SELECTABLE TAP INDUCTION COIL
    1.
    发明申请
    SELECTABLE TAP INDUCTION COIL 有权
    可选择TAP感应线圈

    公开(公告)号:US20060192561A1

    公开(公告)日:2006-08-31

    申请号:US11307673

    申请日:2006-02-16

    IPC分类号: G01V3/18

    CPC分类号: G01V3/28

    摘要: An electromagnetic logging tool includes a support configured for disposal in a well; at least one antenna mounted on the support; and a plurality of coils mounted on the support proximate the at least one antenna, wherein the plurality of the coils are configured for selective connection with the at least one antenna. A methods for balancing an induction array on an electromagnetic logging tool includes measuring a mutual coupling between a transmitter and a receiver on the electromagnetic logging tool; and selectively connecting a subset of a plurality of coils on the electromagnetic logging tool to the transmitter or the receiver based on the measured mutual coupling.

    摘要翻译: 电磁测井工具包括配置成在井中处置的支撑件; 安装在所述支撑件上的至少一个天线; 以及安装在靠近所述至少一个天线的所述支撑件上的多个线圈,其中所述多个线圈被配置为与所述至少一个天线的选择性连接。 用于平衡电磁测井工具上的感应阵列的方法包括测量电磁测井工具上的发射器和接收器之间的相互耦合; 以及基于所测量的互耦合,将电磁测井工具上的多个线圈的子集选择性地连接到发射器或接收器。

    EXTRA BUCKING COILS AS AN ALTERNATIVE WAY TO BALANCE INDUCTION ARRAYS
    2.
    发明申请
    EXTRA BUCKING COILS AS AN ALTERNATIVE WAY TO BALANCE INDUCTION ARRAYS 有权
    作为平衡感应阵列的替代方法,额外的提升线圈

    公开(公告)号:US20060192562A1

    公开(公告)日:2006-08-31

    申请号:US11307674

    申请日:2006-02-16

    IPC分类号: G01V3/18

    CPC分类号: G01V3/28

    摘要: An electromagnetic logging tool is disclosed that includes a support; and at least one four-coil array disposed on the support, wherein the at least one four-coil array comprises: a transmitter, a bucking coil, a receiver, and a trim coil. A method for balancing an induction array is disclosed that includes applying an alternating current to a transmitter of the induction array that comprises the transmitter, a bucking coil and a receiver; measuring a mutual coupling between the transmitter and the receiver; and adding an extra bucking coil, if the mutual coupling exceeds a selected criterion.

    摘要翻译: 公开了一种包括支架的电磁测井工具; 以及设置在所述支撑件上的至少一个四线圈阵列,其中所述至少一个四线圈阵列包括:发射器,降压线圈,接收器和调整线圈。 公开了一种用于平衡感应阵列的方法,其包括向包括发射器,降压线圈和接收器的感应阵列的发射器施加交流电; 测量发射机和接收机之间的相互耦合; 并且如果互耦超过所选择的标准,则添加额外的降压线圈。