Device for electromagnetic detection of geological properties in a well
    1.
    发明授权
    Device for electromagnetic detection of geological properties in a well 失效
    井中地质特征的电磁检测装置

    公开(公告)号:US06714153B1

    公开(公告)日:2004-03-30

    申请号:US09719638

    申请日:2001-02-28

    IPC分类号: G01S1388

    CPC分类号: G01V3/30

    摘要: The invention is a well radar for detecting, by electromagnetic wave reflection, resistivity horizons in production zones in oil wells. Transmitter and receiver antennas are combined in a tubing string antenna module. Two dipole transmitter antenna are positioned in a first position on either side of the tubing string antenna module. A first directionally sensitive group of four dipole receiver antennas is positioned in a second positioned so that the receiver antennas have even angular separation. Likewise, a second directionally sensitive group of four dipole receiver antennas is positioned in a third position opposite the first directionally sensitive group.

    摘要翻译: 本发明是通过电磁波反射检测油井生产区的电阻率范围的良好雷达。 发射器和接收器天线组合在管柱天线模块中。 两个偶极发射器天线位于管柱天线模块两侧的第一位置。 第一定向灵敏组的四个偶极子接收器天线位于第二定位中,使得接收器天线具有均匀的角度间隔。 类似地,四个偶极子接收器天线的第二方向敏感组位于与第一定向敏感组相对的第三位置。

    Method and device for detection of em waves in a well
    2.
    发明授权
    Method and device for detection of em waves in a well 失效
    在井中检测电磁波的方法和装置

    公开(公告)号:US06525540B1

    公开(公告)日:2003-02-25

    申请号:US09719639

    申请日:2001-02-13

    IPC分类号: G01L330

    摘要: A method for detecting electrical properties in a geological formation in a well which has within it a tubing string comprising the steps of mounting a transmitter antenna outside of the tubing string in a fixed position with respect to the geological formation, mounting a receiving antenna outside of the tubing string in a fixed position with respect to the geological formation, generating a first series of electromagnetic waves at a first time, receiving a first series of reflected electromagnetic waves in the receiver antenna, transforming the first series of reflected electromagnetic waves to form a first registration, generating a second series of electromagnetic waves at a second time, receiving a second series of reflected electromagnetic waves in the receiver antenna, transforming the second series of reflected electromagnetic waves to form a second registration, and comparing the registrations. Also disclosed is a device for accomplishing the method.

    摘要翻译: 一种用于检测井内地质构造中的电性能的方法,其中在其中具有管柱,其包括以下步骤:将发射器天线安置在相对于地质构造的固定位置的管柱之外,将接收天线安装在 所述油管柱相对于所述地质构造处于固定位置,在第一时间产生第一系列电磁波,在所述接收器天线中接收第一系列反射电磁波,将所述第一系列反射的电磁波变换为 第一次登记,在第二次产生第二系列电磁波,在接收机天线中接收第二系列的反射电磁波,变换第二系列的反射电磁波,形成第二次配准,并比较注册。 还公开了一种用于实现该方法的装置。

    Method and apparatus for determining the nature of subterranean reservoirs
    8.
    发明申请
    Method and apparatus for determining the nature of subterranean reservoirs 有权
    确定地下油藏性质的方法和装置

    公开(公告)号:US20050017722A1

    公开(公告)日:2005-01-27

    申请号:US10919842

    申请日:2004-08-17

    IPC分类号: G01V3/12 G01V1/00

    CPC分类号: G01V3/12 Y02A90/344

    摘要: A system for detecting a subterranean reservoir or determining the nature of a subterranean reservoir 12 whose position and geometry is known from previous seismic surveys. An electromagnetic field 24, 25, 26, 27 is applied by a transmitter 18 on the seabed 14 and detected by antenna 21, 22, 23 also on the seabed 14. A refracted wave component is sought in the wave field response, to determine the nature of any reservoir present.

    摘要翻译: 一种用于检测地下储层或确定地下储层12的性质的系统,其位置和几何形状从先前的地震勘测中已知。 电磁场24,25,26,27由发射器18施加在海底14上,并且也由天线21,22,23检测。在波场响应中寻求折射波分量,以确定 任何水库存在的性质。