MATHEMATICAL AND PHYSICAL MODELING To Justify A NEW GEOPHYSICAL METHOD - ELECTRICAL ANISOTROPY LOGGING
A.D. Karinskiy1, A.A. Krasnosel’skikh2
1Sergo Ordzhonikidze Russian State Geological Prospecting University, ul. Miklukho-Maklaya 23, Moscow, 117997, Russia
2Central Research Institute of Geological Prospecting for Base and Precious Metals, Varshavskoe Shosse 129, korp. 1, Moscow, 117545, Russia
Keywords: Electromagnetic logging, electrical-anisotropy coefficient, mathematical modeling, physical modeling
Abstract
Results of theoretical and experimental studies obtained for an electromagnetic logging probe of new design are presented. As in the case of an induction logging probe, the magnetic dipole of the new probe produces a harmonically varying electromagnetic field, and the parameter to be measured is the electric voltage in the short receiving MN line. The theoretical studies have shown that under certain conditions, the results of measurement with this probe depend on the electrical-anisotropy coefficient and do not depend on the longitudinal and transverse electrical resistivities of the anisotropic medium. A technique for determining the electrical-anisotropy coefficient was tested on the experimental data obtained by physical modeling.
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