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1.发明授权公开(公告)号：US08893787B2
公开(公告)日：2014-11-25
申请号：US12954237
申请日：2010-11-24
IPC分类号： E21B43/25 , E21B43/12 , E21B34/10 , E21B43/16 , E21B43/14 , E21B43/24 , E21B33/14 , E21B34/14 , E21B34/00
CPC分类号： E21B34/14 , E21B33/14 , E21B34/10 , E21B34/102 , E21B43/14 , E21B43/162 , E21B43/2406 , E21B43/25 , E21B2034/007
摘要： Casing valves for selective well stimulation and control. A well system includes at least one valve interconnected in a casing string operable via at least one line external to the casing string to selectively control fluid flow between an exterior and interior of the casing string, and the casing string, valve and line being cemented in a wellbore. A method of selectively stimulating a subterranean formation includes: positioning a casing string in a wellbore, the casing string including spaced apart valves operable via a line to selectively control fluid flow between an interior and exterior of the casing string; and for each of multiple intervals of the formation in sequence, stimulating the interval by opening a corresponding one of the valves, closing the remainder of the valves, and flowing a stimulation fluid from the casing string into the interval.
摘要翻译： 用于选择性井刺激和控制的套管阀。 井系统包括至少一个在套管柱中相互连接的阀，其可通过套管柱外部的至少一个管线操作，以选择性地控制套管柱的外部和内部之间的流体流动，并且套管柱，阀和管线被粘合在 井筒 选择性地刺激地下地层的方法包括：将套管柱定位在井眼中，所述套管柱包括可经由管线操作的间隔开的阀，以选择性地控制套管柱的内部和外部之间的流体流动; 并且对于顺序的形成的多个间隔中的每一个，通过打开相应的一个阀来刺激间隔，闭合其余阀，并将刺激流体从套管柱流入间隔。
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公开(公告)号：US5487427A
公开(公告)日：1996-01-30
申请号：US223597
申请日：1994-04-06
申请人： Alfred R. Curington
发明人： Alfred R. Curington
IPC分类号： E21B23/01 , E21B33/129 , E21B23/00 , E21B23/06
CPC分类号： E21B23/01 , E21B33/129 , E21B33/1291
摘要： A slip release system is disclosed which undermines support for slips by virtue of selective weakening of a structural element supporting the slips in a set position.
摘要翻译： 公开了一种滑动释放系统，其通过在支撑在设定位置中的滑块的结构元件的选择性弱化来破坏对滑动的支撑。
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公开(公告)号：US20090277642A1
公开(公告)日：2009-11-12
申请号：US12374499
申请日：2006-08-03
申请人： Alfred R. Curington
发明人： Alfred R. Curington
CPC分类号： F16J15/121 , E21B34/06 , E21B2034/007 , F16J15/0887
摘要： A metal to metal seal for downhole tools. A sealing device includes a metal seal. A nonmetal seal may be used to bias the metal seal in a radial direction in response to a pressure differential applied to the sealing device. A well tool includes a housing assembly, a closure member and the sealing device. Both of the metal and nonmetal seals contact a selected one of the housing assembly and closure member when the closure member blocks flow through the housing assembly. A method of sealing between the housing assembly and closure member includes the step of displacing the closure member to relieve the pressure differential, the metal seal continuing to seal against the pressure differential until the nonmetal seal no longer seals between the housing assembly and the closure member.
摘要翻译： 用于井下工具的金属对金属密封。 密封装置包括金属密封件。 可以使用非金属密封件来响应于施加到密封装置的压差而在径向上偏压金属密封件。 井具包括壳体组件，封闭构件和密封装置。 当闭合构件阻塞流过壳体组件时，金属和非金属密封件都与壳体组件和闭合构件中的所选择的一个接触。 在壳体组件和闭合构件之间的密封方法包括使封闭构件移位以减轻压力差的步骤，金属密封件继续密封压力差，直到非金属密封件不再在壳体组件和闭合构件之间密封 。
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4.发明授权Method and apparatus for isolating one horizontal production zone in a multilateral well 失效在多边井中分离一个水平生产区的方法和装置
公开(公告)号：US5311936A
公开(公告)日：1994-05-17
申请号：US926451
申请日：1992-08-07
申请人： Robert J. McNair , Mark W. Brockman , L. Cameron White , Jeffrey D. Cockrell , Alfred R. Curington , Daniel S. Bangert
发明人： Robert J. McNair , Mark W. Brockman , L. Cameron White , Jeffrey D. Cockrell , Alfred R. Curington , Daniel S. Bangert
CPC分类号： E21B7/061 , E21B41/0035 , E21B43/14
摘要： In accordance with the present invention, a plurality of methods and devices are provided for solving important and serious problems posed by lateral (and especially multilateral) completion in a wellbore including methods and devices for isolating a lateral well from other lateral branches in a multilateral well so as to prevent migration of fluids and to comply with regulations regarding the separate production of different production zones. Various methods and devices are provided for fluid isolation of a lateral well from other lateral wells and for separate production from a lateral well without commingling the production fluids. These methods include the use of a side pocket mandrel, whipstocks with sealable bores and valving techniques wherein valves are located at the surface or downhole at the junction of a particular lateral.
摘要翻译： 根据本发明，提供了多种方法和装置，用于解决在井眼中由横向（特别是多边）完井造成的重要和严重问题，包括用于将侧井与多边井中的其他侧向分支隔离的方法和装置 以防止流体的迁移，并符合关于分开生产不同生产区的规定。 提供各种方法和装置用于从其他侧向井的侧向井的流体隔离以及用于从侧井分离生产而不混合生产流体。 这些方法包括使用侧袋心轴，具有可密封孔的造斜器和阀门技术，其中阀位于特定侧面的接合处的表面或井下。
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公开(公告)号：US4030554A
公开(公告)日：1977-06-21
申请号：US593692
申请日：1975-07-07
CPC分类号： E21B4/14
摘要： An airhammer embodies an outer housing structure connectible to a rotatable drill pipe string through which compressed air is conducted. A hammer piston reciprocates in the housing structure, compressed air being directed alternately to the upper and lower ends of the piston to effect its reciprocation in the structure, each downward stroke inflicting an impact blow upon the anvil portion of an anvil bit extending upwardly within the lower portion of the housing structure. Upon elevating the airhammer off the bottom of the bore hole being drilled, the anvil bit drops downwardly of the housing structure to open one or more air bleeding grooves in the anvil bit, compressed air in the housing structure bleeding quickly through such grooves and preventing or stopping the hammer piston from reciprocating and impacting against the anvil bit. A step is also placed in the bit at the junction between its head and shank to break the stress wave, incident to the hammer piston striking the anvil bit, before the wave reaches the bit head, thereby reducing the induced stress at the head and shank junction, which increases considerably the fatigue life of the bit, thereby preventing breaking of the shank at its junction with the bit head.
摘要翻译： 空气锤体现了可连接到可旋转的钻杆串的外部壳体结构，压缩空气通过该钻杆串被传导。 锤式活塞在壳体结构中往复运动，压缩空气交替地被引导到活塞的上端和下端，以在其结构中进行往复运动，每个向下行程对在砧座内的向上延伸的砧座的砧座部分施加撞击冲击 壳体结构的下部。 在将空气锤从被钻孔的底部提升时，砧座从壳体结构向下落下以打开砧座中的一个或多个排气凹槽，壳体结构中的压缩空气迅速通过这些凹槽而流失，并防止或 使锤式活塞停止往复运动并撞击砧座。 在头部和柄部之间的连接点处还放置一个步骤，以在波到达钻头头之前打破应力波，入射到锤子活塞撞击砧座，从而减小头部和柄部处的诱发应力 接头，这大大增加了钻头的疲劳寿命，从而防止柄部在与钻头头的连接处断裂。
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公开(公告)号：US3941196A
公开(公告)日：1976-03-02
申请号：US517540
申请日：1974-10-24
IPC分类号： E21B4/00 , E21B4/14 , E21B4/20 , E21B10/48 , E21B10/56 , E21B21/02 , E21B21/12 , E21B25/00 , E21B49/02 , F16L9/18 , F16L39/00 , E21B1/06 , E21B3/12 , E21B5/00
摘要： An airhammer and core bit apparatus including a housing and a hammer piston reciprocable in the housing for delivering repeated impact blows to an anvil secured to or forming part of a core bit which produces a core in a bore hole being drilled. A central core receiving tube extends through the housing and hammer piston, through which the core formed by the bit is conducted upwardly and through the hammer piston to the top of the bore hole, part of the compressed air supplied to the airhammer being diverted to the central tube for elevating the core therewithin toward the top of the bore hole.
摘要翻译： 一种包括壳体和锤状活塞的气锤和芯钻头装置，其可在所述壳体中往复运动，以将重复的冲击吹送到固定到或形成钻头的一部分的砧座的砧座，所述砧座在钻孔中产生芯。 中心芯接收管延伸穿过壳体和锤活塞，通过该活塞将由钻头形成的芯向上引导并通过锤活塞通向钻孔的顶部，供应到气锤的部分压缩空气被转移到 中心管用于将芯升高到钻孔的顶部。
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公开(公告)号：US07950461B2
公开(公告)日：2011-05-31
申请号：US12275666
申请日：2008-11-21
摘要： A well system includes a valve interconnected in a casing string and selectively configurable between first and second configurations via a line external to the casing string, the valve in the first configuration being operable to selectively permit and prevent fluid flow between the casing string exterior and interior, and in the second configuration to selectively filter and prevent fluid flow between the casing string exterior and interior. A method of selectively stimulating a formation includes: positioning a casing string in a wellbore intersecting the formation, the casing string including a valve operable via an external line to selectively permit and prevent fluid flow between the casing string interior and exterior; and stimulating an interval set of the formation by opening the valve, flowing a stimulation fluid from the casing string into the interval set, and then configuring the valve to filter formation fluid which flows into the casing string.
摘要翻译： 井系统包括在套管柱中互连的阀门，并且经由套管柱外部的管路可选择性地配置在第一和第二构造之间，第一构造中的阀可操作以选择性地允许和防止套管柱外部和内部之间的流体流动 并且在第二构造中选择性地过滤和防止套管柱外部和内部之间的流体流动。 选择性地刺激地层的方法包括：将套管柱定位在与地层相交的井眼中，套管柱包括可经由外部管线操作的阀，以选择性地允许和防止套管柱内部和外部之间的流体流动; 并且通过打开所述阀来刺激所述地层的间隔集合，使刺激流体从所述套管串流入所述间隔组，然后构成所述阀以过滤流入所述套管柱的地层流体。
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8.发明授权Packer assembly and means for activating same only in smaller diameter well conduit 失效封隔器组件和仅在较小直径的井管中激活相同的装置
公开(公告)号：US4949792A
公开(公告)日：1990-08-21
申请号：US345206
申请日：1989-04-28
IPC分类号： E21B23/00 , E21B23/06 , E21B33/129
CPC分类号： E21B23/006 , E21B23/00 , E21B23/06 , E21B33/1291
摘要： A packer assembly is provided for use in a subterranean well and settable only by longitudinal manipulation of a tubular workstring. The assembly has an outer housing and a seal assembly with anchoring slips carried by the housing in retracted position and movable to expanded position along the wall of a casing or the like. A longitudinally extending central mandrel telescopes within the housing. Orienting and setting pins are provided for initial receipt within orienting and setting slots with the setting pins being moved to the orienting slot to permit setting of the packer. The seal assembly and anchoring slips are maintained in retracted position and are responsive to a variation in internal diameter between a first and second tubular conduit to thereafter permit the manipulating device to move the seal assembly and the anchoring slips to expanded position within only the second tubular conduit which has a diameter less than that of the first tubular conduit.
摘要翻译： 封隔器组件被提供用于地下井，并且仅通过纵向操纵管状工作绳可设置。 组件具有外壳体和密封组件，其具有由壳体承载在缩回位置的锚定滑动件，并且可沿壳体等的壁移动到扩展位置。 纵向延伸的中心心轴在壳体内望远镜。 提供定向和定位销，用于定向和设定槽中的初始接收，将定位销移动到定向槽以允许打包机的设置。 密封组件和锚固滑动件保持在缩回位置并且响应于第一和第二管状导管之间的内径变化，此后允许操纵装置将密封组件和锚定滑动件移动到只有第二管状件 导管的直径小于第一管状导管的直径。
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公开(公告)号：US4304299A
公开(公告)日：1981-12-08
申请号：US170457
申请日：1980-07-21
IPC分类号： E21B7/06 , E21B7/08 , E21B23/02 , E21B47/024 , E21B23/00
CPC分类号： E21B23/02 , E21B47/024 , E21B7/061
摘要： A method is provided for the angular orientation of a whipstock having an arcuate tool directing face and a whipstock anchor in a packer which is installed in a well, the packer and the anchor having longitudinally extending cooperable key elements engageable when the anchor is assembled in the packer. The angular disposition of the key element in the packer relative to polar coordinates is determined by a downhole survey. The whipstock is assembled on the whipstock anchor outside the well with the whipstock being angularly adjustable relative to the whipstock anchor about an axis that will be coincident with the conduit axis. The angular position of the whipstock in the whipstock anchor is adjusted to the desired angular displacement relative to the whipstock anchor key element. The whipstock is fixed in the adjusted position in the whipstock anchor and the whipstock anchor is lowered with the whipstock attached into the well to engage the key element of the whipstock anchor with the key element of the packer.
摘要翻译： 提供了一种用于具有弧形工具引导面和造斜器锚定器的造斜器的角度定向的方法，所述打包器安装在密封件中，所述打包器安装在井中，所述封隔器和所述锚具具有纵向延伸的可配合的键元件， 封隔器 关键元件在封隔器中相对于极坐标的角度配置由井下测量确定。 造斜器组装在井外的造斜器锚杆上，造斜器相对于造斜装置锚定体可以围绕将与导管轴线重合的轴线成角度地调节。 造斜器在造斜器锚杆中的角度位置被调整到相对于造斜器锚定键元件所需的角位移。 造斜器固定在造斜器锚杆中的调节位置，造斜器锚杆随着造斜器固定在井中而下降，从而将造斜装置的关键元件与封隔器的关键元件相接合。
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公开(公告)号：US3991834A
公开(公告)日：1976-11-16
申请号：US593738
申请日：1975-07-07
申请人： Alfred R. Curington
发明人： Alfred R. Curington
摘要： A rotatable airhammer including an outer housing structure in which a hollow hammer piston is reciprocable to impact against an anvil bit used in drilling a bore hole. The anvil bit has a central passage communicating with inner core sample tubing extending through the piston to the upper end of the housing structure, such tubing housing structure being connectible to a string of concentric dual drill pipe extending to the top of the bore hole. Compressed air is directed alternately to the annular space between the tubing and housing structure above and below the piston to reciprocate the latter for repeated impact action against the anvil bit, air being discharged from the lower portion of the housing structure to clear the bottom of the bore hole of cuttings and direct them into the central passage through the bit, the inner tubing and inner drill pipe portion to the top of the hole. A gauge sleeve is mounted on the housing structure a short distance above the lower end of the anvil bit, exhaust air from the airhammer being directed into the bore hole immediately above and below the sleeve to provide a static air seal preventing cuttings from passing upwardly around the sleeve, insuring passage of all cuttings into the central bit passage. Exhaust air is also directed into the bore hole at a distance above the gauge sleeve to blow bore hole debris externally of the housing structure and drill pipe upwardly through the annulus around the drill pipe to the top of the bore hole.
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