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公开(公告)号：US5433275A
公开(公告)日：1995-07-18
申请号：US276937
申请日：1994-07-19
摘要： An anchor assembly may be used for interconnecting a downhole tubular member with a packer affixed within a well bore. The anchor assembly may include a mandrel fixedly secured to production tubing, and a collet mechanism axially movable relative to the mandrel. The collet mechanism may have a plurality of axially extending collet fingers each having a first plurality of threads for mating engagement with the packer mandrel threads and a second plurality of threads for mating engagement with the anchor assembly mandrel threads. A sealed member is provided for sealing engagement between the mandrel and the downhole packer. The anchor assembly of the present invention allows substantial axial forces to be transmitted between the production tubing and the set packer without risking collapse of the packer mandrel or failure of the bearing surfaces between the production tubing mandrel and the collet mechanism.
摘要翻译： 锚固组件可以用于将井下管状构件与固定在井眼内的封隔器相互连接。 锚固组件可以包括固定在生产管道上的心轴和相对于心轴可轴向运动的夹头机构。 夹头机构可以具有多个轴向延伸的夹爪，每个夹头具有用于与封隔器心轴螺纹配合接合的第一多个螺纹，以及用于与锚固组件心轴螺纹配合接合的第二多个螺纹。 提供密封构件用于密封心轴和井下封隔器之间的接合。 本发明的锚固组件允许在生产管道和整体封隔器之间传输大量的轴向力，而不会使封隔器心轴崩溃或生产管芯和夹头机构之间的轴承表面失效。
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公开(公告)号：US08047280B2
公开(公告)日：2011-11-01
申请号：US12877772
申请日：2010-09-08
IPC分类号： E21B33/12
CPC分类号： E21B33/134 , E21B33/1216
摘要： A downhole tool for isolating zones in a well, the tool including a mandrel, a sealing element disposed around the mandrel, and an upper cone disposed around the mandrel proximate an upper end of the sealing element. The tool further including an upper slip assembly disposed around the mandrel adjacent a sloped surface of the upper cone, a lower cone disposed around the mandrel proximate a lower end of the sealing element, a lower slip assembly disposed around the mandrel adjacent a sloped surface of the lower cone, and two element end rings. Further, the tool includes a first element end ring disposed adjacent the upper end of the sealing element and a second element end ring disposed adjacent the lower end of the sealing element, and two element barrier assemblies, each assembly disposed adjacent one of the two element end rings.
摘要翻译： 一种用于隔离井中的区域的井下工具，所述工具包括心轴，围绕心轴设置的密封元件以及靠近密封元件的上端设置在心轴周围的上锥体。 该工具还包括围绕心轴邻近上锥体的倾斜表面设置的上滑动组件，邻近密封元件的下端设置在心轴附近的下锥体;下滑动组件，其围绕心轴邻近倾斜表面设置; 下锥体和两个元件端环。 此外，工具包括邻近密封元件的上端设置的第一元件端环和邻近密封元件的下端设置的第二元件端环和两个元件阻挡组件，每个组件邻近两个元件之一 端环。
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公开(公告)号：US5417288A
公开(公告)日：1995-05-23
申请号：US265195
申请日：1994-06-24
摘要： A liner hanger assembly structurally interconnects a casing within a bore hole and a tubular liner suspended from the casing. The hanger body includes a plurality of circumferentially spaced piston bores. A plurality of slips are provided circumferentially about, the hanger body for gripping engagement with an internal surface of the casing. A plurality of pistons are each housed within a respective piston bore and are movably responsive to internal pressure within the hanger body. A sleeve is axially movable with respect to the hanger body in response to axial movement of the plurality of pistons. The sleeve is interconnected with each of the plurality of slips to cause radially outward movement of the slips in response to movement of the pistons. The liner hanger assembly has a high fluid pressure rating for ensuring reliable gripping engagement with the casing, yet creates a comparatively low fluid restriction in the annulus between the casing and the liner.
摘要翻译： 衬管悬挂组件结构地将钻孔内的壳体和从壳体悬挂的管状衬套相互连接。 衣架主体包括多个周向间隔开的活塞孔。 多个滑动件周向设置，衣架主体用于与壳体的内表面夹紧接合。 多个活塞各自容纳在相应的活塞孔内，并且可移动地响应于衣架主体内的内部压力。 响应于多个活塞的轴向运动，套筒可相对于衣架主体轴向移动。 套筒与多个滑动件中的每一个相互连接，以响应于活塞的移动而引起滑动件的径向向外运动。 衬管悬挂器组件具有高的流体压力等级，用于确保与壳体的可靠的夹紧接合，但是在壳体和衬套之间的环空中产生相对较低的流体限制。
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公开(公告)号：US4848469A
公开(公告)日：1989-07-18
申请号：US206807
申请日：1988-06-15
IPC分类号： E21B43/10
CPC分类号： E21B43/10
摘要： An improved setting tool is provided for positioning, setting, and releasing a liner in a subterranean wellbore. The setting tool includes a plurality of fingers, each biased for locking engagement with axially spaced recesses provided in the wall of the tool mandrel axially above a lowermost position of the liner hanger connecting nut. The fingers are automatically forced upward into a release position when interference rollers move radially out of their respective recesses and separate a plurality of axially movable sleeves. Premature release of the liner is avoided by positioning the recesses in the mandrel such that the fingers are in a lock position when the tool string is either in tension or compression. The liner can be rotated after setting the liner hanger, so that the setting tool and drill string can thereafter be reliably retrieved by simple axial pick-up.
摘要翻译： 提供了一种改进的设置工具，用于在地下井眼中定位，设置和释放衬垫。 固定工具包括多个指状物，每个指状物被偏压用于与设置在工具心轴的壁中的轴向间隔开的凹部轴向地在衬套悬挂器连接螺母的最低位置上方锁定接合。 当干涉辊径向移出其各自的凹槽并分离多个可轴向移动的套筒时，手指自动被迫向上进入释放位置。 通过将凹部定位在心轴中来避免衬套的过早释放，使得当工具串处于张紧或压缩状态时，手指处于锁定位置。 在设置衬管悬挂架之后，可以旋转衬套，从而可以通过简单的轴向拾取器可靠地回收定位工具和钻柱。
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公开(公告)号：US07455118B2
公开(公告)日：2008-11-25
申请号：US11392112
申请日：2006-03-29
IPC分类号： E21B33/12
CPC分类号： E21B33/134 , E21B23/06 , E21B33/129 , E21B33/1295
摘要： A downhole tool includes a mandrel, a sealing element disposed around the mandrel, an upper cone disposed above the sealing element and a lower cone disposed below the sealing element, an upper slip assembly disposed above the upper cone and a lower slip assembly disposed below the sealing element, at least one lock ring configured to maintain energization of the sealing element when the downhole tool is set, and a secondary lock that couple the upper cone with the at least one lock ring. A method of increasing pack-off force of a downhole tool includes setting the downhole tool and energizing further the sealing element by applying a differential pressure to the downhole tool. A method of retrofitting a downhole tool includes providing a secondary lock disposed around a mandrel, the secondary lock including at least one arm having an axial portion extending downwardly therefrom and a threaded portion, and assembling the secondary lock to the downhole tool, the assembling including engaging the threaded portion of the secondary lock to a threaded surface of an upper cone disposed around the mandrel of the downhole tool.
摘要翻译： 井下工具包括心轴，围绕心轴设置的密封元件，设置在密封元件上方的上锥体和设置在密封元件下方的下锥体，设置在上锥体上方的上滑动组件和设置在下锥体下方的下滑动组件 密封元件，至少一个锁定环，其构造成当所述井下工具被设置时保持所述密封元件的通电;以及次级锁，所述次锁将所述上锥体与所述至少一个锁定环联接。 增加井下工具的包装力的方法包括设置井下工具并通过向井下工具施加差压来进一步激励密封元件。 一种改进井下工具的方法包括提供围绕心轴设置的辅助锁，所述辅助锁包括至少一个臂，所述至少一个臂具有从其向下延伸的轴向部分和螺纹部分，以及将所述次锁组装到所述井下工具，所述组装包括 将副锁定件的螺纹部分接合到设置在井下工具的心轴周围的上锥体的螺纹表面。
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公开(公告)号：US07424909B2
公开(公告)日：2008-09-16
申请号：US11064306
申请日：2005-02-23
IPC分类号： E21B23/01
CPC分类号： E21B33/134 , E21B33/1204 , E21B33/129
摘要： A drillable bridge plug comprising a mandrel, a sealing element disposed around the mandrel, a plurality of backup rings adjacent the sealing element, a lower slip assembly disposed around the mandrel, an upper slip assembly disposed around the mandrel, an upper cone adjacent the upper slip assembly and engaged with the mandrel with at least one axial locking apparatus and at least one rotational locking apparatus, and a lower cone adjacent the lower slip assembly and engaged with the mandrel with at least one axial locking apparatus and at least one rotational locking apparatus. A drillable bridge plug comprising a mandrel and at least one slip assembly at least partially made of a material having less than 10% elongation.
摘要翻译： 一种可钻的桥塞，其包括心轴，围绕心轴设置的密封元件，与密封元件相邻的多个支撑环，围绕心轴设置的下滑动组件，围绕心轴设置的上滑动组件，邻近上部 滑动组件并且与心轴接合，具有至少一个轴向锁定装置和至少一个旋转锁定装置，以及邻近下滑动组件的下锥体，并且与心轴与至少一个轴向锁定装置和至少一个旋转锁定装置 。 一种可钻式桥塞，其包括心轴和至少部分地由具有小于10％伸长率的材料制成的至少一个滑动组件。
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7.发明授权Straight Bore metal-to-metal wellbore seal apparatus and method of sealing in a wellbore 失效直孔金属 - 金属井筒密封装置和密封在井眼中的方法
公开(公告)号：US5511620A
公开(公告)日：1996-04-30
申请号：US317109
申请日：1994-10-03
申请人： John L. Baugh , George J. Melenyzer
发明人： John L. Baugh , George J. Melenyzer
IPC分类号： E21B33/12 , E21B33/128
CPC分类号： E21B33/128 , E21B33/1212 , E21B33/1216
摘要： A seal apparatus is provided for use in a subterranean wellbore having a wellbore tubular disposed therein that defines a wellbore surface. A conveyance tubular is provided, which is positionable within the subterranean wellbore. A sealing ring is provided, and disposed about at least a portion of the conveyance tubular. The sealing ring has a first surface proximate the conveyance tubular and a second surface which is removed in distance from the conveyance tubular. The second surface defines a sealing surface, and includes a plurality of portions, with selected ones of the plurality of portions of the sealing ring extending radially from the conveyance tubular in at least one radial dimension. The selected portions define at least one metal seal point for selectively and sealingly engaging the wellbore surface. The seal apparatus is operable in a plurality of modes, including a running mode of operation and a sealing mode of operation. In the running mode of operation, the seal ring is maintained in a radially-reduced position, out of engagement with the wellbore surface. In the sealing mode of operation, the at least one metal seal point of the sealing ring is in sealing metal-to-metal engagement with the wellbore surface, providing a fluid-tight seal at a selected location between the conveyance tubular and the wellbore tubular. Also provided is an actuator member, which is selectively and remotely actuable, for urging the sealing ring between the running and sealing modes of operation.
摘要翻译： 提供一种用于地下井眼的密封装置，其具有设置在其中的井眼管，其限定了井筒表面。 提供了一种输送管，其可定位在地下井眼内。 提供密封环，并且设置在输送管的至少一部分周围。 密封环具有靠近输送管的第一表面和与输送管相隔一定距离的第二表面。 第二表面限定密封表面，并且包括多个部分，密封环的多个部分中的选定的部分在至少一个径向尺寸上从输送管径向延伸。 所选择的部分限定用于选择性地和密封地接合井筒表面的至少一个金属密封点。 密封装置可以以多种模式操作，包括运行操作模式和密封操作模式。 在运行运行模式中，密封环保持在径向减小的位置，脱离与井筒表面的接合。 在密封操作模式中，密封环的至少一个金属密封点与井筒表面密封金属 - 金属接合，在输送管和井筒管之间的选定位置提供流体密封 。 还提供了致动器构件，其被选择性地和远程地致动，用于在运行和密封操作模式之间推动密封环。
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公开(公告)号：US5330001A
公开(公告)日：1994-07-19
申请号：US979620
申请日：1992-09-23
CPC分类号： E21B23/02 , E21B17/1014
摘要： A lead-in guide assembly is shown for centralizing a downhole tool being run from a well surface within a well bore to a selected downhole location. The lead-in guide can be utilized as a seal assembly guide including a seal carrier provided with a leading end and a trailing end which is made up in a tubing string leading to the well surface. A collapsible guide is located at the leading end of the seal carrier for centralizing the seal carrier within the surrounding cased well bore as the seal assembly is being run into position above a cooperating sealing bore located at a downhole location. The guide means moves to a retracted position as the assembly moves within the cooperating sealing bore.
摘要翻译： 引导引导组件被示出用于集中从井眼中的井表面运行到选定的井下位置的井下工具。 导入引导件可以用作密封组件引导件，其包括设置有引导端和尾端的密封载体，所述前端和尾端构成通向井表面的管柱。 当密封组件正在位于位于井下位置的配合密封孔上方的位置时，可折叠引导件位于密封承载件的前端，用于将密封载体集中在周围的套管井眼内。 当组件在协作的密封孔内移动时，引导装置移动到缩回位置。
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公开(公告)号：US20130092375A1
公开(公告)日：2013-04-18
申请号：US13596134
申请日：2012-08-28
申请人： George J. Melenyzer
发明人： George J. Melenyzer
CPC分类号： E21B33/16 , E21B33/05 , E21B33/12 , E21B43/261
摘要： Methods and apparatus for liner wiper plugs with bypass options to allow displacing fluid to be pumped through after the liner wiper plug is set in a liner hanger system landing collar. By pumping displacing fluids through the bypass, uncured cement may be removed from the shoe track area and an area external to the shoe track area.
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公开(公告)号：US20100326650A1
公开(公告)日：2010-12-30
申请号：US12877772
申请日：2010-09-08
IPC分类号： E21B33/134
CPC分类号： E21B33/134 , E21B33/1216
摘要： A downhole tool for isolating zones in a well, the tool including a mandrel, a sealing element disposed around the mandrel, an upper cone disposed around the mandrel proximate an upper end of the sealing element, an upper slip assembly disposed around the mandrel adjacent a sloped surface of the upper cone, a lower cone disposed around the mandrel proximate a lower end of the sealing element, a lower slip assembly disposed around the mandrel adjacent a sloped surface of the lower cone, two element end rings, a first element end ring disposed adjacent the upper end of the sealing element and a second element end ring disposed adjacent the lower end of the sealing element, and two element barrier assemblies, each assembly disposed adjacent one of the two element end rings is disclosed.
摘要翻译： 一种井下工具，用于隔离井中的区域，所述工具包括心轴，围绕心轴设置的密封元件，邻近密封元件的上端设置在心轴周围的上锥体;邻近心轴周围设置的上滑动组件 上锥体的倾斜表面，靠近密封元件的下端设置在心轴周围的下锥体;邻近心轴邻近下锥体的倾斜表面设置的下滑动组件，两个元件端环，第一元件端环 设置在密封元件的上端附近并且邻近密封元件的下端设置的第二元件端环和两个元件阻挡组件，每个组件邻近两个元件端环之一设置。
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