Bidirectional disappearing plug
    62.
    发明授权
    Bidirectional disappearing plug 失效
    双向消失插头

    公开(公告)号:US6026903A

    公开(公告)日:2000-02-22

    申请号:US42094

    申请日:1998-03-13

    摘要: A bidirectional disappearing plug member and plug assembly is capable of blocking pressurized fluid flow from opposing axial directions in a flowbore. In a preferred embodiment, the plug member, which blocks flow through the flowbore, may be readily and at least partially dissolved through the application of at least one pressurization and depressurization within a tubing string above the plug assembly. Construction of the plug assembly permits the plug member to be conveniently emplaced in a fluid-filled wellbore by permitting fluid flow around the plug member during the emplacement process. The plug member may then be secured within the plug assembly to block fluid flow from either axial direction. Operation of a plug rupture sleeve or mandrel, for at least partially dissolving the plug member, may be controlled by a ratchet assembly or linear indexing apparatus requiring multiple pressurizations and depressurizations before the plug member is exposed to wellbore fluids and thereby at least partially dissolved.

    摘要翻译: 双向消失的塞子构件和塞子组件能够在流动孔中阻挡来自相对轴向的加压流体流动。 在一个优选实施例中,堵塞通过流孔的流动的塞子构件可以容易地并且至少部分地通过在塞子组件上方的管柱中施加至少一个加压和减压来溶解。 插塞组件的构造允许插塞构件通过在插入过程期间允许流体在塞构件周围流动而方便地放置在流体填充的井眼中。 插塞构件然后可以固定在插塞组件内以阻止从任一轴向方向流动的流体。 用于至少部分地溶解塞子构件的塞子破裂套筒或心轴的操作可以由塞子组件或线性分度装置控制,该棘轮组件或线性分度装置在塞构件暴露于井眼流体之前并由此至少部分地溶解时需要多次加压和减压。

    Apparatus and methods for sealing a wellbore junction
    63.
    发明授权
    Apparatus and methods for sealing a wellbore junction 失效
    用于密封井眼结的装置和方法

    公开(公告)号:US6009949A

    公开(公告)日:2000-01-04

    申请号:US014150

    申请日:1998-01-27

    IPC分类号: E21B7/08 E21B41/00

    CPC分类号: E21B41/0042

    摘要: A sealed wellbore junction is conveniently and efficiently created in a subterranean well. In one described embodiment, a first assembly including a deflection device is positioned in the well adjacent a junction of parent and lateral wellbores. A second assembly is then sealingly engaged with the first assembly, thereby sealing the junction, and providing fluid communication between the lateral wellbore and upper and lower portions of the parent wellbore. Sealing engagement between the first and second assemblies may be provided by a variety of sealing members, or by metal-to-metal contact between the assemblies.

    摘要翻译: 在地下井中方便有效地建立密封的井眼结。 在一个所描述的实施例中,包括偏转装置的第一组件位于井和邻近的井筒的连接处的井中。 然后将第二组件与第一组件密封地接合,从而密封接合部,并且在侧井筒与母井筒的上部和下部之间提供流体连通。 第一组件和第二组件之间的密封接合可由各种密封构件提供,或通过组件之间的金属 - 金属接触来提供。

    Temporary plug system
    64.
    发明授权
    Temporary plug system 失效
    临时插头系统

    公开(公告)号:US5685372A

    公开(公告)日:1997-11-11

    申请号:US561754

    申请日:1995-11-22

    申请人: John C. Gano

    发明人: John C. Gano

    摘要: A method and apparatus for establishing and substantially destroying a fluid-type plug which is substantially dissolvable in fluid. A means for selectively opening a fluid port to the plug member is described which causes dissolution of the plug to occur. The plug member is maintained within a plug housing which also contains the fluid port. The plug housing is received within an annular sleeve which serves to seal the plug housing port against fluid intrusion into the plug housing port. The sleeve also contains an aperture which will become generally aligned with the plug housing port as the plug housing is axially separated from the annular sleeve. Axial separation of the plug housing and sleeve is accomplished by selectively pressurizing and depressurizing the flowbore containing the plug assembly to remove support for the plug housing.

    摘要翻译: 一种用于建立并基本上破坏基本可溶于流体的流体型塞的方法和装置。 描述了一种用于选择性地将流体端口打开到插塞构件的装置,其导致插头发生溶解。 插头构件保持在还包含流体端口的插头壳体内。 插头壳体容纳在环形套筒内,该套筒用于密封插头外壳端口,以防止流体侵入插头外壳端口。 套筒还包含孔,当孔塞与环形套筒轴向分离时,该孔孔将与插头壳体端口大致对齐。 插塞壳体和套管的轴向分离通过选择性地加压和减压含有插塞组件的流动孔来去除对插头壳体的支撑来实现。

    Methods and systems for subterranean multilateral well drilling and
completion
    65.
    发明授权
    Methods and systems for subterranean multilateral well drilling and completion 失效
    地下多孔钻井和完井的方法和系统

    公开(公告)号:US5564503A

    公开(公告)日:1996-10-15

    申请号:US296941

    申请日:1994-08-26

    摘要: Improved methods and systems for creating a multilateral well and improved multilateral well structures. In one aspect of the present invention, the method comprises the steps of: (1) setting a diverter at a prescribed position and a prescribed orientation in a main well flow conductor located within a main wellbore, (2) boring through a sidewall of the main well flow conductor and into a material surrounding the main well flow conductor, the boring creating a window having a particular shape in the sidewall, the orientation of the diverter determining a lateral position of the window in the main well flow conductor, a lateral wellbore thereby being formed in the material and extending from the main wellbore, (3) lining the lateral wellbore with a liner, the liner having an interface end, the interface end adapted to contact a periphery of the window in the sidewall and (4) cementing the liner in place within the lateral wellbore, the step of cementing creating a pressure-bearing seal between the periphery of the window and the interface end of the liner. The method allows multiple lateral wellbores to be joined to the main wellbore and provides for connectivity among main and lateral wellbores, pressure-bearing sealing of joints to allow selective isolation of one or more wellbores or portions thereof and subsequent wellbore access for rework or other purposes.

    摘要翻译: 改进创造多边井和改善多边井结构的方法和制度。 在本发明的一个方面,所述方法包括以下步骤:(1)在位于主井筒内的主井流体导体中的规定位置和规定方向设置分流器,(2)通过 主井流导体和围绕主井流导体的材料,钻孔产生在侧壁中具有特定形状的窗口,转向器的取向确定窗口在主井流导体中的横向位置,侧井筒 由此形成在材料中并从主井筒延伸,(3)用衬垫衬在侧井筒上,衬垫具有界面端,接口端适于接触侧壁中窗口的周边,(4)固井 衬套在侧井筒内的适当位置,固井步骤在窗口周边和衬套的界面端之间产生承压密封。 该方法允许多个侧向井筒连接到主井眼并且提供主井和侧井筒之间的连通性,关节的承压密封,以允许选择性隔离一个或多个井筒或其部分,以及随后的井眼进入返修或其它目的 。

    Well completion system with flapper control valve
    66.
    发明授权
    Well completion system with flapper control valve 失效
    完井系统带挡板控制阀

    公开(公告)号:US5564502A

    公开(公告)日:1996-10-15

    申请号:US381571

    申请日:1995-01-30

    摘要: A well control valve assembly prevents flow from or to completion segments further downhole from the well control valve assembly once the stimulation stimulation/shifter string has been removed from the production tubing string. The well control valve assembly features a shaped flapper plate which, when opened, conforms closely to the shape and size of the production tubing string's interior diameter. The flapper plate is biased toward a closed position by a compression spring arrangement that includes an arm which levers the plate upward toward a seating surface. The valve assembly's closure is mechanically induced and is not responsive to a sensed well condition.

    摘要翻译: 一旦井口控制阀组件一旦刺激刺激/换档杆已经从生产油管柱中移除,就能防止从井控制阀组件进一步井下流动或完井段。 井控阀组件具有形状的挡板,当打开时,其与生产油管柱的内径的形状和尺寸紧密地吻合。 挡板通过压缩弹簧装置偏压到关闭位置,压缩弹簧装置包括将板向上朝向座面施力的臂。 阀组件的闭合是机械感应的,并且不响应于感测井的状况。

    Well drilling and completion apparatus

    公开(公告)号:US4749046A

    公开(公告)日:1988-06-07

    申请号:US46635

    申请日:1987-05-07

    申请人: John C. Gano

    发明人: John C. Gano

    摘要: A drilling template for multiple wells has a dummy post on the template associate with each wellhead position and a wellhead connector is transferable between the dummy post and wellhead during completion and workover operations. A subsea wellhead is provided with a guide frame on which a dummy post is supported permitting the wellhead connector to be transferred between the dummy post and the wellhead. The wellhead includes a landing nipple and tubing hanger which permit the tubing hanger to tilt relative to the casing head without breaking the seal between the hanger and nipple. The wellhead connector is latched and released from the tubing head by reciprocation of a control sleeve and the connector is held in the unlatched position by a releasable lock. The wellhead connector includes a plug having a metal seal held in compression together with a resilient seal.

    Well flow control system and method
    68.
    发明授权
    Well flow control system and method 失效
    井流控制系统及方法

    公开(公告)号:US4077472A

    公开(公告)日:1978-03-07

    申请号:US708843

    申请日:1976-07-26

    申请人: John C. Gano

    发明人: John C. Gano

    摘要: A well system and method for completing petroleum oil and gas wells having special application to extreme environmental settings such as platform, sub sea, and floating vessel operations, and wells in frozen regions such as the Arctic, and the like. The invention is characterized by structure effectively defining a downhole wellhead including weight supporting apparatus in which the tubing hanger is supported and a pack-off with the casing for minimizing the effects of structural damage at the surface end of the well system. The system includes a tubing hanger releasably lockable in a casing at a downhole location and having sealing means for sealing the annulus within the casing around the hanger, a valve package lock releasably lockable in the tubing hanger, tubing strings connected with the valve package lock and extending upwardly therefrom, including tubing valves, a safety joint connected with the tubing strings above the valves, tubing strings connected with the safety joint extending upwardly to a tubing head at the wellhead, control fluid conduits connected from the tubing head through the safety joint to the valve package lock and tubing hanger for manipulation of the system during various phases of operation, and a composite handling string for running and pulling the well system including either of a slip joint or a hydraulic stop and orienting tool. The system permits a downhole wellhead to be functionally created below the mudline of offshore wells, Arctic wells, and the like.

    摘要翻译: 用于完成石油和天然气井的井系统和方法,其具有特殊应用于极端环境设置,例如平台,海底和浮船操作,以及诸如北极等冻结地区的井。 本发明的特征在于有效地限定井下井口的结构,其包括重量支撑装置,其中支撑管道悬挂器并且与壳体打包以最小化井系统的表面端处的结构损坏的影响。 该系统包括可拆卸地锁定在井下位置的壳体中的管状悬挂器,并且具有密封装置,用于密封衣架周围的环形空间,可拆卸地锁定在管道悬挂器中的阀组件锁,与阀组件锁连接的油管柱,以及 从其上向上延伸,包括管道阀,与阀上方的油管柱连接的安全接头,与安全接头连接的油管柱,向上延伸到井口处的油管头,控制通过安全接头连接到油管头的流体管道, 用于在各种操作阶段期间操作系统的阀组件锁定和管道悬挂器,以及用于运行和拉动包括滑动接头或液压停止和定向工具中的任一者的复合操纵杆。 该系统允许井下井口在离岸井,北极井等的泥线下方功能地产生。

    Jumper tube locking assembly and method
    69.
    发明授权
    Jumper tube locking assembly and method 有权
    跳线管锁组件及方法

    公开(公告)号:US09366115B2

    公开(公告)日:2016-06-14

    申请号:US13877451

    申请日:2012-06-11

    IPC分类号: E21B43/04 E21B17/02

    摘要: A jumper tube for use with a shunt tube assembly comprises a first tubular member configured to engage a first shunt tube, a second tubular member axially disposed within the first tubular member, and a locking member configured to prevent the second tubular member from axially displacing into the first tubular member. The second tubular member is configured to slidingly engage within the first tubular member, and the second tubular member is configured to engage a second shunt tube.

    摘要翻译: 用于分流管组件的跳线管包括构造成接合第一分流管的第一管状构件,以及轴向设置在第一管状构件内的第二管状构件,以及构造成防止第二管状构件轴向移位成 第一管状构件。 第二管状构件构造成滑动地接合在第一管状构件内,并且第二管状构件构造成接合第二分流管。

    SELF-RELEASING PLUG FOR USE IN A SUBTERRANEAN WELL
    70.
    发明申请
    SELF-RELEASING PLUG FOR USE IN A SUBTERRANEAN WELL 有权
    自我释放插头用于一个地下室

    公开(公告)号:US20120061088A1

    公开(公告)日:2012-03-15

    申请号:US12881296

    申请日:2010-09-14

    IPC分类号: E21B34/06

    CPC分类号: E21B34/08

    摘要: A flow control system for use in a subterranean well can include a flow chamber through which a fluid composition flows, and a plug which is released in response to an increase in a ratio of undesired fluid to desired fluid in the fluid composition. Another flow control system can include a flow chamber through which a fluid composition flows, a plug, and a structure which supports the plug, but which releases the plug in response to degrading of the structure by the fluid composition. Yet another flow control system can include a flow chamber through which a fluid composition flows, and a plug which is released in response to an increase in a velocity of the fluid composition in the flow chamber.

    摘要翻译: 用于地下井的流量控制系统可以包括流体组合物流过的流动室和响应于不期望的流体与流体组合物中所需流体的比例增加而释放的塞子。 另一个流量控制系统可以包括流体组合物流过的流动室,塞子和支撑塞子的结构,但是响应于由流体组合物降低结构而释放塞子。 另一个流量控制系统可以包括流体组合物流过的流动室和响应于流动室中的流体组合物的速度增加而释放的塞子。