FIELD: mining.
SUBSTANCE: in compliance with the claimed process, induction currents are induced in host rocks with the help of the system composed by two identical-moment exciter coils directed perpendicular to each other and to the well axis and displaced over the analysed well by harmonic counter-phase currents equal in the amplitude. The quadratures of Re, Jm and the phases of horizontal components of magnetic induction Bx and By measured at different spacings are used to define the host rocks resistivity.
EFFECT: expanded range of host rock resistivity determination and enlarged range of geophysical analysis.
6 dwg
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