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Geoinformatika 2018; 1(65) : 35-40

FEATURES OF THE INVERSE PROBLEM SOLUTION OF INDUCTION LOGGING IN HIGHLY CONDUCTIVE WELLS

M.L. Myrontsov

Institute of Telecommunications and Global Information Space NAS of Ukraine, 13,  Chokolivskiy boulevard, Kyiv, 03186, Ukraine, e-mail: myrontsov@ukr.net

Purpose. Investigating the possibility of induction logging in highly conductive wells. Experimental studies conducting in the Dnieper-Donets Basin conditions.
Design/methodology/approach. Inverse problem solutions were carried out with the corrections “for the well”, “for the skin-effect” and “for the surrounding rocks”. This approach is provided the determination an error of calculation of the geoelectricals parameters of well cut model.
Findings. Inverse problem was solved for the experimental highly conductive well logging cut material. The error value of this solution is obtained. It is shown that the inverse problem of induction logging in highly conductive wells can be unstable. Therefore, resistivity logging should be used in highly conductive wells.
Practical value/implications. Induction logging in highly conductive wells can provide the wrong result.

Keywords: inverse problem, electrometry in wells, induction logging

The full text of papers

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