WELL COLLISION AVOIDANCE USING DISTRIBUTED ACOUSTIC SENSING
    11.
    发明申请
    WELL COLLISION AVOIDANCE USING DISTRIBUTED ACOUSTIC SENSING 审中-公开
    使用分布式声学感测的良好碰撞避免

    公开(公告)号:US20100200743A1

    公开(公告)日:2010-08-12

    申请号:US12579939

    申请日:2009-10-15

    IPC分类号: G01V8/00 E21B47/02

    摘要: A method for obtaining location information about a well as it is being drilled through a subsurface, comprises: providing at least one fiber optic cable deployed in a borehole within acoustic range of the well, the proximal end of the cable being coupled to a light source and a photodetector, the fiber optic cable being acoustically coupled to the subsurface formation so as to allow acoustic signals in the subsurface to affect the physical status of the cable, providing an acoustic source in the well, transmitting at least one light pulse into the cable, receiving at the photodetector a first light signal indicative of the physical status of at least one first section of the cable. The first section is selected so that the first light signal provides information about the position of the acoustic source, and outputting at least the information to a display.

    摘要翻译: 一种用于在通过地下钻孔时获得关于井的位置信息的方法,包括:提供在所述井的声学范围内部署在钻孔中的至少一根光缆,所述缆索的近端与光源 以及光电检测器,所述光纤电缆声耦合到所述地下地层,以便允许所述地下的声信号影响所述电缆的物理状态,在所述井中提供声源,将至少一个光脉冲传输到所述电缆 在所述光电检测器处接收指示所述电缆的至少一个第一部分的物理状态的第一光信号。 选择第一部分,使得第一光信号提供关于声源的位置的信息,并且至少将该信息输出到显示器。

    Method for monitoring fluid properties
    12.
    发明授权
    Method for monitoring fluid properties 有权
    监测流体性质的方法

    公开(公告)号:US07409858B2

    公开(公告)日:2008-08-12

    申请号:US11561806

    申请日:2006-11-20

    IPC分类号: E21B47/10

    摘要: A method for monitoring fluid properties with a distributed sensor in a wellbore having an inner surface, a top and a bottom comprising causing the distributed sensor to assume a helical shape, pulling the distributed sensor towards the bottom of the wellbore, while retaining the helical shape of the distributed sensor, feeding the distributed sensor into the wellbore so that the distributed sensor is in substantially continuous contact with the inner surface, and allowing the distributed sensor to become at least partially supported by friction at the inner surface.

    摘要翻译: 一种利用分布式传感器在具有内表面,顶部和底部的分布式传感器中监测流体特性的方法,包括使分布式传感器呈现螺旋形状,将分布式传感器朝向井筒的底部拉动,同时保持螺旋形状 的分布式传感器,将分布式传感器馈送到井眼中,使得分布式传感器与内表面基本上连续地接触,并且允许分布式传感器至少部分地由内表面的摩擦力支撑。