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    • 3. 发明申请
    • BOREHOLE MARKING DEVICES AND METHODS
    • 井眼标记装置和方法
    • WO2005091900A2
    • 2005-10-06
    • PCT/US2005/006482
    • 2005-02-28
    • HALLIBURTON ENERGY SERVICES, INC.DUDLEY, James, H.RODNEY, Paul, F.
    • DUDLEY, James, H.RODNEY, Paul, F.
    • E21B47/00
    • E21B47/00
    • To reduce the surveying error in a wellbore, the creation of several reference points within a borehole is carried out by physically placing borehole markers in the borehole casing, the borehole wall or in the formation itself, and providing an accurate reference of the marker location by either storing information specific to the borehole markers inside or on the marker itself, or assigning an identification number to the marker and storing the information relating to that identification number remotely in a database. The borehole markers may contain an electronic module which includes a microcircuit, a transponder dedicated to the transmission and reception of data to/from a detector placed on a wireline tool, a drill string or a coiled tubing. The detectors may have an additional role of interrogation the electronic modules.
    • 为了减少井眼中的测量误差,通过将钻孔标记物理地放置在钻孔套管,钻孔壁或地层本身中,通过在井眼内产生几个参考点,并通过 将井眼标记特有的信息存储在标记本身内或标记本身上,或将标识号分配给标记,并将与该标识号有关的信息远程地存储在数据库中。 钻孔标记可以包含电子模块,其包括微电路,专用于向/从放置在有线工具上的检测器发送和接收数据的转发器,钻柱或连续油管。 检测器可以具有询问电子模块的附加作用。