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US08952700B2 Method for minimizing delays while drilling using a magnetic ranging apparatus 有权
使用磁测距装置在钻孔时最小化延迟的方法

Method for minimizing delays while drilling using a magnetic ranging apparatus
Abstract:
A method and system is provided for minimizing delays in a magnetic ranging method. Delays are minimized by establishing synchronicity between triggering of a three-axis magnetometer and energization of a solenoid assembly deployed in the borehole being drilled and the first borehole, respectively. Synchronicity enables measuring various components of the alternating magnetic field created by energization of the solenoid assembly by the magnetometer, the moment the solenoid assembly is energized. The recorded components are used for computation of steering data for drilling the second borehole relative to the first borehole. The steering data can be determined at the surface or downhole.
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