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公开(公告)号：US20180340385A1
公开(公告)日：2018-11-29
申请号：US15602636
申请日：2017-05-23
发明人： Scott CROWLEY
CPC分类号： E21B23/00 , E21B34/10 , E21B34/14 , E21B2034/007
摘要： A shifting tool for use in displacing a component of a well tool can include an inner mandrel, at least one shifting key, at least one reset dog, and a retraction sleeve. The shifting key retracts relative to the inner mandrel in response to displacement of the retraction sleeve relative to the shifting key, and the reset dog extends relative to the inner mandrel in response to displacement of the inner mandrel relative to the reset dog. A method of operating a shifting tool can include engaging the shifting tool with a component of a well tool in a well, and applying a force from the shifting tool to the well tool component, thereby causing one or more reset dogs to extend into engagement with the well tool component.
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公开(公告)号：US20180252075A1
公开(公告)日：2018-09-06
申请号：US15760216
申请日：2015-10-29
发明人： Wesley P. DIETZ
CPC分类号： E21B41/0035 , E21B7/061 , E21B23/00
摘要： A well system having primary and secondary wellbores wherein a completion sleeve is positioned in the primary wellbore and defines a window aligned with a primary wellbore casing exit and upper and lower couplings defined on opposing axial ends of the window. An isolation sleeve is positioned within the completion sleeve and defines a helical slot. The isolation sleeve is movable between a first position, where a engagement device engages the upper coupling and the isolation sleeve occludes the window, and a second position, where the isolation sleeve is moved axially within completion sleeve to expose the window and the engagement device engages the lower coupling. A whipstock assembly includes a latch key that selectively locates and engages an inner profile of the isolation sleeve to move the isolation sleeve to the second position. An orienting key mates with the helical slot to angularly orient the whipstock assembly.
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公开(公告)号：US10053951B2
公开(公告)日：2018-08-21
申请号：US15648277
申请日：2017-07-12
申请人： BISN TEC LTD
发明人： Paul Carragher , Leo Richards
IPC分类号： E21B33/13 , E21B23/00 , E21B33/12 , E21B33/134 , E21B33/138 , E21B36/00
CPC分类号： E21B33/13 , E21B23/00 , E21B33/12 , E21B33/134 , E21B33/138 , E21B36/00
摘要： Apparatus, in the form of a eutectic alloy plug (1) and a deployment heater (10) are provided. The plug (1) and the deployment heated (10) are provided with means (5, 13) for releasably retaining the deployment heater (10) within a cavity (4) in the plug (1). The nature of the retaining means is such that once the plug (1) is secured in a well the heater (10) can be recovered without the plug (1). An extraction heater (20), which is also receivable within the cavity (4) of the plug (1), is provided to re-melt the eutectic alloy and thus enable the extraction of the plug from a well. Various method of plugging abandoned wells are made possible by the control that the provided apparatus gives.
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公开(公告)号：US20180209238A1
公开(公告)日：2018-07-26
申请号：US15414176
申请日：2017-01-24
IPC分类号： E21B33/12 , E21B29/00 , E21B17/042
摘要： A string from the surface is connected to a packer extension with a thread to provide a metal to metal seal for production or injection through the packer. The thread provides a metal to metal seal. The initial string is released from the packer extension by a tubular cut made with a cutting tool above the thread that provides the metal to metal seal to the packer extension. An outer sleeve surrounds an expanded length of wall which is the target cut zone above the threaded connection. A cut through the tubular does not cut the outer sleeve. The outer sleeve features a left handed square thread to engage a known released tool run in on a string to connect to the packer release mechanism and release the packer for removal with the release tool suspended from a string.
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公开(公告)号：US10006263B2
公开(公告)日：2018-06-26
申请号：US14115627
申请日：2012-05-07
CPC分类号： E21B23/00 , E21B17/1014 , E21B23/02 , E21B34/14
摘要： A shifting tool for use in shifting axial position of a shiftable element in a well. The tool comprises a linkage mechanism configured to translate an independent axial force into a dedicated radial force applied to expansive elements thereof. Thus, the elements may radially expand into engagement with the shiftable element free of any substantial axial force imparted thereon. As such, a more discretely controllable shifting actuation may be attained, for example, as directed from an oilfield surface. Indeed, real-time intelligent feedback may also be made available through use of such elements in conjunction with the noted linkage mechanism.
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公开(公告)号：US20180002993A1
公开(公告)日：2018-01-04
申请号：US15638224
申请日：2017-06-29
摘要： A system includes a wear bushing retrieval tool. The wear bushing retrieval tool an annular main body configured to be disposed about a tubular string, a plurality of locking dogs, wherein each locking dog of the plurality of locking dogs is pivotably coupled to the annular main body, a first axial securement feature coupled to the annular main body, and a second axial securement feature coupled to the main body, wherein the first and second axial securement features are configured to cooperatively axially capture a coupling of the tubular string when the annular main body is disposed about the tubular string.
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7.发明授权公开(公告)号：US09850735B2
公开(公告)日：2017-12-26
申请号：US14769417
申请日：2014-01-14
摘要： A method of using a wellbore isolation device comprises: introducing the wellbore isolation device into the wellbore, wherein the isolation device comprises: (A) a matrix, wherein the matrix has a phase transition temperature less than or equal to the bottomhole temperature of the wellbore; and (B) at least one reinforcement area, wherein the reinforcement area: (i) comprises at least a first material, wherein the first material undergoes galvanic corrosion; and (ii) has a greater tensile strength and/or shear strength than the matrix.
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公开(公告)号：US20170342804A1
公开(公告)日：2017-11-30
申请号：US15167587
申请日：2016-05-27
发明人： Srinivas Poluchalla , Arun Arumugam
CPC分类号： E21B34/14 , E21B23/00 , E21B34/101 , E21B2034/002
摘要： A technique facilitates control over at least one flow control assembly position to control fluid with respect to a tubing string. The flow control assembly is disposed along the tubing string and comprises a flow control valve and a motor to control the operational position of the flow control valve. The flow control valve may comprise a plunger and a seal system to provide a seal between the plunger and a surrounding structure. Additionally, the flow control valve comprises a pressure balanced system. The pressure balanced system serves to balance pressure acting on the plunger such that the motor is able to move the plunger by simply overcoming friction of the seal system without overcoming a pressure differential otherwise acting on the plunger.
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公开(公告)号：US09784092B2
公开(公告)日：2017-10-10
申请号：US14398054
申请日：2013-05-01
发明人： Anthony Southgate , Fern Chin , Allan Morrice , Grzegorz Jurga
IPC分类号： E21B47/01 , E21B23/00 , E21B41/00 , E21B43/1185 , E21B33/128 , E21B47/06 , E21B47/12
CPC分类号： E21B47/011 , E21B23/00 , E21B33/128 , E21B41/00 , E21B41/0021 , E21B43/1185 , E21B47/01 , E21B47/06 , E21B47/065 , E21B47/122
摘要： A downhole control device is configured to activate downhole equipment requiring control signals. The device having a housing adapted to protect electronic components; a transducer configured to measure one or more of pressure and temperature; an accelerometer; and control circuitry in communication with the transducer and the accelerometer and configured to control the operation of a downhole tool depending on data from one or more of the transducer and accelerometer. The transducer, the accelerometer and at least part of the control circuitry are mounted on a chassis that is removably inserted within the housing.
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公开(公告)号：US20170226814A1
公开(公告)日：2017-08-10
申请号：US15328390
申请日：2014-08-22
CPC分类号： E21B23/00 , E21B17/06 , E21B41/0092 , E21B47/12
摘要： A flexible smart release tool enables a control unit at the surface to individually communicate with release tools that are located downhole. The release tools may be individually addressed using a unique logical identifier. Thus, a specific release tool may be sent a command to release an attached downhole tool string at any time. The release tool may include control logic for receiving the command and using an onboard clock for timing of activation of a release interface, as optionally specified in the command. A heartbeat function may be implemented between the release tool and the control unit.
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