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Geoinformatika 2009; 1 : 23-33

PRACTICAL EXPERIENCE OF  OPERATIVE FINDING, MAPPING AND MONITORING OF MAN-CAUSED GAS POOL BY GEOELECTRIC METHODS

Levashov S.P., Yakymchuk N.A., Korchagin I.N., Syniuk B.B.

The article presents practical experience of experimental application in 2008 of non-traditional geoelectric methods of forming a short-pulsed electromagnetic field (FSPEF) and vertical electric-resonance sounding (VERS) (FSPEF–VERS express-technology) in monitoring observations of the gas pump-down from “man-caused” pool. The zone of gas penetration in upper aquaferous strata of a cross-section was revealed and mapped on a hydrocarbon field by FSPEF method survey. The depths of water-bearing reservoirs and the gas layer location were determined by VERS sounding. Additional boreholes were placed for gas pumping-out on measurements data by the FSPEF–VERS methods. Multiple field measurements have shown that the process of gas pumping-out from a “man-caused” pool can be monitored (and it is actually tracked) in time by using the FSPEF–VERS technology. The results of the experiments testify to the practical possibility of using these methods for operative solving of specific problems in oil- and gas-extraction, they are also one more weighty argument for a much broader usage of FSPEF–VERS technologies in a geological oil and gas prospecting process.

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