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Geoinformatika 2017; 1(61) : 5-18 (in Russian) 

APPLICATION OF FREQUENCY-RESONANCE METHOD OF REMOTE SENSING DATA PROCESSING IN DETAILED MODE FOR PETROLEUM POTENTIAL EVALUATION OF LOCAL EXPLORATION BLOCK

S.P. Levashov1, B.Kh. Batyrova2, N.A. Yakymchuk1, I.N. Korchagin3, D.N. Bozhezha1

1Institute of Applied Problems of Ecology, Geophysics and Geochemistry, 1, Laboratorny Lane, Kyiv, 01133, Ukraine
2“Sky Quest Exploration”, 164, Kabanbai Batyr Str., Almaty, 050012, Republic of Kazakhstan
3Institute of Geophysics, NAS of Ukraine, 32 Palladin Ave., Kyiv, 03680, Ukraine, e-mail: korchagin@karbon.com.ua

The purpose of the article is to analyze the application of mobile and direct-prospecting technology for the petro­leum potential operative assessment of a large prospecting block and the projected oil resources detected within the discovered local anomalous zones; to improve the methods of prospecting and exploration.
Design/methodology/approach. Mobile technology includes the frequency-resonance method of remote sensing data processing and decoding, and the ground-based geo-electric methods of forming the short-pulsed electromagnetic field (FSPEF) and vertical electric-resonance sounding (VERS). Some methods of technology can be used at various stages of prospecting operations: reconnaissance (assessment of petroleum potential of major search blocks); detailed (assess­ment of projected oil and gas resources within the individual anomalous zones, detected at the reconnaissance stage of prospecting); the field investigation (ground-based field studies with geo-electric methods FSPEF and VERS to clarify the projected oil and gas resources and to choose the optimal locations of prospecting and exploration wells laying).
Findings. At the reconnaissance prospecting research stage within the Vladimirskaya area (approximately 8000 km2), 27 anomalous zones of the “hydrocarbon deposit” type have been detected and mapped. By the detailed works within the “Western” anomalous zone: a) the contours of the anomaly were refined; b) the center point of the anomalous zone was set, in which by the vertical scanning of the cross-section in the range of 700–2700 m the depths and thicknesses of the allocated APL of “oil” and “gas”type were determined; c) based on the data obtained, the volume of the most promising APL of the “oil” type was calculated and the projected oil resources in them were evaluated, which constituted – 35.31 million tons. Within the anomalous zone contours, the vertical channel of deep fluids migration was discovered. On the “Central” anomalous zone at two APL of the “gas” type, the anomalous responses to the resonance frequencies of hydrogen were detected, with one APL – of helium.
Practical significance and conclusions. The direct-prospecting technology may be recommended for use in combination with traditional geophysical methods (seismic, primarily) for an operative assessment of the hydrocarbon potential of major search blocks and local areas. Its application can produce a significant effect during the commercial hy­drocarbon accumulations searching in unconventional reservoirs (including the areas of shale spreading, rocks of the Bazhenov formation, coal-bearing formations, and crystalline rocks). Mobile technology can also be successfully used in investigating poorly studied areas and blocks within the known oil and gas-bearing basins.

Keywords: mobile technology, the “deposit” anomaly type, “oil”, “gas”, drill, field work, geo-electric methods, fault zone, satellite data, direct search, remote sensing data processing and analysis.

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