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    • 7. 发明申请
    • CONTROLLED BREAKING OF CABLES IN A WELL CASING
    • 在一个良好的壳体中控制电缆断开
    • WO00065194A1
    • 2000-11-02
    • PCT/NO2000/000133
    • 2000-04-18
    • E21B29/04
    • E21B29/04Y10T408/29Y10T408/858953Y10T408/85896
    • A pipe string in an oil well has a cable (2) slidingly attached along it. It may be necessary to break the pipe string. Apparatus is provided for controlling the position of a fracture in the cable, as it is desirable to break the cable at about the same point. The apparatus comprises a pocket (1) attached to the cable and having a passage through which the cable passes, and upper and lower nipples (5 and 6) attached to the cable in the pocket. The lower face (5') of the nipple (5) is skewed relative to the lower internal face (3') of the pocket and the facing faces (5", 6') of the two nipples are skewed relative to each other, so bending and kinking the cable when tension is applied. The cable therefore breaks at the bend or kink. The pipe string includes a plurality of such apparatuses located at spaced points along its length.
    • 油井中的管柱具有沿其滑动地连接的电缆(2)。 可能有必要打破管柱。 提供用于控制电缆中的断裂位置的装置,因为期望在大约相同的点处断开电缆。 该设备包括附接到电缆并且具有电缆通过的通道的口袋(1),以及附接到口袋中的电缆的上和下接头(5和6)。 乳头(5)的下表面(5')相对于口袋的下内表面(3')倾斜,并且两个乳头的面对面(5“,6')相对于彼此倾斜, 因此当施加张力时弯曲和扭结电缆,因此电缆因弯曲或扭结而断裂,管柱包括位于沿其长度的间隔点处的多个这样的装置。