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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 5822. Отображено 100.
09-02-2012 дата публикации

Drill Cuttings Box Combined Cuttings Feed Inlet and Air Outlet Apparatus

Номер: US20120031680A1
Автор: Chad Hollier
Принадлежит: ENVIRONMENTAL DRILLING SOLUTIONS LLC

A combined cuttings stream inlet and air stream outlet apparatus, for placement within the inspection hatch of a conventional drill cuttings box, is disclosed. The combined cuttings stream inlet and air stream outlet apparatus has a central cuttings stream inlet conduit, disposed within a larger air stream outlet conduit. The air stream outlet conduit is sized to closely engage the diameter of the inspection hatch when inserted into the hatch opening. The annulus between the two conduits forms a flow area for air to exit the cuttings box. In use, the combined apparatus is easily inserted into the hatch opening of the cuttings box, preferably with a gasket between the apparatus and the hatch opening, and is held in place by the cuttings/air stream. When the cuttings box is full, the apparatus is simply pulled out and inserted into an empty cuttings box.

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Номер записи: 1
01-03-2012 дата публикации

Pump through circulating and or safety circulating valve

Номер: US20120048564A1
Автор: Charles Frederick Carder, Paul David Ringgenberg
Принадлежит: Halliburton Energy Services Inc

According to one embodiment, a recirculation safety valve is disclosed. The valve has a tubular body with mandrel that is axially shifted in response to annulus pressure. Shifting of the mandrel can either close a safety valve or close a safety valve and open a recirculation port. The valve has an annular actuation chamber that relieves that pressure to prevent inadvertent shifting of the mandrel.

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Номер записи: 2
26-04-2012 дата публикации

Downhole Mechanism

Номер: US20120097453A1
Автор: David R. Hall, John Bailey
Принадлежит: Schlumberger Technology Corp

In one aspect of the invention, a downhole tool string component comprises a fluid passageway formed between a first and second end. A valve mechanism is disposed within the fluid passageway adapted to substantially cyclically build-up and release pressure within the fluid passageway such that a pressure build-up results in radial expansion of at least a portion of the fluid passageway and wherein a pressure release results in a contraction of the portion of the fluid passageway. The valve mechanism disposed within the fluid passageway comprises a spring. Expansion and contraction of the portion of the fluid passageway varies a weight loaded to a drill bit disposed at a drilling end of the drill string.

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Номер записи: 3
31-05-2012 дата публикации

Formation treatment system and method

Номер: US20120132426A1
Автор: Michael H. Johnson, Richard YingQing Xu
Принадлежит: Baker Hughes Inc

A formation treatment system includes an annulus spanning member having one or more openings therein, the one or more openings incorporating a degradable material. A tubular having one or more ports therein in fluid communication with the one or more openings. A sleeve capable of isolating or communicating the one or more ports with an ID of the tubular. A method for effecting precision formation treatment is included.

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Номер записи: 4
16-08-2012 дата публикации

Flow control device and methods for using same

Номер: US20120205122A1
Автор: Andreas Peter, Carsten Freyer, Hans-Jurgen Faber, Marcus Oesterberg, Thomas Kruspe
Принадлежит: Baker Hughes Inc

An apparatus for controlling flow of a fluid includes a closure member, a biasing member applying a biasing force to the closure member, and a sealing member receiving the closure member. A dampener is operatively connected to the closure member and may resist a force applied to the closure member. A fluid seal may be formed when the biasing member presses the closure member against the sealing member. The apparatus may include a wellbore tubular in which the fluid conduit is formed and the closure member and sealing member may cooperate to control fluid flow along the fluid conduit. The apparatus may include an actuator configured to control the force applied to the closure member. The actuator may adjust the biasing force, and/or the dampening force. Also, a controller may control the actuator and may be responsive to a signal generated at a surface location, a signal generated at a downhole location, and/or a signal generated by a sensor.

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Номер записи: 5
11-10-2012 дата публикации

Dual Pipe For Increased Fluid Flow

Номер: US20120255790A1
Автор: Adam R Hall, Richard F. Sharp
Принадлежит: Charles Machine Works Inc

A dual pipe drill string system having increased fluid flow. The dual pipe system comprises a plurality of pipe sections, each pipe section having an inner rod and an outer pipe. The inner rod and the outer pipe of each pipe section may be coupled to the inner rod and outer pipe of an adjacent pipe section. An annulus between the inner rod and the outer pipe defines a fluid flow path through the dual pipe system. The outer pipe defines a shoulder at each end of an individual pipe section. The inner rod defines at least one stop for maintaining the inner rod within the outer pipe. A spacing assembly disposed around the circumference of the inner rod defines paths for fluid flow and maintains a minimum distance between the stop and the shoulder at one end of outer pipe of the pipe section.

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Номер записи: 6
15-11-2012 дата публикации

Offshore universal riser system

Номер: US20120285697A1
Автор: Charles R. Orbell, Christian Leuchtenberg, Craig W. Godfrey
Принадлежит: Halliburton Energy Services Inc

An offshore universal riser system may include a valve module which selectively permits and prevents fluid flow through a flow passage extending longitudinally through a riser string. An anchoring device may releasably secure the valve module in the passage. A method of constructing a riser system may include the steps of installing the valve module in the passage, and installing at least one annular seal module in the passage. The annular seal module may prevent fluid flow through an annular space between the riser string and a tubular string positioned in the passage. Drilling methods may include injecting relatively low density fluid compositions into the annular space, and selectively varying a restriction to flow through a subsea choke in a drilling fluid return line. The riser string, including housings for the various modules and external control systems, may be dimensioned for installation through a rotary table.

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Номер записи: 7
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: 8
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: 9
10-01-2013 дата публикации

Apparatus and Method for Well Operations

Номер: US20130008647A1
Автор: Daniel David Gleitman, Ronald Johannes Dirksen, William W Shumway
Принадлежит: Halliburton Energy Services Inc

A method for modifying a return fluid in a wellbore comprising disposing at least one valve along a drill pipe section of a drill string in the wellbore. At least one parameter of interest is determined at at least one location along the wellbore. At least one valve is controllably actuated to discharge at least a portion of at least one fluid from inside the drill string to an annulus in the wellbore to modify a local property of the return fluid in the annulus based at least in part on the measured parameter of interest.

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Номер записи: 10
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: 11
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: 12
31-01-2013 дата публикации

Downhole Actuating Apparatus

Номер: US20130025868A1
Автор: Colin Smith, Daniel George Purkis
Принадлежит: Petrowell Ltd

A mechanical counting device for actuating a plurality of output devices, the device comprising: linear indexing means adapted to count a plurality of actuating signals and to cause actuation of the output devices when a predetermined number of actuating signals for each output device has been received, wherein the mechanical counting device is adapted to cause actuation of a particular output device when a different predetermined number of actuating signals has been received such that the output devices are sequentially actuable.

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Номер записи: 13
31-01-2013 дата публикации

Sliding Sleeve Valve with Feature to Block Flow Through the Tool

Номер: US20130025877A1
Автор: Gregory Lee Hern, Larry Palmer, Robin D. Robinson-Brown
Принадлежит: Baker Hughes Inc

Sliding sleeve valves that include a housing with an axial flowbore defined along its length and at least one lateral fluid port disposed through the housing. One or more sliding sleeve members are disposed within the flowbore and carry first and second ball seats. Landing a first ball onto the first ball seat will move the valve from a first position wherein lateral flow is blocked to a second position wherein lateral flow is permitted. Landing a second ball onto the second ball seat will move the valve to a third position wherein lateral flow is again blocked and axial flow is permitted.

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Номер записи: 14
21-02-2013 дата публикации

Manifold string for selectivity controlling flowing fluid streams of varying velocities in wells from a single main bore

Номер: US20130043031A1
Автор: Bruce A. Tunget
Принадлежит: Individual

A set of manifold string members usable to selectively control separate flowing fluid streams of varying velocities for operations of well construction, injection or production of fluid mixtures of liquids, gases and/or solids, that can be injected into, or taken from, one or more proximal regions of a subterranean passageway, underground cavern, hydrocarbon or geothermal reservoir. Fluid communicated through a manifold string radial passageway of a manifold crossover, between conduit strings and at least one other conduit, can be controlled with at least one flow controlling member, communicating with a passageway member from an innermost, concentric, and/or annular passageway. Fluid communication can be selectively controlled for various configurations of one or more substantially hydrocarbon and/or substantially water wells, below a single main bore and wellhead.

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Номер записи: 15
21-03-2013 дата публикации

PRESSURE CONTROLLED WELL CONSTRUCTION AND OPERATION SYSTEMS AND METHODS USABLE FOR HYDROCARBON OPERATIONS, STORAGE AND SOLUTION MINING

Номер: US20130068473A1
Автор: Tunget Bruce A.
Принадлежит:

Apparatus and methods for fluidly communicating between conduit strings and wells through crossovers forming a subterranean manifold string, usable for pressure contained underground hydrocarbon operations, storage and solution mining. Concentric conduits enable fluid communication with one or more subterranean regions through an innermost passageway usable for communicating fluids and devices engagable with a receptacle of the manifold. A wall of the manifold string and/or a selectively placed fluid control device diverts fluid mixture flow streams from one passageway to another radially disposed inward or outward passageway to selectively control pressurized fluid communication, thereby forming a plurality of pressure bathers. The pressure bathers can be used to selectively communicate fluid mixtures to and from a reservoir for hydrocarbon operations, solution mining, and/or control of a storage cushion space during such operations. 12323232323232323128. An apparatus ( , C , F , I , S , T , V , Z , ) for forming a manifold string usable to selectively access and communicate fluid mixture flow streams through a plurality of conduits within or between one or more wells extending from a single main bore for at least one of hydrocarbon and solution mining and reservoir operations , the apparatus comprising:{'b': 23', '2', '2', '2', '2', '2', '39', '24', '24', '24', '24', '24', '24', '25', '61', '128, 'at least one manifold crossover apparatus () having a first plurality of conduits (, A, B, C, D, ) at an upper end and a second plurality of conduits at a lower end, wherein the first plurality of conduits comprise at least one intermediate concentric passageway (, A, B, X, Y, Z) disposed about an inner passageway () for accessing a reservoir and communicating fluids to and from at least one subterranean fluid control device (, ) to enable selective control of fluid communication in said passageways, conduits, wells, or combinations thereof; and'}{'b': 75', '75, 'a first ...

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Номер записи: 16
11-04-2013 дата публикации

Fluid Partition Unit

Номер: US20130087389A1
Автор: Hole Ove, Syse Harald
Принадлежит: REELWELL AS

The present invention regards a method to be used when performing drilling in a well bore, comprising: positioning a dual bore drill pipe with a tool at on one end into a well bore, thereby forming an outer annulus between the well bore wall and the pipe and two inner bores within the pipe, dividing the outer annulus into two different sections along the longitudinal axis of the drill pipe, at least at one location close to the tool, providing a first fluid in the outer annuls and providing a second fluid within the drill pipe and around the tool, and a device. 1. A method to be used when performing drilling in a well bore , comprising:positioning a dual bore drill pipe with a tool at on one end into a well bore, thereby forming an outer annulus between a wall of the wellbore and the pipe and two inner bores within the pipe,dividing the outer annulus into two different sections along the longitudinal axis of the drill pipe,at least at one location close to the tool, providing a first fluid in the outer annulus and providing a second fluid within the drill pipe and around the tool.2. The method according to claim 1 , wherein the outer annulus is divided into two different sections where there is substantially no pressure difference across the divider element.3. The method according to claim 1 , further comprising circulating the second fluid within the drill pipe through the two bores in the drill pipe.4. The method according to claim 1 , further comprising circulating the second fluid into the well bore through a second inner annular space formed by one of the bores in the pipe claim 1 , and out of the well bore through a central bore formed by the other bore of the dual bore drill pipe.5. The method according to claim 1 , further comprising providing the second fluid with a density which is less than a density of the first fluid claim 1 , whereby the density of the fluids are such that the pipe is at least partly floating in the first fluid in the outer annulus.6. ...

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Номер записи: 17
11-04-2013 дата публикации

Gate valve, method for returned drilling mud pressure control and/or well killing, and uses of a gate valve

Номер: US20130087733A1
Автор: Nils Lennart Rolland
Принадлежит: Statoil Petroleum ASA

A gate valve is provided for returned drilling mud pressure control and/or well killing. The gate valve includes a flow passage; and a gate member movable for intersecting the flow passage. The gate member includes a gate port which extends from one face to an opposite face of the gate member and is alignable with the flow passage for allowing material in the flow passage to pass through the gate member, and a groove or recess is provided in an inner wall of the gate port, the groove or recess extending from the one face to the opposite face of the gate member. A method is provided for returned drilling mud pressure control and/or well killing, and uses of a gate valve.

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Номер записи: 18
02-05-2013 дата публикации

Apparatus and methods for facilitating the connection of tubulars using a top drive

Номер: US20130105178A1
Автор: Bernd-Georg Pietras
Принадлежит: Weatherford Lamb Inc

An apparatus for facilitating the connection of tubulars using a top drive, the apparatus having a supporting member connectable to said top drive characterized in that it further comprises an internal tool for engaging said tubular and an external clamping device for engaging said tubular.

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Номер записи: 19
09-05-2013 дата публикации

Split Ring Shift Control for Hydraulic Pulse Valve

Номер: US20130112427A1
Автор: Kolle Jack J., Theimer Kenneth J.
Принадлежит: Tempress Technologies, Inc.

A hydraulic pulse valve for use in downhole tools includes a split ring seal to limit the fluid flow available to shift a poppet in the valve from an open position to a closed position. The split ring seal provides relatively long and repeatable pressure pulses, which improve the effectiveness of the hydraulic pulse valve for borehole applications. 1. A hydraulic pulse valve for generating pressure pulses in a conduit in which the hydraulic pulse valve is disposed , comprising: (i) a poppet that is reciprocally movable between a closed position in which it at least partially blocks a pressurized fluid from flowing through a throat of a poppet seat in the valve assembly, and an open position in which the pressurized fluid flows through the throat of the poppet seat, a reciprocating motion of the poppet between the closed position and the open position generating the pressure pulses in the conduit; and', '(ii) a pilot that is disposed within the poppet and reciprocates between disparate first and second positions to periodically alter fluid communication paths within the valve assembly, alteration of the fluid communication paths causing the poppet to reciprocate between the closed position and the open position; and, '(a) an elongate housing in which is disposed a valve assembly, the valve assembly including(b) a sliding seal that controls leakage of a pressurized fluid through the valve assembly.2. The hydraulic pulse valve of claim 1 , wherein the sliding seal comprises a split ring that is actuated by a pressure differential between an inner surface and an outer surface of the split ring.3. The hydraulic valve of claim 2 , wherein the split ring limits leakage of the pressurized fluid into a cavity defined at least in part by the pilot claim 2 , so that as the pilot moves between the first and second positions relative to the split ring claim 2 , the cavity passes the split ring claim 2 , and the split ring then no longer limits leakage of the pressurized fluid ...

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Номер записи: 20
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: 21
30-05-2013 дата публикации

Reverse circulation bit assembly

Номер: US20130133956A1
Автор: Jeffery T. Ross, Kenneth M. Curry, Kyle E. Johnson, Mark L. Jones
Принадлежит: Newtech Drilling Products LLC

A drill bit assembly for boring including a drill bit and a bit sub. A front bit end has a plurality cutting elements at a forward face of the front bit end and a first fluid return passage extending through the drill bit to a rear bit end. The bit sub couples to the rear bit end. The bit sub includes a bore disposed at a front sub end sized and shaped to receive the rear bit end of the drill bit. A plurality of legs extends from a mid-sub region toward the front sub end between pairs of cutting elements. The plurality of legs has a fluid delivery passage disposed therein with the fluid delivery passage extending from the plurality of legs to a rear sub bit end. The bit sub has a second fluid return passage connecting the first fluid return passage to the rear sub bit end.

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Номер записи: 22
11-07-2013 дата публикации

Nanoparticle Kinetic Gas Hydrate Inhibitors

Номер: US20130175046A1
Автор: Alexandra Clare Morrison
Принадлежит: Halliburton Energy Services Inc

Inhibiting gas hydrate formation while transporting hydrocarbon fluids may include providing a kinetic gas hydrate inhibitor, adding the kinetic gas hydrate inhibitor to a fluid capable of producing gas hydrates, and transporting the fluid that comprises the kinetic gas hydrate inhibitor. Generally a kinetic gas hydrate inhibitor may include a heterocyclic compound comprising nitrogen, e.g., poly(vinyl pyrrolidone).

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Номер записи: 23
18-07-2013 дата публикации

Nested dual drill pipe

Номер: US20130181438A1
Автор: Espen Alhaug, Harald Syse
Принадлежит: REELWELL AS

A dual drill pipe includes a joint of drill pipe having a pin end and a box end. An inner pipe is disposed within an internal bore of the joint of drill pipe. A retainer is disposed proximate each longitudinal end of the inner pipe. A retaining feature is formed in an interior of the joint of drill pipe proximate each longitudinal end. The features are configured to engage a respective one of the retainers so that the inner pipe is held in longitudinally fixed relation to the joint of drill pipe.

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Номер записи: 24
15-08-2013 дата публикации

PUMP POSITIONED AT A DRILL BIT

Номер: US20130206482A1
Автор: Reimers Nils
Принадлежит: Tomax AS

An ejector pump or jet pump is for use in the drilling of wells in the underground for the production of oil and gas, for example, in which it is the purpose to prevent the total fluid pressure at the bottom of the borehole from reaching a level which constitutes a risk of cracking the rock or sediment being drilled, thus resulting in leakage and circulation failure. For this purpose, the pump is placed between the drill bit and the drill string by means of standard pipe couplings and formed as an elongated cylindrical element with external, longitudinal pump elements with nozzles directed in such a way that low pressure is established externally at the drill bit. The pump is operated by the drilling fluid which is supplied in the normal way from the drill string. The pressure difference across the pump is used to draw a secondary flow of drilling fluid from the established borehole through internal bores in the pump casing to the ordinary nozzles in the drill bit. This fluid flow provides necessary cleaning of the drill bit and drilling surface but, then, will have a highest possible pressure that is limited upwards to the level established in the borehole and so that possible clogging around the drill bit will not cause an increased risk of drilling fluid leaking into the underground. 1. A pump apparatus comprising a pump positioned at a drill bit connected to a drill string wherein an entire fluid flow of the drill string is directed to at least one ejector nozzle which has its outlet directed away from the drill bit in an annulus between the drill string and the borehole , at least one cut-out extending between the annulus at the outlet side of the ejector nozzle and the nozzles of the drill bit.2. The apparatus in accordance with claim 1 , wherein a bore extending between the pipe bore of the drill string and the ejector nozzle claim 1 , and the cut-out are arranged with valves allowing alternative flow directions and restrictions.3. The apparatus in accordance ...

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Номер записи: 25
29-08-2013 дата публикации

Methods and multi-purpose apparatus for dispensing and circulating fluid in wellbore casing

Номер: US20130220610A1
Автор: Burney J. Latiolais, Jr., David L. Sipos, Donald E. Mosing, Keith T. Lutgring, Samuel P. Hawkins, Iii
Принадлежит: Franks International LLC

Embodiments disclosed herein relate to an apparatus to fluidly couple to a casing string. The apparatus may include a fill-up and circulating tool having a flow path extending therethrough, in which the fill-up and circulating tool may be configured to fluidly seal internally within an upper end of the casing string. The apparatus may further include a cementing head assembly having a flow path extending therethrough, in which the flow path of the cementing head assembly is fluidly coupled to the flow path of the fill-up and circulating tool, and a releasing mechanism coupled to the cementing head assembly, in which the releasing mechanism is configured to release a fluid-conveyed sealing device through the cementing head assembly and into the fill-up and circulating tool.

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Номер записи: 26
29-08-2013 дата публикации

Flow stop valve

Номер: US20130220634A1
Автор: Large Robert, Swietlik George
Принадлежит: Pilot Drilling Control Ltd

A flow stop valve ( 20 ) positionable in a downhole tubular ( 6 ), and a method, are provided. The flow stop valve ( 20 ) is in a closed position when a pressure difference between fluid outside the downhole tubular ( 6 ) and inside the downhole tubular ( 6 ) at the flow stop valve ( 20 ) is below a threshold value, thereby preventing flow through the downhole tubular. The flow stop valve ( 20 ) is in an open position when the pressure difference between fluid outside the downhole tubular ( 6 ) and inside the downhole tubular ( 6 ) at the flow stop valve ( 20 ) is above a threshold value, thereby permitting flow through the downhole tubular ( 6 ).

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Номер записи: 27
12-09-2013 дата публикации

Stabilizer with Drilling Fluid Diverting Ports

Номер: US20130233620A1
Автор: E. Edward Rankin
Принадлежит: Rite Increaser LLC

Described are drilling subs that may be connected in a drill string for reducing the accumulation of debris on the exterior of the drill string or otherwise facilitating the return of drilling fluid during drilling operations. A plurality of radially spaced stabilizing blades protrude from an exterior surface of the drilling subs to define exterior flow channels therebetween through which drilling fluid returning to the surface may is directed. Diverting nozzle passages are provided that extend between an inner axial passage of the drilling subs and the exterior surface of the drilling subs. The diverting nozzle passages exhibit a radial spacing corresponding to a radial spacing of the exterior flow channels such that drilling fluid discharged from the diverting nozzle passages is directed toward the exterior flow channels.

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Номер записи: 28
19-09-2013 дата публикации

METHOD FOR CONTINUOUS FORMATION CORE SAMPLING

Номер: US20130240267A1
Автор: Aleksandersen Jostein, Hole Ove
Принадлежит: REELWELL AS

The present invention regards a method for performing core sampling during drilling of wells, comprising the steps of providing a dual bore drill pipe with drill bit in the end in the well bore, providing means to introduce a drill liquid into an annular space of the drill pipe and return it together with drill cuttings to the surface through centrally arranged return line in the dual bore drill pipe, removing larger cuttings at outlet of return pipe, and perform core testing on these cuttings, knowing where the cuttings come from in the well. The invention also regards a device for performing the invention. 1. A method for performing core sampling during drilling of wells , comprising:providing a dual bore drill pipe with a drill bit at an end thereof in a well bore,providing means to introduce a drilling liquid into an annular space of the drill pipe and return the drilling liquid together with drill cuttings to the surface through a centrally arranged return pipe in the dual bore drill pipe,removing cuttings at an outlet of the return pipe, andperforming core testing on the removed cuttings.2. The method of claim 1 , wherein the drilling liquid is introduced into the annular space at a velocity of more than 1 meter per second.3. The method of claim 1 , wherein the cuttings are removed continuously or at intervals.4. The method of claim 3 , wherein cuttings of a given size range are removed for testing.5. The method of claim 1 , wherein the return pipe is provided with an equal inner diameter between the two ends of the return pipe.6. The method of claim 1 , wherein the drilling liquid is lighter than conventional drilling mud and makes less contamination of the removed cuttings.7. The method of claim 1 , wherein a flow of the drilling liquid in the dual bore drill pipe is set up in the drill pipe before the drilling liquid is guided to the drill bit.8. A device for performing core sampling during drilling of wells claim 1 , comprising:a dual bore drill pipe with ...

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Номер записи: 29
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: 30
10-10-2013 дата публикации

Downhole Draw-Down Pump and Method

Номер: US20130264067A1
Автор: Williams Danny T.
Принадлежит:

An apparatus and method for drawing down a fluid level in a well bore. The apparatus and method includes a first tubular disposed within the well bore forming a well bore annulus therein, an annular nozzle connected to an end of the first tubular, and a second tubular concentrically disposed within the first tubular forming a micro annulus. The annular nozzle includes an annular adapter and a suction tube having an internal section and an external section with an outer diameter less than the outer diameter of the first tubular. The external section of the suction tube may be positioned within a restricted section of the well bore, for example, within a restricted well bore section containing a casing liner to drawn down the fluids and solids within the well bore to produce hydrocarbons. 1. An apparatus for suctioning fluids and solids from a well bore , the well bore in communication with a hydrocarbon bearing reservoir , the apparatus comprising:a) a first tubular member disposed within said well bore forming a well bore annulus therein, said first tubular member having a first end and an inner portion;b) a suction tube having an inner portion with an unobstructed circular flow area for passage of said fluids and solids within said well bore annulus, an outer portion, an internal section and an external section, said internal section of said suction tube extending into said inner portion of said first tubular member, said external section of said suction tube extending external of said first tubular member within a restricted section of said well bore annulus, said restricted section being in communication with said well bore annulus so that said well bore annulus and said restricted section receives hydrocarbons, and said restricted section is positioned below the hydrocarbon reservoir;c) a second tubular member concentrically disposed within said first tubular member forming a micro annulus therein for injection of a power fluid, said second tubular member having ...

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Номер записи: 31
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: 32
17-10-2013 дата публикации

FLOW RESTRICTOR AND DRILLING ASSEMBLY

Номер: US20130270013A1
Автор: Horsch John
Принадлежит:

A flow restrictor comprising a body adapted to restrict a flow of fluid through a drill rod passage, the body having a coupling for coupling said body into the drill rod passage, said body defining an upstream fluid receiving passage, a downstream fluid egress passage, and a passage of restrictive diameter between said passages to limit the flow of fluid in the drill rod passage. 1. A flow restrictor comprising a body adapted to restrict a flow of fluid through a drill rod passage , the body having a coupling for coupling said body into the drill rod passage , said body defining an upstream fluid receiving passage , a downstream fluid egress passage , and a passage of restrictive diameter between said upstream and downstream fluid passages to limit the flow of fluid in the drill rod passage.2. The flow restrictor according to claim 1 , wherein said passages are concentrically aligned with one another along a central longitudinal axis of the drill rod passage.3. The flow restrictor according to claim 1 , wherein the passage of restrictive diameter has a diameter from about 25% to about 50% of the diameter of the drill rod passage.4. The flow restrictor according to claim 1 , wherein the passage of restrictive diameter has a circular cross-section.5. The flow restrictor according to claim 1 , wherein the upstream fluid receiving passage inwardly tapers from an upstream end thereof to the passage of restrictive diameter.6. The flow restrictor according to claim 5 , wherein the upstream end of said passage has a diameter greater than about 60% of the drill rod passage.7. The flow restrictor according to claim 1 , wherein the downstream fluid egress passage has a polygonal cross-section.8. The flow restrictor according to claim 7 , wherein the polygonal cross-section is hexagonal claim 7 , star-shaped claim 7 , square claim 7 , or a rectangular slot.9. The flow restrictor according to claim 7 , wherein the polygonal cross-section is adapted to receive a complementary ...

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Номер записи: 33
24-10-2013 дата публикации

VALVE FOR COMMUNICATION OF A MEASUREMENT WHILE DRILLING SYSTEM

Номер: US20130277119A1
Автор: Bonner Stephen D., Kirby Robert Rudolph, Linyaev Eugene, Rogers John Preston
Принадлежит:

A valve for communication of a measurement while drilling system includes a first structure having a central portion and one or more elongate portions radially extending from the central portion, and a second structure having one or more portions which substantially bound a central orifice region and one or more elongate orifice regions radially extending from the central orifice region. At least one of the first structure and the second structure is configured to be rotated about a rotation axis to produce a relative rotation between the first structure and the second structure such that a flow path through which mud can flow varies as the at least one of the first structure and the second structure rotates about the rotation axis. The central portion has a maximum inscribed circle encircling the rotation axis and having a first radius and the central orifice region has a maximum inscribed circle encircling the rotation axis and having a second radius greater than the first radius. 1. A valve for communication of a measurement while drilling system , the valve comprising:a first structure having a central portion and one or more elongate portions radially extending from the central portion; anda second structure having one or more portions which substantially bound a central orifice region and one or more elongate orifice regions radially extending from the central orifice region,wherein at least one of the first structure and the second structure is configured to be rotated about a rotation axis to produce a relative rotation between the first structure and the second structure such that a flow path through which mud can flow varies as the at least one of the first structure and the second structure rotates about the rotation axis, the flow path defined at least by the first structure and the second structure,wherein the central portion has a maximum inscribed circle encircling the rotation axis and having a first radius and the central orifice region has a ...

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Номер записи: 34
31-10-2013 дата публикации

Gravity Based Fluid Trap

Номер: US20130284519A1
Автор: Vestavik Ola Michael
Принадлежит: REELWELL AS

A method to be used when performing drilling in a well bore and a device for performing the method are disclosed. The method includes positioning in the well bore a drill string comprising at least two pipe conduits, an upper end, and a lower end comprising a drilling tool, thereby forming an outer annulus between the well bore wall and the drill string. A well bore section comprising at least one u-shaped section is drilled. A first fluid with a first density is fed into the outer annulus above the u-shaped section, and a second fluid with a second density is provided within the drill string and around the tool, where the first density is larger than the second density. 1. A method to be used when performing drilling in a well bore , comprising:positioning in the well bore a drill string comprising at least two pipe conduits, an upper end, and a lower end coupled to a drilling tool, thereby forming an outer annulus between the well bore wall and the drill string;drilling a well bore section, the drilling comprising forming at least one fluid trap in the well bore section, the fluid trap being a u-shaped deviation in the well bore section;feeding a first fluid with a first density into the outer annulus above the fluid trap; andcirculating a second fluid with a second density through the drill string and around the drilling tool;wherein the first density is larger than the second density and a fluid interface is formed between the first fluid and the second fluid in the outer annulus during the circulating.2. The method according to claim 1 , wherein circulating the second fluid through the drill string comprises circulating the second fluid through the at least two pipe conduits in the drill string.3. The method according to claim 1 , wherein circulating the second fluid through the drill string comprises circulating the second fluid into the well bore through a second inner annular space formed by a first of the at least two pipe conduits in the drill string and ...

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Номер записи: 35
14-11-2013 дата публикации

Downhole vacuum sub

Номер: US20130299175A1
Автор: Steven D. Matthews
Принадлежит: ATD dba Air Tech Drilling LLC

A vacuum sub ( 8 ) for use in a well bore ( 12 ), the vacuum sub ( 8 ) having a cylindrical casing ( 28 ) with an upstream end ( 14 ) and a downstream end ( 16 ). The upstream and downstream ends ( 14, 16 ) are designed to attach to components of a downhole assembly ( 6 ) in a well bore ( 12 ). The vacuum sub ( 8 ) includes a port ( 18 ) in the cylindrical casing ( 28 ) that provides access between the inside ( 20 ) of the cylindrical casing ( 28 ) to the outside ( 22 ) of the cylindrical casing ( 28 ). The port ( 18 ) is angled so that when air passes through the port ( 18 ) from the inside ( 20 ) of the casing ( 28 ) to the outside ( 22 ) of the casing ( 28 ), the air is directed upwardly through the well bore ( 12 ) in an upstream direction, thereby creating a vacuum in the well bore ( 12 ) below the port ( 18 ).

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Номер записи: 36
14-11-2013 дата публикации

DRILLING APPARATUS

Номер: US20130299240A1
Автор: LEUCHTENBERG Christian
Принадлежит: MANAGED PRESSURE OPERATIONS PTE. LTD.

A drilling system including a drill string () which extends into a borehole (), and a well closure system which contains fluid in the annular space () in the borehole around the drill string, the well closure system having a side bore whereby controlled flow of fluid out of the annular space in the borehole around the drill string is permitted, the side bore being connected to fluid return line () which extends from the side bore to a fluid reservoir (), there being provided in the fluid return line a valve () which is operable to restrict flow of fluid along the fluid return line to variable extent, and a flow meter () operable to measure the rate of flow of fluid along the fluid return line, the flow meter being located between the valve and the side bore, wherein a filter () is provided between the flow meter and the side bore, the filter including a plurality of apertures which have a smaller cross-sectional area than the smallest fluid flow lines in the flow meter. 1. A drilling system including a drill string which extends into a borehole , and a well closure system which contains fluid in the annular space in the borehole around the drill string , the well closure system having a side port whereby controlled flow of fluid out of the annular space in the borehole around the drill string is permitted , the side port being connected to fluid return line which extends from the side port to a fluid reservoir , there being provided in the fluid return line a valve which is operable to restrict flow of fluid along the fluid return line to variable extent , and a flow meter operable to measure the rate of flow of fluid along the fluid return line , the flow meter being located between the valve and the side port , wherein a filter is provided between the flow meter and the side port , the filter including a plurality of apertures which have a smaller cross-sectional area than the smallest fluid flow lines in the flow meter.2. A drilling system according to wherein ...

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Номер записи: 37
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: 38
05-12-2013 дата публикации

Rock drilling rig and method of driving compressor

Номер: US20130319765A1
Автор: Piipponen Juha, Sormunen Tapani
Принадлежит: SANDVIK MINING AND CONSTRUCTION OY

A rock drilling rig and a method of driving a compressor, wherein the rock drilling rig is operated by a combustion engine and is provided with a flushing system including a compressor for producing pressurized air. The compressor is driven by an electric drive motor. The combustion engine is connected to drive a generator, which produces electric energy that is stored in an energy storage. The stored electric energy can be utilized in driving the compressor. 1. A rock drilling rig comprising:a movable carrier;a tramming unit for performing transfer drive of the carrier;at least one drilling boom movable relative to the carrier and provided with a drilling unit including a rock drilling machine;a flushing system having at least one compressor for producing pressurized air utilized in flushing a drill hole during drilling;a combustion engine for producing kinetic energy;at least one generator arranged to be driven by the combustion engine and arranged to produce electric energy to an electric system; andat least one energy storage connected to the electric system, wherein the rock drilling rig is combustion engine operated, needed electric energy of the rock drilling rig is produced by the at least one generator; and the at least one compressor of the flushing system is driven by means of at least one electric compressor drive motor connected to the electric system.2. A rock drilling rig as claimed in claim 1 , wherein the at least one electric compressor drive motor is driven by means of electric energy received from the at least one energy storage.3. A rock drilling rig as claimed in claim 1 , wherein the at least one electric compressor drive motor is driven by means of electric energy received from the at least one energy storage and the at least one generator.4. A rock drilling rig as claimed in claim 1 , wherein the rock drilling rig includes at least one control unit for controlling the operation of the flushing system; the control unit is arranged to monitor ...

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Номер записи: 39
05-12-2013 дата публикации

TELEMETRY OPERATED CIRCULATION SUB

Номер: US20130319767A1
Автор: Odell Albert C., Wilson Timothy L.
Принадлежит: WEATHERFORD/LAMB, INC.

A method of drilling a wellbore includes drilling the wellbore by injecting drilling fluid through a drill string extending into the wellbore from surface and rotating a drill bit of the drill string. The drill string further includes a circulation sub having a port closed during drilling. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to the surface via an annulus formed between an outer surface of the tubular string and an inner surface of the wellbore. The method further includes after drilling at least a portion of the wellbore: halting drilling; sending a wireless instruction signal from the surface to a downhole portion of the drill string by articulating the drill string, acoustic signal, or mud pulse, thereby opening the port; and injecting drilling fluid through the drill string and into the annulus via the open port. 1. A circulation sub for use in a wellbore , comprising:a tubular body having a bore therethrough, a port through a wall thereof, and a connector at each longitudinal end thereof;a tubular mandrel longitudinally movable relative to the body between an open position and a closed position, the mandrel having a bore therethrough and a port through a wall thereof corresponding to the body port, the mandrel wall in alignment with the body port in the closed position and the ports being aligned in the open position;a first biasing member operable to move the mandrel to the open position;a sleeve longitudinally movable relative to the body between an open position and a closed position, a wall of the sleeve in alignment with the body port in the closed position and the sleeve wall being clear of the body port in the open position;an actuator selectively operable to restrain the sleeve in the open and closed positions; and move the mandrel to the closed position, and', 'move the sleeve to the open position,, 'a piston operable towherein the body port and a bore of the ...

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Номер записи: 40
12-12-2013 дата публикации

METHODS FOR USING COMPLEMENTARY SURFACTANT COMPOSITIONS

Номер: US20130331301A1
Автор: Falana Olusegun M., Marshall Edward C., Zamora Frank
Принадлежит: CLEARWATER INTERNATIONAL, LLC

Methods for using complementary surfactant systems and downhole fluids, where the systems are tailored to foam the fluids, which include the analyzed crude and/or condensate. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. (canceled)7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. (canceled)14. (canceled)15. (canceled)16. A method for foaming a fluid including a crude and/or condensate comprising:analyzing a crude and/or a condensate from a producing formation, a first surfactant subsystem comprising a fluorinated surfactant including fluoroaliphatic polymeric ester (PAPE) surfactants,', 'a second surfactant subsystem comprising silicon surfactant, and', 'a solvent subsystem based on the wt. % of the surfactant subsystems comprising terpenes and mixture of terpenes derived from citrus plants including a biodegradable blend of paraffins, olefins, naphthenes, esters, and oxygenates, d-limonenes, orange terpenes, lemon terpenes, grapefruit terpenes, orange oil, lemon oil, other citrus terpenes, other citrus oils, or mixtures and combinations thereof,', 'where a weight ratio of the first surfactant subsystem to the second surfactant subsystem is between about 10:1 and about 1:10 and where the system is tailored to foam the fluid including the analyzed crude and/or condensate present in a producing formation,, 'preparing a surfactant system includingadding an effective amount of the surfactant system to a downhole fluid, where the effective amount is sufficient to form a stable foam upon addition of a gas, andadding a foaming amount of a gas to the downhole fluid sufficient to convert the fluid into a stable foam.17. The method of claim 16 , wherein the fluid is a drilling fluid and the method further comprises:pumping the drilling fluid into a borehole during drilling through a drill bit, where the surfactant system is tailored to foam the drilling fluid, which includes the analyzed crude and/or condensate, ...

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Номер записи: 41
02-01-2014 дата публикации

Liner flotation system

Номер: US20140000906A1
Автор: Robert Christopher Stratton, Scott Earl Williamson
Принадлежит: Individual

A liner flotation system comprises a liner, a first valve, and a second valve configured to form a gas filled chamber within the liner. The first valve is operable to allow fluid flow into the chamber, and the second valve operable to allow fluid flow out of the chamber. A sleeve is disposed in the chamber, and the first valve is movable into engagement with the sleeve to provide an indication of a position of the first valve. A method of securing a liner in a well comprises lowering a liner having a gas filled chamber in the well, actuating a valve to open fluid flow into the chamber, removing the gas from the chamber, and moving the valve into engagement with a sleeve coupled to the liner to provide an indication of a position of the valve.

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Номер записи: 42
09-01-2014 дата публикации

VALVE ARRANGEMENT FOR A PRODUCTION PIPE

Номер: US20140008079A1
Автор: Aakre Haavard, Matheisen Vidar, Werswick Björnar
Принадлежит: STATOIL PETROLEUM AS

A tubular member has at least one drainage section including an inlet inlet and at least one self-adjustable flow control device to control the flow of fluid into the drainage section from a well. The flow control devices are located in an annular space surrounding a pipe between the inlet and an outlet is provided for fluid flowing into the drainage section. The annular space forms a flow path through the flow control device passing by a valve body arranged to adjust the flow area in response to the pressure difference across the flow control device and/or changes in density of the fluid. The flow control device includes a valve seat cooperating with the valve body. The valve body includes an annular resilient valve member arranged to be deformed at least in a radial direction, in order to reduce or increase the flow area through the flow control device. 125-. (canceled)26. A tubular member having at least one drainage section comprising at least one inlet or aperture and at least one self-adjustable flow control device to control the flow of fluid into the drainage section from a well formed in a subterranean reservoir , wherein each of the flow control devices are located in an annular space surrounding a base pipe between said inlet or aperture and at least one outlet is provided for fluid flowing into the drainage section , said annular space forming a flow path through the flow control device passing by a valve body arranged to reduce or increase the flow area of the flow control device in response to the pressure difference across the flow control device and/or changes in density of the fluid , wherein the flow control device comprises a valve seat cooperating with the valve body , which valve body comprises an annular resilient valve member arranged to be deformed at least in a radial direction , in order to reduce or increase the flow area through the flow control device.27. The tubular member according to claim 26 , wherein the annular resilient valve ...

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Номер записи: 43
23-01-2014 дата публикации

System, Method And Apparatus For Controlling Fluid Flow Through Drill String

Номер: US20140020955A1
Автор: David S. Cramer, Michael J. Harvey
Принадлежит: General Downhole Tech Ltd XX

A device for limiting the flow of drilling fluid through a section of drill string includes a body with a hole in the periphery. Flow enters the device through one axial end, at least a portion of the flow exits through the other axial end. Some of the fluid flow can be diverted through the peripheral hole. A spring-biased axial piston has an approximately constant force throughout its range of travel. The piston moves axially in response to the changing fluid flow rate to ensure that a constant amount of flow exiting the axial end of the tool is achieved while diverting away excess flow through the side.

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Номер записи: 44
23-01-2014 дата публикации

Systems and methods for sonic subsurface material removal

Номер: US20140021772A1
Автор: Mark Knolle
Принадлежит: Longyear Tm Inc

A system for removing desired subsurface materials. A drilling system has a sonic drill head assembly capable of rotating a drill string and transmitting oscillating forces to the drill string. A material removal system comprises an outer tube attachable to the drill string. An inner tube has an outer diameter sized so that that at least a portion of the inner tube is positionable in an inner volume of the outer tube with an annular void defined between the outer tube and the inner tube. A distal end of the inner tube defines at least one opening such that an interior conduit of the inner tube is in fluid communication with the annular void outside of the distal end of the inner tube. Pressurized fluid can be urged from the annular void through the opening to the interior conduit, entraining the desired subsurface materials therein for removal to a discharge tank.

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Номер записи: 45
13-03-2014 дата публикации

Friction reduction assembly for a downhole tubular, and method of reducing friction

Номер: US20140069639A1
Автор: Gordon R. MacKenzie, Graeme K. KELBIE
Принадлежит: Baker Hughes Inc

A friction reduction assembly for a downhole tubular. The friction reduction assembly includes an electrically activated friction reduction sub. The sub includes a flowbore fluidically connected to a flowbore of the tubular and remaining open for fluid flow therethrough during both activated and non-activated states of the friction reduction sub. A friction reducer responsive to an indication of lockup of the tubular, wherein friction between the tubular and surrounding casing or borehole is reduced in an electrically activated state of the friction reduction sub. A method of reducing friction in a downhole tubular is also included.

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Номер записи: 46
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: 47
20-03-2014 дата публикации

TOOL STRING

Номер: US20140076582A1
Автор: Hallundbaek Jørgen
Принадлежит: WELLTEC A/S

The present invention relates to a tool string for being suspended in a well, the tool string extending in a longitudinal direction and comprising a first string part and a second string part, each having a centre axis and comprising; an electrical connection in a first end and a fluid channel extending at least partly through the string part. Furthermore, the tool string comprises a connecting element rotatably connected to one string part and adapted to be threadably connected to a threaded portion of the other string part to join the electrical connections of the first and second string parts. Furthermore, the present invention relates to a method for assembling two string parts of a tool string by rotating a connecting element. 2222324. A tool string according to claim 1 , wherein one of the string parts comprises at least two pipe connections ( claim 1 , claim 1 , ).32646. A tool string according to claim 1 , wherein one of the string parts comprises a guide pin () and the other string part comprises a hole () for receiving the guide pin when the string parts are mutually connected by the connecting element.460160227. A tool string according to claim 1 , wherein the connecting element comprises two connectable collar elements ( claim 1 , ) adapted to be mutually connected around a section () of one of the string parts.561. A tool string according to claim 1 , wherein the connecting element comprises an outer threaded portion ().62737b. A tool string according to claim 1 , wherein the connecting element is arranged around a protrusion () of one of the string parts having a reduced diameter () compared to a maximum diameter of the string part.728. A tool string according to claim 1 , wherein the connecting element is arranged in a recess () of one of the string parts claim 1 , whereby the connecting element is prevented from substantially moving in the longitudinal direction.829. A tool string according to claim 1 , wherein the connecting element is prevented ...

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Номер записи: 48
20-03-2014 дата публикации

GAS INJECTION FOR MANAGED PRESSURE DRILLING

Номер: US20140076636A1
Автор: JOHNSON ASHLEY BERNARD
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

Injection of gas into a managed pressure drilling system to provide for operation of the drilling system in a pressure window defined by the pore pressure of a formation being drilled and a fracture pressure of the formation. The gas is injected through gas injection ports and drilling fluids are allowed to flow between the drilling annulus and the gas injection system though a plurality of flow ports that are disposed vertically below the gas injection ports in the borehole being drilled. The gas injection ports and the flow ports are configured so that when gas is flowing through the gas injection ports, the flow ports are sealed. 1. A method for injecting gas into a drilling annulus surrounding a drillstring during a drilling process for drilling a borehole into a subterranean formation , where the drilling annulus comprises an annular space between the drillstring string and a casing string and the drillstring extends from a surface location down the borehole , the method comprising:pumping gas into the drilling annulus, wherein the gas is pumped into an injection pipe and through a set of one or more gas injection ports into the drilling annulus, and wherein the set of one or more gas injection ports are in fluid communication with the gas injection pipe and the drilling annulus;flowing drilling fluids between the drilling annulus and the gas injection pipe through a set of one or more flow ports, wherein the set of one or more flow ports are in fluid communication with the gas injection pipe and the drilling annulus, and wherein the set of one or more flow ports are a vertical distance below the set of one or more gas injection ports such that the set of gas injection ports are located between the set of one or more flow ports and the surface location; andsealing the set of one or more flow ports when gas is flowing from the drilling pipe through the set of one or more gas injection ports into the drilling annulus.2. The method of claim 1 , wherein the step of ...

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Номер записи: 49
27-03-2014 дата публикации

METHOD FOR INITIATING FLUID CIRCULATION USING DUAL DRILL PIPE

Номер: US20140083776A1
Автор: HØGSET Tore, Syse Harald
Принадлежит:

A method for operating a dual drill string disposed in a wellbore, the string having a shutoff valve for at least a fluid return drill string therein proximate a bottom end thereof includes pumping fluid into the fluid return string such that a pressure therein is substantially equal to a fluid pressure in the wellbore. Circulation of fluid in the wellbore is initiated by pumping fluid into a fluid supply string of the dual drill string such that the shutoff valve on the fluid return string opens to enable the fluid leaving the wellbore to enter the fluid return string. 1. A method for operating a dual drill string disposed in a wellbore , the string having a shutoff valve for at least a fluid return drill string therein proximate a bottom end thereof , comprising:pumping fluid into the fluid return string such that a pressure therein is substantially equal to a fluid pressure in the wellbore; andinitiating circulation of fluid in the wellbore by pumping fluid into a fluid supply string in the dual drill string such that the shutoff valve on the fluid return string opens to enable the fluid leaving the wellbore to enter the fluid return string.2. The method of wherein the dual drill string is a nested dual string and fluid is pumped into the wellbore through outer string of the nested dual string and a flow crossover claim 1 , and wherein the shutoff valve comprises a biasing device arranged to urge the shutoff valve to close when fluid is not pumped into the outer string.3. The method of wherein the biasing device comprises a spring.4. The method of further comprising pumping fluid into both strings until both the strings are substantially filled with fluid to the surface.5. The method of further comprising pressurizing a fluid supply string in the dual drill string substantially contemporaneously with the pumping fluid into the fluid return string. Not applicable.Not applicable.The disclosure relates generally to the field of dual drill pipe strings. More ...

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Номер записи: 50
03-04-2014 дата публикации

Apparatus, System, and Method for Controlling the Flow of Drilling Fluid in a Wellbore

Номер: US20140090888A1
Автор: Jerry E. Smith, Philip A. Strassle
Принадлежит: National Oilwell Varco LP

A drilling system includes a drill string extending through a BOP and a drilling fluid discharge coupling mounted to the BOP. In addition, the drilling system includes a drilling fluid control system configured to control a pressure or flow rate of a drilling fluid flowing through the discharge coupling. The drilling fluid control system includes a flow rate and pressure regulating device, a feedback controller system configured to operate the regulating device, and a first sensor configured to measure an actual pressure or flow rate of the drilling fluid flowing through the discharge coupling.

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Номер записи: 51
01-01-2015 дата публикации

REMEDIATION OF ASPHALTENE-INDUCED PLUGGING OF WELLBORES AND PRODUCTION LINES

Номер: US20150000915A1
Автор: FREEMAN John Justin, MILAM Stanley Nemec, TAYLOR Richard B., TEGELAAR Erik Willem
Принадлежит:

A method of treating a wellbore penetrating a subterranean formation comprising: providing an asphaltene solvent, wherein the asphaltene solvent comprises at least 75 mol % dimethyl sulfide and introducing the asphaltene solvent into the wellbore 1. A method of treating a wellbore penetrating a subterranean formation comprising:providing an asphaltene solvent, wherein the asphaltene solvent comprises at least 75 mol % dimethyl sulfide andintroducing the asphaltene solvent into the wellbore.2. The method of claim 1 , wherein the wellbore comprises one or more asphaltene deposits.3. The method of claim 2 , wherein the one or more asphaltene deposits comprise asphaltene accretions or sludges on a surface of the wellbore4. The method of claim 2 , further comprising contacting the one or more asphaltene deposits with the asphaltene solvent.5. The method of claim 2 , wherein the asphaltene solvent dissolves the one or more asphaltene deposits.6. The method of claim 1 , wherein the asphaltene solvent is first contact miscible with oil in or from the subterranean formation.7. The method of claim 1 , wherein the asphaltene solvent consists essentially of dimethyl sulfide.8. The method of claim 1 , wherein the asphaltene solvent further comprises up to 25 mol % decant oil.9. The method of claim 1 , further comprising producing oil from the subterranean formation simultaneously with introducing the asphaltene solvent into the wellbore.10. A method of treating a production flow line from a wellbore penetrating a subterranean formation comprising:providing an asphaltene solvent, the asphaltene solvent comprising at least 75 mol % dimethyl sulfide andintroducing the asphaltene solvent into the production flow line.11. The method of claim 10 , wherein the production flow line comprises one or more asphaltene deposits.12. The method of claim 11 , wherein the one or more asphaltene deposits comprise asphaltene accretions or sludges on a surface of the production flow line.13. The ...

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Номер записи: 52
06-01-2022 дата публикации

TERMINAL MODULES FOR DOWNHOLE FORMATION TESTING TOOLS

Номер: US20220003114A1
Автор: Babin Christopher Albert, Gisolf Adriaan, Goodwin Anthony Robert Holmes, Hsu Kai, Landsiedel Nathan Mathew, Palmer Daniel, Pop Julian, Slapal Miroslav
Принадлежит:

A method includes positioning a downhole acquisition tool in a wellbore in a geological formation. The method includes operating a pump module to gather information for a fluid outside of the downhole acquisition tool that enters the downhole acquisition tool from a first flowline, a second flowline, or both while the downhole acquisition tool is within the wellbore. Operating the pump module includes controlling a valve assembly to a first valve configuration that enables the fluid to flow into the downhole tool via the first flowline fluidly coupled to a first pump module. Operating the pump module includes controlling a valve assembly to a second valve configuration that enables the fluid to flow into the downhole tool via the second flowline fluidly coupled to a second pump module, and selectively using a turnaround module or a crossover portion disposed between the first flowline and the second flowline to permit discharging the fluid from one flowline to the other flowline by actuating a valve associated with the turnaround module when the first pump module or the second pump module is not in use. 1. A method comprising:positioning a downhole acquisition tool in a wellbore in a geological formation; controlling a valve assembly to a first valve configuration that enables the fluid to flow into the downhole tool via the first flowline fluidly coupled to a first pump module;', 'controlling a valve assembly to a second valve configuration that enables the fluid to flow into the downhole tool via the second flowline fluidly coupled to a second pump module; and', 'selectively using a turnaround module or a crossover portion disposed between the first flowline and the second flowline to permit discharging the fluid from one flowline to the other flowline by actuating a valve associated with the turnaround module when the first pump module or the second pump module is not in use., 'operating a pump module to gather information for a fluid outside of the downhole ...

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Номер записи: 53
05-01-2017 дата публикации

METHOD FOR DRILLING A WELL IN CONTINUOUS CIRCULATION AND DEVICE FOR INTERCEPTING AND REDISTRIBUTING FLUID USED IN THIS METHOD

Номер: US20170002615A1
Автор: Girola Giorgio
Принадлежит:

A method for drilling a well in continuous circulation and a device for intercepting and redistributing fluids for this drilling method, comprising a main chamber () communicating with a first auxiliary chamber () and with a second auxiliary chamber (), in which during the direct drilling flow (F) mode, said auxiliary chambers () are placed in fluid communication with each other. 11317567167. Device for intercepting and redistributing drilling fluid in drilling procedures for drilling a well in continuous circulation of said fluid , produced by means of a direct flow (F) and a radial flow (F) to the string of drill rods () , of the type comprising a main chamber () that communicates with a first auxiliary chamber () and with a second auxiliary chamber () , characterised in that in the aforesaid direct flow drilling mode (F) said auxiliary chambers ( , ) are placed in fluid communication with each other.21167. Device according to claim 1 , characterised in that it is provided with a valve () for placing the aforesaid auxiliary chambers ( claim 1 , ) in communication with each other.311761. Device according to claim 2 , characterised in that said valve () receives the drilling fluid from the second auxiliary chamber () and transfers it to the first auxiliary chamber () in the aforesaid direct flow mode (F).458965107. Device according to claim 3 , characterised in that said main chamber () is provided with a flow control valve () and with a pressure relief valve () for placing the drilling fluid in communication with the first auxiliary chamber () claim 3 , the main chamber () also having a flow control valve () for transferring this drilling fluid to the second auxiliary chamber ().561224. Device according to claim 4 , characterised in that said first auxiliary chamber () is provided with a pressure relief valve () and with a filling valve ().67131415. Device according to claim 4 , characterised in that said second auxiliary chamber () is provided with a flow control ...

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Номер записи: 54
05-01-2017 дата публикации

CONNECTION DEVICE FOR CONNECTING A SECONDARY CIRCUIT TO A DRILLING ELEMENT FOR THE CIRCULATION OF DRILLING FLUIDS IN AN OIL WELL

Номер: US20170002616A1
Автор: CALDERONI Angelo
Принадлежит:

A connection device for connecting a secondary drilling fluids circuit to a drilling element includes a radial aperture. A central body has a first connection portion forming a sealed connection to the secondary circuit. A second connection portion forms a sealed connection to the radial aperture and an intake duct conducts drilling fluids. A clamping system connects the connection device to the drilling element. One opening device is adapted to selectively open and close the radial aperture by acting upon a valve assembly. One coupling device connects the opening device to the valve assembly. The opening device selectively opens and closes the radial aperture by acting upon an obstructor of the valve assembly through rotary movement. The coupling device couples to a clamping element in the obstructor to transfer the rotary movement of the opening device to the obstructor to selectively and securely open and close the radial aperture. 1. A connection device for connecting a secondary circuit for circulation of drilling fluids to a drilling element comprising a radial aperture with which a safety valve assembly is associated , the safety valve assembly comprises a valve body and at least one obstructor for taking at least two operating configurations; [ a first connection portion for effecting a sealed connection to said secondary circuit;', 'a second connection portion for effecting a sealed connection to said radial aperture;', 'an intake duct, interposed between said connection portions, for conducting drilling fluids;, 'a central body comprising, 'a clamping system, for connecting the connection device to the drilling element;', 'only one opening device for selectively opening and closing, at least partially, the radial aperture by acting upon the valve assembly;', 'only one coupling device for connecting said opening device to said valve assembly;, 'said connection device comprises said opening device is adapted to selectively open and close, at least partially, ...

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Номер записи: 55
05-01-2017 дата публикации

METHOD AND APPARATUS FOR MANAGING ANNULAR FLUID EXPANSION AND PRESSURE WITHIN A WELLBORE

Номер: US20170002624A1
Автор: Cuthbert Andy J., Hess Joe E.
Принадлежит:

A well, well head, drilling and completion system, and method for relieving pressure buildup between concentric casing annuli. The well head includes casing hangers and a tubing hanger that may include annular pressure relief conduits formed therein, which selectively vent casing annuli to the interior of the production tubing. Annular pressure relief valves are located within the annular pressure relief conduits, which may open and/or shut based on pressure, temperature, or elapsed time. 1. A hanger system for an oil and gas well , the hanger system , comprising:a first piping hanger having an upper end and a lower end with a first pressure relief conduit formed within the first piping hanger and extending between the upper and lower ends of the first piping hanger;a first piping string carried by the first piping hanger;a second piping hanger having an upper end and a lower end with a second pressure relief conduit formed within the second piping hanger and extending between the upper and lower ends of the second piping hanger; anda second piping string carried by the second piping hanger; whereinthe first piping hanger and the second piping hanger are positioned in proximity to one another so that the first pressure relief conduit is in fluid communication with the second pressure relief conduit.2. The hanger system of claim 1 , further comprising:a pressure relief valve disposed along the first pressure relief conduit or the second pressure relief conduit.3. The hanger system of claim 1 , further comprising:a third piping hanger having an upper end and a lower end with a third pressure relief conduit formed within the third piping hanger and extending between the upper and lower ends of the third piping hanger; anda third piping string carried by the third tubing hanger; whereinthe second piping hanger and the third piping hanger are positioned in proximity to one another so that the second pressure relief conduit is in fluid communication with the third ...

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Номер записи: 56
05-01-2017 дата публикации

ENHANCED HYDROCARBON WELL BLOWOUT PROTECTION

Номер: US20170002626A1
Автор: Hendel Rudolf H., Lin-Hendel Catherine G.
Принадлежит:

A system for enhancing well safety comprises a pipe equipped with a one-way check valve preventing hydrocarbon up flow through the well casing pipe. The one-way check valve opens in response to encountering downward pressure from downward insertion of fluid or objects moving downward towards a well reservoir. The one-way check valve closes in response to encountering upward pressure from fluid from the well reservoir. 1. A system for enhancing well safety , the system comprising: wherein the one-way check valve opens in response to encountering downward pressure from downward insertion of fluid or objects moving downward towards a well reservoir, and', 'wherein the one-way check valve closes in response to encountering upward pressure from fluid from the well reservoir., 'a well casing pipe equipped with a one-way check valve preventing hydrocarbon up flow through the well casing pipe2. A system as in claim 1 , the one-way check valve is a tubal shutter plate check valve.3. A system as in claim 1 , the one-way check valve is an iris shutter check valve.4. A system as in claim 1 , the one-way check valve is constructed using a shutter plate.5. A system as in claim 1 , the one-way check valve is a tubal shutter check valve.6. A system as in claim 1 , the system additionally includes:a drill pipe equipped with the one-way check valve preventing hydrocarbon up flow into the drill pipe.7. A system as in claim 1 , the system additionally includes:a production pipe equipped with a safety valve, which reduces its opening when detecting a flow above a safety threshold.8. A drill pipe used for drilling a well claim 1 , the drill pipe comprising: wherein the one-way check valve opens in response to encountering downward pressure from downward insertion of fluid or objects moving downward towards a well reservoir, and', 'wherein the one-way check valve closes in response to encountering upward pressure from fluid from the well reservoir., 'a one-way check valve preventing ...

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Номер записи: 57
07-01-2016 дата публикации

Valve System for Distributing Actuating Fluid

Номер: US20160002992A1
Автор: Rushton Guy James
Принадлежит:

A technique facilitates delivery of high pressure actuating fluid, e.g. drilling mud, to a plurality of actuators. The technique employs a valve system in which high pressure actuating fluid is delivered from inside a rotor to outer stator ports on a surrounding stator. The construction and arrangement of the rotor and stator reduces the inherent instability and susceptibility to sticking that can otherwise affect the operation of the valve. 1. A system for distributing actuating fluid in a rotary steerable system , comprising:a stator having a plurality of collecting chambers fluidly coupled with a plurality of flow ports;a rotor rotatably received in the stator, the rotor receiving actuating fluid under pressure and having rotor ports which may be aligned with specific flow ports to deliver actuating fluid to select steering actuators; anda plurality of pads on which the rotor is rotatably mounted to provide a larger clearance between the rotor and the stator.2. The system as recited in claim 1 , wherein the plurality of pads comprises a plurality of ribs.3. The system as recited in claim 1 , wherein the plurality of pads comprises a plurality of inserts.4. The system as recited in claim 3 , wherein at least some inserts of the plurality of inserts are positioned around the flow ports and have flow passages through which the actuating fluid flows.5. The system as recited in claim 1 , wherein the rotor is mounted on a shaft which is rotatably received in a bearing mounted in the stator.6. A system for distributing actuating fluid claim 1 , comprising:a stator having a cylindrical interior with stator flow ports;a rotor in the form of a cylinder rotatably received in the stator, the rotor having rotor flow ports which may be selectively aligned with the stator flow ports by rotating the rotor relative to the stator, the stator flow ports and the rotor flow ports being non-circular.7. The system as recited in claim 6 , wherein the stator flow ports have a different ...

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Номер записи: 58
07-01-2016 дата публикации

VALVE ASSEMBLY

Номер: US20160002993A1
Автор: BISSET James, LEUCHTENBERG Christian, MacGregor Alexander John
Принадлежит: MANAGED PRESSURE OPERATIONS PTE. LTD.

A valve assembly for use controlling flow of fluid into a drill pipe, the valve assembly having a valve body, a valve member and a valve seat, wherein a) the valve body has a main passage b) the valve member is movable between a closed position in which the valve member engages with a seat face of the valve seat to substantially prevent flow of fluid along the main passage, and an open position in which the valve member is spaced from the seat face, c) the valve seat is a separate part to the valve body. 139.-. (canceled)40. A drilling system including a tubular element and a valve assembly for use controlling flow of fluid into the tubular element , the valve assembly having a valve body , a valve member and a valve seat , wherein:a) the valve body has a main passage;b) the valve member is movable between a closed position in which the valve member engages with a seat face of the valve seat to substantially prevent flow of fluid along the main passage, and an open position in which the valve member is spaced from the seat face; andc) the valve seat is a separate part to the valve body.41. The drilling system valve according to claim 40 , wherein the valve assembly further includes a cap claim 40 , the valve body being provided with cap locking formations suitable for engagement with corresponding locking formations provided on the cap when the cap is located at least partially in the main passage claim 40 , the engagement of these locking formations substantially preventing movement of the cap out of the main passage.42. The drilling system valve member according to claim 41 , wherein the valve seat has a further seat face which engages with a sealing part of cap to provide a substantially fluid tight seal between the cap and the valve seat when the cap is retained in the main passage of the valve body by engagement of its locking formations with the cap locking formations of the valve body.43. The drilling system according to claim 40 , wherein the valve body is ...

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Номер записи: 59
07-01-2016 дата публикации

CONTROL VALVE

Номер: US20160003372A1
Автор: KOSKIMAKI Antti, KOTALA Ari, LEINO Timo, MUUTTONEN Timo
Принадлежит:

A control valve for controlling flow of a pressure fluid in a breaking device includes a sleeve-like control valve having at least one opening enabling flow of the pressure fluid through the opening. The at least one opening includes at least one wall, at least a part of which is not arranged in a direction parallel to a radial direction of the control valve extending through the middle point of the cross section of the opening on the outer circumference of the control valve, such that the pressure fluid flowing through the opening may be arranged to rotate the control valve about the longitudinal axis of the control valve. 1. A control valve for controlling flow of a pressure fluid in a breaking device , comprisinga sleeve-like control valve including an outer surface, an inner surface and at least one opening extending from the inner surface of the control valve to the outer surface of the control valve enabling flow of the pressure fluid between the inside of the control valve and the outside of the control valve through the at least one opening, wherein the at least one opening includes at least one wall, at least a part of which is not arranged in a direction parallel to a radial direction of the control valve extending through a middle point of a cross-section of the at least one opening on an outer circumference of the control valve, and wherein a cross-sectional area of the at least one opening on the inner surface is substantially equal to or larger than a cross-sectional area of the at least one opening on the outer surface of the control valve, such that the pressure fluid flowing through the at least one opening rotates the control valve about a longitudinal axis of the control valve.2. A control valve according to claim 1 , wherein the at least one wall having at least a part of which is not arranged in a direction parallel to a radial direction of the control valve extending through the middle point of the cross-section of the at least one opening on ...

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Номер записи: 60
04-01-2018 дата публикации

Customized Drilling Tools

Номер: US20180002986A1
Автор: Gan Xiaoge, SONG Huimin, Zhang Youhe
Принадлежит:

A bit includes a bit body having at least one blade coupled to the bit body. The blade has a plurality of cutting elements at a nose region and a shoulder region of the blade. A plurality of fluid outlets are positioned on the blade such that at least 30% of the cutting elements have a fluid outlet within a distance that is two or three times a cutting element diameter away from a cutting face of the cutting element. 1. A bit for removing material from a formation , the bit comprising:a bit body;a blade coupled to the bit body, the blade defining a nose region and a shoulder region;a plurality of cutting elements coupled to the blade in the nose region and the shoulder region, at least one cutting element of the plurality of the cutting elements having a cutting face having a diameter; anda plurality of fluid outlets, the plurality of fluid outlets positioned such that at least 30% of the plurality of cutting elements have at least one fluid outlet positioned an outlet distance equal to or less than three times the diameter of the cutting element away from the cutting face of the at least one cutting element.2. The bit of claim 1 , further comprising a nozzle positioned in the bit body.3. The bit of claim 1 , the bit having three or fewer primary blades.4. The bit of claim 1 , the plurality of cutting elements being arranged at least in a row of primary cutting elements on the blade and at least one row of secondary cutting elements on the blade claim 1 , the at least one row of secondary cutting elements positioned rotationally behind the row of primary cutting elements.5. The bit of claim 4 , at least one fluid outlet of the plurality of fluid outlets being positioned between the row of primary cutting elements and the at least one row of secondary cutting elements.6. The bit of claim 1 , at least 10% of the fluid outlets being positioned an outlet distance equal to or less than 50% the diameter of the cutting element away from the cutting face of at least one of ...

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Номер записи: 61
04-01-2018 дата публикации

Apparatus for Switching off and Deviating A Circulating Liquid Flow without Water Hammering

Номер: US20180002996A1
Автор: Peveri Luigi, Silva Gian Marco
Принадлежит:

An apparatus for switching off and deviating a circulating liquid flow without water hammering, comprising an apparatus body () including an inlet channel () which is split into two outlet channels () in which respective flow valves () are arranged; said apparatus body comprises moreover a discharging channel () coupled to said outlet channels through respective discharging valves (); said outlet channels being moreover coupled to respective pressure measuring chambers (); a balancing valve () communicating two middle zones () respectively formed in the outlet channels. 1. An apparatus for switching off and deviating a circulating liquid flow without water hammering , characterized in that said apparatus comprises an apparatus body including an inlet channel whith is split into two outlet channels in which respective flow valves are arranged; said apparatus body comprises moreover a discharging channel coupled to said outlet channels through respective discharging valves; said outlet channels being moreover coupled to respective pressure measuring chambers; a balancing valve communicating two middle zones respectively formed in the outlet channels.2. An apparatus claim 1 , according to claim 1 , characterized in that said valves split an inner space of said apparatus body into four zones claim 1 , the two flow valves communicating with a delivery zone claim 1 , the balancing valve communicating the middle zones with one another claim 1 , and the two discharging valves communicating with the discharging zone.3. An apparatus claim 1 , according to claim 1 , characterized in that said apparatus comprises a central control unit for driving and controlling the operation of said valves as well as of pressure switches associated with the pressure measuring chambers.4. An apparatus claim 1 , according to claim 1 , characterized in that said apparatus is connected in series in a main mud circulating line coupled upstream of a probe manifold claim 1 , without modifying or ...

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Номер записи: 62
02-01-2020 дата публикации

Water Jet Mining System and Method

Номер: US20200003039A1
Автор: Kinley Colin B., Mac Ewen Andrew
Принадлежит: Islander, LLC

A water jet borehole mining system controlled and operated aboveground includes a high-pressure cutting nozzle that is delivered to an underground resource body through a relatively small diameter borehole. A series of water and air streams at various pressures are delivered to the resource body, and the target resource is disaggregated and/or fluidized and conveyed back to surface via the water jet borehole mining pipe which serves as the conveyor of the system. The mining pipe is used to transport a high-pressure stream of water fluids that have been directed and aligned into laminar flow to a focused water jet cutting head. The central bore of the mining pipe brings the disaggregated and slurrified resource to the surface. The mining pipe transports the slurry via airlift, fluid eduction or a combination of both. 1. A method for mining a subterranean resource in situ comprising the steps of:a. drilling a hole from the earth's surface through any subsurface overburden material to the top of the subterranean resource;b. cementing the borehole whereby any groundwater at the site is protected and leaching of the subterranean resource is prevented;c drilling a hole at least partially through the subterranean resource;d. inserting a mining string into the borehole;e. injecting a high pressure fluid via the mining string into the wellbore;f. redirecting the high pressure fluid into a nozzle, the nozzle being structured and arranged to create a high pressure, high volume stream of laminar mining fluid traveling at supersonic velocity;g. directing the high pressure, high volume stream of mining fluid into the subterranean resource, whereby the subterranean resource is disaggregated and a slurry of disaggregated subterranean resource solids and mining fluids is created;h. injecting a low pressure, high volume stream of fluid into the slurry to mix therewith, whereby the slurry is transported via eduction into a slurry return line in the mining string;i. injecting a gaseous ...

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Номер записи: 63
03-01-2019 дата публикации

DRILLING TOOL AND DRILLING METHOD

Номер: US20190003261A1
Автор: NAKAMURA Kazuyoshi, TANAKA Kunihiko, Tomita Yasutaka
Принадлежит:

A drilling tool of the invention includes an air supply pipe inserted through an inner circumference of a drilling pipe having a tip portion on which a tool main body is disposed. The air supply pipe being configured to supply compressed air. A supply channel is provided on an outer circumference of the drilling pipe. A discharge channel is formed on the tip portion of the tool main body. The discharge channel is configured to discharge cuttings generated together with the drilling fluid into a space between the drilling pipe and the air supply pipe. An exhaust gas outlet opening into the space is formed at a tip portion of the air supply pipe. 1. A drilling tool comprising:a tool main body;a drilling pipe having a tip portion on which the tool main body is provided; andan air supply pipe configured to supply a compressed air and inserted through the drilling pipe, whereina supply channel is provided on an outer circumference of the drilling pipe, the supply channel being configured to supply drilling fluid to a tip portion of the tool main body,a discharge channel is formed on the tip portion of the tool main body, the discharge channel being configured to discharge cuttings generated during drilling together with the drilling fluid supplied from the supply channel into a space between the drilling pipe and the air supply pipe, andan exhaust gas outlet opening into the space is formed on a tip portion of the air supply pipe.2. The drilling tool according to claim 1 ,wherein the exhaust gas outlet extends toward an outer peripheral side of the tool main body so as to incline toward a posterior end side of the tool main body and opens into the space.3. The drilling tool according to claim 1 , further comprising a supply pipe through which the drilling pipe is inserted claim 1 ,wherein the supply channel is formed between the supply pipe and the drilling pipe.4. The drilling tool according to claim 1 , whereina plurality of grooves are formed on an outer circumference ...

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Номер записи: 64
08-01-2015 дата публикации

BOOST SYSTEM AND METHOD FOR DUAL GRADIENT DRILLING

Номер: US20150008036A1
Автор: Ree Sigurd, Stave Rogen Sverre
Принадлежит: AGR SUBSEA AS

Boost system and method for dual gradient drilling where a marine riser () has a mud return line () connected at a first connection position () below the lowest foreseeable mud level () in the marine riser (), and where a mud return pump () is connected to the mud return line (), and where a recirculation line () that has a recirculation pump (), is connected to the marine riser () at a second connection position () below the lowest foreseeable mud level () in the marine riser (), and at a third connection position () on the marine riser () below said second connection position (). 11141812116142022124128126124. Boost system for dual gradient drilling where a marine riser () has a mud return line () connected at a first connection position () below the lowest foreseeable mud level () in the marine riser () , and where a mud return pump () is connected to the mud return line () , characterized in that a recirculation line () that has a recirculation pump () , is connected to the marine riser () at a second connection position () below the lowest foreseeable mud level () in the marine riser ) , and at a third connection position () on the marine riser () below said second connection position ().2262016. Boost system for dual gradient drilling according to claim 1 , characterized in that the lower third connection position () of the recirculation line () to the marine riser () is near the sea bed ().3130303414163034. Boost system for dual gradient drilling according to where the marine riser () is equipped with a boost line () and the boost line () is closable by use of a boost line valve () claim 1 , characterized in that the mud return line () claim 1 , downstream the mud return pump () claim 1 , is connected to the boost line () above the boost line valve ().420223034. Boost system for dual gradient drilling according to claim 3 , characterized in that the recirculation line () claim 3 , downstream the recirculation pump () claim 3 , is connected to the boost line ...

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Номер записи: 65
27-01-2022 дата публикации

BREECH LOCK CONNECTION FOR DRILLING RISER AUXILIARY LINE

Номер: US20220025716A1
Автор: Guevara Ernesto, Kim Ryan, Pau Jorge, Tenorio Harold, Unterkircher Michael
Принадлежит:

An auxiliary line system for a drilling riser includes a first auxiliary line portion configured to couple to a first section of the drilling riser, a second auxiliary line portion configured to couple to a second section of the drilling riser, and a breech lock connection. The breech lock connection includes a first portion configured to couple to the first auxiliary line portion and comprising a first engagement feature and a second portion configured to couple to the second auxiliary line portion and comprising a second engagement feature. The breech lock connection is configured to adjust between a locked configuration and an unlocked configuration. 1. An auxiliary line system for a drilling riser , the auxiliary line system comprising:a first auxiliary line portion configured to couple to a first section of the drilling riser;a second auxiliary line portion configured to couple to a second section of the drilling riser; and a first portion configured to couple to the first auxiliary line portion and comprising a first engagement feature; and', 'a second portion configured to couple to the second auxiliary line portion and comprising a second engagement feature, wherein the breech lock connection is configured to adjust between a locked configuration in which the first engagement feature and the second engagement feature engage one another to block relative movement between the first portion and the second portion and an unlocked configuration in which the first engagement feature and the second engagement feature are disengaged from one another to enable relative movement between the first portion and the second portion., 'a breech lock connection, comprising2. The auxiliary line system of claim 1 , wherein the first auxiliary line portion claim 1 , the second auxiliary line portion claim 1 , and the breech lock connection are configured to form a continuous auxiliary line while the breech lock connection is in the locked configuration.3. The auxiliary line ...

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Номер записи: 66
11-01-2018 дата публикации

Single Ball Activated Hydraulic Circulating Tool

Номер: US20180010406A1
Автор: Jones Kevin Dewayne
Принадлежит:

A circulating sub having an elongate outer member and an elongate inner member positioned within the outer member. Locking members releasably maintain the inner and outer members in a longitudinally fixed relationship. The sub may be activated by a single ball. The ball engages with the locking members and unlocks the inner member from the outer member. The increase of fluid pressure within the sub causes the inner member to move downward within the outer member. Downward movement of the inner member opens exit ports on the outer member to allow fluid to flow into a wellbore surrounding the sub. The decrease of fluid pressure within the sub causes the inner member to move upward within the outer member. Upward movement of the inner member seals the exit ports and deactivates the sub. Once the sub is deactivated, the ball may be expelled from the sub. 1. A circulating sub comprising:an elongate outer member having a longitudinal internal bore extending therethrough and at least one exit port;an elongate inner member disposed within the internal bore and having an internal channel extending therethrough, in which a nozzle is formed within the channel; an elongate arm having a projecting ear positionable within a groove formed within the internal bore; and', 'a catch member attached to the arm and partially extending within the channel;, 'a plurality of locking elements adapted to releasably maintain the inner and outer members in a longitudinally fixed relationship, each locking element comprising a locked position, in which fluid does not pass through the exit port; and', 'an open position, in which fluid passes through the exit port., 'wherein the inner member is configured to move relative the outer body such that the inner member is movable between2. The circulating sub of in which when the inner member is in the locked position claim 1 , the ears are positioned within the grooves and the exit port is not in fluid communication with the internal bore.3. The ...

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Номер записи: 67
11-01-2018 дата публикации

SYSTEM, METHOD AND APPARATUS FOR CONTROLLING FLUID FLOW THROUGH DRILL STRING

Номер: US20180010422A9
Автор: Cramer David S., Harvey Michael J.
Принадлежит:

A device for limiting the flow of drilling fluid through a section of drill string includes a body with a hole in the periphery. Flow enters the device through one axial end, at least a portion of the flow exits through the other axial end. Some of the fluid flow can be diverted through the peripheral hole. A spring-biased axial piston may have an approximately constant force throughout its range of travel. The piston moves axially in response to the changing fluid flow rate to enable a constant amount of flow exiting the axial end of the tool to be achieved while diverting away excess flow through the side. 1. An apparatus , comprising:a housing having an axis, a radial wall with a bore extending axially through the radial wall, and an aperture formed in the radial wall, the aperture being in fluid communication with the bore;a component located inside the housing and having an orifice configured to permit axial fluid flow through the housing;a bias device located in the housing and configured to bias the component to a closed position; andthe component is movable from the closed position wherein the component is configured to substantially close the aperture in the housing to substantially block fluid flow therethrough when downhole axial fluid flow through the orifice is insufficient to overcome a bias of the bias device, and an open position wherein the component is configured to permit fluid flow through the aperture when downhole axial fluid flow through the orifice is sufficient to overcome the bias of the bias device and move the component.2. The apparatus of claim 1 , wherein downhole axial fluid flow through the orifice is configured to be unobstructed in both the closed position and the open position.3. The apparatus of claim 1 , further comprising a sleeve located between the bore of the housing and the component claim 1 , the sleeve is configured to be stationary relative to the housing claim 1 , and the component is configured to be movable relative to ...

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Номер записи: 68
09-01-2020 дата публикации

Flow Rate Trimming Device

Номер: US20200011144A1
Автор: BRADBURY Andrew, BREESE Mark, Brooke Antony
Принадлежит:

A flow rate trimming device is described comprising a body defining a plurality of convoluted flow passages extending between a first surface of the body and a second surface of the body wherein at the first surface each flow passage defines an opening having a lower edge and an upper edge, at least part of the lower edge of a first one of the openings being at substantially the same level or lower than at least part of the upper edge of a second one of the openings at least part of the upper edge of the first one of the openings being higher than at least part of the upper edge of the second one of the openings 1. A flow rate trimming device comprising a body defining a plurality of convoluted flow passages extending between a first surface of the body and a second surface of the body , each convoluted passage comprising a plurality of annular flow passages interconnected by a plurality of radially extending flow passages , wherein at the first surface each radially extending flow passage defines an opening having a lower edge and an upper edge , at least part of the lower edge of a first one of the openings being at substantially the same level or lower than at least part of the upper edge of a second one of the openings , at least part of the upper edge of the first one of the openings being higher than at least part of the upper edge of the second one of the openings.2. A device according to claim 1 , wherein for each convoluted flow passage claim 1 , the annular and radial flow passages forming the convoluted flow passage are axially aligned with one another within the body3. A device according to claim 1 , wherein the upper and/or lower edges of the openings are of substantially arched form.4. A device according to claim 3 , wherein the arched form is smoothly curved.5. A device according to claim 4 , wherein the arched form is of part circular or part elliptical form.6. A device according to claim 3 , wherein the arched form is of part polygonal form claim 3 ...

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Номер записи: 69
09-01-2020 дата публикации

ADJUSTABLE MODULATED AGITATOR

Номер: US20200011146A1
Автор: Samuel Robello
Принадлежит:

This disclosure provides an agitator system that includes an agitator assembly of concentric power-sections, (one power-section inside another power-section both of which comprise stators and rotors). The agitator system includes a controller configured to control a valve assembly of the agitator assembly to selectively open and close the valve assembly to allow fluid to selectively flow between the power-sections of the agitator assembly that generates pressure fluctuations or pressure pluses in the fluid pressure, which increases the speed of the rotor or rotors, and thus, the vibrational frequency of the agitator. The controller can be used to increase the vibrational frequency of the agitator assembly when necessary to prevent the drill string from becoming lodged in a wellbore. 1. An agitator system , comprising:an agitator assembly having a housing and including stators and rotors located therein that form at least two concentric power modules having at least first and second flow cavities located therethrough;a valve assembly fluidly connected to the at least two concentric power modules, the valve assembly configured to selectively control a flow of drilling fluid through the at least two concentric power modules; anda controller coupled to the valve assembly and one or more downhole sensors, the controller configured to receive signals from the one or more downhole sensors that send downhole drilling data to the controller, the controller further configured to send control signals to the valve assembly to open and close the valve assembly to increase a rotational speed of at least one of the at least two concentric power modules and control a vibrational frequency of the at least two concentric power modules.2. The agitator system of claim 1 , wherein the controller is configured to send a control signal to the valve assembly to divert drilling fluid to one of: a first flow cavity of the at least first and second flow cavities claim 1 , a second flow cavity ...

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Номер записи: 70
15-01-2015 дата публикации

TEST PACKER AND METHOD FOR USE

Номер: US20150013971A1
Автор: Devarajan Kannan, FOUBISTER Graeme, FUENMAYOR Andres, SMITH Graeme K., THOMSON Andrew
Принадлежит:

A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position. 1. A method for testing a liner overlap in a wellbore , comprising:running a downhole tool having an axial throughbore into a tubular in the wellbore to a location proximate the liner overlap;engaging an inner wall of the tubular with a sealing element thereby sealing an annulus between the downhole tool and the tubular;displacing a first fluid in the annulus in a first direction through a bypass flow path in the downhole tool thereby bypassing the engaged sealing element;prohibiting fluid flow through the bypass flow path in a second direction; andpressure testing the liner overlap.2. The method of claim 1 , wherein prohibiting fluid flow through the bypass flow path in the second direction further comprises closing a valve in the bypass flow path.3. The method of claim 2 , wherein the valve is selected from the group consisting of a check valve and a flapper valve.4. The method of claim 3 , wherein running the downhole tool into the tubular further comprises displacing the first fluid past the sealing element through a run-in flow path.5. The method of claim 4 , further comprising prohibiting fluid flow through the run-in flow path and ...

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Номер записи: 71
19-01-2017 дата публикации

SYSTEM AND METHOD FOR FLOW DIVERSION

Номер: US20170016290A1
Автор: Linklater James, Manwill Daniel, Orban Jacques, Shumway Jim
Принадлежит: M-I Drilling Fluids U.K. Ltd.

A flow diverter including a bypass element to divert at least a first portion of drilling fluid from a drill string to the borehole annulus. The first portion of fluid, or bypass flow, may be provided to the borehole annulus to clear cuttings generated by a drill bit of a BHA. The remaining fluid flow, or BHA flow, may be expelled through the bottom of the BHA. The fluid discharged through the BHA may enter the annulus and flow upward with the fluid flow diverted through the flow diverter to aid in clearing cuttings. The flow diverter also includes a choke housing disposed concentrically within a drill collar and containing a plurality of chokes to regulate bypass flow. An actuation system may be coupled to the flow diverter to control opening/closing of the chokes and to measure flow rate of the first portion of fluid and/or the remaining fluid. 1. An apparatus comprising:a choke housing;a plurality of chokes disposed in the choke housing;a plurality of choke seats disposed within the choke housing for receiving each of the plurality of chokes;an operating rod coupled to the plurality of chokes for selectively opening and closing the plurality of chokes between a fully open and a fully closed position; anda fluid channel that extends through a wall of the choke housing.2. The apparatus of claim 1 , further comprising a drill collar claim 1 , wherein the choke housing is disposed concentrically within the drill collar.3. The apparatus of claim 2 , wherein an outer cavity is formed between the drill collar and the choke housing and an inner cavity is formed between the plurality of chokes and the plurality of choke seats.4. The apparatus of claim 2 , further comprising a sleeve disposed concentrically within the choke housing claim 2 , the sleeve defining an inner cavity.5. The apparatus of claim 4 , wherein an outer cavity is formed between the plurality of chokes and the plurality of choke seats.6. The apparatus of claim 2 , wherein a plurality of stabilizer fins ...

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Номер записи: 72
21-01-2016 дата публикации

METHOD AND SYSTEM FOR IDENTIFYING A SELF-SUSTAINED INFLUX OF FORMATION FLUIDS INTO A WELLBORE

Номер: US20160017676A1
Автор: Santos Helio, Sonneman Paul L.
Принадлежит: SAFEKICK LTD.

A method of identifying a self-sustained influx of formation fluids into a wellbore includes the steps of closing an annular shut-off device and diverting an annular return flow from the wellbore through a first flow rate measurement device, measuring a flow rate of said annular return flow, measuring an inlet flow rate of fluids entering the well through a second flow rate measurement device in a fluid injection line, and identifying a self-sustained influx of formation fluids if a non-decreasing measured annular return flow rate is greater than said measured inlet flow rate.

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Номер записи: 73
21-01-2016 дата публикации

RELEASE VALVE USED IN AN INNER TUBE ASSEMBLY FOR USE WITH A CORE BARREL

Номер: US20160017677A1
Автор: BACK Goran
Принадлежит: Sandvik Intellectual Property AB

An inner tube assembly releasably latchable with a core barrel of a core drilling apparatus. The inner tube assembly includes a valve housing having a fluid flow port and a position guide to control a position of the valve body within the valve housing to open and close the port in response to a fluid pressure acting on the valve body.

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Номер записи: 74
17-01-2019 дата публикации

MULTI-PURPOSE THROUGH CONDUIT WET-MATE CONNECTOR AND METHOD

Номер: US20190017332A1
Автор: JOSEPH Paul, Loh Yuh
Принадлежит: Baker Hughes, a GE company, LLC

A connection system including a male connector portion and a female connector portion each including a housing, a valve disposed within the housing, a valve actuator operably connected to the valve, and a housing extension, the housing extension from the male connector portion being configured to interact with the valve actuator of the female connector portion to open the valve of the female connector portion during mating of the male and female connector portions 1. A connection system comprising: a housing;', 'a valve disposed within the housing;', 'a valve actuator operably connected to the valve; and', 'a housing extension, the housing extension from the male connector portion being configured to interact with the valve actuator of the female connector portion to open the valve of the female connector portion during mating of the male and female connector portions and the housing extension from the female connector portion being configured to interact with the valve actuator of the male connector portion to open the valve of the male connector portion during mating of the male and female connector portions., 'a male connector portion and a female connector portion each including2. The connection system as claimed in wherein the opening of the male connector portion valve and the opening of the female connector portion valve is simultaneous.3. The connection system as claimed in wherein the male connector portion includes a stub guide.4. The connection system as claimed in wherein the female connector portion includes a stub collar.5. The connection system as claimed in wherein the housing extensions are configured and dimensioned such that during mating of the male and female connector portions claim 4 , opening of the valves occurs prior to the stub guide and the stub collar being mated.6. The connection system as claimed in wherein the housing extensions are configured and dimensioned such that during mating of the male and female connector portions claim 4 , ...

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Номер записи: 75
17-04-2014 дата публикации

Permeability Modification

Номер: US20140102720A1
Автор: Metcalfe Paul David
Принадлежит:

Downhole apparatus comprises a base pipe and a plurality of non-concentric pressure deformable chambers mounted externally on the pipe. The chambers may be inflated to increase the diameter of the apparatus and engage and support a surrounding bore wall. 1. Downhole apparatus comprising a base pipe and a plurality of non-concentric pressure deformable chambers mounted externally thereon.2. The apparatus of claim 1 , wherein the chambers extend axially along the base pipe.3. The apparatus of or claim 1 , wherein the chambers extend circumferentially around the base pipe.4. The apparatus of claim 1 , or claim 1 , wherein at least some of the chambers are spaced apart.5. The apparatus of any preceding claim claim 1 , wherein at least some of the chambers are directly adjacent one another.6. The apparatus of any preceding claim claim 1 , wherein at least some of the chambers abut.7. The apparatus of any preceding claim claim 1 , wherein at least some of the chambers overlap.8. The apparatus of claim 7 , wherein overlapping portions of the chamber are formed such that the chambers collectively describe a substantially circular form.9. The apparatus of any preceding claim claim 7 , wherein the chambers are configured to be capable of providing an excess degree of diametric expansion.10. The apparatus of any preceding claim claim 7 , wherein the chambers provide support for elements intended to be radially translated into contact with a surrounding wall.11. The apparatus of any preceding claim claim 7 , wherein the chambers are configured to be capable of providing a degree of expansion beyond that required to obtain contact with a surrounding wall.12. The apparatus of any preceding claim claim 7 , wherein the chambers comprise metal-walled members.13. The apparatus of any preceding claim claim 7 , wherein the chambers comprise hollow members.14. The apparatus of claim 13 , wherein the chambers comprise steel tubes.15. The apparatus of any of to claim 13 , wherein the ...

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Номер записи: 76
17-04-2014 дата публикации

CENTER DISCHARGE GAS TURBODRILL

Номер: US20140102802A1
Автор: Kolle Jack J.
Принадлежит: Trican Well Service, Ltd.

A compact gas turbine motor and a speed reduction transmission capable of providing the speed and torque required for drilling with center discharge bits. The transmission includes two sun gears of different pitch diameters, keyed to the turbine shaft. Upper planet gears, whose carrier is fixed in place, drive an outer ring gear, which engages lower planet gears having a different pitch diameter. The lower planet gears engage the lower sun gear. Due to the different pitch diameters of the sun gears and planet gears, the gear carrier for the lower planet gears rotates in the same direction as the turbine shaft, but at a much slower rate. Exhaust gas from the turbine can be directed through one or more flow restriction elements to increase gas density in the turbine, further reducing turbine speed. The flow restriction element can comprise a venturi, to provide a vacuum assist to remove cuttings. 1. A method of drilling with dry gas , comprising:(a) pumping the dry gas through an inlet passage defined in concentric tubing;(b) directing the dry gas from the inlet passage into apparatus that includes a turbine motor to cause a turbine shaft to rotate at a first speed, the turbine shaft being drivingly coupled to a drill bit for drilling a bore hole; and(c) directing exhaust gas discharged from the turbine motor through a venturi to vacuum cuttings from a hole bottom up though a center discharge volume, and into an outlet passage defined in the concentric tubing.2. The method of claim 1 , further comprising the step of directing exhaust gas discharged from the turbine motor through a flow restriction element claim 1 , thereby increasing a density of the dry gas in the turbine motor claim 1 , to reduce the first speed at which the turbine shaft rotates.3. The method of claim 2 , wherein directing the exhaust gas discharged from the turbine motor through the flow restriction element comprises directing the exhaust gas through an annular gap defining a primary jet of a ...

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Номер записи: 77
28-01-2016 дата публикации

PREVENTING FLUID LOSS

Номер: US20160024863A1
Автор: BADRI MOHAMMED, Taherian Reza
Принадлежит:

Sealing particles are used to stop or reduce undesired fluid loss. The sealing particles may be swellable or have effective cross-sectional areas greater than five square millimeters or are both swellable and have effective cross-sectional areas greater than five square millimeters. The sealing particles are disposed in one or more locations in which there is undesired fluid flow and, once lodged therein, stop or at least reduce the undesired fluid loss. A tubular having a bypass flow path may be used to deploy the sealing particles. The bypass flow path may use a biased or unbiased sleeve that is selectably movable to expose or block exit ports in the tubular. A retrievable sealing disk may be deployed to move the sleeve. The sealing particles may be made of a bi-stable material with extenders and may be actuated using swellable material. The sealing particles may extend in multiple dimensions. 1. A method , comprising:providing sealing particles that are swellable or have effective cross-sectional areas greater than five square millimeters or are both swellable and have effective cross-sectional areas greater than five square millimeters;disposing the sealing particles in one or more locations in which there is undesired fluid loss; andstopping or reducing the undesired fluid loss using the sealing particles.2. The method of claim 1 , further comprising:providing a bypass flow path for the sealing particles;providing an actuator to open and/or close the bypass flow path; andselectably opening or closing the bypass flow path using the actuator.3. The method of claim 2 , wherein the actuator comprises a weight or a motor.4. The method of claim 2 , wherein selectably opening or closing the bypass flow path using the actuator comprises rotating or translating a sleeve.5. The method of claim 4 , further comprising biasing the sleeve.6. The method of claim 1 , wherein the disposing the sealing particles comprises pumping the sealing particles.7. The method of claim 6 , ...

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Номер записи: 78
24-04-2014 дата публикации

Method and system for identifying a self-sustained influx of formation fluids into a wellbore

Номер: US20140110169A1
Автор: Helio Santos, Paul L. SONNEMANN
Принадлежит: SAFEKICK Ltd

A method of identifying a self-sustained influx of formation fluids into a wellbore includes the steps of closing an annular shut-off device and diverting an annular return flow from the wellbore through a first flow rate measurement device, measuring a flow rate of said annular return flow, measuring an inlet flow rate of fluids entering the well through a second flow rate measurement device in a fluid injection line, and identifying a self-sustained influx of formation fluids if a non-decreasing measured annular return flow rate is greater than said measured inlet flow rate.

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Номер записи: 79
23-01-2020 дата публикации

Method and device to supply liquid to a drill pipe

Номер: US20200024910A1
Автор: Alf BREIVIK, Helge HOPE
Принадлежит: Moonshine Solutions As

It is discussed a method for drilling a well through a formation from a drilling installation, for the recovery of fluids, where a drill pipe ( 30 ) made up of a number of drill pipe sections is lead down into the formation and is supplied with liquid fluid from a fluid delivery system before one or more new drill pipe sections connected to the installations drill floor successively is screwed onto the upper end of the drill pipe ( 30 ), where a filling pipe ( 110 ) formed with a downwardly extending pipe spigot ( 17 ) that is lead down into the opening of the drill pipe section during assembly to start the fluid filling. The method is characterized by that it is used a threadless filling pipe ( 110 ) with two main parts defined by an complex upper sleeve ( 50 ) and a lower sleeve ( 52 ), and that includes mutual intermediate seal surfaces ( 47,49 ), and the filling pipe's ( 110 ) seal towards the outlet of the fluid delivery system ( 20 ), respectively towards the top part ( 31 ) of the drill pipe ( 30 ) is produced by the weight of the overlying fluid delivery system ( 20 ) towards the filling pipe's ( 10 ) circular upper and lower seal surfaces ( 12, 14; 16, 18 ). It is also discussed a new construction of a filling pipe ( 110 ), and the application of the method and the filling pipe.

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Номер записи: 80
23-01-2020 дата публикации

WELLBORE CEMENTING SYSTEM

Номер: US20200024927A1
Автор: Alsahlawi Ziyad, Sehsah Ossama R.
Принадлежит:

An example wellbore cementing system includes a casing to line at least part of a wellbore, and a pipe to introduce cement slurry containing capsules into the wellbore. The capsules include an accelerator. The accelerator reacts with the cement slurry to affect a thickening time of the cement slurry. The example system also includes a substructure having shearing pins. The substructure is arranged to receive the cement slurry from the pipe. The substructure is configured rotate to break at least some of the capsules in the cement slurry. 1. A system comprising:a casing to line at least part of a wellbore;a pipe to introduce cement slurry containing capsules into the wellbore, the capsules comprising an accelerator, the accelerator to react with the cement slurry to affect a thickening time of the cement slurry; anda substructure occupying a terminal end of the pipe, the substructure having an output to the wellbore, the output comprising shearing pins, the substructure being arranged to receive the cement slurry from the pipe and to pass the cement slurry through the shearing pins to the wellbore, the substructure being configured to rotate while the cement slurry exits the pipe, where rotation of the substructure causes the shearing pins to rotate and thereby to break at least some of the capsules in the cement slurry.2. The system of claim 1 , where the accelerator comprises calcium dichloride (CaCl).3. The system of claim 1 , where the accelerator comprises anhydrous sodium metasilicate.44. The system of claim 1 , where the accelerator is at least % by weight of the cement slurry.5. The system of claim 1 , where the substructure is configured rotate within the cement slurry to produce a turbulent flow within the cement slurry.6. The system of claim 5 , where the turbulent flow has sufficient force to break at least some of the capsules.7. The system of claim 6 , further comprising:one or more pumps to force the cement slurry through the pipe, the one or more ...

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Номер записи: 81
02-02-2017 дата публикации

Stimulation of Packerless Wells for Enhanced Oil Recovery

Номер: US20170030175A1
Автор: BRIEGER Emmet F., BRIEGER Leesa M.
Принадлежит:

Four methods are described for inducing high differential pressures across perforations in wells traversing earth formations. Nitrogen, N, or another inert gas is introduced into the well under pressure (via the annulus and/or the tubing), thereby lowering the fluid column and setting up conditions for lowering the hydrostatic pressure above the formation. The formation is then subjected to sudden exposure to the lowered hydrostatic pressure, either through use of a pressure-actuated surge valve or through sudden bleed-off of the Ngas. In both cases, a sudden release of well fluid pressure into the tubing string and/or annulus produces an implosion force and surges the perforations. 1(a) removing the sucker rod and pump if the well is a beam pumping well;(b) applying nitrogen pressure to the tubing column and bleeding off any fluid that exits through the annulus;(c) introducing a through-tubing surge valve into the well and setting it;(d) gradually bleeding off the nitrogen; and(e) surging the well when the pressure-actuated valve opens.. A method for the stimulation of packerless wells for enhanced oil recovery, the method comprising the steps of: This application claims the benefit under Title 35 United States Code §119(e) of U.S. Provisional Patent Application Ser. No. 62/185,460; Filed: Jun. 26, 2015; the full disclosure of which is incorporated herein by reference.1. Field of the InventionThis invention describes a methodology for stimulation of oil and gas production from oil or gas packerless wells that traverse earth formations and that have been completed with shaped charge perforations. More particularly, the system of the invention is used to develop a high and/or sudden differential-of-pressure effect in perforations in a well bore to flow or flush debris and compacted materials from the perforations with minimal intervention and very low impact on the well equipment.2. Description of the Related ArtIt is known that shaped charge perforating guns leave ...

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Номер записи: 82
04-02-2016 дата публикации

DRILL STRING CHECK VALVE

Номер: US20160032669A1
Автор: Churchill Andrew Philip
Принадлежит: CHURCHILL DRILLING TOOLS LIMITED

Drill string check valve apparatus comprises a tubular body and a flapper valve mounted in the body with a flapper movable between an open position and a closed position. An axially extending valve retainer is also mounted in the body and is translatable from a running position to a drilling position. In the running position the valve retainer extends through the valve to maintain the flapper in the open position. In the drilling position the valve retainer permits the flapper to move to the closed position to prevent flow up through the body. 1. A drilling method comprising:running a drill string into a bore with a flapper valve located towards a distal end of the string and above a drill bit mounted on the distal end of the string, with the flapper valve held in an open configuration by an axially extending valve retainer extending at least partially through the valve;translating the valve retainer to a position beyond the valve to permit the valve to assume a closed configuration and prevent flow up through the body; and thendrilling the bore while pumping fluid down through the string from surface to the drill bit.2. The drilling method of claim 1 , comprising providing a tool in the string between the flapper valve and the drill bit claim 1 , pumping fluid from the surface through the flapper valve and permitting communication via pressure pulses between the tool and the surface.3. The drilling method of claim 2 , comprising communicating via pressure pulses between the tool and the surface while the flapper valve is held in the open configuration.4. The drilling method of claim 2 , comprising communicating via pressure pulses between the tool and the surface while the flapper valve is permitted to assume the closed configuration.5. The drilling method of claim 2 , wherein the tool comprises one or more of a mud motor claim 2 , MWD tool and LWD tool.6. The method of claim 1 , comprising pumping fluid through the open flapper valve.7. The method of claim 1 , ...

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Номер записи: 83
01-02-2018 дата публикации

MODULAR MANIFOLD

Номер: US20180030796A1
Автор: Kalia Akshay, Pinho Adriano, Saenz Fernando, Skowronek Tyler
Принадлежит:

A technique facilitates controlling fluid flows with a modular manifold. The modular manifold has a manifold base which is positioned at a desired surface or subsea location. Various types of modular units may be deployed to and/or retrieved from the manifold base according to the desired control of fluid flows with respect to a well or a plurality of wells. Each modular unit may be selectively coupled or decoupled along the manifold base to adjust the configuration of the manifold for a given job or over time to accommodate changing conditions. 1. A system for directing fluid flow , comprising: a manifold base;', 'a manifold frame combined with the manifold base, the manifold frame establishing a plurality of spaces; and', 'a modular unit mounted in a space of the plurality of spaces, the modular unit having a plurality of connectors positioned to form a plurality of corresponding fluid couplings for directing fluid flow., 'a modular manifold having2. The system as recited in claim 1 , wherein the manifold further comprises at least one additional modular unit mounted in another space of the plurality of spaces.3. The system as recited in claim 2 , wherein the modular unit comprises a modular branch unit.4. The system as recited in claim 2 , wherein the modular unit comprises a multiple modular branch unit.5. The system as recited in claim 2 , wherein the modular unit comprises a modular header unit.6. The system as recited in claim 5 , wherein the at least one additional modular unit comprises a plurality of modular branch units.7. The system as recited in claim 5 , wherein the at least one additional modular unit comprises a multiple modular branch unit.8. The system as recited in claim 1 , wherein the modular manifold is a subsea modular manifold coupled in fluid communication with at least one subsea well installation.9. The system as recited in claim 1 , wherein the modular manifold is a surface modular manifold coupled in fluid communication with at least one ...

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Номер записи: 84
05-02-2015 дата публикации

CASING FILLING TOOL

Номер: US20150034302A1
Автор: Nikiforuk Kevin James
Принадлежит: Tesco Corporation

Present embodiments are directed to a tubular filling tool. In certain embodiments, the tubular filling tool includes a conductor pipe configured to receive a filling fluid flow from a top drive and a diffuser block communicatively coupled to the conductor pipe and configured to receive the filling fluid flow from the conductor pipe, wherein the diffuser block comprises a plurality of fluid passages extending to external passages formed in an outer diameter of the diffuser block and configured to facilitate passage of the filling fluid flow to the external passages from within the diffuser block, wherein the external passages are configured to generate a swirl flow pattern in the filling fluid flow during a tubular filling process. 1. A tubular filling tool , comprising:a conductor pipe configured to receive a filling fluid flow from a top drive; anda diffuser block communicatively coupled to the conductor pipe and configured to receive the filling fluid flow from the conductor pipe, wherein the diffuser block comprises a plurality of fluid passages extending to external passages formed in an outer diameter of the diffuser block and configured to facilitate passage of the filling fluid flow to the external passages from within the diffuser block, wherein the external passages are configured to generate a swirl flow pattern in the filling fluid flow during a tubular filling process.2. The tubular filling tool of claim 1 , wherein the diffuser block is configured to be at least partially disposed within a tubular of a mineral extraction system during the tubular filling process.3. The tubular filling tool of claim 2 , wherein the tubular is casing landed in a wellbore of the mineral extraction system.4. The tubular filling tool of claim 1 , wherein a base of the diffuser block comprises a chamber that is opened toward an engagement area and configured to collect air displaced by the filling fluid flow during the tubular filling process.5. The tubular filling tool of ...

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Номер записи: 85
31-01-2019 дата публикации

BIDIRECTIONAL DOWNHOLE ISOLATION VALVE

Номер: US20190032452A1
Автор: Noske Joe
Принадлежит:

A method of drilling a wellbore includes deploying a drill string into the wellbore through a casing string disposed in the wellbore, the casing string having an isolation valve; drilling the wellbore into a formation by injecting drilling fluid through the drill string and rotating a drill bit of the drill sting; retrieving the drill string from the wellbore until the drill bit is above one or more valve members of the isolation valve; and closing the valve members, thereby bidirectionally isolating the formation from an upper portion of the wellbore. 1. A method of drilling a wellbore , comprising:deploying a drill string into the wellbore through a casing string disposed in the wellbore, the casing string having an isolation valve;drilling the wellbore into a formation by injecting drilling fluid through the drill string and rotating a drill bit of the drill sting;retrieving the drill string from the wellbore until the drill bit is above one or more valve members of the isolation valve; andclosing the valve members, thereby bidirectionally isolating the formation from an upper portion of the wellbore.2. The method of claim 1 , wherein the valve members are an upper flapper and a lower flapper.3. The method of claim 2 , wherein the lower flapper is closed before the upper flapper is closed.4. The method of claim 2 , wherein:the upper flapper is pressed against an upper seat of the isolation valve in response to fluid pressure in an upper portion of the wellbore being greater than fluid pressure in a lower portion of the wellbore, andthe lower flapper is pressed against a lower seat of the isolation valve in response to the fluid pressure in the wellbore lower portion being greater than the fluid pressure in the wellbore upper portion.5. The method of claim 2 , wherein a closing chamber is formed in the isolation valve during closing of at least one of the flappers to facilitate closing of the at least one flapper.6. The method of claim 2 , wherein:the lower ...

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Номер записи: 86
11-02-2016 дата публикации

FLUID COUPLING DRIVE SYSTEM FOR A DRILL RIG AIR COMPRESSOR

Номер: US20160040491A1
Автор: Law Arnold, Warr Owen J.
Принадлежит:

A drill rig includes a base, a drill tower coupled to and extending from the base, a drill pipe coupled to and supported by the drill tower, an air compressor coupled to the base, a prime mover coupled to the air compressor, and a fluid coupling disposed between and coupled to both the prime mover and the air compressor. 1. A drill rig comprising:a base;a drill tower coupled to and extending from the base;a drill pipe coupled to and supported by the drill tower;an air compressor coupled to the base;a prime mover coupled to the air compressor; anda fluid coupling disposed between and coupled to both the prime mover and the air compressor.2. The drill rig of claim 1 , wherein the fluid coupling includes an input pump and a separately spaced output turbine that both rotate about a shared axis and are separated by a gap inside the fluid coupling.3. The drill rig of claim 2 , wherein the fluid coupling is a hydrodynamic device that includes oil within the gap to transfer momentum from the input pump to the output turbine.4. The drill rig of claim 3 , wherein the prime mover is coupled to the input pump and is configured to cause the input pump to rotate claim 3 , causing oil adjacent the input pump in the gap to rotate and to be pumped toward the output turbine claim 3 , thereby causing the output turbine to rotate.5. The drill rig of claim 2 , wherein the air compressor includes a main rotor claim 2 , and wherein the output turbine is coupled to the main rotor of the air compressor such that rotation of the output turbine causes rotation of the main rotor.6. The drill rig of claim 2 , further comprising an additional turbine disposed between the input pump and the output turbine.7. The drill rig of claim 2 , wherein the fluid coupling includes a lock-up structure that physically links and connects the input pump to the output turbine when the input pump is increasing in speed and reaches a predetermined speed threshold.8. The drill rig of claim 7 , wherein the ...

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Номер записи: 87
12-02-2015 дата публикации

GAS INJECTION WHILE DRILLING

Номер: US20150041213A1
Автор: Jeffryes Benjamin P., JOHNSON ASHLEY BERNARD
Принадлежит: SCHLUMBERGER TECHNOLOGY CORPORATION

Injection of gas into a managed pressure drilling system to provide for operation of the drilling system in a downhole pressure window defined by the pore pressure of a formation being drilled and a fracture pressure of the formation. Gas injection being controlled so as to produce the desired downhole pressure without causing large oscillations in borehole pressure. 1. A method for injecting gas into a borehole in a subterranean formation during a drilling procedure , the method comprising:pumping gas into a gas injector, wherein the gas injector is in fluid communication with an annulus surrounding a drillstring, and wherein the drillstring extends from a location at an Earth surface to a bottom of the borehole and comprises a drill bit for drilling the borehole; andpumping gas down the drillstring through the drill bit and into the annulus, wherein the gas is pumped through the gas injector with a certain flow rate and the certain flow rate is a rate of flow of the gas through the annulus that produces a desired pressure at the bottom of the borehole.2. The method of claim 1 , wherein the gas pumped down the drillstring is entrained in a drilling fluid that is pumped down the drillstring.3. The method of claim 1 , wherein the gas pumped down the drillstring is pumped into the drillstring at the certain flow rate.4. The method of claim 1 , further comprising:using a processor to control the flow of gas into the injector.5. The method of claim 4 , further comprising:using a sensor in the annulus or the gas injector to determine at least one of a pressure, flow rate and presence of the gas.6. The method of claim 4 , wherein the processor processes the certain flow rate based on at least one of a desired bottomhole pressure claim 4 , a drilling fluid weight claim 4 , and a pressure in the annulus.7. A method for initiating gas injection into a borehole in a managed pressure drilling process during a drilling procedure claim 4 , the method comprising:pumping a volume ...

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Номер записи: 88
12-02-2015 дата публикации

Plural input mud-collecting manifold

Номер: US20150041220A1
Автор: David Allen Wells, SR.
Принадлежит: Fabrication of Rig and Exploration Equipment Inc

A manifold directs the flow of drilling mud from a drilling rig. A longitudinal tubular body has a first end and a second end, such that the longitudinal tubular body is supported by at least two supports of a platform. The platform can support a monorail that is parallel to the longitudinal tubular body, so that it is five feet of the longitudinal tubular body. The longitudinal tubular body can have at least three side directed input ports so that the ports are adapted to receive a mud pipe for attachment. Each of the three side-directed input ports can face substantially towards and above the monorail to provide unobstructed lateral attachment of a mud pipe to the longitudinal tubular body.

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Номер записи: 89
08-02-2018 дата публикации

METHOD AND APPARATUS FOR SEALING TUBULARS

Номер: US20180038194A1
Автор: II Albert C., Le Tuong Thanh, ODELL, Twardowski Eric M.
Принадлежит:

A valve arrangement in a tubular having a first one way valve configured to prevent fluid flow in the tubular in a first direction; and a second one way valve configured to prevent fluid flow in the tubular in a second, opposite direction. 1. A valve arrangement in a tubular , comprising:a first one way valve configured to prevent fluid flow in the tubular in a first direction; anda second one way valve configured to prevent fluid flow in the tubular in a second, opposite direction.2. The valve arrangement of claim 1 , wherein the first and second valves are disposed above an opening in the tubular.3. The valve arrangement of claim 2 , wherein the opening comprises a gap between two tubulars.4. The valve arrangement of claim 1 , further comprising a third one way valve.5. The valve arrangement of claim 4 , wherein the third one way valve prevents fluid flow in the second direction.6. The valve arrangement of claim 1 , wherein at least one of the one way valves comprises a flapper valve.7. The valve arrangement of claim 1 , wherein the first direction is a downward direction.8. A method of completing a wellbore claim 1 , comprising:providing a tubular having a first one way valve configured to prevent fluid flow in the tubular in a first direction and a second one way valve configured to prevent fluid flow in the tubular in a second, opposite direction,supplying a cement through the first and second valves and out, of the tubular;closing the second one way valve to prevent cement from returning into the tubular; andclosing the first one way valve and applying pressure above the first one way valve.9. The method of claim 8 , wherein the pressure is applied to test for leaks in the tubular.10. The method of claim 8 , further comprising maintaining the first and second one way valves in the open position during a drilling operation.11. The method of claim 10 , wherein the valves are maintained opened using a drill string connected to a motor. The present invention ...

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Номер записи: 90
08-02-2018 дата публикации

CONTROLLING THE SENSITIVITY OF A VALVE BY ADJUSTING A GAP

Номер: US20180038197A1
Автор: Deolalikar Neelesh V., Janes Stephen Christopher, Winslow Daniel
Принадлежит: Halliburton Energy Services, Inc.

A downhole tool including multiple orifices defining at least a first and a second flow path, and a valve that adjusts to change a ratio of fluid flow between the first and second flow paths, the valve being offset from the multiple orifices by a gap that is adjustable to customize a sensitivity of the change to each adjustment. A method for regulating flow along a first fluid path in a downhole tool includes adjusting a valve relative to multiple orifices that define the first fluid path and a second fluid path, said adjusting changing a ratio of fluid flow between the first and second flow paths, and adjusting a gap between the valve and the multiple orifices to modify a sensitivity of the change to each adjustment. 1. A downhole tool comprising:a tool body;multiple orifices in the tool body defining at least a first and a second flow path; and.a valve that adjusts to change a ratio of fluid flow between the first and second flow paths, the valve being offset from the multiple orifices by a gap that is adjustable to customize a sensitivity of the change to each adjustment.2. The tool of claim 1 , further comprising a turbine claim 1 , wherein the first path of the valve is in fluid communication with the turbine.3. The tool of claim 1 , wherein the valve type is one selected from the group consisting of gate claim 1 , shear claim 1 , globe claim 1 , and poppet.4. The tool of claim 3 , wherein the valve type is a poppet valve.5. The tool of claim 1 , wherein the gap is adjustable using at least one of a manual adjustment claim 1 , an active adjustment claim 1 , an automatic adjustment claim 1 , and combinations thereof6. The tool of claim 5 , further comprising shims claim 5 , wherein the shims are used to manually adjust the gap.7. The tool of claim 5 , further comprising a spring claim 5 , wherein the spring is used to passively adjust the gap.8. The tool of claim 5 , further comprising an actuator claim 5 , wherein the actuator is used to automatically adjust ...

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Номер записи: 91
24-02-2022 дата публикации

SURGE CONTROL SYSTEM FOR MANAGED PRESSURE DRILLING OPERATIONS

Номер: US20220056772A1
Автор: "OKeefe Kyle", Narro Gregory, Ramey Mark
Принадлежит: Baker Hughes Oilfield Operations LLC

A managed pressure drilling (MPD) system includes a work string having one or more tubulars having an internal flow path. The work string supports a liner string terminating in a liner float. A liner hanger running tool is coupled to the work string uphole of the liner string and the liner float. A selectively operable surge control sub is arranged uphole of the liner hanger running tool, and a selectively operable MPD sub is positioned uphole of the liner hanger running tool and the selectively operable surge control sub. The selectively operable MPD sub is operable to close off the internal flow path to fluid pressure passing uphole from the liner float in a first position during MPD operations and opens the internal flow path to fluid pressure after the liner string reaches a target depth. 1. A managed pressure drilling (MPD) system comprising:a work string including one or more tubulars having an internal flow path, the work string supporting a liner string terminating in a liner float;a liner hanger running tool coupled to the work string uphole of the liner string and the liner float;a selectively operable surge control sub arranged uphole of the liner hanger running tool; anda selectively operable MPD sub positioned uphole of the liner hanger running tool and the selectively operable surge control sub, the selectively operable MPD sub being operable to close off the internal flow path to fluid pressure passing uphole from the liner float in a first position during MPD operations and opens the internal flow path to fluid pressure after the liner string reaches a target depth.2. The MPD system according to claim 1 , wherein the selectively operable MPD sub includes a housing having an uphole end claim 1 , a downhole end and a rotatable ball valve arranged between the uphole end and the downhole end.3. The MPD system according to claim 2 , wherein the selectively operable MPD sub includes an actuator member arranged between the rotatable ball valve and the ...

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Номер записи: 92
07-02-2019 дата публикации

SACRIFICIAL PROTECTOR SLEEVE

Номер: US20190040695A1
Автор: Sim Nicholas Kok Jun
Принадлежит:

A method of protecting a nipple profile of a downhole tool that forms a portion of a tubing string and that is exposed to through-tubing completion operations includes securing a single-trip protective sleeve to the tool so that the sleeve covers the nipple profile of the tool during the completion operations and dissolving the single-trip protective sleeve so that it breaks away from the nipple profile to expose the nipple profile for use. 1. A method comprising:extending a sacrificial sleeve within an interior passageway of a tool;securing the sacrificial sleeve to the tool such that an interior-facing tool component of the tool is covered by the sacrificial sleeve;passing a first fluid through an interior passageway of the sacrificial sleeve; anddissolving the sacrificial sleeve using the first fluid to uncover the interior-facing tool component.2. The method of claim 1 ,wherein the tool forms a portion of a tubing string that extends within a wellbore;wherein the method further comprises injecting a second fluid through a fluid passageway of the tubing string and towards a completion assembly that is coupled to the tubing string; andwherein the interior-facing tool component is shielded from the second fluid when covered by the sacrificial sleeve.3. The method of claim 1 , wherein the tool is a tubing retrieval safety valve and the interior-facing tool component is at least one of a nipple profile and a seal bore.4. The method of claim 1 , wherein securing the sacrificial sleeve to the tool such that the interior-facing tool component of the tool is covered by the sacrificial sleeve comprises setting a protrusion formed on an exterior surface of the sacrificial sleeve within a nipple profile that is the interior-facing tool component.5. The method of claim 1 , wherein the first fluid comprises at least one of an acid claim 1 , an ammonium claim 1 , a base claim 1 , an hydroxide claim 1 , an acetone claim 1 , a gasoline claim 1 , a hydrocarbon claim 1 , an ...

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Номер записи: 93
07-02-2019 дата публикации

IN-LINE LIQUID TRIGGER VALVE

Номер: US20190040713A1
Автор: Bright Carl
Принадлежит:

A trigger valve may be disposed between a fluid source and a gas utilization destination. A trigger valve can have housing with an inlet and an outlet. A trigger material may be disposed between the inlet and outlet within the housing. The trigger material can seal the housing to prevent fluid flow to the outlet in response to liquid being present in the housing. 1. An apparatus comprising a housing having an inlet and an outlet , a trigger material disposed between the inlet and outlet within the housing , the trigger material sealing the housing to prevent fluid flow to the outlet in response to liquid being present in the housing.2. The apparatus of claim 1 , wherein the trigger material is Sodium Polyacrylate.3. The apparatus of claim 1 , wherein the trigger material occupies less than all of an interior volume of the housing prior to the presence of liquid.4. The apparatus of claim 1 , wherein the trigger material is a powder prior to the presence of liquid.5. The apparatus of claim 1 , wherein the trigger material is positioned proximal the inlet and separated from the outlet.6. The apparatus of claim 1 , wherein the trigger material comprises multiple different superabsorbent polymers.7. The apparatus of claim 1 , wherein the trigger material is retained in a predetermined position in the housing by a single porous member.8. The apparatus of claim 1 , wherein the trigger material is disposed between first and second porous members within the housing.9. The apparatus of claim 1 , wherein the liquid is water.10. A system comprising a first housing connected in-line between a wellbore and a mudlogging device as part of a transmission assembly claim 1 , the first housing having a first trigger material disposed between an inlet and an outlet within the first housing claim 1 , the first trigger material sealing the first housing to prevent fluid flow to the outlet in response to liquid being present in the first housing.11. The system of claim 10 , wherein the ...

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Номер записи: 94
06-02-2020 дата публикации

CENTRIFUGAL VALVE

Номер: US20200040670A1
Автор: "OBrien Robert", Palmer Larry, Snitkoff Joshua Raymond, van Hove Joeri
Принадлежит: Baker Hughes, a GE company, LLC

A debris management tool including a housing; an opening in the housing; a closure member movable between a closed position and an open position based upon centrifugal input. A method for managing debris in a borehole including rotating the tool as in any prior embodiment at a selected speed to cause centrifugal force to open the closure member; increasing pressure in a fluid surrounding the tool; entraining debris in fluid entering the tool due to differential pressure. 1. A debris management tool comprising:a housing;an opening in the housing;a closure member movable between a closed position and an open position based upon centrifugal input.2. The tool as claimed in wherein the centrifugal force uncovers the opening.3. The tool as claimed in wherein the centrifugal force covers the opening.4. The tool as claimed in wherein the opening is a passageway through the housing.5. The tool as claimed in wherein the passageway includes a radial component.6. The tool as claimed in wherein the closure member moves radially outwardly from a closed position to an open position.7. The tool as claimed in wherein the radial component extends partially through the housing and an intersecting conduit extends from the radial component to an inside surface of the housing.8. The tool as claimed in wherein the closure member includes a seal nestable in a seat of the intersecting conduit.9. The tool as claimed in wherein the seal is biased to the nested position.10. The tool as claimed in wherein the seal is biased by a spring.11. The tool as claimed in wherein the closure member is a door.12. The tool as claimed in wherein the door is slidable perimetrically of the housing between the closed and open positions.13. The tool as claimed in wherein the tool further includes a pivot shaft and an eccentric member responsive to centrifugal force input claim 11 , the eccentric member being connected to the door such that movement of the eccentric member causes movement of the door.14. The ...

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Номер записи: 95
06-02-2020 дата публикации

MPD WITH SINGLE SET POINT CHOKE

Номер: US20200040677A1
Автор: Spencer Danny
Принадлежит:

A method and system for conducting a subterranean operation that can include receiving a first signal at a controller indicating a drill pipe connection is beginning; switching the controller from a first control mode to a second control mode in response to receiving the first signal; determining a bottom hole pressure (BHP) in a wellbore; receiving a BHP set point at the controller and sending a first pressure set point to a single set point choke (SSPC); maintaining the BHP by comparing the determined BHP to the BHP set point and adjusting the first pressure set point based on the comparing; receiving a second signal at the controller after the connection or disconnection is complete and pumps are ramping up; and switching the controller back to the first control mode in response to the second signal. 1. A method for conducting a subterranean operation , the method comprising:receiving a first signal at a controller;switching the controller from a first control mode to a second control mode in response to receiving the first signal;determining a bottom hole pressure (BHP) in a wellbore;receiving a BHP set point at the controller and sending a first pressure set point to a single set point choke (SSPC);maintaining the BHP by adjusting the SSPC to track the first pressure set point;comparing the determined BHP to the BHP set point and adjusting the first pressure set point based on the comparing;receiving a second signal at the controller; andswitching the controller back to the first control mode in response to the second signal.2. The method of claim 1 , further comprising trapping pressure in the annulus to maintain the BHP when the controller in is the second control mode.3. The method of claim 1 , further comprising switching from the first control mode to the second control mode for each one of multiple pipe segment connections of a drill string.4. The method of claim 1 , wherein the BHP is determined by the controller using measurements of drill string true ...

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Номер записи: 96
06-02-2020 дата публикации

Method and apparatus for clearing a well bore

Номер: US20200040685A1
Автор: Steven Winkler
Принадлежит: QUANTUM DOWNHOLE SYSTEMS Inc

Methods and apparatuses are provided for clearing a wellbore using a component for milling and a component for suctioning within a wellbore. Obstructions such as ball frac seats, bridge plugs, or formation material can be milled within a wellbore. As a result, larger, unrestricted, diameters can be obtained within the liner/wellbore. The cleared wellbore can allow for various remedial tools to be run into the liner/wellbore. In addition, the milled particles can be suctioned/vacuumed up and can be pumped/pushed to surface in an underbalanced fashion. In some embodiments, this can be achieved by incorporating a bottom-hole pump or a venturi component into the bottomhole assembly. The system can be deployed using a spoolable single or multi-conduit coiled tubing system and can be configured as a well intervention or work-over technology. In some embodiments, the clearing equipment can be temporary or mobile.

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Номер записи: 97
18-02-2021 дата публикации

DRILL ROD WITH INTERNAL FLUID BYPASS PORTING

Номер: US20210047891A1
Автор: PRIMEVERT VINCENT
Принадлежит:

A drill rod can include a body having an outer surface, an inner surface, a longitudinal axis aligned with a drilling axis, and at least one longitudinally extending groove extending radially outwardly from the longitudinal axis relative to the inner surface. The inner surface and the at least one longitudinally extending groove can cooperate to define an interior space through which an inner assembly can be received as the inner assembly is advanced and retracted relative to the drilling axis. The at least one longitudinally extending groove of the body of the drill rod can be configured to permit axial flow of fluid through the drill rod as portions of the inner assembly engage the inner surface of the body of the drill rod. 1. A drill rod configured to form a portion of a drill string defining a drilling axis , wherein the drill string is configured to receive an inner assembly as the inner assembly is advanced and retracted relative to the drilling axis , the drill rod comprising:a body having an outer surface, an inner surface, a longitudinal axis aligned with the drilling axis, and at least one longitudinally extending groove extending radially outwardly from the longitudinal axis relative to the inner surface, wherein the inner surface and the at least one longitudinally extending groove cooperate to define an interior space through which the inner assembly is received as the inner assembly is advanced and retracted relative to the drilling axis,wherein the at least one longitudinally extending groove of the body of the drill rod is configured to permit axial flow of fluid through the drill rod as portions of the inner assembly engage the inner surface of the body of the drill rod.2. The drill rod of claim 1 , wherein the at least one longitudinally extending groove of the body of the drill rod comprises a plurality of longitudinally extending grooves.3. The drill rod of claim 2 , wherein each longitudinally extending groove is oriented parallel or ...

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Номер записи: 98
18-02-2016 дата публикации

WELLBORE DRILLING USING DUAL DRILL STRING

Номер: US20160047187A1
Автор: Dirksen Ron J., Lewis Derrick W.
Принадлежит:

A method and apparatus are disclosed for drilling a wellbore using a concentric dual drill string. Multiple individually selectively isolable crossover ports intervaled may be provided along the length of the drill string thereby facilitating pumping a well control fluid within a wellbore annulus without the need to run-in or trip-out the drill string. Multiple one way check valves may be included at various points within an inner pipe of the dual drill string to minimize settling of particulate matter during long periods of non-circulation. In an offshore arrangement, the drill string may be used without a marine riser. A rotating control device is provided, and a hydraulic power unit is located at the seafloor for controlling and lubricating the rotating control device. A pump may be located at the seafloor for managing wellbore annulus pressure via the rotating control device. 1. A drilling system comprising:a wellhead on a seafloor of a body of water, the wellhead defining a passage;a rotating control device having a housing carried atop the wellhead, the housing defining a passage in fluid communication with the passage of the wellhead;an offshore platform disposed above a surface of the body of water;a concentric dual drill pipe string carried by the platform and extending through the passage of the rotating control device into the passage of the wellhead, the wellhead and the string defining an annulus therebetween, the rotating control device including a sealing element that dynamically seals against an outer wall of the string so as to fluidly isolate the annulus from the body of water, the outer wall of the string above the rotating control device being in contact with the body of water;a hydraulic power unit near the seafloor and coupled to the rotating control device so as to supply a lubricant to the sealing element;a source of pressurized fluid selectively fluidly coupled to the annulus; andat least one communication link operable between a location at ...

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Номер записи: 99
16-02-2017 дата публикации

DISCONNECT AND OTHER DEVICES FOR DOWNHOLE ASSEMBLY

Номер: US20170044844A1
Автор: HARDY James, OLLERENSHAW Andrew
Принадлежит:

A downhole tool for incorporation in a drill pipe for selective operation of the tool from surface level when the tool is in a wellbore. The tool comprises a controller electrically powered by a power source separate from surface level, a first sensor of the controller to detect a dynamic variable of the tool in the wellbore and produce an output signal dependent thereon; a second sensor of the controller to detect a mechanical signal transmitted from an operator at surface level; a motor driven by the power source under the control of the controller when said mechanical signal is received; and an actuator driven by the motor to actuate the tool; wherein the controller switches between at least two states in response to changes in said dynamic variable, only in said second state the controller being receptive to said mechanical signal from the operator to drive the motor. The tool may be a disconnect device and/or a circ sub. A disconnect device has axially displaceable die retention sleeve preventing radial movement of dies that lock between the dies and a mandrel. When the retention sleeve is moved so that the dies can move, the disconnect is actuated. A circsub has a body having a throughbore receiving a piston movable between open and closed positions to control ports in the body selectively connecting the throughbore with the wellbore, said motor driving said actuator to enable or disable movement of the piston to said open position. 1. A downhole tool for incorporation in a drill pipe for selective operation of the tool from surface level when the tool is in a wellbore , said selectively operable tool comprising:a controller electrically powered by a power source separate from surface level;a first sensor of the controller to detect a dynamic variable of the tool in the wellbore and produce an output signal dependent thereon;a second sensor of the controller to detect a mechanical signal transmitted from an operator at surface level;a first motor driven by the ...

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Номер записи: 100