Determinination of borehole geometry inside cased wells with crosswell electromagnetics
    1.
    发明申请
    Determinination of borehole geometry inside cased wells with crosswell electromagnetics 有权
    用井眼电磁学确定套管井内钻孔几何形状

    公开(公告)号:US20050168225A1

    公开(公告)日:2005-08-04

    申请号:US11098073

    申请日:2005-04-04

    IPC分类号: E21B47/092 G01V3/26 G01V3/08

    CPC分类号: G01V3/26

    摘要: A method is disclosed for locating a receiver in a borehole having a conductive liner by inducing an electromagnetic field from a transmitter in a first borehole, detecting at a first location by at least one receiver located in a second borehole having a conductive liner, a first electromagnetic field induced by the transmitter, detecting at a second location by the at least one receiver, a second electromagnetic field induced by the transmitter and calculating a set of geometry coordinates for the first location based on the first electromagnetic field and the second electromagnetic field.

    摘要翻译: 公开了一种用于将接收器定位在具有导电衬套的钻孔中的方法,该接收器通过在第一钻孔中从发射器感应电磁场,在第一位置处由位于具有导电衬套的第二钻孔中的至少一个接收器检测第一 由所述发射机感应的电磁场,由所述至少一个接收机在第二位置处检测由所述发射机感应的第二电磁场,并基于所述第一电磁场和所述第二电磁场计算所述第一位置的一组几何坐标。

    Determination of borehole geometry inside cased wells with crosswell electromagnetics
    2.
    发明授权
    Determination of borehole geometry inside cased wells with crosswell electromagnetics 有权
    用井眼电磁学确定套管井内的钻孔几何

    公开(公告)号:US07095232B2

    公开(公告)日:2006-08-22

    申请号:US11098073

    申请日:2005-04-04

    IPC分类号: G01V3/08 G01V3/26

    CPC分类号: G01V3/26

    摘要: A method is disclosed for locating a receiver in a borehole having a conductive liner by inducing an electromagnetic field from a transmitter in a first borehole, detecting at a first location by at least one receiver located in a second borehole having a conductive liner, a first electromagnetic field induced by the transmitter, detecting at a second location by the at least one receiver, a second electromagnetic field induced by the transmitter and calculating a set of geometry coordinates for the first location based on the first electromagnetic field and the second electromagnetic field.

    摘要翻译: 公开了一种用于将接收器定位在具有导电衬套的钻孔中的方法,该接收器通过在第一钻孔中从发射器感应电磁场,在第一位置处由位于具有导电衬套的第二钻孔中的至少一个接收器检测第一 由所述发射机感应的电磁场,由所述至少一个接收机在第二位置处检测由所述发射机感应的第二电磁场,并基于所述第一电磁场和所述第二电磁场计算所述第一位置的一组几何坐标。

    Determination of borehole geometry inside cased wells with crosswell electromagnetics

    公开(公告)号:US07049821B2

    公开(公告)日:2006-05-23

    申请号:US10250030

    申请日:2003-05-29

    IPC分类号: G01V3/08 G01V3/26

    CPC分类号: G01V3/26

    摘要: A method is disclosed for locating a receiver in a borehole having a conductive liner by inducing an electromagnetic field from a transmitter in a first borehole, detecting at a first location by at least one receiver located in a second borehole having a conductive liner, a first electromagnetic field induced by the transmitter, detecting at a second location by the at least one receiver, a second electromagnetic field induced by the transmitter and calculating a set of geometry coordinates for the first location based on the first electromagnetic field and the second electromagnetic field.

    METHOD AND SYSTEM FOR SURVEYING A DISTRIBUTION OF CHARGEABILITY IN A VOLUME OF EARTH
    4.
    发明申请
    METHOD AND SYSTEM FOR SURVEYING A DISTRIBUTION OF CHARGEABILITY IN A VOLUME OF EARTH 审中-公开
    用于调查地震能力分布的方法和系统

    公开(公告)号:US20140149037A1

    公开(公告)日:2014-05-29

    申请号:US14088130

    申请日:2013-11-22

    IPC分类号: G01V3/08

    CPC分类号: G01V3/08

    摘要: A method for surveying a distribution of chargeability in a volume of earth includes inducing polarization in the volume of earth by applying first and second primary magnetic fields to the volume of earth, with the first and second primary magnetic fields respectively oscillating at a first and second frequencies. First and second secondary magnetic fields emitted by the volume of earth in response to application of the primary magnetic fields are measured, with the first and second frequencies being selected such that the induction number of the volume of earth is less than unity, and, in one example, such that the imaginary portions of the secondary magnetic fields depend approximately linearly upon frequency. Distribution of chargeability can be determined for the volume of earth from a linear combination of the first and second secondary magnetic fields.

    摘要翻译: 用于测量地球体积中的带电性分布的方法包括通过将第一和第二初级磁场施加到地球的体积来诱发地球体积的极化,其中第一和第二主磁场分别在第一和第二 频率 测量响应于主磁场的施加而由地球体积发射的第一和第二次级磁场,其中选择第一和第二频率使得地球体积的感应数小于单位,并且在 一个示例,使得次级磁场的虚部基于频率大致线性地取向。 可以从第一和第二次级磁场的线性组合确定地球体积的充电性的分布。