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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13966. Отображено 100.
19-01-2012 дата публикации

Irregularly Shaped Flapper Closure and Sealing Surfaces

Номер: US20120012202A1
Автор: Roddie Robert Smith, Serge Garay
Принадлежит: Weatherford Lamb Inc

A flapper valve for a surface controlled, sub-surface safety valve has a seat and a curved flapper. The seat has a seating rim, and the curved flapper has a sealing rim and can pivot relative to the seat. The flapper's sealing rim corresponds in shape to the seating rim. Both rims have lobes disposed outside a circular perimeter. Also, the undulating edges of the rims have corresponding outcroppings and incroppings. When a flow tube moves towards or away from the flapper, the flapper's lobes protect the flapper's sealing rim as the flapper's inside surface engages the moving flow tube. Moreover, the rims can have a groove and a ridge that engage one another when the rims close.

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Номер записи: 1
26-01-2012 дата публикации

Liner hanger fluid diverter tool and related methods

Номер: US20120018172A1
Автор: Asif Javed
Принадлежит: Smith International Inc

A downhole fluid diverter tool includes a tool body having a central bore therethrough and a bypass port formed in an outer diameter thereof, a spring-biased piston disposed within the tool body, a piston port in the spring-biased piston configured to axially align with the bypass port to control fluid flow outward from the central bore, and a rotatable ball valve aligned within the central bore of the tool body and configured to control fluid flow through the central bore, wherein the bypass port and the ball valve are configured to be cycled multiple times between open and closed positions while in a wellbore.

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Номер записи: 2
23-02-2012 дата публикации

Blapper valve tools and related methods

Номер: US20120043092A1
Автор: Napoleon Arizmendi, JR., Richard Paul Rubbo
Принадлежит: Arizmendi Jr Napoleon, Richard Paul Rubbo

Various embodiments of the present invention disclose enhanced and improved well production tools for increasing the stability of production zones in a wellbore. Various embodiments of the present invention generally relate to apparatuses, systems, and processes for efficiently and effectively isolating zones within a wellbore.

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Номер записи: 3
08-03-2012 дата публикации

Arrangement of Isolation Sleeve and Cluster Sleeves Having Pressure Chambers

Номер: US20120055684A1
Автор: Cesar G. Garcia, David Ward, Patrick J. Zimmerman
Принадлежит: Weatherford Lamb Inc

For wellbore fluid treatment, sliding sleeves deploy on tubing in a wellbore annulus. Operators deploy a plug down the tubing to a first sleeve. The plug seats in this first sleeve, and pumped fluid pressure opens the first sleeve and communicates from the tubing to the wellbore annulus. In the annulus, the fluid pressure creates a pressure differential between the wellbore annulus pressure and a pressure chamber on second sleeves on the tubing. The resulting pressure differential opens the second sleeves so that fluid pressure from the tubing can communicate through the second open sleeves. Using this arrangement, one sleeve can be opened in a cluster of sleeves without opening all of them at the same time. The deployed plug is only required to open the fluid pressure to the annulus by opening the first sleeve. The pressure chambers actuate the second sleeves to open up the tubing to the annulus.

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Номер записи: 4
26-04-2012 дата публикации

Fracturing System and Method

Номер: US20120097397A1
Автор: Daniel Jesus Rojas, Raymond Hofman, Steve Jackson, William Sloane Muscroft
Принадлежит: Individual

A system and method for fracturing a stage of a multiple stage hydrocarbon production well. One embodiment of the system comprises at least one ported sleeve assembly and a flapper assembly positioned downwell of the ported sleeve assembly. Each ported sleeve assembly comprises a ported housing having a plurality of ports disposed radially therethrough; a first sleeve at least partially within the ported housing and moveable between a first position and a second position, wherein in the first position the first sleeve is radially positioned between the plurality of ports and the flowpath. The first sleeve has an exterior surface, a first slot formed in the first exterior surface, and a first engagement surface having a first inner diameter. A first guiding member is fixed relative to the ported housing and positionable within the first slot. A first compression spring positioned between the a upper end of the first sleeve and the ported housing, the first compression spring being under compression when the first sleeve is in the first position. The flapper assembly comprises a flapper seal; a flapper plate rotatable between an opened position and a closed position, wherein in the opened position fluid flow in the downwell direction through the flapper seal is at least substantially unimpeded, and wherein in the closed position the flapper plate is engaged against the flapper seal to at least substantially prevent fluid flow through the flapper seal in the downwell direction; a second sleeve moveable between a first position and a second position, wherein in the first position at least a portion of the second sleeve is radially positioned between the flapper plate and the flowpath, the second sleeve having a second exterior surface, a second slot formed in the second exterior surface, and a second engagement surface having a second inner diameter; a second guiding member fixed relative to the flapper seal and positionable within the second walking jay slot; and a ...

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Номер записи: 5
14-06-2012 дата публикации

Bottom set downhole plug

Номер: US20120145378A1
Автор: W. Lynn Frazier
Принадлежит: Individual

A plug for isolating a wellbore. The plug can include a body having a first end and a second end, wherein the body is formed from one or more composite materials and adapted to receive a setting tool through the first end thereof, at least one malleable element disposed about the body, at least one slip disposed about the body, at least one conical member disposed about the body, and one or more shearable threads disposed on an inner surface of the body, adjacent the second end thereof, wherein the one or more shearable threads are adapted to receive at least a portion of a setting tool that enters the body through the first end thereof, and wherein the one or more shearable threads are adapted to engage the setting tool when disposed through the body and adapted to release the setting tool when exposed to a predetermined axial force.

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Номер записи: 6
12-07-2012 дата публикации

Low Equivalent Circulation Density Setting Tool

Номер: US20120175132A1
Автор: Brock Watson, Daniel MOELLER, Kevin J. Miller
Принадлежит: Halliburton Energy Services Inc

A downhole oilfield tool assembly is provided. The tool assembly comprises a mandrel, a valve oriented to block downwards flow through the mandrel in a closed position, a first piston located above the valve and at least partly around an outside of the mandrel. The first piston is configured to develop motive force from a pressure differential between an interior of the mandrel and an exterior of the downhole oilfield tool assembly.

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Номер записи: 7
19-07-2012 дата публикации

Rotational test valve with tension reset

Номер: US20120181021A1
Автор: Charles Frederick Carder, Paul David Ringgenberg
Принадлежит: Halliburton Energy Services Inc

According to one embodiment, a rotationally activated downhole well valve for connection in a tubing string is disclosed that can be repeatedly opened and closed selectively to place the tubing string in communication with the annulus. The valve is moved between the closed position and the open position by rotating the string in the first direction. In another embodiment, the valve is opened and closed by rotating the string in the first direction and is reset in the closed position by lifting and lowering the tubing string.

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Номер записи: 8
16-08-2012 дата публикации

Flapper Valve

Номер: US20120205116A1
Автор: Bulent Finci, Jaime Pedraza, Jonathan Macrae, Mark SCHIEL, Robert Crispin Porter
Принадлежит: ThruBit BV

A flapper valve includes a valve body, a valve cover pivotally coupled to the valve body at a hinge between an open and closed position, and a biasing element biasing the valve cover to the closed position. The valve cover includes an interior face comprising a sealing surface and a boss including a face surrounded by a beveled edge joining the boss with the sealing surface.

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Номер записи: 9
13-09-2012 дата публикации

Selective dart system for actuating downhole tools and methods of using same

Номер: US20120227980A1
Автор: Peter J. Fay
Принадлежит: Individual

Plug element systems comprise a tubular member having at least two seats. An eccentrically-shaped plug member comprises an upper end portion and a lower end portion. The upper end portion comprises an upper end diameter can be less than, greater than, or equal to a lower end portion diameter of the lower end portion. The eccentric shape of the plug member permits it to pass through a first seat and land on a second seat comprising a second seat length where both the first seat and the second seat comprise substantially equal inner seat diameters.

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Номер записи: 10
20-09-2012 дата публикации

High pressure coring assembly and method

Номер: US20120234607A1
Автор: Douglas Kinsella
Принадлежит: QCS TECHNOLOGIES

A wireline or drill pipe retrievable coring tool with an inner barrel to receive a core, a bottom coring tool valve operable to seal off a bottom of the inner barrel and at least one pressure canister operable to receive fluid from the core in the inner barrel. The pressure canister is operable to significantly reduce the pressure inside the inner barrel utilizing an expandable chamber to receive fluid from the core as the tool is removed from the wellbore. In one embodiment, a bottom valve mechanism moves the cored formation materials out of the way of the bottom valve before the bottom valve is closed.

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Номер записи: 11
08-11-2012 дата публикации

Downhole Tool

Номер: US20120279723A1
Автор: Raymond Hofman, William Sloane Muscroft
Принадлежит: Peak Completion Technologies Inc

A downhole tool comprising an inner sleeve with a plurality of sleeve ports and a housing positioned radially outwardly of the inner sleeve and having a plurality of housing ports, with the housing and inner sleeve partially defining a space radially therebetween. The space is occupied by a shifting sleeve. A fluid path extends between the interior flowpath of the tool and the space. A fluid control device, occupies at least portion of the fluid path, and may selectively permit fluid flow, and thus pressure communication, into the space to cause a differential pressure across the shifting sleeve. When a sufficient differential pressure is reached, the shifting sleeve is moved from a first position to a second position, which opens the communication paths through the housing and sleeve ports between the interior flowpath and exterior of the tool.

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Номер записи: 12
22-11-2012 дата публикации

Mobile pressure optimization unit for drilling operations

Номер: US20120292108A1
Автор: Derrick W. Lewis, James R. LOVORN, Malcolm E. WHITTAKER
Принадлежит: Halliburton Energy Services Inc

A well drilling method can include transporting a pressure optimization unit to a rig site, the pressure optimization unit including a choke manifold, a control system which automatically controls operation of the choke manifold, and a flowmeter which measures flow of drilling fluid through the choke manifold, and then interconnecting the pressure optimization unit to rig drilling equipment. A pressure optimization unit for use with a well drilling system can include a choke manifold, a control system which automatically controls operation of the choke manifold, and a flowmeter which measures flow of drilling fluid through the choke manifold. The choke manifold, control system and flowmeter may be incorporated into a same conveyance which transports the pressure optimization unit to a rig site.

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Номер записи: 13
29-11-2012 дата публикации

Differential Pressure Wellbore Tool and Related Methods of Use

Номер: US20120298369A1
Автор: Benton T. Knobloch, JR., David J. Tilley, Todd J. ROY
Принадлежит: Halliburton Energy Services Inc

Disclosed is a power head for connection in a tubing string suspended in a subterranean location in a wellbore for use in methods removing debris from the wellbore. When the power head is in the closed position, well fluids pumped down the tubing string will flow through the power head. When the power head is moved to the open position by dropping a actuator ball onto a seat in the power head, the power head creates flow down along the annulus to circulate debris laden well fluids into a catch apparatus such as a catch basket or screen. In the open position, nozzles and the eductor create the reverse flow.

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Номер записи: 14
06-12-2012 дата публикации

Method of reducing deflection through a rod piston in a subsurface safety valve

Номер: US20120304853A1
Автор: Anthony S. Coghill, Brock Alan Peoples, David Z. Anderson, Doug A. Lowry, Grant R. Thompson, James T. Sloan, John E. Burris
Принадлежит: Baker Hughes Inc

An actuation assembly including a sleeve member having a radially outwardly extending projection and a piston having an axis, the piston operatively coupled to the projection of the sleeve member and arranged to exert an actuation force on the projection of the sleeve member for actuating the sleeve member, the actuation force positioned about radially aligned with the axis or radially outwardly from the axis.

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Номер записи: 15
06-12-2012 дата публикации

Wellbore valve assembly

Номер: US20120305257A1
Автор: Amr Salama Mohamed Salem GOWEILY, David Bell CONNER
Принадлежит: Individual

A wellbore valve assembly including a valve member which is moveable relative to the valve seat, the valve assembly being receivable in a wellbore tubing having a first end and a second end, the valve member being moveable between an open position relative to the valve seat, and a position in which the valve member is seated against the valve seat, the valve assembly including a valve member biasing device for biasing the valve member towards the open position, the valve member being operable to close in the event of a force which exceeds a predetermined value being applied in either direction relative to the direction in which the valve member biasing device acts.

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Номер записи: 16
13-12-2012 дата публикации

Optimization of dynamically changing downhole tool settings

Номер: US20120316787A1
Автор: David P. Moran, Stuart R. Oliver
Принадлежит: Smith International Inc

A computer-assisted method for optimizing a drilling tool assembly, the method comprising defining a desired drilling plan; determining current drilling conditions; determining current drilling tool parameters of at least two drilling tool assembly components; analyzing the current drilling conditions and the current drilling tool parameters to define a base drilling condition; comparing the base drilling condition to the desired drilling plan; determining a drilling tool parameter to adjust to achieve the desired drilling plan; and adjusting at least one drilling tool parameter of at least one of the two drilling tool assembly components based on the comparing the base drilling condition to the desired drilling plan.

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Номер записи: 17
27-12-2012 дата публикации

Well-based fluid communication control assembly

Номер: US20120325500A1
Автор: Terje Moen
Принадлежит: Schlumberger Technology Corp

An apparatus includes a base pipe, a screen and a first assembly. The screen at least partially circumscribes the base pipe to create a flow path between a first region that is outside of the screen and a second region that is inside the base pipe. The flow path includes at least one radial port of the base pipe and a third region between the screen and the exterior of the base pipe. The first assembly regulates fluid communication through the flow path. The first assembly includes a second assembly that is disposed in and mounted to the base pipe and a flow control device that is slidably connected to the second assembly. The flow control device is adapted to translate between at least two positions to regulate the fluid communication through the flow path.

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Номер записи: 18
17-01-2013 дата публикации

Multi-Zone Screened Frac System

Номер: US20130014953A1
Автор: Ronald van Petegem
Принадлежит: Weatherford Lamb Inc

A multi-zone screened frac system combines screens with integrated check valves, frac valves, and optional shunt tubes for slurry dehydration. The system can also include fiber optic technology. In particular, the system uses sliding sleeves and flow devices for each section. The sliding sleeves open with dropped balls or a service tool, and the flow devices have screens and act as check valves. Dehydration tubes can also be used. The system does not require a crossover tool, and in some implementations, the system does not even require a complete service tool.

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Номер записи: 19
31-01-2013 дата публикации

Self Piloted Check Valve

Номер: US20130025711A1
Автор: Larry Rayner Russell
Принадлежит: Individual

A self piloted check valve which utilizes closure of a piloting flapper valve to permit development of closure forces for a ball valve. The normally open ball valve has a central flow passage and simultaneously rotates and translates as it traverses between its fully open and fully closed positions. An opening bias system utilizes a combination of a first less stiff spring and a second stiffer spring. Reversible decoupling means disconnects and reconnects the second spring at a short travel distance from the normally open position of the ball, white the first spring always provides opening bias forces to the ball. The pressure induced force required to fully close the ball valve following decoupling of the second spring is more than the force required to overcome the combination of the first and second springs.

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Номер записи: 20
31-01-2013 дата публикации

Wellbore knock-out chamber and related methods of use

Номер: US20130025865A1
Автор: Benton T. Knobloch, JR., David J. Tilley, Todd J. ROY
Принадлежит: Halliburton Energy Services Inc

Disclosed is a downhole knock-out tool ( 900 ) for use in a tubing string ( 702 ) with a power head ( 704 ) for creating reverse flow. The tool has a cylindrical housing ( 910 ) with an inner tube ( 920 ) in the housing directing well fluids against a knock-out ( 940 ) or deflector cone to accumulate debris in the annulus ( 926 ) formed between the housing and tube.

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Номер записи: 21
28-02-2013 дата публикации

Downhole tool and method of use

Номер: US20130048271A1
Автор: Duke Vanlue
Принадлежит: Individual

Embodiments of the disclosure pertain to a composite slip for a downhole tool, the composite slip having a circular slip body having one-piece configuration with at least partial connectivity around the entire circular slip body, and at least two grooves disposed therein. In aspects, the slip body may be made from one of filament wound material, fiberglass cloth wound material, and molded fiberglass composite.

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Номер записи: 22
28-02-2013 дата публикации

System and method for servicing a wellbore

Номер: US20130048298A1
Автор: Jesse Cale PORTER, Matt T. Howell, Matthew James MERRON
Принадлежит: Halliburton Energy Services Inc

A wellbore servicing apparatus, comprising a housing defining an axial flowbore and comprising ports, a first sleeve, a second sleeve movable relative to the housing from (a) a first position in which the second sleeve obstructs fluid communication via the ports of the housing to (b) a second position in which the second sleeve allows fluid communication via the ports of the housing, and wherein the first sleeve is movable relative to the housing from (a) a first position in which the first sleeve does not allow a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position to (b) a second position in which the first sleeve allows a fluid pressure applied to the axial flowbore to move the second sleeve from the first position to the second position, and an expandable seat.

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Номер записи: 23
07-03-2013 дата публикации

Valve for hydraulic fracturing through cement outside casing

Номер: US20130056220A1
Автор: Michael T. Sommers, Stephen L. Jackson
Принадлежит: Team Oil Tools LP

A valve includes: a housing; a mandrel disposed in the housing; a rupture disk disposed in a passageway of the mandrel; a sliding sleeve disposed between the housing and the mandrel; and a ball seat disposed in the mandrel. A method for actuating a valve includes: flowing a fluid through the valve; dropping a ball; seating the ball in the ball seat and blocking fluid flow through the mandrel; flowing fluid through the passageway to the sliding sleeve; moving the sliding sleeve axially within the valve; and exiting fluid through the openings of the housing and mandrel. A valve includes: a housing having an opening; a mandrel disposed in the housing; a sliding sleeve disposed between the housing and the mandrel; and a ball seat disposed in the mandrel blocking fluid communication between the mandrel and the passageway.

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Номер записи: 24
14-03-2013 дата публикации

Minimal travel flow control device

Номер: US20130062071A1
Автор: David James Biddick, Gary L. Rytlewski, Russell Alan Johnston, Stephen Dennis Parks
Принадлежит: Schlumberger Technology Corp

A technique facilitates controlling flow in a wellbore with a simplified valve. The design of the valve also enables reduction in the overall length of the valve to improve spatial considerations. The valve comprises a valve component, e.g. a flapper, movable between a closed position and an open position. A flow tube is designed to selectively open the valve component with reduced travel, thus enabling a shortened flow tube. The short flow tube enables use of valve housings, springs, and other valve components having a reduced length.

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Номер записи: 25
21-03-2013 дата публикации

Method and apparatus for wellbore fluid treatment

Номер: US20130068484A1
Автор: Daniel Jon Themig, Jim Fehr
Принадлежит: Packers Plus Energy Services Inc

A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing string wall. The closures are openable by a sleeve drivable through the tubing string inner bore.

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Номер записи: 26
28-03-2013 дата публикации

Debris Barrier for Hydraulic Disconnect Tools

Номер: US20130075110A1
Автор: Greg Marshall, Joel D. Shaw
Принадлежит: Halliburton Energy Services Inc

A hydraulic connection mechanism for use in a wellbore comprises an upper connection tool, a lower connection tool configured to engage the upper connection tool and form a fluid communication pathway through the hydraulic connection mechanism, and a debris barrier disposed in the fluid communication pathway. The debris barrier comprises a body element, and a spring element configured to maintain the body element in a closed position when the upper connection tool is disengaged from the lower connection tool.

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Номер записи: 27
11-04-2013 дата публикации

Expandable apparatus and related methods

Номер: US20130087386A1
Автор: Anurag Gautam, Daryl L. Pritchard, Kelly D. Ireland, Matthew D. Mumma, Robert A. Laing, Steven R. Radford
Принадлежит: Baker Hughes Inc

An expandable reamer apparatus and methods for reaming a borehole, wherein a laterally movable blade carried by a tubular body may be selectively positioned at an inward position and an expanded position. The laterally movable blade, held inwardly by blade-biasing elements, may be forced outwardly by drilling fluid selectively allowed to communicate therewith by way of an actuation sleeve disposed within the tubular body. Alternatively, a separation element may transmit force or pressure from the drilling fluid to the movable blade. Further, a chamber in communication with the movable blade may be pressurized by way of a downhole turbine or pump. A ridged seal wiper, compensator, movable bearing pad, fixed bearing pad preceding the movable blade, or adjustable spacer element to alter expanded blade position may be included within the expandable reamer. In addition, a drilling fluid pressure response indicating an operational characteristic of the expandable reamer may be generated.

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Номер записи: 28
09-05-2013 дата публикации

Circulation sub and method for using same

Номер: US20130112428A1
Автор: Andrew Shelton, James William Weir
Принадлежит: National Oilwell Varco LP

Techniques for continuously circulating fluid into a drill string are provided. These techniques involve a circulation sub ( 108 ) including a tubular and a diverter valve ( 200 A). The tubular has a first end connectable to the drill string, a second end connectable to a pipe segment, and a port ( 220 ) therein. The tubular has a fluid path ( 202 ) for allowing the fluid to flow from the pipe segment to the drill string and a circulation path ( 204 ) for allowing the fluid to flow from the port to the drill string. The diverter valve has a channel therethrough in selective fluid communication with the fluid path. The diverter valve is positionable between a flow through position for selectively allowing the fluid to flow through the fluid path and a diversion position for selectively allowing the fluid to flow through the circulation path whereby the fluid may continuously flow through the drill string.

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Номер записи: 29
23-05-2013 дата публикации

Reactive choke for automatic wellbore fluid management and methods of using same

Номер: US20130126184A1
Автор: Anil K. Sadana, David P. Gerrard
Принадлежит: Individual

Fluid actuated chokes comprise an expandable material that expands due to an undesired fluid coming in contact with the choke. The choke includes one or more passageways through which desired fluids from a well flow unimpeded. The choke is disposed in a downhole tool as part of a downhole completion. When one or more undesired fluids enters a production stream flowing through the downhole completion and, thus, the downhole tool, and contacts the choke, the expandable material expands causing fluid flow through the passageway(s) to be restricted and, in some cases, completely closed off. Thus, the choke automatically detects and reacts, i.e., restricts fluid flow through the choke, when contacted by the undesired fluid(s).

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Номер записи: 30
06-06-2013 дата публикации

Seal With Bellows Type Nose Ring

Номер: US20130140775A1
Автор: Daniel Caleb BENSON, David Lawrence FORD, Jeffrey Allen Raynal
Принадлежит: Vetco Gray LLC

A wellhead assembly having concentric tubulars and a seal assembly in an annulus between the tubulars. The seal assembly includes an upper portion having an annular body with a U-shaped cross section and a nose ring seal. The nose ring seal has a bellows like cross section and provides sealing in the annulus and exerts a lockdown force onto one of the tubulars. Metal inlays are provided on the outer edges of the folds in the bellows and a compressible medium is disposed between the folds.

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Номер записи: 31
08-08-2013 дата публикации

Deep set subsurface safety system

Номер: US20130199791A1
Автор: Robert C. Henschel, Thomas G. Hill, Jr.
Принадлежит: Tejas Research and Engineering LLC

A subsurface safety valve is operable to close a fluid flow path by virtue of an axially movable flow sleeve. The valve includes a recockable linear actuator and a latch mechanism so that the valve can be moved from an open to a closed position as a result of axial movement of the flow sleeve without overcoming the pressure head and frictional forces currently encountered in conventional safety valves.

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Номер записи: 32
15-08-2013 дата публикации

Selectively Corrodible Downhole Article And Method Of Use

Номер: US20130206425A1
Автор: Michael H. Johnson, Oleg A. Mazyar
Принадлежит: Baker Hughes Inc

A selectively corrodible downhole article includes a movable cylindrical member comprising a first section and an axially separated second section, the first section comprising a first material having a first galvanic activity, the second section comprising a second material having a second galvanic activity, the first galvanic activity being greater than the second, the first section being electrically isolated from the second section; and a fixed member disposed on the cylindrical member and configured for electrical contact with the first or second section, the fixed member comprising an intermediate material having an intermediate galvanic activity, the intermediate galvanic activity being intermediate the first and second galvanic activity, the movable cylindrical member configured for movement from a first position where the first section is disposed and in electrical contact with the fixed member and a second position where the second section is disposed and in electrical contact with the fixed member.

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Номер записи: 33
15-08-2013 дата публикации

Seal assembly and method

Номер: US20130206427A1
Автор: Andrew J. Grohmann, Bruce J. Witwer, Larry E. Reimert
Принадлежит: Dril Quip Inc

A seal assembly ( 10 ) is provided for sealing between an interior surface ( 14 ) on a wellhead ( 12 ) and a tapered exterior surface ( 18 ) on a hanger ( 16 ). A unitary seal body ( 20 ) includes an upper portion for engagement with a force tool and a lower portion for sealing with the wellhead and the hanger. A first locking ring ( 24 ) is movable, radially inward for securing the sealing assembly to the hanger, and a second locking ring ( 22 ) is movable radially outward for securing the seal assembly to the wellhead. An actuation member ( 60 ) including a plurality of downward extending fingers passing through slots in the seal body move downward through a portion of the body to force the first and second locking rings into engagement with the wellhead and the hanger.

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Номер записи: 34
12-09-2013 дата публикации

Subsea casing drilling system

Номер: US20130233547A1
Автор: Eric M. Twardowski, II Albert C. Odell, Jose A. TREVINO
Принадлежит: Weatherford Lamb Inc

In one embodiment, a casing bit drive assembly may be used with a casing drilling system. The casing bit drive assembly may include one or more of the following: a retrievable drilling motor; a decoupled casing sub; a releasable coupling between the motor and casing bit; a releasable coupling between the motor and casing; a cement diverter; and a casing bit.

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Номер записи: 35
12-09-2013 дата публикации

Remotely Activated Down Hole Systems and Methods

Номер: US20130233570A1
Автор: Frank V. Acosta, Lonnie HELMS, Nicholas Frederick Budler
Принадлежит: Halliburton Energy Services Inc

Systems and methods for remotely setting a down hole device. The system includes a base pipe having inner and outer radial surfaces and defining one or more pressure ports extending between the inner and outer radial surfaces. An internal sleeve is arranged against the inner radial surface and slidable between a closed position, where the internal sleeve covers the one or more pressure ports, and an open position, where the one or more pressure ports are exposed to an interior of the base pipe. A trigger housing is disposed about the base pipe and defines an atmospheric chamber in fluid communication with the one or more pressure ports. A piston port cover is disposed within the atmospheric chamber and moveable between blocking and exposed positions. A wellbore device is used to engage and move the internal sleeve into the open position by applying predetermined axial force to the internal sleeve.

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Номер записи: 36
26-09-2013 дата публикации

Disposable downhole tool

Номер: US20130248194A1
Автор: Tianping Huang
Принадлежит: Baker Hughes Inc

A disposable downhole tool is disclosed. The tool is suitable for use as a frac tool. The tool includes a housing having an inner wall surface defining a bore. The tool also includes a valve structure disposed within the bore, the valve structure comprising a disposable plug seat, the disposable plug seat comprising a first natural rock material. The disposable tool may also include a disposable plug in fluid sealing engagement with the seat, the plug comprising a second natural rock material, the plug and the plug seat comprising a plug valve. The first and second natural rock materials may include sedimentary rock, such as various forms of limestone, including Carrara marble or Indiana limestone.

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Номер записи: 37
17-10-2013 дата публикации

Method and system for sealing a void in an underground wellbore

Номер: US20130269942A1
Автор: Daniel Joinson, Michael P. Ellem
Принадлежит: Shell Internationale Research Maatschappij BV

Voids ( 14 ) in a underground wellbore ( 1 ) are sealed by:—inserting a corrosion prone object ( 10 A-C, 12 ) in the void injecting an oxidizing agent into the void ( 14 ); and—allowing the oxidizing agent to induce corrosion of the corrosion prone object and to thereby generate corrosion products ( 13 A-E) that are physically larger than the corrosion prone object ( 10 A-C, 12 ) and that seal the void ( 14 ).

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Номер записи: 38
17-10-2013 дата публикации

Apparatus and Method to Remotely Control Fluid Flow in Tubular Strings and Wellbore Annulus

Номер: US20130269951A1
Автор: Abdul Mushawwir KHALIL, Ahmed Moustafa Tahoun, Karam J. Jawamir, Mohammed Abdulmalek Aldheed, Raed Ismail Kafafy
Принадлежит: MIT Innovation Sdn Bhd

A method and apparatus is disclosed for remotely and selectively controlling fluid flow through tubular string disposed within a wellbore and further control fluid flow between the tubular string inner flow passage and the annular flow passage. The present invention further discloses a method of selectively and remotely receiving and interpreting a form of command or information at a desired apparatus within the wellbore caused by the operator on earth surface.

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Номер записи: 39
31-10-2013 дата публикации

Downhole Circulating Valve Having a Seal Plug and Method for Operating Same

Номер: US20130284453A1
Автор: James Dan Vick, Jr., Jimmie Robert Williamson, Robert Lester Thurman, Russell Irving Bayh, III
Принадлежит: Halliburton Energy Services Inc

A downhole circulating valve includes a generally tubular outer housing having a generally axially extending internal passageway. At least one generally longitudinally extending circulating passageway is formed through at least a portion of the housing. At least one exterior port and at least one interior port are in fluid communication with the circulating passageway. At least one seal plug is disposed within the circulating passageway. The seal plug has a first position relative to the housing wherein the seal plug is remote from the exterior port and the interior port, thereby allowing fluid flow between the exterior port and the interior port through the circulating passageway. The seal plug has a second position relative to the housing wherein the seal plug is between the exterior port and the interior port and wherein the seal plug forms at least one metal-to-metal seal with the circulating passageway, thereby preventing fluid flow between the exterior port and the interior port.

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Номер записи: 40
14-11-2013 дата публикации

Seat assembly with counter for isolating fracture zones in a well

Номер: US20130299199A1
Автор: Derek L. Carter, Mark Henry Naedler
Принадлежит: Utex Industries Inc

A specially designed rotary indexing system and associated operational methods are incorporated in a downhole control device, representatively a sliding sleeve valve, having an outer tubular member in which an annular plug seat is coaxially disposed. The plug seat is resiliently expandable between a first diameter and a larger second diameter and is illustratively of a circumferentially segmented construction. The rotary indexing system is operative to detect the number of plug members that pass through and diametrically expand the plug seat, and responsively preclude passage of further plug members therethrough when such number reaches a predetermined magnitude. Such predetermined magnitude is correlated to the total rotation of an indexing system counter ring portion rotationally driven by axial camming forces transmitted to the rotary indexing system by successive plug member passage-generated diametrical expansions of the plug seat.

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Номер записи: 41
05-12-2013 дата публикации

Wellbore isolation while placing valves on production

Номер: US20130319658A1
Автор: Jessica Schulte, Josh Belleville, Michael Huh
Принадлежит: Schlumberger Technology Corp

An internal completion string is anchored within a closed casing valve of a production liner in a wellbore. The internal completion string comprises a packer and a shifting tool. The production liner comprises a casing valve having a port and a moveable member. The annulus defined between the production liner and the internal completion string is sealed, and the shifting tool is remotely operated to move the moveable member away from the port, thereby opening the casing valve.

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Номер записи: 42
05-12-2013 дата публикации

Downhole deployment valves

Номер: US20130319679A1
Автор: David Iblings, David J. Brunnert, David Pavel, Joe Noske, Michael Brian Grayson, Paul L. Smith
Принадлежит: Weatherford Lamb Inc

Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member, such as a flapper, that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.

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Номер записи: 43
19-12-2013 дата публикации

Device for a Valve

Номер: US20130334448A1
Автор: Helge Sverre Eide, Lars Gunnar Hodnefjell
Принадлежит: Blue Logic AS

A device for a valve has a fixed part provided with at least one fluid port and a rotatable sleeve provided with at least one bore. The sleeve is structured in a manner allowing it to rotate the bore in-line with the fluid port in order to allow a fluid to flow through the fluid port and the bore when the sleeve is in an open position. The sleeve is structured in a manner allowing it to rotate the bore away from the fluid port in order not to allow a fluid to flow through the fluid port when the sleeve is in a closed position. The fixed part and the sleeve form an annulus between the fixed part and the sleeve. The annulus is restricted axially by two packer elements in the axial directions of the sleeve and the fixed part, wherein one of the two packer elements is located at one side of the fluid port, and the other of the two packer elements is located at the opposite side of the fluid port, and wherein the annulus is in fluid communication with the fluid port of the fixed part.

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Номер записи: 44
09-01-2014 дата публикации

Low Equivalent Circulation Density Setting Tool

Номер: US20140008080A1
Автор: Brock Watson, Daniel MOELLER, Kevin J. Miller
Принадлежит: Halliburton Energy Services Inc

A downhole oilfield tool assembly comprises a mandrel, a ball valve oriented to block downwards flow through the mandrel in a closed position, a first piston located above the ball valve and at least partly around an outside of the mandrel. The first piston is configured to develop motive force from a pressure differential between an interior of the mandrel and an exterior of the downhole oilfield tool assembly.

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Номер записи: 45
16-01-2014 дата публикации

Opening a conduit cemented in a well

Номер: US20140014362A1
Автор: Joel David Shaw, Paul Robert Terry
Принадлежит: Halliburton Energy Services Inc

A method of opening a conduit cemented in a subterranean well can include flowing a fluid through a passage in the well after the conduit is cemented in the well, and the conduit opening in response to the flow of the fluid through the passage. A well system can include a flow control device cemented in a wellbore, and a conduit positioned adjacent a passage of the flow control device, whereby the conduit opens in response to the passage being opened.

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Номер записи: 46
16-01-2014 дата публикации

Method for exploiting a geological reservoir from a reservoir model matched by the computation of an analytical law of conditional distribution of uncertain parameters of the model

Номер: US20140019108A1
Автор: Mathieu Feraille, Sebastien Da Veiga, Veronique Gervais-Couplet
Принадлежит: IFP Energies Nouvelles IFPEN

The invention is a method for exploiting a geological reservoir to exploit hydrocarbons or provide gas storage. The exploitation is defined on the basis of a reservoir model calibrated relative to dynamic data. The calibration is carried out by computing an objective function for a set of reservoir models. The objective function makes it possible to determine an analytical law of conditional distribution of the uncertain parameters of the model to generate new reservoir models added to the set of reservoir models.

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Номер записи: 47
06-02-2014 дата публикации

Integral Multiple Stage Safety Valves

Номер: US20140034325A1
Автор: Robert A. Jancha, Thomas G. Hill, Jr.
Принадлежит: Tejas Research and Engineering LLC

An integral multistage safety valve is designed to provide a second level of protection should a first stage fail. The valve may be used in oil and/or gas wells. The interior portion of the multiphase safety valve is designed so as to reduce turbulence and pressure loss through the valve when the valve is in an open position. The valves may be independently operable, or operable with a single control line. The multi-stage valve reduces the number of body joints required to construct two identical valves thereby reducing cost and potential leak paths and increasing reliability of the system.

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Номер записи: 48
20-02-2014 дата публикации

Valve with shuttle

Номер: US20140048250A1
Автор: Lawrence Osborne
Принадлежит: Individual

A valve with a shuttle for use in a flow management system is capable of bypassing a backflow.

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Номер записи: 49
06-03-2014 дата публикации

Method and Apparatus for Treating a Well

Номер: US20140060830A1
Автор: Douglas N. Love
Принадлежит: Texian Resources

A method for treating a well includes positioning a seat within the well that is capable of catching an obstruction which will prevent flow of fluid downstream of the seat. According to one embodiment of the invention, the seat is formed by expanding a sleeve with a ring positioned around its periphery or as a subsequent step in the process. As the sleeve is expanded over the ring, the seat is formed. Once the seat is formed, an obstruction in the form of a ball or dart is dropped down to the seat. In another embodiment the sleeve acts as a stop for a secondary valve seat which catches the obstruction. The casing uphole of the seat is perforated so that fluid under pressure will enter the formation surrounding the perforations. The process is particularly useful for fracing a formation in a horizontal well where numerous stages are required to complete the stimulation of the well. There is also potential application in vertical wells.

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Номер записи: 50
13-03-2014 дата публикации

E-ring divot back-out lock

Номер: US20140069646A1
Автор: Baozhi Zhu, Daniel R. Barnhart, Jeffrey A. Raynal, Nicholas P. Gette
Принадлежит: Vetco Gray LLC

An energizing ring can be used to energize a seal. In embodiments, the energizing ring has a recess, or divot, adjacent to a portion of the seal so that if the seal is deformed during a balloon-type failure, a portion of the deformed seal can occupy the recess. The seal, thus, engages surfaces of the recess to prevent axial movement of the energizing ring relative to the seal.

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Номер записи: 51
13-03-2014 дата публикации

Downhole shutoff tool

Номер: US20140069655A1
Автор: Larry Rayner Russell
Принадлежит: Individual

A downhole drilling valve tool, positioned above the drill bit, which utilizes a ball valve having a through bore for normal flow. The ball valve is operated bidirectionally by a piston driven mechanism between an open position and a closed position. The piston mechanism is responsive to a reference accumulator pressure on a first side and the pressure in the apparatus bore above the ball valve on a second side. Whenever the valve apparatus is lowered at least a minimum distance into the well bore, a pressure relief valve is used to maintain a fixed margin between the flowing bore pressure and the accumulator pressure. Closure of the ball valve occurs when the accumulator pressure exceeds the bore pressure during pump stoppages. The downhole drilling valve tool offers a more wear resistant sealing means, as well as higher pressure operability than conventional downhole check valves.

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Номер записи: 52
06-01-2022 дата публикации

MANAGED PRESSURE DRILLING CONTROL SYSTEM WITH CONTINUOUSLY VARIABLE TRANSMISSION

Номер: US20220003072A1
Автор: DILLARD Walter S., NORTHAM Paul R.
Принадлежит:

An apparatus can include a choke with a flow restrictor member having at least two positions, a flow coefficient Cv of the choke with the flow restrictor member in one position being less than with the flow restrictor member in the other position, and an operational device that displaces the flow restrictor member at a variable actuation rate, the actuation rate with the flow restrictor member in one position being less than with the flow restrictor in the other position. A method can include displacing a flow restrictor member, thereby decreasing a flow coefficient Cv of a choke, and decreasing a rate of change of the flow coefficient Cv in response to decreasing the flow coefficient Cv. A drilling system can include a choke with a flow restrictor member, and a continuously variable transmission which causes an actuation rate to vary based on a position of the flow restrictor member. 1. An apparatus for use with a subterranean well , the apparatus comprising:a choke comprising a flow restrictor member having at least first and second positions, a flow coefficient Cv of the choke with the flow restrictor member in the first position being less than the flow coefficient Cv of the choke with the flow restrictor in the second position; andan operational device configured to displace the flow restrictor member between the first and second positions at a variable actuation rate, the actuation rate with the flow restrictor member in the first position being less than the actuation rate with the flow restrictor member in the second position.2. The apparatus of claim 1 , in which the operational device comprises a non-linear transfer mechanism connected between the choke and an actuator.3. The apparatus of claim 2 , in which the non-linear transfer mechanism comprises a continuously variable transmission.4. The apparatus of claim 3 , further comprising a control unit operatively connected to the operational device claim 3 , the control unit comprising a control algorithm ...

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Номер записи: 53
06-01-2022 дата публикации

Isolation valves

Номер: US20220003074A1
Автор: Ashish Sharma, Ganesh Balasubramanian
Принадлежит: Schlumberger Technology Corp

A valve assembly that can be deployed in a subterranean well that includes a valve adapted to selectively isolate a region of the subterranean well, and a separating apparatus. The separating apparatus may further include at least one member being formed from a functional material and at least two sleeves connected by the at least one member.

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Номер записи: 54
06-01-2022 дата публикации

DISSOLVABLE SETTING TOOL FOR HYDRAULIC FRACTURING OPERATIONS

Номер: US20220003096A1
Автор: Fripp Michael Linley, Penno Andrew, Winkler Albert
Принадлежит:

A system for deploying an untethered dissolvable frac package for use in a hydraulic fracturing operation includes a dissolvable or degradable frac package with a dissolvable or degradable setting tool. The setting tool of the dissolvable frac package is configured to deploy a dissolvable frac plug at a predetermined position along the wellbore string and dissolve over time in the wellbore. 1. A wellbore system useful in hydraulic fracturing or stimulation operations , the system comprising:a wellbore string extending into a subterranean wellbore;a frac plug including a seal element movable from a first radially inward position to a second radially outward position to engage the wellbore string in response to movement to the second radially outward position;a dissolvable setting device including an actuator operably coupled to the frac plug to selectively move the seal element from the first position to the second position in response to receiving a trigger signal, the dissolvable setting device constructed of dissolvable materials such that the dissolvable setting device degrades into individual particles less than one half inch diameter in wellbore fluids and or acid; anda controller carried by the dissolvable setting tool, the controller operable to detect a predetermined depth in the wellbore string, and to provide the trigger signal to the actuator in response to detecting the predetermined depth.2. The wellbore system according to claim 1 , wherein the wellbore system comprises a bypass passage extending at least partially through the frac plug claim 1 , the bypass passage being open to receive a fluid from above the frac plug when the seal element is in the second position in the wellbore string.3. The wellbore system according to claim 2 , wherein the bypass passage is fluidly coupled with a pressure relief valve claim 2 , the pressure relief valve operable to prevent flow through the bypass passage until activated and permit flow through the bypass passage ...

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Номер записи: 55
06-01-2022 дата публикации

FRACTURING OPERATIONS PUMP FLEET BALANCE CONTROLLER

Номер: US20220003229A1
Автор: ANCHLIA Muktabh, BINET Florence, Kuhn de Chizelle Yan P., Lee Manbro, MATTHEWS James, MI Bao, MU Nan, SCHOENE Clare, SUHARIK Bryan, TAYLOR Alexander Tanner
Принадлежит:

A system can include one or more processors; memory; a data interface that receives data; a control interface that transmits control signals for control of pumps of a hydraulic fracturing operation; and one or more components that can include one or more of a modeling component that predicts pressure in a well fluidly coupled to at least one of the pumps, a pumping rate adjustment component that generates a pumping rate control signal for transmission via the control interface, a capacity component that estimates a real-time pumping capacity for each individual pump, and a control component that, for a target pumping rate for the pumps during the hydraulic fracturing operation, generates at least one of engine throttle and transmission gear settings for each of the individual pumps using an estimated real-time pumping capacity for each individual pump where the settings are transmissible via the control interface. 12800. A system () comprising:{'b': '2810', 'one or more processors ();'}{'b': '2820', 'memory () accessible to at least one of the one or more processors;'}{'b': '2830', 'a data interface () that receives real-time data for individual pumps in a fleet of pumps during a hydraulic fracturing operation;'}{'b': '2840', 'a control interface () that transmits control signals for control of each of the individual pumps in the fleet of pumps during the hydraulic fracturing operation;'}{'b': '2870', 'a capacity component (), operatively coupled to at least one of the one or more processors, that estimates a real-time pumping capacity for each of the individual pumps in the fleet of pumps using at least a portion of the real-time data, wherein an estimated real-time pumping capacity for the fleet of pumps computed using the estimates is less than a maximum specified pumping capacity for the fleet of pumps due to operational degradation of at least one of the individual pumps; and'}{'b': '2880', 'a control component (), operatively coupled to at least one of the one ...

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Номер записи: 56
06-01-2022 дата публикации

Estimating relative permeability and capillary pressures of a geological formation based on multiphase upscaling

Номер: US20220003651A1
Автор: Aravind PRABHAKAR, Travis St. George Ramsay
Принадлежит: Halliburton Energy Services Inc, Landmark Graphics Corp

A system can access geological data describing a plurality of rock types in a physical rock sample drilled from a reservoir. The system can generate synthetic rock samples and execute single phase upscaling to compute absolute permeabilities for the physical rock sample and the synthetic rock samples. The system can execute a first multiphase upscaling based on the single phase upscaling to determine relative permeabilities for the physical rock sample and the synthetic rock samples. The system can compare the relative permeability of the physical rock sample to the relative permeabilities for the synthetic rock samples and select a synthetic rock sample that varies the least from the physical rock sample. The system can perform at least one additional multiphase upscaling on the physical rock sample and the synthetic rock samples to determine a second multiphase upscaling result and to develop a plan for drilling operations.

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Номер записи: 57
07-01-2021 дата публикации

Compositions and Methods for Pressure Protection

Номер: US20210002544A1
Автор: HAHN Ruth Ellen, Malik Taimur, MORSY Samiha Said Elsayed, Nizamidin Nabijan, TAGAVIFAR Mohsen S.
Принадлежит:

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. 1. A method for pressure protection of an existing wellbore that has previously been fractured in proximity to a new wellbore to be fractured , the method comprising:injecting a foamed pressure protection composition into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation;wherein the existing wellbore has an existing reservoir pressure that is less than original reservoir pressure; andwherein the foamed pressure protection solution is injected at a pressure and flowrate effective to increase the existing wellbore pressure without refracturing the existing wellbore.2. The method of claim 1 , wherein the existing wellbore was under production for at least three months prior to injection of the foamed pressure protection composition claim 1 ,optionally wherein at least 10,000 barrels of hydrocarbon were produced from the existing wellbore prior to injection of the foamed pressure protection composition.3. The method of claim 1 , wherein the existing wellbore pressure is from 20% to 70% of the original reservoir pressure.4. The method of claim 1 , wherein injecting the foamed pressure protection composition comprises injecting the foamed pressure protection composition at a pressure and flowrate effective to increase the existing wellbore pressure by at least 30% claim 1 , to increase the existing wellbore pressure to from greater than the original reservoir pressure to 150% of the original reservoir pressure claim 1 , to increase the existing wellbore pressure to within 15% of original reservoir fracture pressure claim 1 , or any combination thereof.5. The method of claim 1 , wherein the foamed pressure protection composition is injected at least 1 day before fracturing claim 1 , such as at ...

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Номер записи: 58
04-01-2018 дата публикации

Methods and systems for stimulating and restimulating a well

Номер: US20180003003A1
Автор: Peter Kris Cleven
Принадлежит: Individual

Embodiments disclosed herein describe fracturing methods and systems, wherein pressure differentials and fluid flow rates may be utilized to stimulate multiple zones, sleeves, or ports with the same tool.

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Номер записи: 59
02-01-2020 дата публикации

Downhole Gas Separators And Methods Of Separating A Gas From A Liquid Within A Hydrocarbon Well

Номер: US20200003041A1
Автор: Andrey A. Troshko, Jason Y. WANG, Michael C. Romer, Scott R. Buechler
Принадлежит: ExxonMobil Upstream Research Co

Downhole gas separators, artificial lift systems including the downhole gas separators, hydrocarbon wells including the artificial lift systems, and methods of separating a gas from a liquid hydrocarbon within a hydrocarbon well. The downhole gas separators include an elongate outer housing that defines an enclosed volume, a fluid inlet port, and a gas outlet port. The downhole gas separators further include an elongate dip tube that extends within the enclosed volume, and the gas outlet port is configured to selectively provide fluid communication between the enclosed volume and an external region.

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Номер записи: 60
07-01-2016 дата публикации

Non-electronic air chamber pressure sensor

Номер: US20160003701A1
Автор: Paul David Ringgenberg
Принадлежит: Halliburton Energy Services Inc

An apparatus for use in a wellbore having a housing having at least one chamber capable of receiving a fluid, a sealed annular volume, and a non-electronic pressure sensor disposed in the sealed annular volume. The non-electronic sensor includes a sealed, compressible container. Positioned within the sealed, compressible container are first and second magnets that are separated by a first distance when a fluid within the sealed annular volume is at a first pressure. When the fluid in the sealed annular volume is at a second pressure, the first and second magnets are separated by a second distance.

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Номер записи: 61
07-01-2021 дата публикации

MULTI POSITION SLEEVE ASSEMBLY

Номер: US20210002976A1
Автор: BAUDISTEL CHRISTOPHER, Brown Matthew
Принадлежит:

A three-position sleeve assembly having a housing with one or more housing ports and two sliding sleeves retained in a housing bore. The first sliding sleeve is movable between an open position to permit fluid flow through the housing ports, and a closed position to obstruct the housing ports with the first sleeve. The second sliding sleeve has one or more metering orifices and can be actuated to a metering position to align the metering orifices with the one or more housing ports to permit fluid flow through the housing ports at a metered flow rate, and an inactive position where the second sleeve is clear of the housing ports. The first and second sleeves can be actuated to set the sleeve assembly to an open mode, a closed mode, or a metering mode. 1. A three-position sleeve assembly for use in a wellbore , comprising:a housing comprising a housing bore and one or more housing ports;a first sliding sleeve located in the housing bore and having a first sleeve profile, the first sliding sleeve axially actuable between an open position wherein the one or more housing ports are exposed for permitting fluid communication therethrough, and a closed position wherein the first sliding sleeve obstructs the one or more housing ports for blocking fluid communication therethrough;a second sliding sleeve located within the housing bore and having at least one metering orifice and a second sleeve profile, the second sliding sleeve axially actuable between a metering position wherein the at least one metering orifice is aligned with the one or more housing ports, and an inactive position wherein the second sliding sleeve is clear of the one or more housing ports.2. The sleeve assembly of claim 1 , wherein the second sliding sleeve is located downhole of the first sliding sleeve.3. The sleeve assembly of claim 1 , wherein the second sleeve profile has a lesser axial length than the first sleeve profile. Embodiments taught herein are related to apparatus, systems, and methods for ...

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Номер записи: 62
07-01-2021 дата публикации

THERMAL EXPANSION ACTUATION SYSTEM FOR SLEEVE SHIFTING

Номер: US20210002977A1
Автор: ANDREYCHUK Mark, ANGMAN Per, Brown Matthew, PETRELLA Allan
Принадлежит:

A thermal expansion system for actuating a remote operated sleeve assembly to open and close ports in a housing for fluidly communicating between a bore of a tubular string in a wellbore to the formation utilizes actuation of a propellant charge to create expanding gas and heat in a combustion chamber to directly act on one side of a piston connected to an axially moveable sleeve supported in the housing to shift the sleeve in one direction. Ignition of another propellant charge in a combustion chamber on an opposing side of the piston is used to directly shift the sleeve in an opposing direction. 1. A remoted operated sleeve assembly comprising:a tubular housing having a bore therethrough and ports therein for fluidly connecting the bore to outside the housing and a radially outwardly extending sleeve recess formed intermediate the housing;a sleeve axially moveably supported in the housing, for shifting between blocking the ports and opening the ports, and forming an annular space therebetween;a radially outwardly extending bidirectional sleeve piston formed on the sleeve and extending into the annular space into the sleeve recess;a first chamber formed in the annular space on one side of the sleeve piston and a second chamber formed in the annular space on an opposing side of the sleeve piston;a first circumferential arrangement of a plurality of explosive chambers, in fluid communication with the first chamber, and a second circumferential arrangement of a plurality of explosive chambers, in fluid communication with the second chamber, each of the plurality of explosive chambers having a charge of propellant therein; anda sensor in the sleeve assembly for receiving a coded signal for actuating ignition of one or more of the charges of propellant in the first or second circumferential arrangement of the plurality of explosive chambers,wherein one of the first or second chambers has a volume smaller than a larger volume in the other, the smaller volume chamber ...

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Номер записи: 63
07-01-2021 дата публикации

APPARATUS, SYSTEMS AND METHODS FOR COMPLETION OPERATIONS

Номер: US20210002980A1
Автор: ANDREYCHUK Mark, ANGMAN Per, Brown Matthew, SHPAK Vitaliy
Принадлежит:

A bottomhole assembly (BHA) having a shifting tool and housing for shifting an uphole-to-open sleeve of a sleeve of a shorter length downhole sleeve assembly to an open position, and optionally to a closed position. Sleeve-engaging elements of the BHA are coordinated to direct the sleeve-engaging elements into a tool-engaging profile of the sleeve, excluding other annular variations in the casing string. The BHA has an improved dual J-Mechanism situated between the shifting tool and housing to permit new additional shifting options which results in fewer overall shifting cycles of the BHA when used with the shift uphole-to-open, shorter-length sleeve assembly. The shortened sleeve assembly is incorporated into a casing string and is relatively short in length when compared with conventional sleeve assemblies. 1. A shifting tool for sleeve valves along a wellbore , each sleeve valve having a sleeve housing having a bore fit with an axially shiftable sleeve within , the sleeve having an annular sleeve profile formed therealong , the shifting tool comprising:a first housing portion having a first shifting mechanism;a second housing portion having a second shifting mechanism, the second housing portion telescopically connected to the first housing portion and adapted for axially telescoping between a collapsed position and an extended position;a drag block connected to the second housing portion and adapted for resisting axial movement the second housing portion in the wellbore;a mandrel having a first shifting member adapted to cooperate with the first shifting mechanism, a second shifting member adapted to selectably cooperate with the second shifting mechanism, and a retaining member;one or more sleeve engagement members supported on one or more pivotable arms, the one or more arms supported by the first housing portion, each of the one or more pivotable arms being radially actuable by the retaining member between at least a radially outward position and a radially ...

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Номер записи: 64
07-01-2021 дата публикации

MULTI-ZONE HYDRAULIC STIMULATION SYSTEM

Номер: US20210002982A1
Автор: Abraham Aju, Calahan Sean, Nowowiejski David, Shewchuk Chris
Принадлежит: NATIONAL OILWELL VARCO, L.P.

A system includes a string disposed in a wellbore, a first valve coupled to the string, the first valve including a sleeve having an engagement profile with a first coded sequence, a second valve coupled to the string, the second valve including a sleeve having an engagement profile with a second coded sequence that differs from the first coded sequence of the first valve, and a first dart flow transportable through the string, the first dart including a collet finger having a first coded sequence configured to restrict the collet finger from matingly engaging the engagement profile of the first valve while permitting the collet finger to engage the engagement profile of the second valve, wherein the first dart actuates the sleeve of the second valve between first and second positions in response to the collet finger of the first dart matingly engaging the engagement profile of the second valve. 1. A system for stimulating an earthen formation , comprising:a tubular string disposed in a wellbore extending through the formation;a first valve coupled to the tubular string, the first valve comprising a sliding sleeve having an engagement profile with a first coded sequence;a second valve coupled to the tubular string, the second valve comprising a sliding sleeve having an engagement profile with a second coded sequence that differs from the first coded sequence of the first valve; anda first dart flow transportable through the tubular string, the first dart comprising a collet finger having a first coded sequence configured to restrict the collet finger from matingly engaging the engagement profile of the first valve while permitting the collet finger to matingly engage the engagement profile of the second valve;wherein the first dart is configured to actuate the sliding sleeve of the second valve from a first position to a second position in response to the collet finger of the first dart matingly engaging the engagement profile of the second valve.2. The system of ...

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Номер записи: 65
07-01-2021 дата публикации

Compositions and Methods for Pressure Protection

Номер: US20210002991A1
Автор: MORSY Samiha Said Elsayed, Nizamidin Nabijan, TAGAVIFAR Mohsen S.
Принадлежит:

Disclosed are compositions and methods for the pressure protection of existing wells during infill drilling operations. 1. A method for pressure protection of an existing wellbore that has previously been fractured in proximity to a new wellbore to be fractured , the method comprising:injecting a gas into the existing wellbore in fluid communication with an unconventional subterranean formation prior to and/or during fracturing of the new wellbore in fluid communication with the unconventional subterranean formation;wherein the existing wellbore has an existing reservoir pressure that is less than original reservoir pressure; andwherein the gas is injected at a pressure and flowrate effective to increase the existing wellbore pressure without refracturing the existing wellbore.2. The method of claim 1 , wherein the existing wellbore was under production for at least three months prior to injection of the gas claim 1 ,optionally wherein at least 10,000 barrels of hydrocarbon were produced from the existing wellbore prior to injection of the gas.3. The method of claim 1 , wherein the existing wellbore pressure is from 20% to 70% of the original reservoir pressure.4. The method of claim 1 , wherein injecting the gas comprises injecting the gas at a pressure and flowrate effective to increase the existing wellbore pressure by at least 30% claim 1 , to increase the existing wellbore pressure to from greater than the original reservoir pressure to 150% of the original reservoir pressure claim 1 , to increase the existing wellbore pressure to within 15% of original reservoir fracture pressure claim 1 , or any combination thereof.5. The method of claim 1 , wherein the method further comprises injecting a fracturing fluid into the unconventional subterranean formation via the new wellbore at a sufficient pressure to create or extend at least one fracture in a rock matrix of the unconventional subterranean formation in a region proximate to the new wellbore.6. The method of ...

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Номер записи: 66
07-01-2021 дата публикации

Method for calculating single-well controlled reserve of low-permeability/tight gas reservoir and analyzing residual gas thereof

Номер: US20210002999A1
Автор: Dongchen Liu, Guanglei REN, Guozhuang Wang, Ping Yue, Qingsong Gao, Tao Lei, Zhiwei XIE
Принадлежит: SOUTHWEST PETROLEUM UNIVERSITY

The present invention belongs to the technical field of oil and gas field development, and discloses a method for calculating a single-well controlled reserve of a low-permeability/tight gas reservoir and analyzing residual gas thereof. The method includes: calculating a reserve controlled by each gas well in a block by using a gas reservoir dynamic reserve calculation method; establishing a new reserve calculation formula for solution and comparative analysis by an example; and quantitatively analyzing an effect of a startup pressure gradient and a stress sensitivity on a calculation result of the single-well controlled reserve, wherein the analysis of the factors affecting reserve calculation shows that, when the startup pressure gradient reaches 0.02 MPa/m, the calculated reserve is significantly reduced compared with a conventional method, but when the startup pressure gradient is greater than 0.1 MPa/m, the effect gradually stabilizes.

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Номер записи: 67
07-01-2021 дата публикации

METHOD FOR IDENTIFYING A MEDIUM STRUCTURE COUPLING AND A FRACTURE NETWORK MORPHOLOGY OF A SHALE GAS RESERVOIR

Номер: US20210003005A1
Автор: Chen Zhen, Liu Wenchao, Liu Yunfeng, MA Dongxu, Qi Qian, SONG Zhiyong, YUE Ming, ZHU Weiyao
Принадлежит: University of Science and Technology Beijing

A method for identifying a medium structure coupling and a fracture network morphology of a shale gas reservoir includes the following steps. Firstly, performing a fracturing test on shale cores by using a modified Brazilian disc test and categorizing the fracture network morphology. Secondly, performing a shale matrix-fracture structure and stress sensitivity test on the shale cores having different fracture network morphology. After that, determining a stress sensitivity constant of different fracture network morphology according to indoor core data and finally preparing an identification chart of the fracture network morphology based on an indoor core stress sensitivity text combined with a production practice. The identification chart can be applied to an actual fracturing well, and the fracture network morphology is directly identified by a real-time effective stress and a normalized flow. 1. A method for identifying a medium structure coupling and a fracture network morphology of a shale gas reservoir , comprising the following steps:(1) categorizing the fracture network morphology: performing a fracturing test on shale cores by using a modified Brazilian disc test, categorizing the fracture network morphology as a tree-like fracture network, a feather-like fracture network, a tufted fracture network, and a meshed fracture network;(2) performing a shale matrix-fracture structure and stress sensitivity test: selecting the shale cores having different fracture network morphology in the step (1), performing the shale matrix-fracture structure and stress sensitivity test on the shale cores by a core displacement experiment, recording parameters of permeability and effective stress of the shale core;(3) determining a stress sensitivity constant of different fracture network morphology: according to the parameters of the permeability and the effective stress of the shale cores having the different fracture morphology in the step (2) under different stress conditions ...

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Номер записи: 68
03-01-2019 дата публикации

Apparatus and method for treating a reservoir using re-closeable sleeves, and actuating the sleeves with bi-directional slips

Номер: US20190003285A1
Автор: Don Getzlaf, Tim Johnson
Принадлежит: NCS Multistage Inc

There is provided a bottomhole assembly for deployment within a wellbore string disposed within a wellbore, the wellbore string including a port and a flow control member, wherein the flow control member is displaceable relative to the port for effecting opening and closing of the port, comprising: a first mandrel; a second mandrel including a locator for becoming disposed within a locate profile of the wellbore string such that resistance to displacement of the second mandrel, relative to the locate profile, is effected, and such that locating of the bottomhole assembly within the wellbore string is thereby effected; a shifting tool including a first gripper surface and a second gripper surface; a first shifting tool actuator, translatable with the first mandrel; and a second shifting tool actuator, translatable with the first mandrel; wherein: the shifting tool is displaceable in response to urging by the first shifting tool actuator that is effected by downhole displacement of the first mandrel relative to the second mandrel, such that the first gripper surface is displaced outwardly to a first gripper surface gripping position for becoming disposed in gripping engagement with the flow control member; the shifting tool is displaceable in response to urging by the second shifting tool actuator that is effected by uphole displacement of the first mandrel relative to the second mandrel, such that the second gripper surface is displaced outwardly to a second gripper surface gripping position for becoming disposed in gripping engagement with the flow control member; and the second mandrel includes a retainer for limiting displacement of the shifting tool, relative to second mandrel, in both of downhole and uphole directions.

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Номер записи: 69
07-01-2021 дата публикации

Simulation Method for Flow Field of Multi-Stage Fracturing on Horizontal Well in Tight Oil Reservoir

Номер: US20210003742A1
Автор: KONG DEBIN, LI AISHAN, LI BINGBING, Liu He, Liu Yunfeng, SHU QINGLIN, SONG Zhiyong, Wang Zenglin, YUE Ming, ZHU Weiyao, ZOU GUODONG
Принадлежит:

A simulation method for flow field of multi-stage fracturing on horizontal well in tight oil reservoir is provided. The tight oil reservoir comprises multiple horizontal wells with multi-stage fracturing, and for any horizontal well of the multiple horizontal wells, the method comprises: establishing a seepage mathematical model involving threshold pressure gradient according to reservoir physical property data and production data of the horizontal well, and determining formation pressure distribution of the horizontal well after multi-stage fracturing production according to the seepage mathematical model; determining formation pressure field distribution of the horizontal well after multi-stage fracturing production according to the formation pressure distribution and basing on principle of complex potential superposition; and establishing a criterion for identifying effective producing range of the horizontal well according to the formation pressure field distribution, and determining flow field range of the horizontal well according to the criterion. 1. A simulation method for flow field of multi-stage fracturing on horizontal well in tight oil reservoir , the tight oil reservoir comprises multiple horizontal wells with multi-stage fracturing , and for any horizontal well of the multiple horizontal wells , the method comprises:establishing a seepage mathematical model involving threshold pressure gradient according to reservoir physical property data and production data of the horizontal well, and determining formation pressure distribution of the horizontal well after multi-stage fracturing production according to the seepage mathematical model;determining formation pressure field distribution of the horizontal well after multi-stage fracturing production according to the formation pressure distribution and basing on principle of complex potential superposition; andestablishing a criterion for identifying effective producing range of the horizontal well ...

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Номер записи: 70
13-01-2022 дата публикации

FLOW MANAGEMENT SYSTEMS AND RELATED METHODS FOR OIL AND GAS APPLICATIONS

Номер: US20220010628A1
Автор: Makogon Taras Yurievich, Shariff Maher Maqbool
Принадлежит: Saudi Arabian Oil Company

A method of managing a fluid flow within a conduit includes determining a presence of a flow blockage within the conduit, the conduit being equipped with an expandable device, controlling an electric actuator to flow a current to the expandable device to expand the expandable device radially, compacting the flow blockage radially along a length of the expandable device to create a channel adjacent the flow blockage, controlling the electric actuator to terminate a flow of the current to the expandable device to collapse the expandable device radially, and exposing the channel to open the conduit to fluid flow. 1. A method of managing a fluid flow within a conduit , the method comprising:determining a presence of a flow blockage within the conduit, the conduit being equipped with an expandable device;controlling an electric actuator to flow a current to the expandable device to expand the expandable device radially;compacting the flow blockage radially along a length of the expandable device to create a channel adjacent the flow blockage;controlling the electric actuator to terminate a flow of the current to the expandable device to collapse the expandable device radially; andexposing the channel to open the conduit to fluid flow.2. The method of claim 1 , wherein the expandable device comprises an electrosensitive device.3. The method of claim 1 , wherein the expandable device comprises a piezoelectric element.4. The method of claim 3 , further comprising expanding the expandable device to the expanded configuration in response to an internal charge generated by the current.5. The method of claim 4 , further comprising contracting the expandable device to the collapsed configuration upon termination of the flow of the current that generated the internal charge.6. The method of claim 3 , wherein the expandable device comprises a piezoceramic material.7. The method of claim 1 , wherein the expandable device comprises a corrosion-resistant material.8. The method of ...

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Номер записи: 71
13-01-2022 дата публикации

OPTIMIZATION OF DISCRETE FRACTURE NETWORK (DFN) USING STREAMLINES AND MACHINE LEARNING

Номер: US20220010678A1
Автор: Al-Garni Marei, Amari Mustafa, Awan Anwar Rahim, Camargo Otto E. Meza
Принадлежит:

A methodology is provided to optimize the dynamic connectivity of a discrete fracture network (DFN) model of a subsurface reservoir against observed reservoir production measures using streamlines and machine learning. Adjustment of discrete fracture network properties of the reservoir is made locally and minimizes computer processing time spent in history matching. An iterative workflow identifies history match issues between measured and predicted or simulated water cut of reservoir produced fluids. Streamline analysis quantifies injector-producer communication and identifies reservoir grid block bundles that dominate dynamic response. A genetic algorithm updates discrete fracture network properties of the reservoir model to improve dynamic history match response. 1. A method of determining a location for drilling a well in a subsurface geological structure of a subsurface hydrocarbon reservoir having existing wells producing fluids comprising hydrocarbons and exhibiting water cut representing water mixed in the fluids being produced , the location being determined indicated by an optimized natural fracture network model of the reservoir , comprising the steps of:(a) obtaining reservoir parameters representing properties of the subsurface reservoir for processing in a data processing system, the reservoir properties including observed cumulative water cut of the produced fluids during production from the existing wells;(b) forming a proposed discrete fracture network model indicating the nature and extent of discrete fractures and fracture flow paths in the reservoir;(c) performing a reservoir simulation history match from the obtained reservoir parameters to determine simulated cumulative water cut of the fluids;(d) determining a measure of the difference between the determined simulated cumulative water cut from the performed reservoir simulation history match and the observed water cut of the produced hydrocarbon fluids from the existing wells;(e) determining ...

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Номер записи: 72
13-01-2022 дата публикации

Fluid-solid coupling numerical simulation method for evaluating effect of wellbore strengthening in fractured formation

Номер: US20220012389A1
Автор: Chen Ping, Liu Yang, MA Tianshou, Xiang Xingyun, Zou Jiayan
Принадлежит:

A fluid-solid coupling numerical simulation method for evaluating the effect of wellbore strengthening in a fractured formation includes steps of: establishing an elastic deformation equation of rocks around the wellbore; establishing and solving the fluid flow equations within fractures and plugging zone, respectively; substituting the discretized elastic deformation equation of the rocks around the borehole wall into the fluid flow equations of fractures to obtain a fluid-solid coupling equation set for wellbore strengthening in a fractured formation; and finally solving the fluid-solid coupling equation set; and substituting basic parameters into the fluid-solid coupling equation set, and simulating mechanical response characteristics, width evolution characteristics and flow distribution characteristics of plugged fractures under different parameter combinations. The present invention systematically considers the complex flow states of plugged fractures during wellbore strengthening, as well as the deformation and seepage characteristics plugging zone under multi-force coupling. 19-. (canceled)124. The fluid-solid coupling numerical simulation method claim 10 , as recited in claim 10 , wherein in the step S claim 10 , the basic parameters comprise in-situ stress parameters claim 10 , rock mechanics parameters claim 10 , fracture geometric parameters claim 10 , plugging zone geometric and permeability parameters claim 10 , a fluid viscosity and a displacement. The present invention claims priority under 35 U.S.C. 119(a-d) to CN 202010928300.1, filed Sep. 7, 2020.The present invention relates to a technical field of oil and gas exploration, and more particularly to a fluid-solid coupling numerical simulation method for evaluating an effect of wellbore strengthening in a fractured formation.With the global oil and gas exploration and development transiting to deep formations and unconventional oil and gas resources, the occurrence of drilling into broken formation, ...

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Номер записи: 73
27-01-2022 дата публикации

PHYSICS-PRESERVING IMPES SCHEME AND SYSTEM

Номер: US20220027534A1
Автор: CHEN Huangxin, Sun Shuyu
Принадлежит:

A physics-preserving, implicit pressure, explicit saturation method for simulation of incompressible and immiscible two-phase flow in heterogeneous porous media with capillary pressure, includes receiving input data that characterizes a given domain in a subsurface of the earth; selecting initial parameters K associated with a mixed finite element algorithm; modifying Darcy flows to include a total velocity uand a capillarity potential gradient ξ; establishing a total conservation equation by summing a discretized conservation equation for each phase α of the two-phase flow; and calculating at least one parameter based on the modified Darcy flows and the total conservation equation. The at least one parameter characterizes the two-phase flow in the heterogeneous porous media with a capillary pressure, between an injection well and a production well. 1. A physics-preserving implicit pressure explicit saturation method for simulation of incompressible and immiscible two-phase flow in heterogeneous porous media with capillary pressure , the method comprising:receiving input data that characterizes a given domain in a subsurface of the earth;selecting initial parameters K associated with a mixed finite element algorithm;{'sub': t', 'c, 'modifying Darcy flows to include a total velocity uand a capillarity potential gradient ξ;'}establishing a total conservation equation by summing a discretized conservation equation for each phase α of the two-phase flow; andcalculating at least one parameter based on the modified Darcy flows and the total conservation equation,wherein the at least one parameter characterizes the two-phase flow in the heterogeneous porous media with a capillary pressure, between an injection well and a production well.2. The method of claim 1 , wherein the at least one parameter includes one or more of a saturation for each phase claim 1 , a pressure for each phase claim 1 , or the total velocity of the flow.3. The method of claim 1 , wherein the input ...

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Номер записи: 74
14-01-2021 дата публикации

Actuator for multilateral wellbore system

Номер: US20210010350A1
Автор: David Joe Steele
Принадлежит: Halliburton Energy Services Inc

A lateral wellbore access system is used for moving an isolation sleeve relative to a window of a completion sleeve to adjust access through the window. The system includes an actuator having an isolation sleeve coupling mechanism and a driving mechanism. The isolation sleeve coupling mechanism is configured to engage with an isolation sleeve. The driving mechanism is configured to longitudinally reciprocate the isolation sleeve coupling mechanism within a bore of a completion sleeve to longitudinally move an isolation sleeve coupled to the isolation sleeve coupling mechanism within the bore relative to a window of the completion sleeve. Movement of the isolation sleeve adjusts a position of the isolation sleeve relative to the completion sleeve window for permitting or blocking access through the window into the bore.

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Номер записи: 75
14-01-2021 дата публикации

METHOD FOR DEVELOPING A HYDROCARBON RESERVOIR BY INJECTING A GAS IN THE FORM OF FOAM

Номер: US20210010357A1
Автор: DOUARCHE Frederic, SOULAT Antoine
Принадлежит:

A method of developing a hydrocarbon reservoir by injecting an aqueous solution containing a gas in the form of foam into an injection well. A first step determines a foam displacement model for a flow simulator which is a function of a gas mobility reduction factor and of at least one injection rate-dependent interpolation function. A second step determines a productivity index corrected for the shear thinning effects of the foam in the cells traversed by the injection well, from a productivity index determined by assuming that the aqueous solution containing the gas in foam form is a Newtonian fluid, and a correction factor that is a function of at least one characteristic of the aqueous solution containing the gas in foam form. 112.-. (canceled)13. A method for exploiting hydrocarbons in a reservoir , by injection of an aqueous solution containing a gas form into at least one injection well and of a flow simulator , based on a displacement model of the gas form , the displacement model being expressed as a function of a mobility reduction function of the gas , the function being expressed as a function of a mobility reduction factor of the gas and at least one interpolation function of the mobility reduction factor , the interpolation function being a function of at least one parameter relative to at least one characteristic of the foam and of at least two constants , the at least one parameter of the interpolation function corresponding to an injection rate of the gas , from at least one sample of the formation and from a gridded representation representative of the reservoir , comprising steps of:A—determining the displacement model by determining the mobility reduction factor of the gas and the constants of the interpolation function of the displacement model, from at least pressure drop measurements performed while injecting into the at least one sample the gas in non-foaming form and the gas foam for values of the injection rate of the gas; {'br': None, 'i': ...

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Номер записи: 76
14-01-2021 дата публикации

Hydraulic fracturing modelling and control

Номер: US20210010359A1
Автор: Ajish Potty, Joshua Lane CAMP, Ronald Glen Dusterhoft, William Owen Alexander Ruhle
Принадлежит: Halliburton Energy Services Inc

Aspects of the subject technology relate to systems and methods for controlling a hydraulic fracturing job. A fracturing completion model can be applied to identify a plurality of possible fracturing completion plans for completing one or more wellbores at a target completion. The plurality of possible fracturing completion plans can include varying values of fracturing completion parameters and/or reservoir parameters. Completion characteristic data of the one or more wellbores can be gathered in response to application of at least a portion of a fracturing completion plan of the possible fracturing completion plans. Further, the completion characteristic data can be used to determine whether to apply a different fracturing completion plan of the possible fracturing completion plans. In turn, if it is determined to apply the different fracturing completion plan, then the method can include facilitating switching to the different fracturing completion plan in completing the one or more wellbores.

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Номер записи: 77
10-01-2019 дата публикации

Method and apparatus for wellbore fluid treatment

Номер: US20190010785A1
Автор: Daniel Jon Themig, Jim Fehr
Принадлежит: Packers Plus Energy Services Inc

A tubing string assembly for fluid treatment of a wellbore includes substantially pressure holding closures spaced along the tubing string, which each close at least one port through the tubing string wall. The closures are openable by a sleeve drivable through the tubing string inner bore.

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Номер записи: 78
09-01-2020 дата публикации

Streamlined Valve Assembly for Downhole Pump of Reciprocating Pump System

Номер: US20200011154A1
Автор: John E. Stachowiak, Jr.
Принадлежит: Weatherford Technology Holdings LLC

A downhole pump used for a reciprocating pump system includes a barrel coupling to a tubing string and having a standing valve and includes a plunger coupling to a rod string and having a traveling valve. One or both of the valves can include an assembly comprising a housing, an insert, a ball, and a seat. The insert allowing for flow therethrough defines a ball stop at one end has a ball passage at the other end. The insert positions in flow passage of the housing, and one of the ends engages a shoulder in the passage. The insert includes sidewalls and a conical body to reduce turbulence, flow velocity, gas breakout, ball chatter, and the like.

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Номер записи: 79
03-02-2022 дата публикации

DISSOLVABLE, PROTECTIVE COVERING FOR DOWNHOLE TOOL COMPONENTS

Номер: US20220034188A1
Автор: JR. James Wayne, PELTO Christopher Michael, Scott
Принадлежит: Halliburton Energy Services, Inc.

A downhole tool can include: an inner mandrel; at least one component, wherein a portion of the at least one component moves in a direction radially away from the inner mandrel when the downhole tool is set; and a protective covering, wherein the protective covering comprises a dissolvable material, and wherein the protective covering partially surrounds an outer diameter of the at least one component when the downhole tool is run-in. The downhole tool can be introduced into a wellbore. The protective covering can dissolve via chemical reactions of metals, metal alloys, or metal oxides, or by melting of a thermoplastic. The downhole tool can be set after the protective covering has dissolved. The tool can be a packer assembly, bridge plug, frac pack plug, or liner hangers. The at least one component of the downhole tool can be a sealing element, a collet, a split wedge, or a slip. 1. A downhole tool comprising:an inner mandrel;at least one component, wherein a portion of the at least one component moves in a direction radially away from the inner mandrel when the downhole tool is set; anda protective covering, wherein the protective covering comprises a dissolvable material, and wherein the protective covering partially surrounds an outer diameter of the at least one component when the downhole tool is run-in.2. The downhole tool according to claim 1 , wherein the downhole tool is selected from a packer assembly claim 1 , a bridge plug claim 1 , liner hangers claim 1 , or a frac pack plug.3. The downhole tool according to claim 1 , wherein the at least one component is selected from a sealing element claim 1 , a collet claim 1 , a split wedge claim 1 , or a slip.4. The downhole tool according to claim 1 , wherein the protective covering completely surrounds the entire outer diameter of the at least one component.5. The downhole tool according to claim 1 , wherein one protective covering completely surrounds a two or more components.6. The downhole tool according to ...

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Номер записи: 80
03-02-2022 дата публикации

Downhole conformable screen system and method of making a conformable screen for downhole use

Номер: US20220034203A1
Автор: Sean Gaudette
Принадлежит: Baker Hughes Oilfield Operations LLC

A system of a downhole conformable screen system including a tubular, and a screen defined by a plurality of screen segments positioned radially outward of the tubular, each of the plurality of screen segments being positioned perimetrically between two other of the screen segments, the screen being configured to expand radially to engage with an inner surface of a wellbore after the tubular and screen have been positioned within the wellbore. A method of making a conformable screen for downhole use including forming a plurality of screen segments out of a porous foam, and attaching the plurality of screen segments to a tubular to form a screen around the tubular.

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Номер записи: 81
03-02-2022 дата публикации

Method and System of Producing Hydrocarbons Using Data-Driven Inferred Production

Номер: US20220034208A1
Автор: Dani Neeraj R., de Mattia Marco, Garrett Richard D., Holub Curtis J.
Принадлежит:

A method of predicting hydrocarbon production from one or more artificial lift wells is disclosed. Test data is obtained from the artificial lift well. A decline curve model, representing well performance, is generated for one or more fluids in the artificial lift well. Measurement values are obtained from an artificial lift operation. For each of the obtained measurement values, a measurement model is generated that correlates the measurement values to the decline curve. A Kalman filter is used to predict production outputs of at least one of oil, gas, and water for the well, and to generate an uncertainty range for the predicted production outputs. The Kalman filter uses the decline curves to predict the production outputs, and uses the measurement models to correct and/or update the predicted production outputs. Hydrocarbon production activities are modified using the corrected and/or updated predicted production outputs. 1. A method of predicting hydrocarbon production from an artificial lift well , comprising:obtaining test data from the artificial lift well using a well test;based on the obtained test data, generating a decline curve model for one or more fluids in the artificial lift well, the decline curve representing well performance;obtaining measurement values from an artificial lift operation;for each of the obtained measurement values, generating a measurement model that correlates the measurement values to the decline curve; predicting production outputs of at least one of oil, gas, and water for the well, and', 'generating an uncertainty range for the predicted production outputs;, 'using a Kalman filter,'} uses the decline curves to predict the production outputs, and', 'uses the measurement models to correct and/or update the predicted production outputs; and, 'wherein the Kalman filter'}modifying hydrocarbon production activities using the corrected and/or updated predicted production outputs.2. The method of claim 1 , wherein correcting and/or ...

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Номер записи: 82
03-02-2022 дата публикации

METHOD AND APPARATUS FOR PREDICTING OPTIMAL EXPLOITATION IN SHALE OIL IN-SITU CONVERSION

Номер: US20220034213A1
Автор: Cui Jingwei, Hou Lianhua, WANG Jinghong, Zhao Zhongying
Принадлежит:

The disclosure provides a method and apparatus for predicting an optimal exploitation approach for shale oil in-situ conversion. The method includes: determining a lower limit temperature required for completely converting convertible organic matter in a shale to be measured into oil and gas, based on a pre-established relationship between the temperature rise rate and the lower limit temperature; determining an optimal well distance of heating wells, based on a thermal field parameter of a target reservoir of interest, an optimal heating time corresponding to the lower limit temperature, and a pre-established relationship between an optimal well distance of heating wells and the optimal heating time; determining an oil yield equivalent based on a temperature and an oil yield equivalent of the shale; determining an optimal well pattern; the lower limit temperature, the optimal well distance of heating wells, the oil yield equivalent and the optimal well pattern are optimal parameters. 1. A method for predicting an optimal exploitation approach for shale oil in-situ conversion , comprising:determining a lower limit temperature required for completely converting convertible organic matter in a shale to be measured into oil and gas, based on a temperature rise rate and a pre-established relationship between the temperature rise rate and the lower limit temperature required for completely converting the convertible organic matter in the shale into oil and gas;determining an optimal well distance of heating wells, based on a thermal field parameter of a target reservoir of interest, an optimal heating time corresponding to the lower limit temperature, and a pre-established relationship between the optimal well distance of heating wells and the optimal heating time;determining an oil yield equivalent of a production well in the target reservoir of interest, based on the temperature rise rate and a pre-established relationship between a temperature and an oil yield ...

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Номер записи: 83
03-02-2022 дата публикации

MEASURING SEALING QUALITY OF CONNECTIONS IN DOWNHOLE CASINGS

Номер: US20220034217A1
Автор: KOLB Kurt, LAW Jacob, MANDERS Graham T.
Принадлежит: DarkVision Technologies Inc

A method and system for inspecting casings in a wellbore to determine a mechanical or sealing quality of casing connections. Casing connections may become mechanically weak or start to leak after some period of use in harsh conditions. A radial array of ultrasound transducers images the casing in-situ to create an ultrasound image, which is analyzed to detect the casing connector then analyzed a sealing band of the connector. Machine learning and image processing methods may be used to analyze the images. 1. A method of inspecting a wellbore comprising:deploying an imaging tool into and axially through casings of the wellbore;imaging the casing with a radial array of ultrasound transducers to create an ultrasound image;analyzing the ultrasound image to detect features that identify a casing connector;locating a band of the ultrasound image at a predetermined offset from the detected features; andanalyzing the band of the image to determine a connection quality of the casing connector to the casing.2. The method of claim 1 , wherein the band is a sealing band next to the features which sealing band corresponds to a metal-to-metal sealing interface between the casing and a casing connector andwherein analyzing the band of the image comprises determining a sealing quality of the casing connector to the casing.3. The method of claim 1 , wherein the band corresponds to a plurality of threads connecting the casing and casing connector andwherein analyzing the band of the image comprises determining a mechanical connection strength of the casing connector to the casing.4. The method of claim 1 , wherein the feature of the casing connector is at least one of: threads claim 1 , a torque shoulder claim 1 , and a dope relief.5. The method of claim 1 , further comprising filtering out reflections in the ultrasound image from the inner and/or outer surfaces of the casing.6. The method of claim 1 , further comprising converting a magnitude of reflection energy in the ultrasound ...

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Номер записи: 84
03-02-2022 дата публикации

USING DISTRIBUTED SENSOR DATA TO CONTROL CLUSTER EFFICIENCY DOWNHOLE

Номер: US20220034220A1
Автор: DEV Ashwani, Madasu Srinath, PRIYADARSHY Satyam, Rangarajan Keshava Prasad
Принадлежит:

A system for determining real time cluster efficiency for a pumping operation in a wellbore includes a pump, a surface sensor, a downhole sensor system, and a computing device. The pump can pump slurry or diverter material in the wellbore. The surface sensor can be positioned at a surface of the wellbore to detect surface data about the pump. The downhole sensor system can be positioned in the wellbore to detect downhole data about an environment of the wellbore. The computing device can receive the surface data from the surface sensor, receive the downhole data from the downhole sensor system, apply the surface data and the downhole data to a long short-term memory (LSTM) neural network to produce a predicted cluster efficiency associated with operational settings of the pump, and control the pump using the operational settings to achieve the predicted cluster efficiency. 1. A system comprising:a pump in operable communication with a wellbore having multiple stages, to pump slurry or diverter material into the wellbore;a surface sensor positionable at a surface of the wellbore to detect surface data about the pump;a downhole sensor system positionable in the wellbore to detect downhole data about an environment of the wellbore; anda computing device to communicate with the pump, the surface sensor, and the downhole sensor system, the computing device being operable to: receive the downhole data from the downhole sensor system;', 'apply the surface data and the downhole data to a long short-term memory (LSTM) neural network to produce a predicted cluster efficiency associated with operational settings of the pump; and', 'control the pump using the operational settings to achieve the predicted cluster efficiency., 'receive the surface data from the surface sensor;'}2. The system of claim 1 , wherein the LSTM neural network is a deep recurrent neural network (DRNN) that is trained using a subset of the surface data and of the downhole data.3. The system of claim 1 , ...

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Номер записи: 85
03-02-2022 дата публикации

EQUALIZING CARTRIDGE FOR A FLAPPER VALVE

Номер: US20220034425A1
Автор: JOHNSON Jeffrey
Принадлежит: Baker Hughes Oilfield Operations LLC

A one-way valve for use in a wellbore includes a housing having a longitudinal axis defining a flow bore. A valve seat is arranged in the housing along the flow bore. A flapper member is pivotally supported in the housing between a closed position and an open position. The flapper member includes a first side having a sealing surface that selectively engages the valve seat in the closed position and an opposing second side. The flapper member also includes a central portion that is aligned with the longitudinal axis in the closed portion and a passage extending through the flapper member. An equalizing cartridge is arranged in the passage. The equalizing cartridge includes an equalizing housing and an equalizing plunger including an activation end provided at the first side of the flapper member. 1. A one-way valve for use in a wellbore comprising:a housing including a longitudinal axis defining a flow bore;a valve seat arranged in the housing along the flow bore;a flapper member pivotally supported in the housing between a closed position and an open position, the flapper member including a first side having a sealing surface that selectively engages the valve seat in the closed position and an opposing second side, the flapper member including a central portion that is aligned with the longitudinal axis in the closed portion and a passage extending through the flapper member; andan equalizing cartridge arranged in the passage, the equalizing cartridge including an equalizing housing and an equalizing plunger including an activation end provided at the first side of the flapper member.2. The one-way valve according to claim 1 , further comprising: a biasing member arranged in the equalizing housing claim 1 , the biasing member urging the equalizing plunger toward the first side of the flapper member.3. The one-way valve according to claim 1 , wherein the equalizing plunger includes a first end defined by the activation end and a second end including a sealing ...

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Номер записи: 86
03-02-2022 дата публикации

ELASTIC ADAPTIVE DOWNHOLE ACQUISITION SYSTEM

Номер: US20220035065A1
Автор: Hurlimann Martin, Lin Yanxian, Song Yi-Qiao, Tang Yiqiao
Принадлежит:

A method can include performing an operation using a system where the operation depends on a decision made via a digital decision model stored in memory of the system; responsive to a decision state of the digital decision model, transmitting a request to update the digital decision model; and responsive to the request, receiving an updated digital decision model, where the updated digital decision model includes at least one new decision state that improves performance of the operation of the system. 1. A method comprising:performing an operation using a system wherein the operation depends on a decision made via a digital decision model stored in memory of the system;responsive to a decision state of the digital decision model, transmitting a request to update the digital decision model; andresponsive to the request, receiving an updated digital decision model, wherein the updated digital decision model comprises at least one new decision state that improves performance of the operation of the system.2. The method of wherein the digital decision model comprises a regression tree model.3. The method of wherein the system is moving in an environment claim 1 , wherein the operation comprises a sensing operation that acquires sensor measurements of samples in the environment while the system is moving claim 1 , wherein the digital decision model depends on a signal to noise ratio of the sensing operation claim 1 , and wherein the signal to noise ratio changes responsive to physical changes in the environment that occur responsive to the system moving in the environment.4. The method of comprising selecting claim 1 , based on the decision state claim 1 , a flag from a plurality of different flags stored in the memory claim 1 , wherein the request corresponds to the selected flag claim 1 , wherein the decision state comprises a terminal state of the digital decision model claim 1 , and wherein the at least one new decision state of the updated digital decision model ...

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Номер записи: 87
03-02-2022 дата публикации

METHODS AND SYSTEMS FOR PREDICTING INTERFACIAL TENSION OF RESERVOIR FLUIDS USING DOWNHOLE FLUID MEASUREMENTS

Номер: US20220035971A1
Автор: ABDALLAH WAEL, Al-Hamad Mohammed, Ma Shouxiang, Mahavadi Sharath Chandra, Sauerer Bastian, Singh Robin, ZHANG Leilei
Принадлежит:

Methods and systems are provided for characterizing interfacial tension (IFT) of reservoir fluids, which involves obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions, and inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data. In embodiments, the fluid property data represents single-phase fluid properties of the reservoir fluid sample, such as fluid density and viscosity of an oil phase of the reservoir fluid sample and fluid density of a water phase of the reservoir fluid sample. In embodiments, the computation model can be based on machine learning or analytics combined with a thermodynamics-based physics model. 1. A method for characterizing interfacial tension (IFT) of reservoir fluids , comprising:a) obtaining fluid property data that represents fluid properties of a reservoir fluid sample measured downhole at reservoir conditions; andb) inputting the fluid property data to a computational model that determines a value of oil-water IFT of the reservoir fluid sample based on the fluid property data.2. A method according to claim 1 , wherein:the operations of a) and b) are performed by a processor.3. A method according to claim 2 , wherein:the processor is part of a cloud-based computing environment.4. A method according to claim 1 , further comprising:storing the value of the oil-water IFT of the reservoir fluid sample as part of data accessible by an advisory tool for reservoir analysis and optimization.5. A method according to claim 4 , wherein:the advisory tool is provided by a cloud-based computing environment for reservoir analysis and optimization.6. A method according to claim 1 , wherein:the fluid property data represents single-phase fluid properties of the reservoir fluid sample.7. A method according to claim 6 , wherein:the single-phase fluid properties of the ...

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Номер записи: 88
21-01-2021 дата публикации

METHODS AND SYSTEMS FOR A TEMPORARY SEAL WITHIN A WELLBORE

Номер: US20210017833A1
Автор: Saraya Mohamed Ibrahim
Принадлежит:

Examples of the present disclosure relate to a temporary seal within a wellbore. More specifically, embodiments include a temporary seal within casing that limits the flow of fluid through the casing until the temporary seal is released. 1. A system for temporarily sealing a wellbore , the system comprising:a seat positioned within a tool;a temporary seal configured to be positioned on a dissolvable seat in a first mode, the temporary seal including a segmented layer comprised of a plurality of segments that are positioned adjacent to each other in a plane in the first mode.2. The system of claim 1 , wherein the segmented layer includes one or more layer claim 1 , with a plurality of columns of segments and a plurality of rows of segments.3. The system of claim 2 , wherein a first layer of the segmented layer is coated with a sealant.4. The system of claim 2 , wherein the first layer is formed of a solid disk claim 2 , wherein a surface of the solid disk includes hatchings.5. The system of claim 4 , wherein the temporary seal is made out of a dissolvable claim 4 , disintegrating claim 4 , or vanishing segments that change size or shape when contaminated with pre-determined fluid.6. The system of claim 5 , wherein a lower dissolvable layer or surface is not coated with the sealant.7. The system of claim 2 , wherein a first layer of the segmented layer includes a first set of segments claim 2 , and a second layer of the segmented layer includes a second set of segments claim 2 , the first set of segments being aligned in a different orientation than the second set of segments.8. The system of claim 1 , further comprising:a chamber positioned below the plane, the chamber having a larger inner diameter than an inner diameter above the seat.9. The system of claim 8 , wherein the plurality of segments are configured to disengage from each other in the chamber in a second mode.10. The system of claim 1 , wherein the plurality of segments are dissolvable.11. The system of ...

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Номер записи: 89
21-01-2021 дата публикации

Method and Stimulation Sleeve for Well Completion in a Subterranean Wellbore

Номер: US20210017837A1
Автор: Kent Anthony, Tveranger Jan Tore
Принадлежит:

Stimulation sleeve () for well intervention in a subterranean wellbore, comprising: a housing () having a through channel () with a first end () and a second end (), and one or more flow ports (), and a sliding sleeve () disposed axially movable within the housing () to open or close said flow ports (). Said sliding sleeve () is equipped with at least a first obturator seat () for receipt of a obturator () to partially or fully close fluid communication in the through channel () of the housing (), and a time delay mechanism () to allow the sliding sleeve () to axially travel in the housing () at a predetermined speed to open or close said flow ports (). The invention also discloses a method for well completion in a subterranean wellbore using a sliding sleeve (). 1. Method for well completion in a subterranean wellbore , comprising the steps:running a tubing string with a number of stimulation sleeves into the wellbore, each stimulation sleeve comprises a housing having a through channel with a first end and a second end, one or more flow ports, and a sliding sleeve disposed axially movable within the housing to open or close said flow ports;dropping an obturator into a well stream in the tubing and to land the obturator on a first obturator seat to partially or fully close fluid communication in the through channel of the housing;building up pressure to shift the sliding sleeve axially in the housing to open the flow ports;engaging a time delay mechanism for controlled travel of the sliding sleeve in the housing to hold the flow ports open a predetermined time, wherein time delay is adjustable for individual sleeves;closing the flow ports after the sliding sleeve has moved the predetermined time;the method is characterized by the steps of retracing the obturator seat to release the obturator;landing a second obturator in a second seat, said second obturator seat being located uphole of the first obturator seat, and to build up pressure to shift the sliding sleeve ...

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Номер записи: 90
21-01-2021 дата публикации

MULTI-ZONE PERFORATE AND TREAT SYSTEM AND METHOD

Номер: US20210017839A1
Автор: Ferguson Andrew M., Schultz Roger L., WATSON Brock W.
Принадлежит:

A downhole well tool assembly can include a perforator and a selectively openable and closable perforation plug discharge port. A method of perforating and treating multiple formation zones of a well in a single trip of a downhole well tool assembly into the well can include positioning the downhole well tool assembly at a zone, closing a perforation plug discharge port of the downhole well tool assembly, perforating the zone, treating the zone, opening the perforation plug discharge port, deploying perforation plugs into the well via the perforation plug discharge port, plugging perforations in the zone with the perforation plugs, positioning the downhole well tool assembly at a subsequent zone, closing the perforation plug discharge port, perforating the subsequent zone, and treating the subsequent zone. 1. A downhole well tool assembly , comprising:a perforator; anda selectively openable and closable perforation plug discharge port.2. The downhole well tool assembly of claim 1 , further comprising a valve assembly configured to selectively open and close the perforation plug discharge port in response to manipulation of a fluid flow rate through a longitudinal flow passage extending through the valve assembly.3. The downhole well tool assembly of claim 2 , in which the flow passage extends longitudinally through the perforator.4. The downhole well tool assembly of claim 3 , in which the valve assembly comprises a valve that opens and permits fluid flow through the flow passage to the perforator when the perforation plug discharge port is closed.5. The downhole well tool assembly of claim 4 , in which the valve closes and prevents fluid flow through the flow passage to the perforator when the perforation plug discharge port is open.6. The downhole well tool assembly of claim 1 , in which sealing engagement between a plugging device and a restriction in a flow passage extending longitudinally through the perforator blocks flow through the perforation plug discharge ...

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Номер записи: 91
16-01-2020 дата публикации

Rolling annular seal

Номер: US20200018397A1
Автор: Nicolas Arteaga
Принадлежит: Cameron International Corp

Sealing assemblies with rolling annular seals are provided. In one embodiment, an apparatus includes a stuffing box having a rolling seal positioned in a body for sealing against a tubing or wireline cable received in a bore of the body. The rolling seal can rotate within the body to roll along the tubing or wireline cable in response to movement of the tubing or wireline cable through the body and friction between the rolling seal and the tubing or wireline cable. Additional systems, devices, and methods are also disclosed.

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Номер записи: 92
21-01-2021 дата публикации

Characterizing low-permeability reservoirs by using numerical models of short-time well test data

Номер: US20210018637A1
Автор: Bandar A. Wehaibi, Noor M. Anisur Rahman, Rana Shahzad Amin
Принадлежит: Saudi Arabian Oil Co

Systems and methods include a computer-implemented method for characterizing low-permeability reservoirs by using numerical models. A numerical model modeling production of a well is prepared using reservoir data and well data. The numerical model is updated, including adjusting numerical model properties, until results of performing a quality assurance/quality control check indicate that the numerical model is within acceptable limits. Pressure derivatives are extracted from a transient test to create a functional numerical model. Simulations are run on the functional numerical model and reservoir features and properties are adjusted until acceptable results are achieved on: 1) a pressure match between pressures modeled in the functional numerical model and transient pressures of the well, and 2) a log-log plot derivative match between a pressure derivative of the functional numerical model and a pressure derivative of the transient pressures of the well. A simulation output that is based on the simulations is provided.

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Номер записи: 93
21-01-2021 дата публикации

METHOD OF CALCULATING TEMPERATURE AND POROSITY OF GEOLOGICAL STRUCTURE

Номер: US20210018652A1
Автор: HOKSTAD Ketil
Принадлежит:

A method of calculating the temperature and/or porosity of a geological structure, wherein there is provided at least two geophysical parameters of the geological structure, the method including inverting the at least two geophysical parameters to estimate the temperature and/or porosity of the geological structure. 1. A method of calculating the temperature and/or porosity of a geological structure , wherein there is provided at least two geophysical parameters of the geological structure , the method comprising:inverting the at least two geophysical parameters to estimate the temperature and/or porosity of the geological structure; andusing the calculated temperature and/or porosity in the decision-making process for the drilling of a geothermal well.2. A method as claimed in comprising using both the calculated temperature and the calculated porosity in the decision-making process for the drilling of a geothermal well.3. A method as claimed in claim 1 , wherein the at least two geophysical parameters are any geophysical parameters which are dependent on temperature and/or porosity claim 1 , such as density claim 1 , seismic velocity claim 1 , magnetic susceptibility claim 1 , electrical conductivity claim 1 , electrical resistivity or magnetic remanence.4. A method as claimed in claim 3 , wherein the at least two geophysical parameters comprise electrical conductivity.5. A method as claimed in claim 1 , wherein the inverting step comprises using one or more models in which there is statistical independence between the at least two geophysical parameters and statistical dependence between each respective geophysical parameter and the temperature and/or porosity of the geological structure.6. A method as claimed in claim 1 , wherein the inverting step comprises using respective forward models for each respective geophysical parameter claim 1 , the forward models each defining a relationship between the respective geophysical parameter and the temperature and/or ...

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Номер записи: 94
21-01-2021 дата публикации

Systems and methods for forecasting well interference

Номер: US20210018655A1
Автор: Ajish Sreeni Radhakrishnan POTTY, Dwight David FULTON, Jianfu Ma, Jianlei SUN
Принадлежит: Halliburton Energy Services Inc

Disclosed are systems and methods for obtaining input data comprising properties associated with at least one parent well and a child well associated with the at least one parent well, dividing the input data into a training data subset, a validation data subset, and a test data subset, selecting at least one machine learning model using the training data subset, the validation data subset, and the test data subset based on k-fold cross validation, tuning hyper parameters for each of the at least one machine learning model, and generating a learning output using the at least one machine learning model and the hyper parameters for each of the at least one machine learning model, the learning output indicating a test root-mean-square error (RMSE) and a training RMSE.

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Номер записи: 95
21-01-2021 дата публикации

Geologic formation operations framework control

Номер: US20210019350A1
Автор: Michael Antony CLEMINSON, Todd Christopher Dixon
Принадлежит: Schlumberger Technology Corp

A method can include accessing data generated during field operations; analyzing at least a portion of the data as to legal tag property values; storing the legal tag property values in association with the data; and operating a computational framework in accordance with the legal tag property values.

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Номер записи: 96
28-01-2016 дата публикации

Downhole bypass tool

Номер: US20160024885A1
Автор: Andy Ferguson, Roger Schultz
Принадлежит: Thru Tubing Solutions Inc

The present disclosure is directed to a downhole bypass tool that includes an inlet for receiving fluid into a housing of the bypass tool. The bypass tool also includes a flow directing apparatus disposed in the housing for directing fluid to flow into an operational flow path of a vibratory tool. The vibratory tool is at least partially disposed within the hosing of the bypass tool. The flow directing apparatus operates selectively bypass the operational flow path of the vibratory tool such that the fluid bypasses the operational flow path of the vibratory tool and flows out of an outlet of the bypass tool.

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Номер записи: 97
26-01-2017 дата публикации

Safety device for a fluid production well, associated installation and method

Номер: US20170022785A1
Автор: François CHEVILLARD, Francois Joseph Girardi
Принадлежит: Geoservices Equipements SAS

Safety device ( 10 ) for a fluid production well, comprising a valve ( 58 ) used to seal a passage, and which can move between an open position of the passage ( 52 ) and a closed position of the passage ( 52 ); and connecting biasing means ( 92 ) for permanently biasing the valve ( 58 ) towards the closed position thereof. The device comprises holding means ( 42 ) for holding the valve ( 58 ) in its open position against permanent biasing means ( 92 ), and actuating means ( 42, 44 ) which are configured to actuate the holding means ( 42 ), on reception of a maintenance signal, to generate: a first displacement of the movement element ( 98 ) from the active valve biasing position to an intermediate valve biasing position, in which the valve ( 58 ) remains in its open position; and a subsequent second return displacement of the movement element ( 58 ) from the intermediate valve biasing position to the active valve biasing position.

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Номер записи: 98
10-02-2022 дата публикации

Downhole valve and method of use

Номер: US20220042395A1
Автор: Barbara Jan BAILEY, Charles David Wintill, Henry Joe Jordan, Jr.
Принадлежит: Colt Petroleum Technology Inc, Colt Petroleum Technology LLC

In an embodiment is provided a valve that includes a housing, a mandrel connected to the housing and defining an interior volume therebetween, a sleeve having a first end and a second end, the sleeve movably disposed in the interior volume, a chamber defined in the interior volume, the chamber having a first end and a second end, an inlet of a metering device coupled to the second end of the chamber, and an outlet of the metering device adjacent to the first end of the sleeve. In another embodiment is provided a method of using a valve that includes introducing pressure to a central bore of the valve such that a sleeve of the valve moves from a closed, locked position to a test position. The closed, locked position and the test position do not permit fluid communication between a central bore and an exterior of the valve.

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Номер записи: 99
10-02-2022 дата публикации

Ball and seat valve assembly and downhole pump utilizing the valve assembly

Номер: US20220042397A1
Автор: II Joe A., Nelson
Принадлежит:

Disclosed is a work for oilwell plunger pumping under a packer system used to increase the wear life of API ball and seat valves and of ball and seat valves seat utilizing a piston actuator mechanism to unseat the ball from the seat, which during operation, create turbulent flow within the housing to increase force to move piston actuator like rifle bullet or weighted blow dart in dynamic high velocity high impact in stages to overcome hydraulic head and surface tension between ball and seat. Also disclosed umbrella shaped disks on the piston actuator for increased force to be used in both insert and tubing type down hole plunger oil well pumps. The labyrinth of fluid passages that are rectangular channels not holes help keep ball off its seat for complete down stroke and keep solids in suspension to prevent plugging of API ball in API valve cage. Part of the art is based on “Hydraulic Jump” theory by Leonardo Di Vinci in 1500's where thin film at the surface, greatly increases force due to physical changes to fluid at high speeds hitting objects. 1. This tool is for installation inside a pump barrel in a downhole sucker rod plunger Pump (for both tubing and insert) attached to a travel valve cage with a actuator moveably mounted in it's own housing for purpose of moving the ball off it's seat in the downstroke comprising:(a) a hollow tubular member with threads on top to screw on to a plunger valve cage that is to hold the ball and the seat in place having an interior wall defining an internal cross-sectional area.(b) the tubular member, having a seating passage with a seating cross-sectional area and flow passages in the circumference of the tublar member.(c) the ball positioned above the tubular member and above the valve seat in the plunger valve cage with screwed connection.(d) a piston actuator with umbrella disks mounted within the tubular member below the valve seat comprising an actuator for engaging the ball through the passage while the ball is seated on ...

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Номер записи: 100