Push-on coupling apparatus for tubular well completion structures
    2.
    发明授权
    Push-on coupling apparatus for tubular well completion structures 失效
    用于管状井完井结构的推压联接装置

    公开(公告)号:US5415441A

    公开(公告)日:1995-05-16

    申请号:US204103

    申请日:1994-02-28

    摘要: Using a specially designed push-on coupling structure the facing end portions of two tubular well completion structures, such as a length of coil tubing and a tubular coupling member, are fixedly and sealing connected to one another simply by pushing one of the end portions into the other end portions. The coupling structure includes an O-ring seal member carried by one of the end portions for creating a fluid tight seal between the telescoped end portions; a radial projection carried by one of the end portions and receivable in a side wall slot in the other end portion for preventing appreciable relative rotation between the telescoped end portions; and an axially split locking ring member coaxially threaded onto one of the end portions and having a gripping thread section disposed thereon and operative to engage the other end portion in a manner permitting the two end portions to be initially telescoped with one another but precluding their subsequent axial separation. This push-on coupling apparatus is representatively illustrated as being incorporated in a coil tubing splice member, on opposite ends of a tubular well completion device such as a landing nipple, and on a two piece push-together coupling structure used to operatively connect two tubular sand screen sections.

    摘要翻译: 使用特别设计的推压联接结构,两个管状井完井结构(例如一段长度的线圈管和管状联接构件)的相对的端部通过将其中一个端部推入而彼此固定和密封 另一端部。 联接结构包括由一个端部承载的O形密封件,用于在伸缩端部之间产生流体密封; 由所述端部中的一个承载的径向突起,并可接收在所述另一端部的侧壁槽中,用于防止所述伸缩端部之间的相对转动; 以及轴向分离的锁定环构件,其同轴地螺纹连接到一个端部上并且具有设置在其上的夹紧螺纹部分,并且以可允许两个端部彼此首先伸缩的方式操作以接合另一端部,但排除其随后的 轴向分离。 代表性地示出了这种推入式联接装置,其被结合在线圈管接头构件中,在诸如着陆接头之类的管状完井装置的相对端上,以及用于可操作地连接两个管状件 沙屏部分。

    Non-rotatable, straight pull shearable packer plug
    3.
    发明授权
    Non-rotatable, straight pull shearable packer plug 失效
    不可旋转,直拉可剪切封隔器插头

    公开(公告)号:US5318117A

    公开(公告)日:1994-06-07

    申请号:US994696

    申请日:1992-12-22

    IPC分类号: E21B23/06 E21B33/12

    CPC分类号: E21B33/12 E21B23/06

    摘要: A two-way retrievable packer plug is installed in the production bore of a flow conductor by straight insertion, and is retrieved by a one trip straight pull operation. The plug assembly includes a core mandrel which is enclosed within a tubular latch mandrel on which an annular seal assembly is mounted for sealing engagement against the production bore of a flow conductor. A latch key is yieldably biased by a coil spring for interlocking engagement with a latch retainer lug carried on a landing receptacle attached to the flow conductor. The latch key is moveable from a radially extended position in which it is engageable against the latch retainer lug so that the latch key is blocked against axial displacement relative to the landing receptacle as the plug mandrel is inserted into or withdrawn out of the flow conductor. The latch key is moveable to a radially retracted position in which it is released from blocking engagement with the latch retainer lug to permit passage of the latch key relative to the lug as the core mandrel is fully inserted within or fully retracted from the flow conductor. The latch key is supported in the radially extended position by raised shoulder portions of the core mandrel. The core mandrel is intersected by an equalizing passage which is open during run-in and insertion. The equalizing passage is sealed automatically by a slideable isolation sleeve as the running tool is separated from the plug, and is opened automatically during retrieval of the plug.

    摘要翻译: 双向可回收封隔器插头通过直插式安装在流动导管的生产孔中,并通过一次拉直操作来取回。 插头组件包括芯心,其被封装在管状闩锁心轴内,安装有环形密封组件以密封与流动导体的生产孔密封接合。 闩锁钥匙可被螺旋弹簧屈服偏置,用于与附接到流动导体的着陆插座上承载的闩锁保持器凸耳互锁接合。 闩锁键可从径向延伸的位置移动,在该延伸位置中,闩锁键可与闩锁保持器突耳接合,使得当插头心轴插入或从流动导体中取出时,锁定键被阻止相对于着陆接收器的轴向位移。 闩锁键可移动到径向缩回位置,在该状态下,当芯轴心完全插入流动导体内或完全从流动导体缩回时,闩锁钥匙被释放以阻止与闩锁保持器突耳接合,以允许闩锁钥匙相对于突耳移动。 闩锁键通过芯心轴的凸起的肩部支撑在径向延伸的位置。 芯轴由平衡通道相交,在通入和插入过程中打开。 当运动工具与插头分离时,平衡通道由可滑动的隔离套筒自动密封,并在插头取出期间自动打开。

    Non-rotational versa-trieve packer
    4.
    发明授权
    Non-rotational versa-trieve packer 失效
    不可反转的trieve封隔器

    公开(公告)号:US5103902A

    公开(公告)日:1992-04-14

    申请号:US651728

    申请日:1991-02-07

    摘要: A retrievable packer includes a selectively releasable anti-rotation coupling lug for preventing premature setting of the packer. The lower wedge and packer mandrel are coupled together by the anti-rotation lug during running and setting operations. The anti-rotation lug is slidably received within an L-slot formed in the packer mandrel, and is selectively releasable to permit rotation of the service tool relative to the packer mandrel during retrieving operations. During run-in and retrieving operations, the anti-rotation lug is confined within a circumferentially extending portion of the L-slot, thereby limiting longitudinal travel of the packer mandrel relative to the lower wedge. The service tool can then set down on the packer for pushing the lower wedge out from under the anchor slip. The anti-rotation lug also provides a rotational lock between the slip carrier and the lower wedge, thereby preventing rotation of the slip carrier and anchor slips relative to the lower packer components during running and setting operations.

    摘要翻译: 可回收封隔器包括用于防止封隔器过早设置的可选择性释放的防旋转联接凸耳。 在运行和设置操作期间,下楔形物和封隔器心轴通过防旋转凸耳联接在一起。 防旋转凸耳可滑动地容纳在形成在封隔器心轴中的L形狭槽内,并且可选择性地释放以允许在检索操作期间相对于打包器心轴旋转维修工具。 在进入和取回操作期间,防旋转凸耳限制在L形槽的周向延伸部分内,从而限制封隔器心轴相对于下楔形件的纵向行进。 然后,服务工具可以在封隔器上放下,以将下部楔块从锚杆下方推出。 防转动凸耳还在滑动承载件和下部楔块之间提供旋转锁定,从而防止在运行和设置操作期间相对于下部封隔器部件的滑动滑架和锚定滑块的旋转。

    Hydraulic setting sleeve
    5.
    发明授权
    Hydraulic setting sleeve 失效
    液压套筒

    公开(公告)号:US5375662A

    公开(公告)日:1994-12-27

    申请号:US86104

    申请日:1993-06-30

    摘要: A hydraulic setting apparatus has an isolation sleeve which covers setting ports and prevents entry of hydraulic setting fluid into a pressure settable tool such as an inflatable packer or a hydraulic packer. The mandrel of the setting tool is mechanically coupled to the mandrel of the pressure settable completion tool by a guide tube which provides an enlarged counterbore chamber. The guide tube is intersected by radial setting ports which permit entry of the pressurized fluid for pressurizing a hydraulic pressure chamber in the completion tool. A shiftable isolation sleeve opens and closes the setting ports. A radially outwardly biased split C-ring is engaged against the bore of the isolation sleeve. Longitudinal travel of the split C-ring is limited by a shear collar which is releasably pinned to the isolation sleeve.

    摘要翻译: 液压设定装置具有隔离套筒,其覆盖设置端口并防止液压设定流体进入诸如充气封隔器或液压封隔器之类的可调压工具。 设置工具的心轴通过提供扩大的沉孔的引导管机械联接到可压力完成工具的心轴。 引导管与径向设定端口相交,允许加压流体进入加压工具中的液压室。 可移动隔离套管打开和关闭设置端口。 径向向外偏压的分离C形环与隔离套筒的孔接合。 裂缝C形环的纵向移动受到可释放地固定到隔离套筒的剪切环的限制。

    Sand control screen having increased erosion and collapse resistance
    10.
    发明授权
    Sand control screen having increased erosion and collapse resistance 失效
    防砂筛网具有增加的抗侵蚀和抗塌陷性能

    公开(公告)号:US5829522A

    公开(公告)日:1998-11-03

    申请号:US683270

    申请日:1996-07-18

    IPC分类号: E21B43/08 E03B3/18

    CPC分类号: E21B43/082

    摘要: A screen provides increased erosion resistance and collapse resistance without uneconomical overcompensation and without requiring an increase in the screen's outer diameter. In a preferred embodiment, a sand control screen has a support material radially between a tubular base pipe and a filtering portion. The support material radially outwardly supports the filtering portion to help prevent radially inward collapse of the filtering portion. In another preferred embodiment, a screen has a coating applied to a filtering portion's exterior surface. The coating may alternatively or combinatively provide erosion resistance, radially inwardly retain a support material, and selectively vary flow through the filtering portion.

    摘要翻译: 屏幕提供增加的抗侵蚀性和抗倒塌性,而不经历不经济的过度补偿,并且不需要增加筛网的外径。 在优选实施例中,防砂筛管在管状基管和过滤部分之间径向地具有支撑材料。 支撑材料径向向外支撑过滤部分以帮助防止过滤部分的径向向内折叠。 在另一个优选实施例中,屏幕具有涂覆在过滤部分的外表面上的涂层。 替代地或组合地提供耐腐蚀性的涂层,径向向内保持支撑材料,并且选择性地改变通过过滤部分的流动。