Packing tool apparatus for sealing well bores
    1.
    发明授权
    Packing tool apparatus for sealing well bores 失效
    用于密封井眼的包装工具装置

    公开(公告)号:US4515213A

    公开(公告)日:1985-05-07

    申请号:US464787

    申请日:1983-02-09

    摘要: An improved packing tool (P1) for sealing spaces between the wall (10) of a wellbore and means (12) defining an elongate member (e.g. tubing) disposed longitudinally in the well bore including a sealing mechanism supportable peripherally about the elongate member and including at least one element (27) containing a shape memory alloy material which maintains a radially contracted condition at below a predetermined temperature--corresponding to the transition temperature of the shape memory alloy--to enable introduction of the sealing mechanism into the well bore and which responds to the temperature by transforming into a radially expanded condition to make sealing contact with the wall of the well bore, establishing a tight metal to metal seal therethrough.

    摘要翻译: 一种用于密封井眼的壁(10)之间的空间的改进的包装工具(P1)和限定纵向设置在所述井眼中的细长构件(例如管)的装置(12),所述细长构件(例如管)包括围绕所述细长构件周向支撑的密封机构, 包含形状记忆合金材料的至少一个元件(27),其将径向收缩状态保持在与形状记忆合金的转变温度相对应的预定温度以下,以使密封机构能够引入井眼并且响应 通过转变成径向膨胀状态以与井眼的壁密封接触,从而建立紧密的金属到金属密封件。

    Apparatus for sealing a well blowout
    2.
    发明授权
    Apparatus for sealing a well blowout 失效
    用于密封井喷的装置

    公开(公告)号:US4840346A

    公开(公告)日:1989-06-20

    申请号:US721957

    申请日:1985-04-11

    摘要: An apparatus T.sub.1 for sealing a well tubing 12 including a housing 20, 21, 22 which has a channel 68 communicating with the bore of tubing 12 and a chamber 43 connected with channel 68. A seal 62 is slidably mounted in the housing and is disposed in a retracted open condition in chamber 43 to enable fluid flow through channel 68. AN actuator 41, 42 also disposed in chamber 43, includes a shape memory alloy material which is responsive to the temperature thereof rising to a predetermined level corresponding to the transition temperature of the shape memory alloy for transforming in shape to extend the seal into an extended condition within channel 68, thereby blocking fluid flow therethrough.

    摘要翻译: 用于密封井管12的装置T1,其包括壳体20,21,22,其具有与管12的孔连通的通道68和与通道68连接的室43.密封件62可滑动地安装在壳体中并被布置 在室43中处于缩回打开状态以使得流体能够流过通道68.还设置在室43中的致动器41,42包括形状记忆合金材料,其响应于其升高到对应于转变温度的预定水平的温度 的形状记忆合金,用于在形状上转换以将密封件延伸到通道68内的延伸状态,从而阻止流体流过其中。

    Subsurface well safety valve and control system
    3.
    发明授权
    Subsurface well safety valve and control system 失效
    地下井安全阀和控制系统

    公开(公告)号:US4619320A

    公开(公告)日:1986-10-28

    申请号:US585424

    申请日:1984-03-02

    IPC分类号: E21B34/00 E21B34/06

    CPC分类号: E21B34/06 E21B2034/002

    摘要: Subsurface safety valve assembly (16) for oil wells comprising a valve element (57) and a temperature responsive operator comprising multiple coil springs (69, 70), made of shape memory material, operable in opposing directions for opening and closing the valve element and a ratchet locking mechanism comprising wickers (79) for locking the valve in its open position after removal of the heating which causes shape memory effect movement to such position.

    摘要翻译: 用于油井的地下安全阀组件(16)包括阀元件(57)和温度响应操作器,其包括由形状记忆材料制成的多个螺旋弹簧(69,70),可在相反的方向上操作以打开和关闭阀元件, 棘爪锁定机构包括用于在去除加热之后将阀门锁定在其打开位置的液压器(79),这导致形状记忆效应运动到该位置。