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    • 59. 发明申请
    • ISOLATED ELECTRICAL CONNECTION IN A DRILL STRING
    • 钻井中的隔离电气连接
    • WO2004053284A3
    • 2005-03-03
    • PCT/US0338253
    • 2003-12-01
    • MERLIN TECHNOLOGY INCCHAU ALBERT W
    • CHAU ALBERT W
    • E21B20060101E21B7/04E21B17/00E21B17/02E21B17/20E21B23/00E21B47/022E21B47/024H01R13/533
    • E21B17/028E21B7/046E21B17/003E21B47/02224E21B47/024H01R13/533
    • A system includes a drill string made up of a plurality of connectable pipe sections (28a & 28b). An assembly (100) is provided for use with each pipe section (28) including contact arrangement (108) for forming an isolated electrical connection between attached pipe sections (28) at each end of each pipe section. An electrically conductive arrangement (112) is located in the innermost passage of each pipe section (28) and is in electrical communication with the contact arrangement (108) to extend there between in a way which provides an electrically conductive path that is arranged against the inner wall of the innermost passage of each pipe section in cooperation with the contact arrangement (108) to form an overall electrically isolated conductive path through the drill string. The electrically conductive arrangement (108) resiliently biases the electrically conductive path against the inner wall, which path may take the form of a helix.
    • 一种系统包括由多个可连接管段(28a和28b)组成的钻柱。 提供了一种组件(100),用于与每个管段(28)一起使用,包括接触装置(108),用于在每个管段的每个端部处的连接的管段(28)之间形成隔离的电连接。 导电布置(112)位于每个管段(28)的最内通道中,并且与接触装置(108)电连通以在其间延伸,以提供导电路径 每个管段的最内通道的内壁与接触装置(108)配合,以形成穿过钻柱的整个电隔离的导电路径。 导电布置(108)弹性地将导电路径偏置抵靠内壁,该路径可以采取螺旋形式。