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热词
    • 4. 发明授权
    • Formation isolation valve
    • 形成隔离阀
    • US07980316B2
    • 2011-07-19
    • US12108186
    • 2008-04-23
    • Brad SwensonArin Basmajian
    • Brad SwensonArin Basmajian
    • E21B34/06E21B43/00
    • E21B34/14E21B23/02
    • A valve includes a housing, a valve element that is located in the housing, an operator, a locking device and an interference device. The housing includes an interior surface that has a profile. The operator may be configured to transition the valve element between open and closed states. The locking device is adapted to be selectively extended into the profile. The interference device may be adapted to be selectively extended radially inside the locking device to retain the locking device in the profile, thereby locking the valve element in the open or closed state.
    • 阀包括壳体,位于壳体中的阀元件,操作者,锁定装置和干涉装置。 壳体包括具有轮廓的内表面。 操作者可以构造成在打开和关闭状态之间转换阀元件。 锁定装置适于选择性地延伸到轮廓中。 干涉装置可以适于选择性地在锁定装置内径向延伸,以将锁定装置保持在轮廓中,从而将阀元件锁定在打开或关闭状态。