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Geoinformatika 2020; 2(74) : 50-68

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FEATURES OF THE DEPTH STRUCTURE AND PROSPECTS OF OIL AND GAS POTENTIAL OF THE CARPATHIAN REGION BY RESULTS OF CROSS-SECTION FREQUENCY RESONANCE SOUNDING

M.A. Yakymchuk1, I.M. Korchagin2, K.P. Yanushkevych1

1Institute of Applied Problems of Ecology, Geophysics and Geochemistry, 1, Laboratorny Lane, Kyiv, 01133, e-mail: yakymchuk@gmail.com, katerynaslyzka@gmail.com
2Institute of Geophysics, NAS of Ukraine, Palladin Ave., Kyiv, 03680,Ukraine, e-mail: korchagin.i.n@gmail.com

Purpose. The results of reconnaissance studies using the methods of satellite images and photographs frequency-resonance processing along the profile through the Carpathians, as well as within a separate block of the Ukrainian Shield are presented. The main objectives of the experimental work carried out are to study the deep structure of these regions, as well as an integral assessment of the prospects of combustible and ore minerals discovery within their limits.

Design/methodology/approach. The developed mobile and low-cost technology includes modified methods of frequency-resonance processing and decoding of satellite images and photo images, vertical electric-resonance sounding (scanning) of a cross-section, as well as a method of integrated assessment of the prospects of oil and gas potential of large prospecting blocks and license areas. Separate methods of this direct-prospecting technology are based on the principles of the “substance” paradigm of geophysical research, the essence of which is to search for a specific substance – oil, gas, gas condensate, gold, zinc, etc.

Findings. Nine types of volcanic complexes were found in the surveyed areas, which indicate a fundamentally important contribution of volcanic processes on Earth to the formation of the external appearance and deep structure of the planet, as well as the genesis of various minerals. The results of recording responses from oil, condensate, gas and amber on the surface of 57 km indicate their possible synthesis in volcanoes filled with salt, sedimentary rocks of 1-6 groups, limestones, granites and ultramafic rocks. Within active volcanoes of this type, there may be channels for the hydrocarbons migration to the surface and replenishment of oil and gas deposits already formed in the upper part of the cross-section. Such a channel can be found at the location of the second point, where responses at oil frequencies (including very intense ones) were recorded without interruptions from 1970 m to 10 km. The materials of the work, conducted on the area in the Vinnitsa region, once again confirmed the forecasts of S.P. Ipatenko on the possibility of hydrocarbon deposits detecting on the Ukrainian Shield. By scanning the cross-section in this area, oil responses (including intense ones) were obtained from the intervals of 4715-5373 m, 5480-6385 m, 7050-8845 m, 9430-10150 m. Areas of the responses fixation at HC frequencies within the USh deserve detailed study with the aim of detecting and localizing possible deposits of oil, condensate and gas. In the southeastern part of the block, a basalt volcano was found on the shield, within which the upper edges of responses from basalts, hydrogen, and water were recorded at depths of 240, 250 and 260 m, respectively. Within this fragment of the block, it is advisable to conduct research in order to localize a site promising for the discovery of healing, hydrogen-rich water.

The practical significance and conclusions. The results of experimental work show that the used low-cost direct prospecting technology made it possible to obtain new information about the deep structure and minerals in the areas of the reconnaissance survey. The mobile technology tested in various regions of the world can find application for studying the deep structure of the Earth, integral assessment of the oil and gas potential of large prospecting blocks and local areas, detection and localization of intervals, promising for oil and gas in the deep horizons of the cross-section, additional assessment of the prospects of hydrocarbon inflows obtaining at local drilling areas of prospecting and exploratory wells.

Keywords: Carpathians, Ukrainian shield, direct prospecting, vertical channel, volcano, deep structure, cross-section, oil, gas, hydrogen, amber, salt, satellite data, mobile technology, vertical sounding.

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Receive 06.05.2020