A valve assembly includes a valve body having a stem bore extending along a stem bore axis and a flow bore extending along a valve body axis, a bonnet coupled to the valve body via one or more fasteners, a stem extending along the stem bore axis and within the stem bore, a packing system positioned along the stem within an annulus formed between the stem and the bonnet, a spacer ring positioned axially above the packing system, and a packing gland coupled to the bonnet to axially secure at least the packing system within the annulus. The spacer ring is positioned in a non-loaded configuration within the annulus such that one or both of an outer diameter or an inner diameter of the spacer ring is separated from one or both of the stem or the bonnet via a respective gap.
F16K 41/04 - Spindle sealings with stuffing-box with at least one ring of rubber or like material between spindle and housing
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
2.
EARTH-BORING TOOLS, NOZZLES, AND ASSOCIATED STRUCTURES, APPARATUS, AND METHODS
A nozzle or use in an earth-boring tool includes an inlet having a first size. The nozzle further includes an outlet having a second size different from the first size of the inlet. The nozzle also includes a fluid passage defined in the nozzle from the inlet to the outlet. The fluid passage includes a transition region configured to transition the fluid passage from the first size of the inlet to the second size of the outlet. The transition region includes a first arc curving inward and a second arc curving outward.
A system for passing driveshaft between hazardous and nonhazardous environments includes a first gas tight seal disposed in a partition between the hazardous and nonhazardous environments, a second gas tight seal in the partition between the hazardous and nonhazardous environments, the first seal and second seal defining a volume therebetween, a driveshaft passing between the hazardous and nonhazardous environments, the driveshaft sealed to the first and second seals, and a purge and pressure device operably connected to the volume. A method for operating a system with a driveshaft inside a hazardous environment with a drive in a nonhazardous environment includes disposing a driveshaft through a first and a second gas tight seal sealedly disposed in a partition between the hazardous and nonhazardous environments, the first seal and second seal defining a volume therebetween, and supplying a preload pressure in the volume with a purge and pressure device.
A nozzle or use in an earth-boring tool includes an inlet having a first size. The nozzle further includes an outlet having a second size different from the first size of the inlet. The nozzle also includes a fluid passage defined in the nozzle from the inlet to the outlet. The fluid passage includes a transition region configured to transition the fluid passage from the first size of the inlet to the second size of the outlet. The transition region includes a first arc curving inward and a second arc curving outward.
A valve assembly includes a valve body having a stem bore extending along a stem bore axis and a flow bore extending along a valve body axis, a bonnet coupled to the valve body via one or more fasteners, a stem extending along the stem bore axis and within the stem bore, a packing system positioned along the stem within an annulus formed between the stem and the bonnet, a spacer ring positioned axially above the packing system, and a packing gland coupled to the bonnet to axially secure at least the packing system within the annulus. The spacer ring is positioned in a non-loaded configuration within the annulus such that one or both of an outer diameter or an inner diameter of the spacer ring is separated from one or both of the stem or the bonnet via a respective gap.
F16K 3/02 - Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing facesPackings therefor
F16K 3/314 - Forms or constructions of slidesAttachment of the slide to the spindle
F16K 27/04 - Construction of housingsUse of materials therefor of sliding valves
A roller cone for a hybrid drill bit may include a cutter portion extending from a lower surface of the roller cone and a plurality of tungsten carbide inserts ("TCI cutters") embedded into the cutter portion. Each of the plurality of TCI cutters may include a base portion that is configured to be embedded within the cutter portion. The roller cone may further include a truncated portion extending from the cutter portion to a top surface of the roller cone. The truncated portion may have a thickness from an inner surface of the roller cone to an outer surface of the roller cone that is less than a length of the base portion of the TCI cutters.
E21B 10/14 - Roller bits combined with non-rolling cutters other than of leading-portion type
E21B 10/16 - Roller bits characterised by tooth form or arrangement
E21B 10/43 - Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
7.
SYSTEM FOR PASSING A DRIVESHAFT BETWEEN HAZARDOUS AND NONHAZARDOUS ENVIRONMENTS, AND METHOD
A system for passing driveshaft between hazardous and nonhazardous environments includes a first gas tight seal disposed in a partition between the hazardous and nonhazardous environments, a second gas tight seal in the partition between the hazardous and nonhazardous environments, the first seal and second seal defining a volume therebetween, a driveshaft passing between the hazardous and nonhazardous environments, the driveshaft sealed to the first and second seals, and a purge and pressure device operably connected to the volume. A method for operating a system with a driveshaft inside a hazardous environment with a drive in a nonhazardous environment includes disposing a driveshaft through a first and a second gas tight seal sealedly disposed in a partition between the hazardous and nonhazardous environments, the first seal and second seal defining a volume therebetween, and supplying a preload pressure in the volume with a purge and pressure device.
F02B 77/08 - Safety, indicating, or supervising devices
F02B 63/06 - Adaptations of engines for driving pumps, hand-held tools or electric generatorsPortable combinations of engines with engine-driven devices for pumps
A device for generating pressure pulses includes a valve member disposed in a fluid passageway, the fluid passageway including a restriction, the valve member movable by an actuator relative to the restriction to generate a pressure pulse in a fluid in the fluid passageway based on varying a relative position between the valve member and the restriction and creating a differential pressure across the fluid passageway, the differential pressure applying a first force on the valve member. The device also includes a piston member in hydraulic communication with the differential pressure, the differential pressure applying a second force on the piston member, the piston member having a locomotive connection to the valve member.
In one aspect, a high-temperature corrosion inhibitor includes a crosslinked polymer, wherein the crosslinked polymer includes at least one polyaromatic carboxylic acid compound and at least one crosslinking agent. In another aspect, a crosslinked polymer for use as a high-temperature corrosion inhibitor includes at least one polyaromatic carboxylic acid compound and ethylene oxide. The polyaromatic carboxylic acid includes benzene- 1,2,4,5-tetracarboxylic acid, an anhydride of benzene-l,2,4,5-tetracarboxyhc acid, and combinations thereof. In yet another aspect, the disclosure is directed to a method for reducing naphthenic acid corrosion at high temperatures. The method includes the steps of providing a high-temperature corrosion inhibitor that includes a crosslinked polymer and treating a crude oil containing naphthenic acid with the high-temperature corrosion inhibitor.
A slip body includes a first plurality of ramps a second plurality of ramps. An anchor, includes a first compression body, and a second compression body, at least one being movable relative to the other, and a slip body disposed between the first and second compression bodies. A method for anchoring a tool in a borehole, including disposing the anchor above in the borehole, reducing a distance between the first and second compression bodies, camming against the first plurality of ramps and/or the second plurality of ramps of the slip body to move the slip body radially. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a slip as described above, disposed within or as a part of the string.
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
11.
CROSSLINKED POLYMERIC HIGH TEMPERATURE CORROSION INHIBITOR
In one aspect, a high-temperature corrosion inhibitor includes a crosslinked polymer, wherein the crosslinked polymer includes at least one polyaromatic carboxylic acid compound and at least one crosslinking agent. In another aspect, a crosslinked polymer for use as a high-temperature corrosion inhibitor includes at least one polyaromatic carboxylic acid compound and ethylene oxide. The polyaromatic carboxylic acid includes benzene-1,2,4,5-tetracarboxylic acid, an anhydride of benzene-1,2,4,5-tetracarboxylic acid, and combinations thereof. In yet another aspect, the disclosure is directed to a method for reducing naphthenic acid corrosion at high temperatures. The method includes the steps of providing a high-temperature corrosion inhibitor that includes a crosslinked polymer and treating a crude oil containing naphthenic acid with the high-temperature corrosion inhibitor.
A slip body includes a first plurality of ramps a second plurality of ramps. An anchor, includes a first compression body, and a second compression body, at least one being movable relative to the other, and a slip body disposed between the first and second compression bodies. A method for anchoring a tool in a borehole, including disposing the anchor above in the borehole, reducing a distance between the first and second compression bodies, camming against the first plurality of ramps and/or the second plurality of ramps of the slip body to move the slip body radially. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a slip as described above, disposed within or as a part of the string.
A method of performing a subterranean operation includes flowing a fluid through a borehole in a subterranean formation, providing a pressure limit, providing a downhole formation pressure constraint, simulating fluid pressure in the borehole using a mathematical model, and determining a boundary for a fluid flow rate and a boundary for a fluid density using an optimization algorithm. The optimization algorithm determines the boundary for the fluid flow rate and the boundary for the fluid density simultaneously using the pressure limit and the downhole formation constraint. The method also includes performing the subterranean operation using the determined boundaries.
A dynamometer is used to dynamically evaluate an electrical submersible pump ("ESP") motor while both are inside of a well. The dynamometer includes a ESP dyno that is mechanically coupled to the ESP motor. The ESP motor and ESP dyno can be a permanent magnet motor or an induction motor, and can have the same or similar values of inertia. Energy absorbed by the ESP dyno can be regenerated as electricity that is transmitted back to a power source, or converted to heat energy in a resistive load bank.
A dynamometer is used to dynamically evaluate an electrical submersible pump (“ESP”) motor while both are inside of a well. The dynamometer includes a ESP dyno that is mechanically coupled to the ESP motor. The ESP motor and ESP dyno can be a permanent magnet motor or an induction motor, and can have the same or similar values of inertia. Energy absorbed by the ESP dyno can be regenerated as electricity that is transmitted back to a power source, or converted to heat energy in a resistive load bank.
A method of removing deposits from a substrate includes contacting the deposits with a treatment fluid containing a solvent and an additive composition including at least one of an alkylbenzene sulfonic acid or an alkylbenzene sulfonate; and separating the deposits from the substrate with the treatment fluid to remove the deposits from the substrate, wherein the deposits includes asphaltenes. The deposits can be removed during a fracturing, acidizing, sand control, remedial, completion, or refracturing operation. The treatment fluid can also reduce the viscosity of crude oil and enhance oil recovery.
C09K 8/524 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
C09K 8/528 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
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
17.
SILICA INHIBITORS FOR SILICA INHIBITION AND DISPERSION
A silica inhibitor is disclosed for inhibiting silica scale formation and dispersing silica. In one aspect, a method for reducing silica levels in an aqueous system involves obtaining a silica inhibitor with a branched polyethylenimine and treating the aqueous system with the silica inhibitor. In another aspect, a method for preparing a silica inhibitor involves obtaining a branched polyethylenimine and protonating the branched polyethylenimine to attain a charged inhibitor with a high-density cationic state. In yet another aspect, a silica inhibitor includes a branched polyethylenimine, a phosphonate, and optionally one or more of a linear polymer based on polyvinyl alcohol, a linear polymer based on polyacrylic acid, and an architectured material.
A cutting element for an earth-boring tool includes a substrate and a volume of polycrystalline diamond on the substrate. The volume of polycrystalline diamond has exterior surfaces defining a front cutting surface, a peripheral edge, and at least a pair of angled tip surfaces defining at least one cutting tip between the pair of angled tip surfaces. The front cutting surface includes a first planar region and a second planar region, one or both of which may include a cutting tip. The front cutting surface may be characterized as generally concave. Earth-boring tools include a tool body and one or more such cutting elements secured to the tool body.
A method of wellbore operations for identifying sample fluid density and viscosity. The sample fluid is collected from a formation, and acoustically irradiated in a flow cell. Acoustic reflections are collected and analyzed to obtain a sound speed of the sample fluid and a value for the slope of the decay rate of an acoustic signal reverberating within a wall of the flow cell, which is in physical contact with the transducer. The fluid temperature, pressure, and the sound speed of the flow cell material may also be measured. The sample fluid density and viscosity are estimated from equations derived by a regression performed on a set of training data, which was generated from testing the flow cell with fluids having known densities, viscosities, or other characteristics.
G01N 29/032 - Analysing fluids by measuring attenuation of acoustic waves
G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object Details
An insert safety valve, including a housing, a flow tube in the housing, a flapper to positions of the flow tube, an atmospheric chamber in the housing, a selectively openable valve to prevent or allow pressure communication between the chamber and an environment, the valve including a valve member, a valve seat, and an unseat member to move the valve member off the valve seat. A borehole system, including a preexisting safety valve having a control line, an insert safety valve, in the preexisting safety valve, the insert safety valve operable with the control line. A method for controlling a wellbore, including running an insert safety valve while preventing fluid communication with an atmospheric chamber of the safety valve, moving the unseat member, and enabling fluid communication with the atmospheric chamber.
An insert safety valve, including a housing, a flow tube in the housing, a flapper responsive to positions of the flow tube, an atmospheric chamber in the housing, an element upon the housing, a selectively openable arrangement to prevent or allow pressure communication between the chamber and an environment outside the housing, the arrangement including an opener responsive to movement of the element to selectively open the openable arrangement. A borehole system, including a preexisting downhole structure having a control line, an insert safety valve, in the preexisting downhole structure, the insert safety valve operable with the control line. A method for controlling a wellbore, including running an insert safety valve while preventing fluid communication with an atmospheric chamber of the safety valve, moving the opener, and enabling fluid communication with the atmospheric chamber.
An apparatus for processing cuttings from drilling a borehole in a geologic formation includes: a cuttings processing system having a cuttings processing device to remove oil from the cuttings that includes an adjustable operational parameter and an actuator or a device controller for adjusting the adjustable operational parameter; an in-line nuclear magnetic resonance (NMR) instrument comprising a conduit coupled to an output of the cuttings processing system or the processing device and containing the discharged cuttings and providing an NMR output signal related to an amount of oil measured by the in-line NMR instrument; and a controller coupled to the in-line NMR instrument, the controller having a controller output coupled to the processing device and providing a control signal to adjust the adjustable operational parameter in accordance with an algorithm that uses the NMR output signal as input to reduce the amount of oil retained by the cuttings.
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
G01V 3/14 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with electron or nuclear magnetic resonance
G01V 3/08 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
E21B 47/13 - 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 by electromagnetic energy, e.g. of radio frequency range
An anchor, including a housing, a slip in contact with the housing, and a power drive gear mounted in the housing and disposed to drive the slip. A method for operating an anchor, including supplying an input to the anchor, driving a slip of the anchor to a position other than a position occupied by the slip immediately prior to the input, wherein the driving comprises rotating a power drive gear. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and an anchor disposed within or as a part of the string.
E21B 33/129 - PackersPlugs with mechanical slips for hooking into the casing
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
A knock-off plug for a mill, including a body having a fluid pathway therein and configured for connection to a fluid conduit, a tortuous pathway fluidically associated with the fluid pathway, the plug configured to jettison the tortuous pathway upon knock off. A mill, including running a mill, a knock-off plug, a diverter and an anchor as an assembly to depth in a borehole, passing a pressure signal through the knock-off plug to the anchor, the plug having a tortuous pathway therein, setting the anchor, knocking the knock-off plug off the mill and removing tortuous pathway. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a knock-off plug, disposed within or as a part of the string.
A method of removing deposits from a substrate includes contacting the deposits with a treatment fluid containing a solvent and an additive composition including at least one of an alkylbenzene sulfonic acid or an alkylbenzene sulfonate; and separating the deposits from the substrate with the treatment fluid to remove the deposits from the substrate, wherein the deposits includes asphaltenes. The deposits can be removed during a fracturing, acidizing, sand control, remedial, completion, or refracturing operation. The treatment fluid can also reduce the viscosity of crude oil and enhance oil recovery.
C09K 8/524 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
C10G 75/04 - Inhibiting corrosion or fouling in apparatus for treatment or conversion of hydrocarbon oils, in general by addition of antifouling agents
C10G 29/20 - Organic compounds not containing metal atoms
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
26.
Downhole earth-boring rotary drill bits comprising center cutting modules and related methods
A center cutting module configured for mounting within a body of a downhole earth-boring rotary bit including an elongated body, a module crown secured to a first end of the elongated body, at least one cutting element secured to the module crown, and a drive secured to a second end of the elongated body, wherein the drive causes rotation of the elongated body and the module crown. A downhole earth-boring rotary drill bit including a bit body configured for rotation about a first rotational axis and the center cutting module. Methods of drilling a wellbore within a subterranean formation using the downhole earth-boring rotary drill bit.
E21B 10/34 - Drill bits with leading portion, i.e. drill bits with a pilot cutterDrill bits for enlarging the borehole, e.g. reamers with expansible cutting tools of roller-cutter type
An apparatus for processing cuttings from drilling a borehole in a geologic formation includes: a cuttings processing system having a cuttings processing device to remove oil from the cuttings that includes an adjustable operational parameter and an actuator or a device controller for adjusting the adjustable operational parameter; an in-line nuclear magnetic resonance (NMR) instrument comprising a conduit coupled to an output of the cuttings processing system or the processing device and containing the discharged cuttings and providing an NMR output signal related to an amount of oil measured by the in-line NMR instrument; and a controller coupled to the in-line NMR instrument, the controller having a controller output coupled to the processing device and providing a control signal to adjust the adjustable operational parameter in accordance with an algorithm that uses the NMR output signal as input to reduce the amount of oil retained by the cuttings.
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
An anchor, including a housing, a slip in contact with the housing, and a power drive gear mounted in the housing and disposed to drive the slip. A method for operating an anchor, including supplying an input to the anchor, driving a slip of the anchor to a position other than a position occupied by the slip immediately prior to the input, wherein the driving comprises rotating a power drive gear. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and an anchor disposed within or as a part of the string.
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
A knock-off plug for a mill, including a body having a fluid pathway therein and configured for connection to a fluid conduit, a tortuous pathway fluidically associated with the fluid pathway, the plug configured to jettison the tortuous pathway upon knock off. A mill, including a knock off plug having a tortuous pathway therein. A method for beginning a casing exit, including running a mill, a knock-off plug, a diverter and an anchor as an assembly to depth in a borehole, passing a pressure signal through the knock-off plug to the anchor, the plug having a tortuous pathway therein, setting the anchor, knocking the knock-off plug off the mill and removing tortuous pathway. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a knock-off plug, disposed within or as a part of the string.
E21B 29/06 - Cutting windows, e.g. directional window cutters for whipstock operations
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
30.
ACOUSTIC FLUID DENSITY DETERMINATION FOR GEOMETRICALLY COMPLEX FLOW CELLS
A method of wellbore operations for identifying sample fluid density and viscosity. The sample fluid is collected from a formation, and acoustically irradiated in a flow cell. Acoustic reflections are collected and analyzed to obtain a sound speed of the sample fluid and a value for the slope of the decay rate of an acoustic signal reverberating within a wall of the flow cell, which is in physical contact with the transducer. The fluid temperature, pressure, and the sound speed of the flow cell material may also be measured. The sample fluid density and viscosity are estimated from equations derived by a regression performed on a set of training data, which was generated from testing the flow cell with fluids having known densities, viscosities, or other characteristics.
G01N 9/24 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing the transmission of wave or particle radiation through the material
E21B 49/10 - Obtaining fluid samples or testing fluids, in boreholes or wells using side-wall fluid samplers or testers
An insert safety valve, including a housing, a flow tube in the housing, a flapper responsive to positions of the flow tube, an atmospheric chamber in the housing, an element upon the housing, a selectively openable arrangement to prevent or allow pressure communication between the chamber and an environment outside the housing, the arrangement including an opener responsive to movement of the element to selectively open the openable arrangement. A borehole system, including a preexisting downhole structure having a control line, an insert safety valve, in the preexisting downhole structure, the insert safety valve operable with the control line. A method for controlling a wellbore, including running an insert safety valve while preventing fluid communication with an atmospheric chamber of the safety valve, moving the opener, and enabling fluid communication with the atmospheric chamber.
A downhole tool, including first and second sections, the second section being rotatable relative to the first section, a lock sleeve attached to the first and second sections, the lock sleeve being unlockable by application of a threshold torque acting between the first section and the second section. A positive displacement motor assembly, including a housing, a power section, and a stator, a drive sub connected to the rotor, and a lock sleeve nonrotatably attached to the housing and to the drive sub, the lock sleeve being releasable at a selected threshold torque between the housing and the drive sub. A method for forming a casing exit, including running a tool to a target location in a borehole, causing the first section and the second section to experience different rotational strain, releasing the lock sleeve at a torque threshold between the first and second sections.
E21B 23/02 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
E21B 17/043 - CouplingsJoints between rod and bit, or between rod and rod threaded with locking means
E21B 34/10 - Valve arrangements for boreholes or wells in wells operated by control fluid supplied from outside the borehole
A borehole system performs a method for identifying a pay zone in a formation. A processor measures a first dielectric constant of the formation at a selected depth or depth interval in a borehole in the formation using a first electromagnetic wave or signal transmitted through the formation at the selected depth or depth interval at a first frequency, measures a second dielectric constant of the formation at the selected depth or depth interval in the borehole in the formation using a second electromagnetic wave or signal transmitted through the formation at the selected depth or depth interval at a second frequency, and identifies the pay zone in the formation based on the first dielectric constant at the selected depth or depth interval and the second dielectric constant at the selected depth or depth interval.
G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
E21B 47/13 - 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 by electromagnetic energy, e.g. of radio frequency range
34.
BI-DIRECTIONAL METAL TO METAL SEALING SYSTEMS AND METHODS
A wellbore system includes a hanger body (202) with a recessed portion (302), a primary sealing surface (322), a secondary sealing surface (326), and a retaining skirt (330). The recessed portion (302) receives a nose (208) of an associated tool component (204) to form at least two metal to metal seals (308, 312) between the hanger body (202) and the associated tool component (204). The primary sealing surface (322) may be formed at a radially outward position to resist bore pressure and the secondary sealing surface (326) may be formed between the recessed portion (302) and a face (328) of associated tool component (204) to resist a radially inward pressure.
A downhole tool, including first and second sections, the second section being rotatable relative to the first section, a lock sleeve attached to the first and second sections, the lock sleeve being unlockable by application of a threshold torque acting between the first section and the second section. A positive displacement motor assembly, including a housing, a power section, and a stator, a drive sub connected to the rotor, and a lock sleeve nonrotatably attached to the housing and to the drive sub, the lock sleeve being releasable at a selected threshold torque between the housing and the drive sub. A method for forming a casing exit, including running a tool to a target location in a borehole, causing the first section and the second section to experience different rotational strain, releasing the lock sleeve at a torque threshold between the first and second sections.
E21B 23/02 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
An insert safety valve, including a housing, a flow tube in the housing, a flapper to positions of the flow tube, an atmospheric chamber in the housing, a selectively openable valve to prevent or allow pressure communication between the chamber and an environment, the valve including a valve member, a valve seat, and an unseat member to move the valve member off the valve seat. A borehole system, including a preexisting safety valve having a control line, an insert safety valve, in the preexisting safety valve, the insert safety valve operable with the control line. A method for controlling a wellbore, including running an insert safety valve while preventing fluid communication with an atmospheric chamber of the safety valve, moving the unseat member, and enabling fluid communication with the atmospheric chamber.
Reservoir monitoring of a producing well consists of use of a tagged asphaltene inhibitor to determine deposition of asphaltene in the well. A renewable amount of tagged asphaltene inhibitor may be introduced into the well once the amount of tagged inhibitor in the well approaches a pre-determined minimum inhibitory concentration of the tagged asphaltene inhibitor.
C09K 8/524 - Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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
38.
Method of Detecting Flow Assurance Using a Tagged Asphaltene Inhibitor
Reservoir monitoring of a producing well consists of use of a tagged asphaltene inhibitor to determine deposition of asphaltene in the well. A renewable amount of tagged asphaltene inhibitor may be introduced into the well once the amount of tagged inhibitor in the well approaches a pre-determined minimum inhibitory concentration of the tagged asphaltene inhibitor.
A borehole system performs a method for identifying a pay zone in a formation. A processor measures a first dielectric constant of the formation at a selected depth or depth interval in a borehole in the formation using a first electromagnetic wave or signal transmitted through the formation at the selected depth or depth interval at a first frequency, measures a second dielectric constant of the formation at the selected depth or depth interval in the borehole in the formation using a second electromagnetic wave or signal transmitted through the formation at the selected depth or depth interval at a second frequency, and identifies the pay zone in the formation based on the first dielectric constant at the selected depth or depth interval and the second dielectric constant at the selected depth or depth interval.
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
A computer-implemented method includes determining a chemical mixture for a drilling fluid and maintaining or updating the chemical mixture. Determining the chemical mixture is based on a first interdependency of a first target property of a set of properties associated with the drilling fluid and a first substance to be added for the chemical mixture. Determining the chemical mixture is based on a second interdependency of the first target property and a second substance to be added for the chemical mixture. Maintaining or updating the chemical mixture is based on a first measurement of the first target property, a second measurement of a second target property of the set of properties, or combinations including one of the foregoing.
A wellbore system includes a hanger body with a recessed portion, a primary sealing surface, a secondary sealing surface, and a retaining skirt. The recessed portion receives a nose of an associated tool component to form at least two metal to metal seals between the hanger body and the associated tool component. The primary sealing surface may be formed at a radially outward position to resist bore pressure and the secondary sealing surface may be formed between the recessed portion and a face of associated tool component to resist a radially inward pressure.
A method of imparting hydrophobicity and/or oleophobicity to a surface of a subterranean formation penetrated by a well during production of hydrocarbons from the well consists of pumping a surface modifying wettability agent into the well, the surface modifying wettability agent having an anchor, one or more hydrophobic and/or oleophobic functional groups attached to the anchor and one or more alkoxy groups as blocking moieties which increase stability of the agent in the presence of water by slowing down hydrolysis at the formation surface.
A valve assembly includes a valve body, a bonnet coupled to the valve body, a stem within the stem bore, a bonnet cap axially aligned with the bonnet along a stem bore axis, and a valve drive train coupled to the stem. The valve assembly also includes a first eutectic ring, positioned between a bonnet cap interior surface and an upper shelf of the valve drive train, the first eutectic ring blocking axially upward movement of the valve drive train when in a solid state, and a second eutectic ring, positioned between a lower bonnet cap interior surface and a lower shelf of the valve drive train to fill a gap, wherein the bonnet cap is configured to move in an axially downward direction after the first and second eutectic ring transition to a flowable state.
F16K 17/38 - Safety valvesEqualising valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
F16K 41/16 - Spindle sealings with a flange on the spindle which rests on a sealing ring
An actuator, including a dynamic component, a static component. A seal is disposed between the dynamic component and the static component. A bypass pathway is open to flow dependent upon a position of the dynamic component relative to the static component, the bypass pathway when open changing a required flow rate to move the dynamic component relative to the static component. A method including applying a first pressure across a seal between a static component and a dynamic component, moving the dynamic component, opening or closing a bypass pathway with the movement, bypassing fluid when open whereby a higher flow rate is required to continue the movement of the dynamic component. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and an actuator disposed within or as a part of the string.
An actuator, including a dynamic component, a static component. A seal is disposed between the dynamic component and the static component. A bypass pathway is open to flow dependent upon a position of the dynamic component relative to the static component, the bypass pathway when open changing a required flow rate to move the dynamic component relative to the static component. A method including applying a first pressure across a seal between a static component and a dynamic component, moving the dynamic component, opening or closing a bypass pathway with the movement, bypassing fluid when open whereby a higher flow rate is required to continue the movement of the dynamic component. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and an actuator disposed within or as a part of the string.
A seal energization assembly, including a seal, a setting arrangement in operative contact with the seal, and a set energy compensation device disposed in operative contact with the seal and add energy to the setting arrangement responsive to a falling environmental temperature. A method for maintaining energy in a seal during temperature down cycling, including automatically compensating for temperature related reduction in the seal energy by expanding a set energy compensating device in contact with the seal. A packer, including a mandrel, a seal on the mandrel, and a setting arrangement in operative contact with the seal, the arrangement including a negative thermal expansion set energy compensation device. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a seal energization assembly, disposed within or as a part of the string.
A computer-implemented method includes determining a chemical mixture for a drilling fluid and maintaining or updating the chemical mixture. Determining the chemical mixture is based on a first interdependency of a first target property of a set of properties associated with the drilling fluid and a first substance to be added for the chemical mixture. Determining the chemical mixture is based on a second interdependency of the first target property and a second substance to be added for the chemical mixture. Maintaining or updating the chemical mixture is based on a first measurement of the first target property, a second measurement of a second target property of the set of properties, or combinations including one of the foregoing.
B01F 35/213 - Measuring of the properties of the mixtures, e.g. temperature, density or colour
B01F 101/49 - Mixing drilled material or ingredients for well-drilling, earth-drilling or deep-drilling compositions with liquids to obtain slurries
G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
48.
SYNERGISTIC PARAFFIN INHIBITORS WITH HIGH AND LOW CRYSTALLIZATION ONSET TEMPERATURES
In one aspect, a synergistic paraffin inhibitor includes a high-temperature intermediate and a low-temperature intermediate. The high-temperature intermediate has a high crystallization onset temperature, while the low-temperature intermediate has a low crystallization onset temperature that is within a range of about 6°C and about 30°C lower than the high crystallization onset temperature. In another aspect, the synergistic paraffin inhibitor is prepared by obtaining a high-temperature intermediate and a low-temperature intermediate. The high-temperature intermediate and the low-temperature intermediate are mixed to form the synergistic paraffin inhibitor, which may be introduced to a crude oil.
C08L 33/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereofCompositions of derivatives of such polymers
A work string and method of absorbing a vibration at the work string. The work string includes an outer member, an inertial mass disposed within the outer member and a damping element between the outer member and the inertial mass. The damping element includes a liquid having a viscosity that increases with increasing temperature. The damping element absorbs the vibration being transferred from the outer member to the inertial mass.
F16F 15/173 - Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid having an inertia member, e.g. ring provided within a closed housing
50.
SPRING HEALTH MONITOR FOR SPRING ACTUATED TOOLS, METHOD, AND SYSTEM
A spring actuated tool including a functional component, a spring in contact with the functional component, an acoustic sensor disposed in acoustic proximity to the spring, the acoustic sensor monitoring the spring for acoustic signals generated during spring deformation. A spring health monitor for a spring actuated tool including an acoustic sensor in acoustic communication with a spring of the spring actuated tool, the acoustic sensor configured to monitor the spring for acoustic signals generated during spring deformation, a communication arrangement communicatively connecting the sensor to an information destination. A method for managing a tool having an actuation spring, including monitoring sounds emitted from the spring during movement of the spring. A borehole system including a borehole in a subsurface formation, a string in the borehole, a spring actuated tool disposed within or as a part of the string.
G01N 29/14 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic wavesVisualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object using acoustic emission techniques
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
An apparatus collects one or more metrics associated with an energy storage device in response to one or more criteria and transmits the one or more metrics based on a comparison of the one or more metrics to a target threshold value. The one or more metrics include a concentration level of a noxious gas. The apparatus activates one or more functions based on at least one of a control signal and the comparison. The one or more functions include at least one of a first function associated with venting the energy storage device and a second function associated with decoupling the energy storage device from a tool electrically coupled to the energy storage device.
In one aspect, a synergistic paraffin inhibitor includes a high-temperature intermediate and a low-temperature intermediate. The high-temperature intermediate has a high crystallization onset temperature, while the low-temperature intermediate has a low crystallization onset temperature that is within a range of about 6° C. and about 30° C. lower than the high crystallization onset temperature. In another aspect, the synergistic paraffin inhibitor is prepared by obtaining a high-temperature intermediate and a low-temperature intermediate. The high-temperature intermediate and the low-temperature intermediate are mixed to form the synergistic paraffin inhibitor, which may be introduced to a crude oil.
A seal energization assembly, including a seal, a setting arrangement in operative contact with the seal, and a set energy compensation device disposed in operative contact with the seal and add energy to the setting arrangement responsive to a falling environmental temperature. A method for maintaining energy in a seal during temperature down cycling, including automatically compensating for temperature related reduction in the seal energy by expanding a set energy compensating device in contact with the seal. A packer, including a mandrel, a seal on the mandrel, and a setting arrangement in operative contact with the seal, the arrangement including a negative thermal expansion set energy compensation device. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a seal energization assembly, disposed within or as a part of the string.
A work string and method of absorbing a vibration at the work string. The work string includes an outer member, an inertial mass disposed within the outer member and a damping element between the outer member and the inertial mass. The damping element includes a liquid having a viscosity that increases with increasing temperature. The damping element absorbs the vibration being transferred from the outer member to the inertial mass.
A treatment formulation for removing target impurities from a system can include a synergistic combination of a polymer and a nanoparticle compound. In one aspect, a treatment formulation includes a contaminant removal agent and a solvent. The contaminant removal agent of one embodiment includes at least one nanoparticle compound, and suitable nanoparticle compounds are nitrides, oxide nanoparticles, clays, and carbon-based nanoparticles. In another embodiment, the contaminant removal agent includes at least one polymer. Suitable polymers are sulfonated PEEK polymer, sodium carboxy cellulose, poly(ethylene glycol) diamine, polyvinyl pyrrolidone functionalized with sodium salt of chloroacetic acid, polyvinyl pyrrolidone functionalized with propyl sulfonate, polyethyleneimine, 4-aminonapthalenesulfonic acid, 3-(1-pyridino)-1-propanesulfonate, and octadecylphosphonic acid. In another aspect, methods for removing a target impurity from a fluid involve identifying the target impurity, providing a contaminant removal agent with at least one polymer and at least one nanoparticle compound, and contacting the fluid with the contaminant removal agent.
A treatment formulation for removing target impurities from a system can include a synergistic combination of a polymer and a nanoparticle compound. In one aspect, a treatment formulation includes a contaminant removal agent and a solvent. The contaminant removal agent of one embodiment includes at least one nanoparticle compound, and suitable nanoparticle compounds are nitrides, oxide nanoparticles, clays, and carbon-based nanoparticles. In another embodiment, the contaminant removal agent includes at least one polymer. Suitable polymers are sulfonated PEEK polymer, sodium carboxy cellulose, poly(ethylene glycol) diamine, polyvinyl pyrrolidone functionalized with sodium salt of chloroacetic acid, polyvinyl pyrrolidone functionalized with propyl sulfonate, polyethyleneimine, 4-aminonapthalenesulfonic acid, 3-(1-pyridino)-1-propanesulfonate, and octadecylphosphonic acid. In another aspect, methods for removing a target impurity from a fluid involve identifying the target impurity, providing a contaminant removal agent with at least one polymer and at least one nanoparticle compound, and contacting the fluid with the contaminant removal agent.
A one trip cement plugging and milling/drilling sidetrack assembly, including a whipstock having a cement flow bore therethrough, a milling/drilling system having a cement flow bore therethrough attached to the whipstock, and a cement flow adapter conduit connecting the flow bore in the milling/drilling system with the flow bore in the whipstock. A method for cement plugging and milling/drilling a sidetrack in one trip, including flowing cement through a mill/drill, through an adapter conduit and through a whipstock connected to the mill/drill, creating a cement plug with the cement, setting an anchor connected to the whipstock, and drilling a sidetrack. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and a one trip cement plugging and milling/drilling sidetrack assembly disposed within or as a part of the string.
An apparatus collects one or more metrics associated with an energy storage device in response to one or more criteria and transmits the one or more metrics based on a comparison of the one or more metrics to a target threshold value. The one or more metrics include a concentration level of a noxious gas. The apparatus activates one or more functions based on at least one of a control signal and the comparison. The one or more functions include at least one of a first function associated with venting the energy storage device and a second function associated with decoupling the energy storage device from a tool electrically coupled to the energy storage device.
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 41/00 - Equipment or details not covered by groups
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
A drilling string (102) includes a downhole vibration damping system (122). The drill string (102) includes an inertial mass (208) configured to move relative to the drill string (102), a frictional element (302) between the inertial mass (208) and the drill string (102), and a first stiffness element (304) in series with the frictional element (302) and between one of the frictional element (302) and the inertial mass (208).
F16F 7/112 - Vibration-dampersShock-absorbers using inertia effect the inertia member being resiliently mounted on fluid springs
F16F 15/14 - Suppression of vibrations in rotating systems by making use of members moving with the system using freely-swinging masses rotating with the system
A pumping system deployed in a wellbore is designed for producing two-phase fluids through production tubing to a wellhead, while protecting downhole tubulars and equipment from corrosive gases from the wellbore. The pumping system includes a pump, a gas separator upstream from the pump, a packer above the pump, and a gas evacuation module between the pump and the packer. The packer blocks the movement of gases through the annular space and forms a gas collection space between the packer and the pump. The gas evacuation module is configured to remove gas from the gas collection space and mix the gas with liquid-dominant fluids received from the pump. The gas separator includes an intake configured to receive the two-phase fluids, a gas discharge configured to eject gas-dominant fluids into the annular space, and a liquid discharge configured to provide the pump with liquid-dominant fluids.
A method for making a drill bit, including forming a bit body with an outer surface, forming a cutter pocket in the bit body, forming a dam about the cutter pocket that is proud of the surface, hardfacing the bit body to a depth not exceeding a height of the dam. A drill bit, including a bit body having an outer surface, a cutter pocket defined in the bit body, and a dam disposed about the cutter pocket and proud of the outer surface.
A pumping system deployed in a wellbore is designed for producing two-phase fluids through production tubing to a wellhead, while protecting downhole tubulars and equipment from corrosive gases from the wellbore. The pumping system includes a pump, a gas separator upstream from the pump, a packer above the pump, and a gas evacuation module between the pump and the packer. The packer blocks the movement of gases through the annular space and forms a gas collection space between the packer and the pump. The gas evacuation module is configured to remove gas from the gas collection space and mix the gas with liquid-dominant fluids received from the pump. The gas separator includes an intake configured to receive the two-phase fluids, a gas discharge configured to eject gas-dominant fluids into the annular space, and a liquid discharge configured to provide the pump with liquid-dominant fluids.
A method for making a drill bit, including forming a bit body with an outer surface, forming a cutter pocket in the bit body, forming a dam about the cutter pocket that is proud of the surface, hardfacing the bit body to a depth not exceeding a height of the dam. A drill bit, including a bit body having an outer surface, a cutter pocket defined in the bit body, and a dam disposed about the cutter pocket and proud of the outer surface.
A system and method of determining a rheological property of a fluid. A turbine has at least two disks separated by a variable gap and rotating around a rotational axis of the turbine. Fluid flows into the gap at a circumferential edge of the disks to rotate the disks. A first value of a dynamic parameter of the turbine resulting from an interaction between the disks and the fluid in the gap is measured as the fluid flows from the circumferential edge towards the axis with the gap having a first gap width. A second value of the dynamic parameter is measured with the gap having a second gap width different from the first gap width. The rheological property of the fluid is determined based on the first value of the dynamic parameter and the second value of the dynamic parameter.
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
G01N 11/08 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture by measuring pressure required to produce a known flow
65.
SEPARATION-PROMOTING AGENTS FOR OIL & WATER TREATMENTS IN DESALTER PROCESSES
In one aspect, a demulsification additive includes a separation-promoting agent and a solvent. In another aspect, a demulsification additive includes a separation-promoting agent and a demulsifier or demulsifier intermediate. In another aspect, a method for separating crude oil from water includes introducing the water to the cmde oil, providing a demulsification additive that includes a separation-promoting agent, and contacting the water and the crude oil with the demulsification additive. In one embodiment, the separation-promoting agent is selected from the group consisting of dextran sulfate sodium salt, polyvinyl pyrrolidone functionalized with sodium salt of chloroacetic acid, poly(ethyleneglycol)-b(propyleneglycol)-b(ethyleneglycol) block copolymer, polyvinyl pyrrolidone functionalized with propyl sulfonate, sulfonated polyether ether ketone polymer, polyvinyl pyrrolidone functionalized with bromohexane, polyvinyl pyrrolidone functionalized with iodododecane, and combinations thereof.
A system and method of determining a rheological property of a fluid. A turbine has at least two disks separated by a variable gap and rotating around a rotational axis of the turbine. Fluid flows into the gap at a circumferential edge of the disks to rotate the disks. A first value of a dynamic parameter of the turbine resulting from an interaction between the disks and the fluid in the gap is measured as the fluid flows from the circumferential edge towards the axis with the gap having a first gap width. A second value of the dynamic parameter is measured with the gap having a second gap width different from the first gap width. The rheological property of the fluid is determined based on the first value of the dynamic parameter and the second value of the dynamic parameter.
A system for creating an enhanced parameter map of an earth formation. A sensor obtains parameter data from the earth formation. A processor obtains an initial parameter map along at least a portion of a borehole through the earth formation. The initial parameter map includes a distribution of values of a parameter of the earth formation. A profile of the parameter is selected from the initial parameter map. A region is selected within the selected profile and a location of a region boundary of the selected region is identified. A location of a region boundary of a neighboring region in a neighboring profile is identified and used to replace the selected region boundary. A location of the replaced region boundary is determined using the location of the region boundary of the neighboring region in the neighboring profile. An enhanced parameter map is displayed with the replaced region boundary.
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
A side pocket mandrel for use in a gas lift system is configured to improve the recovery of petroleum fluids from a well, where the gas lift system is surrounded by an annular space within the well. The side pocket mandrel includes a central bore extending through the side pocket mandrel, a side pocket tube laterally offset from the central bore, a port that extends from the side pocket tube to the annular space, and a single actuation valve installed on the port. The single actuation valve prevents the passage of the petroleum fluids from the annular space into the side pocket tube until a high threshold pressure in the annular space is reached and then the pressure in the annular space is reduced so to a low threshold pressure.
Non-acidic sulfur compounds can be extracted from a gas stream by contacting the gas stream with a carbonate solvent that contains at least one organic carbonate in an amount that is effective to solvate at least a portion of the non-acidic sulfur compounds. The gas steam can then be separated from the carbonate solvent that contains the non-acidic sulfur compounds. The carbonate solvent may optionally include a co-solvent and/or a mercaptan scavenger.
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 system and method for shearing a fluid. The system includes a turbine having a rotational axis, a fluid inlet for receiving the fluid, a disk rotatable about the rotational axis at a selected speed, and a fluid outlet for expelling the fluid from the turbine. The fluid flows across a surface of the disk, and the disk shears the fluid as the fluid moves across a surface of the disk.
F04D 7/04 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogeneous
E21B 21/06 - Arrangements for treating drilling fluids outside the borehole
F04D 29/22 - Rotors specially for centrifugal pumps
71.
METHOD FOR CHARACTERIZING ORGANIC RICH ROCK MATURITY AND PRODUCIBILITY
Disclosed herein is a method for identification of zones of high producibility in shale reservoirs. The method includes obtaining a Total Organic Carbon (TOC) content and an organic sulfur content of a formation interval using geochemical measurements and determining a dielectric dispersion response of the formation interval using dielectric measurements. The dielectric dispersion response is processed to obtain a pore system tortuosity parameter. The pore system tortuosity parameter is correlated with a ratio of the organic sulfur content to the TOC content to identify presence of zones of mature kerogen with high or low hydrocarbon producibility, immature kerogen with a presence of clay, and on- productive or over-mature zones within the formation interval. This correlation is performed by comparing the ratio of the organic sulfur content to the TOC to an organic matter maturity7 threshold and comparing the pore system tortuosity parameter to a pore system tortuosity parameter threshold.
G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
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 41/00 - Equipment or details not covered by groups
E21B 49/08 - Obtaining fluid samples or testing fluids, in boreholes or wells
A side pocket mandrel for use in a gas lift system is configured to improve the recovery of petroleum fluids from a well, where the gas lift system is surrounded by an annular space within the well. The side pocket mandrel includes a central bore extending through the side pocket mandrel, a side pocket tube laterally offset from the central bore, a port that extends from the side pocket tube to the annular space, and a single actuation valve installed on the port. The single actuation valve prevents the passage of the petroleum fluids from the annular space into the side pocket tube until a high threshold pressure in the annular space is reached and then the pressure in the annular space is reduced so to a low threshold pressure.
A method of adaptive inspection includes receiving data characterizing one or more images of an inspection region of an industrial machine acquired by an inspection system operating based on a first set of operating parameters. The inspection region includes a site feature. The method also includes determining, by an analytical model, one or more characteristics of the inspection region from the received data characterizing the one or more images of the inspection region. The method further includes generating a control signal based on the one or more characteristics of the inspection region and/or a user input. The inspection system is configured to perform a new inspection of the inspection region based on the control signal.
A system and method for shearing a fluid. The system includes a turbine having a rotational axis, a fluid inlet for receiving the fluid, a disk rotatable about the rotational axis at a selected speed, and a fluid outlet for expelling the fluid from the turbine. The fluid flows across a surface of the disk, and the disk shears the fluid as the fluid moves across a surface of the disk.
F01D 1/36 - Non-positive-displacement machines or engines, e.g. steam turbines characterised by non-bladed rotor, e.g. with drilled holes using fluid friction
F04D 5/00 - Pumps with circumferential or transverse flow
F04D 13/10 - Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
75.
METHOD OF IDENTIFYING TOP OF CEMENT IN REAL TIME WHEN CEMENTING A LINER
A borehole system and a method of installing a liner in a borehole. A liner is disposed in the borehole. A cement is flowed into an annulus between the liner and a wall of the borehole. An acoustic sensor is disposed within the liner and measures an acoustic impedance of the annulus as the cement is flowing into the annulus. A processor determines a depth of an upper surface of the wet cement from the acoustic impedance and performs an operation based on the depth of the upper surface of the wet cement.
An energy harvester, including a cyclical impulse device, and a piezoelectric generator deformably connected to the device. A method for harvesting energy from a flowing fluid including inducing a selected flow regime, causing a cyclical impulse device to cycle based upon the flow regime, and physically deforming a piezoelectric generator with the device. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and an energy harvester disposed within or as a part of the string.
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
77.
METHOD OF IDENTIFYING TOP OF CEMENT IN REAL TIME WHEN CEMENTING A LINER
A borehole system and a method of installing a liner in a borehole. A liner is disposed in the borehole. A cement is flowed into an annulus between the liner and a wall of the borehole. An acoustic sensor is disposed within the liner and measures an acoustic impedance of the annulus as the cement is flowing into the annulus. A processor determines a depth of an upper surface of the wet cement from the acoustic impedance and performs an operation based on the depth of the upper surface of the wet cement.
Disclosed herein is a method for identification of zones of high producibility in shale reservoirs. The method includes obtaining a Total Organic Carbon (TOC) content and an organic sulfur content of a formation interval using geochemical measurements and determining a dielectric dispersion response of the formation interval using dielectric measurements. The dielectric dispersion response is processed to obtain a pore system tortuosity parameter. The pore system tortuosity parameter is correlated with a ratio of the organic sulfur content to the TOC content to identify presence of zones of mature kerogen with high or low hydrocarbon producibility, immature kerogen with a presence of clay, and on-productive or over-mature zones within the formation interval. This correlation is performed by comparing the ratio of the organic sulfur content to the TOC to an organic matter maturity threshold and comparing the pore system tortuosity parameter to a pore system tortuosity parameter threshold.
E21B 49/08 - Obtaining fluid samples or testing fluids, in 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
79.
SENSOR AND METHOD FOR DETERMINING FRACTIONS OF OIL, WATER, AND SOLIDS IN DRILLING FLUID IN REAL TIME
An apparatus for estimating an oil, water, and solids fraction of a drilling fluid includes a conduit containing the drilling fluid, an electromagnetic sensor in communication with the drilling fluid that senses a combined water and solids fraction, and at least one of a conductivity sensor or a density sensor, each in communication with the drilling fluid. The apparatus also includes a processing system determining the fraction of oil, water, and solids in the drilling fluid using the combined water and solid fraction and at least one of the conductivity value from the conductivity sensor or the density value from the density sensor and a controller coupled to the processing system, the controller having an output coupled to a drilling fluid additive control device controlling an additive to be added to the drilling fluid based on the fraction of oil, water, and solids of the drilling fluid.
G01V 3/30 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with electromagnetic waves
G01V 3/28 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device using induction coils
E21B 47/13 - 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 by electromagnetic energy, e.g. of radio frequency range
E21B 49/08 - Obtaining fluid samples or testing fluids, in 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
80.
WATER-BASED DEMULSIFER FORMULATION WITH ENHANCED CORROSION INHIBITION PROPERTY
A water-based demulsifier includes two or more demulsifying resins, a surfactant, a hydrophilic linker, and a base solvent, which is water. In various embodiments, the two or more demulsifying resins include acid-catalyzed alkoxylated alkylphenol resins, base-catalyzed alkoxylated alkylphenol resins, polyol resins, and diepoxide resins. In one aspect, a method of using a water-based demulsifier with a desalter includes the steps of providing the water-based demulsifier and applying it at the desalter, where the water-based demulsifier includes an acid-catalyzed alkoxylated alkylphenol resin, a base-catalyzed alkoxylated alkylphenol resin, a surfactant, a hydrophilic linker, and a base solvent. In yet another aspect, a water-based demulsifier includes two or more demulsifying resins, a surfactant, a hydrophilic linker, and water as a base solvent, where the hydrophilic linker includes a C3-C18 branched linker, which may be a branched alkyl alcohol, a branched glycol, or a branched alkyl glycerin.
A water-based demulsifier includes two or more demulsifying resins, a surfactant, a hydrophilic linker, and a base solvent, which is water. In various embodiments, the two or more demulsifying resins include acid-catalyzed alkoxylated alkylphenol resins, base-catalyzed alkoxylated alkylphenol resins, polyol resins, and diepoxide resins. In one aspect, a method of using a water-based demulsifier with a desalter includes the steps of providing the water-based demulsifier and applying it at the desalter, where the water-based demulsifier includes an acid-catalyzed alkoxylated alkylphenol resin, a base-catalyzed alkoxylated alkylphenol resin, a surfactant, a hydrophilic linker, and a base solvent. In yet another aspect, a water-based demulsifier includes two or more demulsifying resins, a surfactant, a hydrophilic linker, and water as a base solvent, where the hydrophilic linker includes a C3-C18 branched linker, which may be a branched alkyl alcohol, a branched glycol, or a branched alkyl glycerin.
An energy harvester, including a cyclical impulse device, and a piezoelectric generator deformably connected to the device. A method for harvesting energy from a flowing fluid including inducing a selected flow regime, causing a cyclical impulse device to cycle based upon the flow regime, and physically deforming a piezoelectric generator with the device. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, and an energy harvester disposed within or as a part of the string.
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
E21B 41/00 - Equipment or details not covered by groups
83.
MECHANICAL STOP ARRANGEMENT FOR A BOREHOLE TUBULAR TO LOCATE AND RESTRAIN A BOREHOLE TOOL TO AN OUTSIDE DIAMETER OF THE TUBULAR, METHOD, AND SYSTEM
A mechanical stop arrangement includes a first coupler having a tool connection segment, and an arrangement connection segment, a second coupler having a first connection segment connectable with the arrangement connection section, and a frustoconical inside diameter surface, and a wedge having a radially outside surface angle that is complementary to the frustoconical inside diameter surface. A method for connecting a borehole tool to an outside surface of a tubular, including connecting the borehole tool to a first coupler either before or after disposing the coupler on the tubular, disposing the first coupler on the tubular, disposing a wedge on the tubular, disposing a second coupler on the tubular, interconnecting the first coupler and the second coupler, and jamming the wedge against the tubular with the interconnecting. A wellbore system, including a borehole, a string in the borehole, and an arrangement, disposed within or as a part of the string.
An energy harvester arrangement including a housing, a port in the housing, a first member whose position relative to the housing depends upon a Bernoulli effect on the member from a fluid flow through the port, and a piezoelectric voltage generator operably connected to the member. A method for generating electricity, comprising flowing a fluid past a member, the fluid creating pressure change dependent upon flow velocity, causing a movement of the member by the pressure change, physically deforming a piezoelectric generator with the movement, and generating a voltage with the deforming. A system including a structure having a flow path for a fluid, an energy harvesting arrangement, disposed within at least a portion of the flow path. A borehole system, including a borehole in a subsurface formation, a string in the borehole, and an arrangement disposed within or as a apart of the string.
H02N 2/18 - Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
H10N 30/30 - Piezoelectric or electrostrictive devices with mechanical input and electrical output, e.g. functioning as generators or sensors
85.
MECHANICAL STOP ARRANGEMENT FOR A BOREHOLE TUBULAR TO LOCATE AND RESTRAIN A BOREHOLE TOOL TO AN OUTSIDE DIAMETER OF THE TUBULAR, METHOD, AND SYSTEM
A mechanical stop arrangement includes a first coupler having a tool connection segment, and an arrangement connection segment, a second coupler having a first connection segment connectable with the arrangement connection section, and a frustoconical inside diameter surface, and a wedge having a radially outside surface angle that is complementary to the frustoconical inside diameter surface. A method for connecting a borehole tool to an outside surface of a tubular, including connecting the borehole tool to a first coupler either before or after disposing the coupler on the tubular, disposing the first coupler on the tubular, disposing a wedge on the tubular, disposing a second coupler on the tubular, interconnecting the first coupler and the second coupler, and jamming the wedge against the tubular with the interconnecting. A wellbore system, including a borehole, a string in the borehole, and an arrangement, disposed within or as a part of the string.
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
An inflow control device, including an upstream flow control structure configured to induce water droplet collisions, and a downstream flow control structure disposed downstream of the upstream flow control structure and comprising a channel formed therethrough. A method of controlling flow including flowing a fluid from a source to a destination through an inflow control device comprising an upstream flow control structure and a downstream flow control structure disposed downstream of the upstream flow control structure and comprising a channel formed therethrough, and inducing water droplet collisions in the upstream flow control structure. A wellbore system including a borehole in a subsurface formation, a string disposed in the borehole, and the inflow control device, disposed within or as part of the string.
An apparatus for estimating an oil, water, and solids fraction of a drilling fluid includes a conduit containing the drilling fluid, an electromagnetic sensor in communication with the drilling fluid that senses a combined water and solids fraction, and at least one of a conductivity sensor or a density sensor, each in communication with the drilling fluid. The apparatus also includes a processing system determining the fraction of oil, water, and solids in the drilling fluid using the combined water and solid fraction and at least one of the conductivity value from the conductivity sensor or the density value from the density sensor and a controller coupled to the processing system, the controller having an output coupled to a drilling fluid additive control device controlling an additive to be added to the drilling fluid based on the fraction of oil, water, and solids of the drilling fluid.
G01N 9/32 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by using flow properties of fluids, e.g. flow through tubes or apertures
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
G01N 27/74 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables of fluids
A slip subsystem, including a slip having wickers angled in a first direction and wickers angled in a second direction opposite the first direction, an engager disposed adjacent the slip to selectively engage the wickers, and a biaser to bias the engager into engagement with the wickers. An anchor including a housing having a slip ramp, a drive plate, a power spring to bias the drive plate, a slip subsystem operably connected with the housing. A method for setting an anchor in a borehole, including driving a drive plate into a slip, forcing the slip to climb a housing, engaging an activation block with the slip to prevent slip movement relative to the housing in an anti-setting direction. A borehole system, including a borehole in a subsurface formation, a string in the borehole, and a slip subsystem disposed within or as a part of the string.
A slip subsystem, including a slip having wickers angled in a first direction and wickers angled in a second direction opposite the first direction, an engager disposed adjacent the slip to selectively engage the wickers, and a biaser to bias the engager into engagement with the wickers. An anchor including a housing having a slip ramp, a drive plate, a power spring to bias the drive plate, a slip subsystem operably connected with the housing. A method for setting an anchor in a borehole, including driving a drive plate into a slip, forcing the slip to climb a housing, engaging an activation block with the slip to prevent slip movement relative to the housing in an anti-setting direction. A borehole system, including a borehole in a subsurface formation, a string in the borehole, and a slip subsystem disposed within or as a part of the string.
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
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
A wet connect, including a first component having a first signal conductor, a first connector operably connected to the first signal conductor, a second component having a second signal conductor, and a mating connector operably connected to the second signal conductor. A method for wet connecting components including running a second component into connection with a first component without orienting the second component to the first component. A wellbore system, including a borehole in a subsurface formation, a string in the borehole, a wet connect, disposed within or as a part of the string.
A work string and a method of performing an operation in a borehole. The work string includes a milling section for milling a borehole and a packer section that includes a packer and a cover that protects the packer from the borehole. A section of the borehole is milled with the milling section. The packer is moved axially from under the cover to expose the packer to the borehole. The packer is expanded.
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 34/14 - Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
92.
SYSTEM AND METHODS FOR DETERMINING GEL BREAKING TIME OF THIXOTROPIC DRILLING FLUIDS
The behavior of gelled drilling fluids can be predicted with a low number of input parameters using an empirically derived equation that expresses the breakage of gelled drilling fluids as a function of the total strain applied to the gelled drilling fluids. Using correlative systems and lab-scale experiments, a predictive model correlates the various test input parameters with an anticipated time for breaking the gelled drilling fluid under known strain rate. Applying actual input parameters to the predictive model for a given well drilling operation produces a prescribed gel breaking procedure. The systems and methods disclosed herein provide an operator with accurate predictions of the time necessary' to break a given gelled drilling fluid. The models and methods disclosed herein can be incorporated into a control system so the drilling rig can automatically adjust its operation to most effectively break the gelled drilling fluid following a pump-off event.
The behavior of gelled drilling fluids can be predicted with a low number of input parameters using an empirically derived equation that expresses the breakage of gelled drilling fluids as a function of the total strain applied to the gelled drilling fluids. Using correlative systems and lab-scale experiments, a predictive model correlates the various test input parameters with an anticipated time for breaking the gelled drilling fluid under known strain rate. Applying actual input parameters to the predictive model for a given well drilling operation produces a prescribed gel breaking procedure. The systems and methods disclosed herein provide an operator with accurate predictions of the time necessary to break a given gelled drilling fluid. The models and methods disclosed herein can be incorporated into a control system so the drilling rig can automatically adjust its operation to most effectively break the gelled drilling fluid following a pump-off event.
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
An environmentally friendly biocide is disclosed for managing microbe levels. The environmentally friendly biocide includes a quaternized amine of the structure:
An environmentally friendly biocide is disclosed for managing microbe levels. The environmentally friendly biocide includes a quaternized amine of the structure:
An environmentally friendly biocide is disclosed for managing microbe levels. The environmentally friendly biocide includes a quaternized amine of the structure:
where X is chlorine, R1 is a C16-C18 group, R2 is a C16-C18 group, and n is within the range of 8 to 50. The environmentally friendly biocide optionally includes a solvent component. In one aspect, a method is disclosed for treating an oilfield system with an environmentally friendly biocide, where the method includes the steps of obtaining the environmentally friendly biocide and contacting the oilfield system with it. In yet another aspect, a method is disclosed for managing microbe levels in an oilfield system. The method involves obtaining an environmentally friendly biocide, introducing a first treatment of the environmentally friendly biocide into the oilfield system, and introducing a second treatment of the environmentally friendly biocide into the oilfield system.
A01N 37/44 - Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio-analogue, or a derivative thereof, and a nitrogen atom attached to the same carbon skeleton by a single or double bond, this nitrogen atom not being a member of a derivative or of a thio-analogue of a carboxylic group, e.g. amino-carboxylic acids
C02F 1/50 - Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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
C07C 227/02 - Formation of carboxyl groups in compounds containing amino groups, e.g. by oxidation of amino alcohols
C07C 229/12 - Compounds containing amino and carboxyl groups bound to the same carbon skeleton having amino and carboxyl groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one amino and one carboxyl group bound to the carbon skeleton the nitrogen atom of the amino group being further bound to acyclic carbon atoms or to carbon atoms of rings other than six-membered aromatic rings to carbon atoms of acyclic carbon skeletons
C09K 8/60 - Compositions for stimulating production by acting on the underground formation
95.
SECTION MILLING, UNDER REAMING AND SETTING AN INFLATABLE PLUG IN ONE RUN
A work string and a method of performing an operation in a borehole. The work string includes a milling section for milling a borehole and a packer section that includes a packer and a cover that protects the packer from the borehole. A section of the borehole is milled with the milling section. The packer is moved axially from under the cover to expose the packer to the borehole. The packer is expanded.
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 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
An energy harvester arrangement including a housing, a port in the housing, a first member whose position relative to the housing depends upon a Bernoulli effect on the member from a fluid flow through the port, and a piezoelectric voltage generator operably connected to the member. A method for generating electricity, comprising flowing a fluid past a member, the fluid creating pressure change dependent upon flow velocity, causing a movement of the member by the pressure change, physically deforming a piezoelectric generator with the movement, and generating a voltage with the deforming. A system including a structure having a flow path for a fluid, an energy harvesting arrangement, disposed within at least a portion of the flow path. A borehole system, including a borehole in a subsurface formation, a string in the borehole, and an arrangement disposed within or as a apart of the string.
1161821618 18 group, and n is within the range of 8 to 50. The environmentally friendly biocide optionally includes a solvent component. In one aspect, a method is disclosed for treating an oilfield system with an environmentally friendly biocide, where the method includes the steps of obtaining the environmentally friendly biocide and contacting the oilfield system with it. In yet another aspect, a method is disclosed for managing microbe levels in an oilfield system. The method involves obtaining an environmentally friendly biocide, introducing a first treatment of the environmentally friendly biocide into the oilfield system, and introducing a second treatment of the environmentally friendly biocide into the oilfield system.
A01N 25/02 - Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of applicationSubstances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
A01P 1/00 - DisinfectantsAntimicrobial compounds or mixtures thereof
98.
ENHANCED SPINE-AND-RIB PROCESS FOR EVALUATION OF FORMATION DENSITY
Methods for determining formation density of downhole formations include obtaining first density data (ρSS) using a short-spaced detector configured to detect reflections of a signal transmitted into the downhole formation, obtaining second density data (ρLS) using a long-spaced detector configured to detect reflections of the transmitted signal from the downhole formation, wherein the long-spaced detector is located a greater distance from a source than the short-spaced detector, and determining if a measured data point based on ρSS and ρLS falls within a unity area of a spine-and-rib plot. When the measured data point falls within the unity area, the formation density using a first mathematical relationship is determined and when the measured data point falls outside the unity area, the formation density using a second mathematical relationship different from the first mathematical relationship is determined.
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
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 5/08 - Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity specially adapted for well-logging using primary nuclear radiation sources or X-rays
An inflow control device includes a first flow control structure that is porous and forms differing flowpaths for water and oil. A method of controlling flow includes flowing a fluid from a source to a destination through the inflow control device, and controlling flow via the first flow control structure such that oil flows through the inflow control device more easily than water. A method of controlling flow includes flowing a fluid from a source to a destination through the inflow control device, and flowing a portion of water in the fluid through the first flow control structure to impinge on an upstream surface of the second flow control structure. A wellbore system includes a borehole in a subsurface formation, a string disposed in the borehole, and the inflow control device disposed within or as part of the string.
A completion string, including an upper completion having a shifting tool, and a lower completion having a hydraulic releaser and a valve responsive to the shifting tool. A method for completing a well, including running the completion string in a borehole, establishing pressure integrity, applying tubing pressure to release the hydraulic releaser, and shifting the valve. A method for completing a well, including running an upper completion connected to a lower completion into a borehole, releasing a hydraulic releaser with applied tubing pressure, and shifting a valve in the lower completion with movement of the upper completion. A wellbore system, including a borehole in a subsurface formation, an upper completion and a lower completion in the borehole, a hydraulic releaser connecting the upper completion to the lower completion, the hydraulic releaser being responsive to applied tubing pressure to releaser the upper completion from the lower completion.
E21B 34/12 - Valve arrangements for boreholes or wells in wells operated by movement of casings or tubings
E21B 23/04 - Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
patents
