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    • 6. 发明公开
    • WELL ACCESS LINE POSITIONING ASSEMBLY
    • ANORDNUNG ZUR POSITIONIERUNG EINER BOHRLOCHZUGANGSLEITUNG
    • EP2185786A2
    • 2010-05-19
    • EP08826438.7
    • 2008-07-15
    • Services Pétroliers SchlumbergerSchlumberger Holdings LimitedSchlumberger Technology B.V.PRAD Research And Development Limited
    • VARKEY, JosephFITZGERALD, PeterARDIC, Hifzi
    • E21B19/22
    • E21B19/22E21B47/0006
    • An assembly for positioning a well access line in a well. The assembly is located between a supply of well access line and a well, with the line running through the assembly and to the well. Multiple pulleys (101) are incorporated into the assembly about which a well access line such as a conventional wireline may be wrapped. The pulleys are biased to one another such that slack in the line may be stored at the assembly and drawn on in the event of line tension spiking up to a predetermined~amount. As such, tension in the line may be kept to a minimum so as to avoid damage to the line during a well access operation. Furthermore, should the tension in the line fail to come back down to below the predetermined amount, the well access operation may be halted in an automated manner. Halting may proceed while continuing to allow take-up of the slack in the line until completed halting of the operation is achieved.
    • 用于将井接入线定位在井中的组件。 组件位于井口供水管线和井口之间,管线穿过组件和井。 多个滑轮被并入到组件中,诸如常规电缆的井接入线可围绕该组滑动。 滑轮彼此偏置,使得线路中的松弛可以被存储在组件处,并且在线张力尖峰达到预定量的情况下被拉开。 因此,线路中的张力可以保持最小,以便在井接入操作期间避免对线路的损坏。 此外,如果线路中的张力不能回到低于预定量,则可以以自动的方式停止井的操作。 停止可以在继续允许收回线路中的松弛的同时进行,直到完成停止该操作。