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    Downhole signal communication and measurement through a metal tubular
    1.
    发明公开
    Downhole signal communication and measurement through a metal tubular 有权
    Bohrlochsignalübertragungund Erfassung durch Metallrohre

    公开(公告)号：EP1158138A2

    公开(公告)日：2001-11-28

    申请号：EP01201810.7

    申请日：2001-05-15

    申请人： SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER TECHNOLOGY B.V. ,  Schlumberger Holdings Limited

    发明人： Clark, Brian ,  Hunka, John ,  Frey, Mark T. ,  Smith, David L. ,  Ramaswamy, Dhananjay ,  Collins, Anthony L. ,  Bonner, Stephan D.

    IPC分类号： E21B47/12

    CPC分类号： G01V3/30 ,  E21B47/011 ,  E21B47/122 ,  G01V11/002 ,  Y10T137/0396 ,  Y10T137/0452

    摘要： Systems and methods for downhole communication and measurement utilizing an improved metallic tubular (30) having an elongated body with tubular walls and a central bore (32) adapted to receive a run-in tool (10). The tubular including slotted stations to provide through-tubular signal transmission and/or reception. Hydraulic isolation between the interior and exterior of the tubular is provided by pressure barrier means at the slotted stations. Sensors and/or sources are mounted on the run-in tool, which is adapted for transmission through a drill string to engage within the tubular in alignment with the slotted stations. A run-in tool configuration includes a modulator for real-time wireless communication with the surface and/or remote downhole tools. A tubular and run-in tool configuration also includes inductive couplers (122) for wireless signal data transfer. A method for measuring a formation characteristic utilizing a run-in tool adapted with an interchangeable end segment for multi-mode downhole transport. Methods for sealing an opening (38) on the surface of a tubular having an elongated body with tubular walls and a central bore.

    摘要翻译： 利用改进的金属管（30）的井下连通和测量的系统和方法，所述金属管（30）具有带有管状壁的细长主体和适合于接纳进刀工具（10）的中心孔（32）。 管状件包括开槽台，以提供贯穿管状的信号传输和/或接收。 在管状内部和外部之间的液压隔离由开槽站处的压力阻挡装置提供。 传感器和/或源安装在导入工具上，该工具适于通过钻柱传输，以与管线站在狭槽位置对准。 一种经济的工具配置包括一个用于与表面和/或远程井下工具进行实时无线通信的调制器。 管状和磨合工具配置还包括用于无线信号数据传送的电感耦合器（122）。 一种利用适用于多模式井下输送的可互换端段适用的导入工具测量地层特性的方法。 用于密封具有带有管状壁的细长主体的管状物的表面上的开口（38）和中心孔的方法。