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Combined electric-field telemetry and formation evaluation method and apparatus
Combined electric-field telemetry and formation evaluation method and apparatus
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机译:联合电场遥测与地层评价方法及装置
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摘要
An apparatus for borehole electric-field telemetry that comprises a source of modulated voltage or current, at least one axially non-conductive collar connected between pipe sections in a pipe string, and a system of insulated wireline components providing electrical connections, insulated from drilling fluids, between the ends of the one or more aforementioned insulated collars in the pipe string, to transmit the voltage or current.
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