... methods The structure of the electromagnetic field and the radial range of the logging system will be determined by the electrical structure of the medium, the frequency of the supply voltage and the length of the insulation coating of the housing of the bottom hole telemetry system. To quantify the radial depth of penetration of electric current, a function of "depth" is introduced. Application of the theory of lateral electric well logging with bipolar probes with a multilayer structure near ...

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