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    PROCESS FOR DETERMINING THE RESISTIVITY OF A FORMATION THROUGH WHICH A WELL EQUIPPED WITH A CASING PASSES
    3.
    发明申请
    PROCESS FOR DETERMINING THE RESISTIVITY OF A FORMATION THROUGH WHICH A WELL EQUIPPED WITH A CASING PASSES 审中-公开
    用于确定通过壳体输送的孔的形成电阻率的方法

    公开(公告)号：WO2003087882A1

    公开(公告)日：2003-10-23

    申请号：PCT/EP2003/050100

    申请日：2003-04-10

    Applicant: SERVICES PETROLIERS SCHLUMBERGER ,  SCHLUMBERGER HOLDINGS LIMITED ,  SCHLUMBERGER CANADA LIMITED ,  PETROLEUM RESEARCH & DEVELOPMENT N.V. ,  SCHLUMBERGER TECHNOLOGY B.V. ,  SCHLUMBERGER OVERSEAS S.A. ,  SCHLUMBERGER OILFIELD ASSISTANCE LIMITED ,  SCHLUMBERGER SURENCO S.A. ,  SCHLUMBERGER SERVICES LIMITED ,  FAIVRE, Ollivier ,  ROUAULT, Gilles ,  DUBOURG, Isabelle

    Inventor： DUBOURG, Isabelle

    IPC: G01V3/20

    CPC classification number: G01V3/20

    Abstract: Process for determining the resistivity (Rt) of a formation (9) surrounding a well (10) equipped with a casing (11) consisting of several casing segments (11.i, 11.s) with an overlapping part (1), and cement (3) in the overlapping part (1), in which a current is injected into the casing (11) to cause a leakage current (I for) into a area (8) of the formation (9) offset from the overlapping part (1), the leakage current (Ifor) in the measurement area (8) is determined and is used to deduce the measured resistivity (Rm) of the formation, a current is injected into the casing (11) to cause a current leakage (Icem) in the cement (3) of the overlapping part (1), the leakage current (Icem) in the cement (3) in the overlapping part (1) is determined, and is used to deduce the measured resistivity (Rcem) of the cement (3), the measured resistivity (Rm) of the formation (9) is corrected using a factor to take account of the measured resistivity (Rcem) of the cement (3) to obtain the resistivity (Rt) of the formation (9). Application particularly to oil exploration.

    Abstract translation: 用于确定装备有由具有重叠部分（1）的多个套管段（11.i，11.s）组成的壳体（11）的井（10）周围的井（9）的地层（9）的电阻率（Rt）的方法， 在重叠部分（1）中的水泥（3），其中将电流注入到壳体（11）中以使得泄漏电流（I for）进入到从重叠部分偏移的地层（9）的区域（8） （1）中，确定测量区域（8）中的漏电流（Ifor），并且用于推断地层的测量电阻率（Rm），将电流注入到壳体（11）中以引起电流泄漏 Icem）在重叠部分（1）的水泥（3）中，确定重叠部分（1）中的水泥（3）中的漏电流（Icem），并用于推测测量的电阻率（Rcem） 水泥（3），地层（9）的测得的电阻率（Rm）用一个因子进行校正，以考虑到测得的水泥（3）的电阻率（Rcem），以获得电阻率 （Rt）（9）。 特别适用于石油勘探。

    METHOD AND APPARATUS FOR MEASURING RESISTIVITY OF FORMATIONS
    4.
    发明申请
    METHOD AND APPARATUS FOR MEASURING RESISTIVITY OF FORMATIONS 审中-公开
    测量电阻率的方法和装置

    公开(公告)号：WO2010017898A2

    公开(公告)日：2010-02-18

    申请号：PCT/EP2009005546

    申请日：2009-07-17

    Applicant: SCHLUMBERGER SERVICES PETROL ,  SCHLUMBERGER TECHNOLOGY BV ,  SCHLUMBERGER HOLDINGS ,  SCHLUMBER CANADA LTD ,  PRAD RES & DEV LTD ,  DION DOMINIQUE ,  DUBOURG ISABELLE

    Inventor： DION DOMINIQUE ,  DUBOURG ISABELLE

    IPC: G01V3/28

    CPC classification number: G01V3/28

    Abstract: An apparatus for determining the resistivity of formation surrounding a borehole comprising: an elongate conductive body; a pair of transmitter antennas comprising first and second antennas mounted on the body for inducing a current in the formation; and a pair of receiver antennas comprising first and second antennas mounted on the body for measuring an axial current running in the tool body at the location of the receivers; wherein the pair of transmitter antennas is located to one side of the pair of receiver antennas.

    Abstract translation: 一种用于确定围绕钻孔的地层电阻率的装置，包括：细长导电体; 一对发射器天线，包括安​​装在所述主体上的第一和第二天线，用于在地层中感应电流; 以及一对接收器天线，包括安​​装在所述主体上的第一和第二天线，用于测量在所述接收器的位置处在所述工具主体中运行的轴向电流; 其中所述一对发射机天线位于所述一对接收机天线的一侧。

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