data is obtained for one or more wells of the reservoir. The NMR data is captured using one or more logging tools. An interpreted NMR log is generated by quantifying one or more fluid producibility parameters. The one or more fluid producibility parameters are quantified by processing the NMR log data using automated unsupervised machine learning. A production characterization of the reservoir is generated based on the interpreted NMR log, with the reservoir being developed based on the production characterization.
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
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
G01N 24/08 - Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
G01R 33/50 - NMR imaging systems based on the determination of relaxation times
Systems and methods for reservoir modeling include a super resolution seismic data conversion platform for converting input seismic data into high resolution output seismic data. The super resolution seismic data conversion platform can perform a super resolution inversion on the input seismic data by imposing sparsity and/or coherency assumptions on geophysical parameters represented by wavelet information of the input seismic data. For instance, a seismic trace interval can be determined, and both a reflection coefficient and an acoustic impedance of the seismic trace interval can be constrained. An optimization problem, using the constrained reflection coefficient and the constrained acoustic impedance, can be generated and/or solved by a sparse inversion. As such, a vertical resolution, as well as a seismic bandwidth, of super resolution output seismic data can be increased, improving subterranean feature (e.g., sand and/or shale characteristics) interpretation and well planning and construction.
Systems and methods for reservoir modeling include a super resolution seismic data conversion platform for converting input seismic data into high resolution output seismic data. The super resolution seismic data conversion platform can perform a super resolution inversion on the input seismic data by imposing sparsity and/or coherency assumptions on geophysical parameters represented by wavelet information of the input seismic data. For instance, a seismic trace interval can be determined, and both a reflection coefficient and an acoustic impedance of the seismic trace interval can be constrained. An optimization problem, using the constrained reflection coefficient and the constrained acoustic impedance, can be generated and/or solved by a sparse inversion. As such, a vertical resolution, as well as a seismic bandwidth, of super resolution output seismic data can be increased, improving subterranean feature (e.g., sand and/or shale characteristics) interpretation and well planning and construction.
04 - Industrial oils and greases; lubricants; fuels
35 - Advertising and business services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Crude oil, condensate, natural gas liquids, natural gas,
liquefied natural gas, hydrocarbon gases, and liquefied
petroleum gas. Providing business information in the field of the oil and
gas industries, and in the field of the renewal energy
business. Production of crude oil, nature gas, petroleum, petroleum
condensate, natural gas liquids, and hydrocarbon fuels in
solid, liquid or gaseous form; oil and gas industry
services, namely, production and processing of hydrocarbons;
oil processing services, namely, oil refining; operation of
wells, namely, oil and gas well treatment; production of
renewal energy. Exploration of crude oil, natural gas, petroleum and
petroleum condensate; technical consultation and research
services in the field of exploration, processing and
production of crude oil, natural gas, petroleum, and
petroleum condensate; technical consultation and research
services in the field renewable energy.
04 - Industrial oils and greases; lubricants; fuels
35 - Advertising and business services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Crude oil, condensate, natural gas liquids, natural gas,
liquefied natural gas, hydrocarbon gases, and liquefied
petroleum gas. Providing business information in the field of the oil and
gas industries, and in the field of the renewal energy
business. Production of crude oil, nature gas, petroleum, petroleum
condensate, natural gas liquids, and hydrocarbon fuels in
solid, liquid or gaseous form; oil and gas industry
services, namely, production and processing of hydrocarbons;
oil processing services, namely, oil refining; operation of
wells, namely, oil and gas well treatment; production of
renewal energy. Exploration of crude oil, natural gas, petroleum and
petroleum condensate; technical consultation and research
services in the field of exploration, processing and
production of crude oil, natural gas, petroleum, and
petroleum condensate; technical consultation and research
services in the field renewable energy.
94.
SYSTEMS AND METHODS FOR ISOLATION DETECTION USING A SYMMETRY INVARIANT LOG
Aspects of the present disclosure relate generally to analyzing subterranean cylindrical structures using acoustic sensing. On example includes: sending first acoustic waves in the wellbore via a radial acoustic sensor; receiving first reflection waves associated with the first acoustic waves via the radial acoustic sensor; sending second acoustic waves in the wellbore via the radial acoustic sensor; receiving second reflection waves associated with the second acoustic waves via the radial acoustic sensor; processing recorded data associated with the first acoustic waves, the first reflection waves, the second acoustic waves, and the second reflection waves, wherein the first acoustic waves are associated with a first radial direction, and wherein the second acoustic waves are associated with a second radial direction, the second radial direction being opposite the first radial direction; and generating a plot for identification of one or more isolation regions in the wellbore based on the processing.
E21B 47/0224 - Determining slope or direction of the borehole, e.g. using geomagnetism using seismic or acoustic means
E21B 47/085 - Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
E21B 47/107 - Locating fluid leaks, intrusions or movements using acoustic means
G01V 1/44 - SeismologySeismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
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
Aspects of the present disclosure relate generally to analyzing subterranean cylindrical structures using acoustic sensing. On example includes: sending first acoustic waves in the wellbore via a radial acoustic sensor; receiving first reflection waves associated with the first acoustic waves via the radial acoustic sensor; sending second acoustic waves in the wellbore via the radial acoustic sensor; receiving second reflection waves associated with the second acoustic waves via the radial acoustic sensor; processing recorded data associated with the first acoustic waves, the first reflection waves, the second acoustic waves, and the second reflection waves, wherein the first acoustic waves are associated with a first radial direction, and wherein the second acoustic waves are associated with a second radial direction, the second radial direction being opposite the first radial direction; and generating a plot for identification of one or more isolation regions in the wellbore based on the processing.
Implementations described and claimed herein provide systems and methods for increasing production performance in a Steam Assisted Gravity Drainage system. In one implementation, an upper mating unit of an inverted shroud assembly is received with a lower mating unit of the inverted should assembly in a slidable relationship. The upper mating unit is coupled to a pump-intake assembly. The lower mating unit is coupled to a motor-seal assembly. The slidable relationship secures the pump-intake assembly to the motor-seal assembly. A motor of the motor-seal assembly is directly cooled by opening the motor to a production well based on an exterior attachment of the motor-seal assembly relative to an inverted shroud.
04 - Industrial oils and greases; lubricants; fuels
35 - Advertising and business services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Crude oil, condensate, natural gas liquids, natural gas, liquefied natural gas, hydrocarbon gases, and liquefied petroleum gas. Providing business information in the field of the oil and gas industries, and in the field of the renewal energy business. Production of crude oil, natural gas, petroleum, petroleum condensate, natural gas liquids, and hydrocarbon fuels in solid, liquid or gaseous form; oil and gas industry services, namely production and processing of hydrocarbons; oil processing services, namely, oil refining; operation of wells, namely oil and gas well treatment; production of renewal energy. Exploration of crude oil, natural gas, petroleum and petroleum condensate; technical consultation and research services in the field of exploration, processing and production of crude oil, natural gas, petroleum, and petroleum condensate; technical consultation and research services in the field renewable energy.
04 - Industrial oils and greases; lubricants; fuels
35 - Advertising and business services
40 - Treatment of materials; recycling, air and water treatment,
42 - Scientific, technological and industrial services, research and design
Goods & Services
Crude oil, condensate, natural gas liquids, natural gas, liquefied natural gas, hydrocarbon gases, and liquefied petroleum gas. Providing business information in the field of the oil and gas industries, and in the field of the renewal energy business. Production of crude oil, natural gas, petroleum, petroleum condensate, natural gas liquids, and hydrocarbon fuels in solid, liquid or gaseous form; oil and gas industry services, namely production and processing of hydrocarbons; oil processing services, namely, oil refining; operation of wells, namely oil and gas well treatment; production of renewal energy. Exploration of crude oil, natural gas, petroleum and petroleum condensate; technical consultation and research services in the field of exploration, processing and production of crude oil, natural gas, petroleum, and petroleum condensate; technical consultation and research services in the field renewable energy.
A composition for a plug for use in wellbores undergoing plugging and abandonment operations, as well as plugs made with the composition, wherein the composition includes a first molten metal produced by igniting nano-thermite clusters of <500 nm average diameter admixed with a second molten metal that is produced by melting the wellbore's production tubing and casing.
Systems and methods for processing liquefied natural gas (LNG) can include an LNG production system with a methane refrigeration cycle downstream from an ethylene refrigeration cycle. The methane refrigeration cycle can be a closed loop methane refrigeration cycle that maintains a methane refrigerant separate from a natural gas feed, (e.g., compared to an open loop methane refrigeration cycle that extracts the methane refrigerant from the natural gas feed and recombines the methane refrigerant with the natural gas feed). The natural gas feed can be a medium or high nitrogen gas feed having a nitrogen content greater than 1.0% molarity.
