Slip gripping mechanism with automatic segment alignment
    21.
    发明授权
    Slip gripping mechanism with automatic segment alignment 失效
    具有自动片段对准的滑动夹紧机构

    公开(公告)号:US4750563A

    公开(公告)日:1988-06-14

    申请号:US77566

    申请日:1987-07-24

    申请人: John L. Baugh

    发明人: John L. Baugh

    IPC分类号: E21B23/01 E21B23/00

    CPC分类号: E21B23/01

    摘要: A slip gripping mechanism is shown for supporting a string of cylindrical conduit within the interior bore of a circumscribing well conduit. A cone retaining ring engages a plurality of floating cone segments which define spaced longitudinal slots on the outside of the cylindrical conduit. Vertically shiftable slips are carried in spaced-apart fashion on the cylindrical conduit and have side edges adapted to engage mating profiles formed in the slots. The slots form guideways for the slips for shifting the slips upwardly and outwardly between a set position engaging the circumscribing conduit and an unset position. Selected ones of the slips and cone segments are tapered to index the slips and facilitate alignment within the slots as the slips are brought into contact with the cones during the setting operation.

    摘要翻译: 示出了滑动夹持机构,用于在外围井管道的内孔内支撑一串圆柱形导管。 锥形保持环接合多个浮动锥形段,其在圆柱形管道的外侧上限定间隔开的纵向槽。 在圆柱形管道上以间隔的方式携带垂直移动的滑动件,并且具有适于接合形成在槽中的配合轮廓的侧边缘。 槽形成用于滑块的导轨,用于在接合外接导管的设定位置和未设定位置之间向上和向外移动滑动件。 滑块和锥形段中的选定的锥形部分是锥形的,用于对滑块进行索引,并且在设置操作期间滑块与锥体接触时便于在槽内对准。

    Seal and slip assembly for expandable downhole tools
    22.
    发明申请
    Seal and slip assembly for expandable downhole tools 有权
    可扩展井下工具的密封和滑动组件

    公开(公告)号:US20070267824A1

    公开(公告)日:2007-11-22

    申请号:US11437069

    申请日:2006-05-19

    IPC分类号: F16L5/02

    摘要: A sealing and gripping element for an expandable downhole tool features a ring supporting a sealing material with radially extending rings into the sealing material during run in. Expansion of the underlying ring brings the sealing material into contact with the surrounding tubular. It also forces the radially extending rings through the sealing material and into contact with the surrounding tubular. As a result the tips of the extending rings are blunted to create metal to metal seals on the surrounding tubular. Hardened inserts are also located within the sealing material for run in. Upon expansion of the underlying base ring, the inserts break through the sealing material and penetrate the surrounding tubular to enhance grip when high differential pressures are encountered.

    摘要翻译: 用于可膨胀井下工具的密封和夹持元件具有支撑密封材料的环,所述密封材料在运行期间具有径向延伸的环进入密封材料。下面的环的膨胀使密封材料与周围的管连接。 它还迫使径向延伸的环穿过密封材料并与周围的管状物接触。 结果,延伸环的尖端被钝化以在周围的管上形成金属到金属密封。 硬化插入件也位于用于进入的密封材料内。当底层基础环膨胀时,插入件突破密封材料并穿透周围的管状物,以在遇到高压差时增强握力。

    Method and apparatus for one trip tubular expansion
    23.
    发明授权
    Method and apparatus for one trip tubular expansion 有权
    一次行程管式膨胀的方法和装置

    公开(公告)号:US07156182B2

    公开(公告)日:2007-01-02

    申请号:US10382390

    申请日:2003-03-06

    IPC分类号: E21B43/10 E21B23/00

    摘要: A one trip system for expanding a tubular that is solid or perforated or a screen comprises a downhole assembly that features a hydraulic anchor that can be set, released and repositioned to repeat the process. The anchor is small enough to go through the tubular or screen after initial expansion. The anchor's maximum extension is designed to avoid overstressing the already expanded tubular or screen. An expansion tool is hydraulically driven with the initial portion of the stroke delivering an enhanced force. The expansion tool initially supports the tubular or liner but subsequently releases during the first stroke, after the tubular or screen is fully supported.

    摘要翻译: 用于膨胀固体或穿孔的管状物或筛网的单行程系统包括井下组件,其特征在于可以设置,释放和重新定位以重复该过程的液压锚杆。 初始膨胀后,锚杆足够小以穿过管状或屏幕。 锚杆的最大伸长距离设计用于避免已经膨胀的管状或屏幕过度应力。 膨胀工具由液压驱动,初始部分的行程提供增强的力。 膨胀工具最初支撑管状或衬管,但随后在管状或筛网被完全支撑后在第一次冲程期间释放。

    Compliant swage
    24.
    发明授权
    Compliant swage 有权
    符合标准

    公开(公告)号:US07128146B2

    公开(公告)日:2006-10-31

    申请号:US10773010

    申请日:2004-02-05

    IPC分类号: E21B23/00 E21B43/10

    CPC分类号: E21B43/105

    摘要: A compliant swage has the ability to change shape to allow clearance of an obstruction while permitting expansion to go on in other areas removed from the obstruction. A series of segments move with respect to each other longitudinally to change overall size. The segments have an additional degree of freedom to change from a round profile of varying diameter to an oblong, elliptical, or an irregular shape so as to compensate in the portion that encounters an obstruction to let the swage pass while at the same time permitting the intended maximum expansion in other portions where conditions permit such expansion.

    摘要翻译: 合格的锻压具有改变形状以允许阻塞物清除的能力,同时允许在从障碍物移除的其它区域中扩张。 一系列片段相对于彼此纵向移动以改变整体尺寸。 这些片段具有从不同直径的圆形轮廓变为长方形,椭圆形或不规则形状的附加自由度,以便在遇到障碍物的部分中补偿,以使模具通过,同时允许 在条件允许这种扩展的其他部分中预期的最大膨胀。

    PBR with TEC bypass and wet disconnect/connect feature
    26.
    发明授权
    PBR with TEC bypass and wet disconnect/connect feature 有权
    PBR带TEC旁路和湿式断开/连接功能

    公开(公告)号:US06776636B1

    公开(公告)日:2004-08-17

    申请号:US09707168

    申请日:2000-11-06

    IPC分类号: H01R460

    CPC分类号: E21B17/028 H01R13/523

    摘要: A wet connect/disconnect arrangement is disclosed for a downhole system that allows installation of various tools and/or a string and subsequent electrical connection to the downhole system in a wet environment. Several embodiments are disclosed, all of which produce a clean, reliable connection. Exemplary embodiments include an upper section being mechanically and electrically joined to an intermediate section with electrical connectors for being joined at a lower section. The intermediate section further has auxiliary connectors that may be protected by a cover and remain unmated in a first connected application being therefore available for future use. The upper section may be removed leaving the intermediate section in place whereby the unmated connectors are available to rejoin a new upper section. Different types of connectors are also disclosed.

    摘要翻译: 公开了用于井下系统的湿式连接/断开装置,其允许在潮湿的环境中安装各种工具和/或串以及随后的电气连接到井下系统。 公开了几个实施例,所有这些实施例都产生干净,可靠的连接。 示例性实施例包括机械地和电连接到具有用于在下部连接的电连接器的中间部分的上部分。 中间部分还具有辅助连接器,其可由盖子保护并且在第一连接的应用中保持未配合,因此可供将来使用。 可以移除上部,留下中间部分,从而使未配合的连接器可用于重新加入新的上部。 还公开了不同类型的连接器。

    Combined sealing and gripping unit for retrievable packers

    公开(公告)号:US06619391B2

    公开(公告)日:2003-09-16

    申请号:US10210305

    申请日:2002-08-01

    IPC分类号: E21B2301

    CPC分类号: E21B23/01 E21B33/1293

    摘要: A wellbore packer and slip combination for production tubing and the like comprises a plurality of slip elements that are caged together around the periphery of a cylindrical mandrel. An axially displaced actuator simultaneously engages all of the elements to ramp one end of all elements against a casing wall. After the one end of the slip and packer unit is set, further displacement of the actuator expands the other end of the elements against the casing wall. The packer and slip assembly may be retracted and recovered by a simultaneous lift and rotation of the tool string.

    Straight bore metal-to-metal wellbore seal apparatus and method of
sealing in a wellbore
    28.
    发明授权
    Straight bore metal-to-metal wellbore seal apparatus and method of sealing in a wellbore 失效
    直孔金属对金属井眼密封装置和密封在井筒中的方法

    公开(公告)号:US5333692A

    公开(公告)日:1994-08-02

    申请号:US827411

    申请日:1992-01-29

    IPC分类号: E21B33/12 E21B33/128

    摘要: A seal apparatus is provided for use in a subterranean wellbore having a wellbore tubular disposed therein. The wellbore tubular defines a wellbore surface. The seal includes a number of components which cooperate together. A conveyance tubular is provided, which is positionable within the subterranean wellbore at a selected location relative to the wellbore surface. 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.

    摘要翻译: 提供密封装置用于在其中设置有井眼管的地下井眼中。 井眼管形成井筒表面。 密封件包括多个配合在一起的部件。 提供了一种输送管,其可在相对于井眼表面的选定位置处定位在地下井眼内。 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。

    Dual seal packer for corrosive environments
    29.
    发明授权
    Dual seal packer for corrosive environments 失效
    双重密封封隔器,用于腐蚀性环境

    公开(公告)号:US4903777A

    公开(公告)日:1990-02-27

    申请号:US90431

    申请日:1987-08-26

    IPC分类号: E21B33/129

    CPC分类号: E21B33/1291

    摘要: A dual seal packer is shown having a central mandrel which carries upper and lower seal assemblies which straddle an outer cage assembly. Rocker type slips are carried in the cage assembly and are set by a single expander ring. Special support surfaces on the slips cooperate with mating support surfaces on the cage assembly to provide support for the slips under tensive and compressive loading. The slips and upper and lower seal assemblies are set in a single step operation by rotating the mandrel to the right while holding tension on the well string from the surface.

    摘要翻译: 双密封封隔器被示出具有中心心轴,其承载跨越外部笼组件的上部和下部密封组件。 摇摆式滑轨在笼式组件中承载,并由单个扩展器环设置。 滑盖上的特殊支撑表面与保持架组件上的配合支撑表面配合,以在沉重和压缩载荷下为滑块提供支撑。 滑块和上下密封组件通过将心轴向右旋转同时从表面保持井筒上的张力而设置在单步操作中。

    Locking production seal assembly
    30.
    发明授权
    Locking production seal assembly 失效
    锁定生产密封组件

    公开(公告)号:US4657077A

    公开(公告)日:1987-04-14

    申请号:US809615

    申请日:1985-12-16

    IPC分类号: E21B23/02

    CPC分类号: E21B23/02

    摘要: A locking production seal assembly is shown for sealing a well tubing string within the bore of a surrounding well conduit which has been provided with an internal recess. The seal assembly includes a sliding mandrel which is made up in the well tubing string and an outer sleeve which is carried about the mandrel. The outer sleeve has an external seal for sealing with the interior of the surrounding conduit and an internal seal for sealing with the sliding mandrel. A setting sleeve carried between the mandrel and outer sleeve carries a set of setting dogs for engaging the surrounding conduit and a set of locking dogs for locking the setting sleeve to the surrounding sleeve once the assembly is set. The load carrying setting dogs are separated from the mandrel exterior by the setting sleeve to prevent damage to the mandrel exterior.

    摘要翻译: 示出了锁定生产密封组件,用于将井管柱密封在已经设置有内部凹部的周围井道管道的孔内。 密封组件包括在井管柱中构成的滑动心轴和围绕心轴承载的外套筒。 外套筒具有用于与周围导管的内部密封的外部密封件和用于与滑动心轴密封的内部密封件。 承载在心轴和外套筒之间的设置套筒携带一组用于接合周围管道的设置卡爪和一组锁定卡爪,用于在设置组件时将安装套筒锁定到周围的套筒。 负载设置狗通过设置套筒与心轴外部分离,以防止心轴外部损坏。