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Geoinformatika 2014; 2(50) : 5-21  (in Russian)

RESULTS OF DETAILED GEOPHYSICAL INVESTIGATIONS FOR THE HYDROCARBONS ACCUMULATIONS EXPLORATION WITHIN UKRAINIAN SHIELD

S.P. Levashov1,2, N.A. Yakymchuk1,2, I.N. Korchagin3, D.N. Bozhezha2, D.R. Shust4

1Institute of Applied Problems of Ecology, Geophysics and Geochemistry,Laboratorny lane, 1, Kyiv 01133, Ukraine
2Management and Marketing Center of Institute of Geological Science NAS Ukraine,
Laboratorny lane, 1, Kyiv 01133, Ukraine
3Institute of Geophysics of Ukraine National Academy of Science,
Palladin av., 32, Kiev 03680, Ukraine, e-mail: korchagin@karbon.com.ua
4Ltd. “Geophysics-777”, Kiev, Ukraine

The results of the application of technology of frequency-resonance processing and interpretation of remote sensing (RS) data and geoelectric methods of forming short-pulsed electromagnetic field (FSPEF) and vertical electric-resonance sounding (VERS) (FSPEF-VERS express-technology) for the hydrocarbons accumulation searching on three prospect area (“South”, “West”, “North”) in the different parts of the Ukrainian crystalline shield are analyzed. The anomalous zone of the “oil reservoir”, “condensate reservoir” and “gas reservoir” type was detected and mapped within all investigated areas by the remote sensing data processing. These anomalies were confirmed and detailed by the FSPEF survey. The bedding depths of the anomalous polarized layers (APL) of oil, gas and gas-condensate type were determined by VERS sounding within anomalous zone. The projected resources of gas, condensate and oil have been estimated for all investigated plots by the results of detailed studies. The site “North” is recommended for priority drilling. The optimal area for exploratory well laying was highlighted within it. The investigation results show that mobile technologies can be used for exploration and prospecting the hydrocarbon accumulations in crystalline massifs and tectonic fracture (fault) zones of the crystalline basement. The operative assessment of petroleum potential of insufficiently studied sites and areas in different regions of Ukraine can be made with mobile geophysical technologies using. The used mobile methods works within the framework of the “substantial” paradigm of geological and geophysical studies, the essence of which is “direct” searching for a particular substance such as oil, gas, gold, silver, platinum, zinc, iron, water, etc.  FSPEF method and technology of remote sensing data processing allow to detect and map operatively the anomalous zones of the “oil accumulation” and (or) “gas accumulation” type. The bedding depths of the anomalous polarized layers (APL) of gas and gas-condensate type may be determined by VERS sounding within one anomalous areas. Mobile technology allows to get a new (additional) and, more importantly, independent information on the petroleum potential of the surveyed areas. This information, in conjunction with available geological and geophysical materials can be used to select the objects for detailed studying and primary drilling.

Keywords: Geoelectric survey, electric-resonance sounding, anomaly “deposit” type, gas, gas condensate, fault zone, crystalline massif, basement, satellite data, technology, direct searching, processing and interpretation.

The full text of papers 

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