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    • 10. 发明授权
    • Method and apparatus for plugging wells
    • 堵塞井的方法和装置
    • US06454001B1
    • 2002-09-24
    • US09569652
    • 2000-05-12
    • Tommy D. ThompsonHorton C. BallewJames F. HeathmanDavid L. Thorp
    • Tommy D. ThompsonHorton C. BallewJames F. HeathmanDavid L. Thorp
    • E21B33134
    • E21B33/136
    • A method and apparatus for plugging a well. The apparatus includes a well barrier which may be connected to a pipe string and lowered into a well to a selected plug location. The barrier is held in place by the pipe string at the selected plug location. The well barrier will engage the well at the selected plug location. A plugging fluid is displaced through the pipe string and is communicated into the well above the barrier. The well barrier will catch the plugging fluid. After the plugging fluid gels sufficiently to support itself in the well, the pipe string which was utilized to lower the well barrier can be disconnected from the well barrier and removed from the well after the plugging fluid has been allowed to set to a sufficient gel strength. The well barrier consists of a support pipe connected to the pipe string, and a fluid barrier connected thereto. The fluid barrier comprises a webbing disposed about the support pipe and a plurality of support members hingedly connected to the support pipe which allows the support members to rotate outwardly to engage the well at the selected plug location.
    • 一种堵塞井的方法和装置。 该装置包括井壁,其可以连接到管柱并且下降到井中至选定的插塞位置。 屏障通过所选插头位置处的管柱固定在适当的位置。 井障将在选定的插头位置进入井。 堵塞流体通过管柱移动并且被传送到屏障上方的井中。 井障将堵塞堵塞液。 在堵塞流体充分固化以将其自身固定在井中之后,用于降低井壁的管柱可以在堵塞流体被允许设置到足够的凝胶强度之后与井壁断开并从井中移除 。 井障由连接到管柱的支撑管和与其连接的流体屏障组成。 流体屏障包括布置在支撑管周围的织带和铰接地连接到支撑管的多个支撑构件,其允许支撑构件向外旋转以在所选择的插塞位置处接合孔。