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Geoinformatika 2018; 1(65) : 24-34

RESULTS OF direct-Prospecting technology APPLICATION FOR MAPPING AND THE DEPTH GAS HYDRATES GENESIS DEFINITION IN SELECTED STRUCTURES OF THE CONTINENTAL margins OF THE WORLD OCEAN.

V.D. Soloviev1, S.P.Levashov2,3, N.A.Yakymchuk2,3, I.N. Korchagin1,D.N.Bozhezha2

1Institute of Geophysics, NAS of Ukraine, 32, Palladin Ave., Kyiv, 03680, Ukraine, e-mail: korchagin.i.n@gmail.com
2Institute of Applied Problems of Ecology, Geophysics and Geochemistry, 1, Laboratorny Lane, Kyiv, 01133, Ukraine
3Management and Marketing Center of the Institute of Geological Science, NAS of Ukraine, 1, Laboratorny Lane, Kyiv, 01133, Ukraine

Purpose. Application of frequency resonance technology of RS data processing for the detection of hydrocarbon accumulations (gas hydrates, gas) within the local areas of the structures of the continental margins of the Antarctic Peninsula (Western Antarctica) and the northern continental margin in the South China Sea. The methodology of prospecting for hydrocarbons in marine areas improvement.
Design/methodology/approach.  Mobile direct-prospecting technology includes frequency-resonance method of remote sensing data (satellite images) processing and interpretation and ground-based geoelectric methods of the forming a short-pulsed electromagnetic field (FSPEF (SKIP)) and vertical electric-resonance sounding (VERS). Separate methods of technology can be used at various stages of prospecting – reconnaissance (assessment of oil and gas prospects of large search blocks), detailed (evaluation of predicted oil and gas resources within individual, local anomalous zones), field (ground-based surveys by the SKIP and VERS methods with the aim of clarifying the projected hydrocarbon resources and the optimal locations selection for prospecting and exploratory wells).
Findings. As a results of experimental studies the anomalous zones of the “gas hydrate” type in the areas of BSR-reflections distribution are localized. At the Shenhu area, four anomalous zones of the “gas” type were identified. The results of the application of frequency-resonance processing of remote sensing data can be refined after researches by field geoelectric methods of forming a short-pulsed electromagnetic field (FSPEF) and vertical electric-resonance sounding (VERS).
The practical significance and conclusions. Additional arguments have been obtained to determine the possible mechanism for the formation of identified hydrocarbon accumulations as part of the global process of meso-Cenozoic accumulation of hydrocarbons occurring within the continental margins of the World Ocean as a result of large-scale degassing of the Earth. Mobile and direct-prospecting technology (frequency-resonance method of satellite images processing and geoelectrical methods of SKIP and VERS) in combination with traditional geophysical methods (seismic, in the first place) can be used to search for of hydrocarbons accumulations (oil, gas, gas hydrates) in marine waters.

Keywords: frequency-resonance processing of satellite images, anomaly of the reservoir type, gas hydrates, gas “pipes”, continental margins, Western Antarctica, South China Sea.

The full text of papers

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