Geoinformatika 2021; 3-4(79-80) : 18-50
УДК 528+550.837+553.98
On the prospects of using the technology of frequency-resonance processing of remote sensing data when conducting profile geoelectric and seismic studies
M.A. Yakymchuk1, I.M. Korchagin2
1Institute of Applied Problems of Ecology, Geophysics and Geochemistry, 1, Laboratorny Lane, Kyiv, 01133, Ukraine, e-mail: yakymchuk@gmail.com
2Institute of Geophysics, NAS of Ukraine, Palladin Ave., Kyiv, 03680,Ukraine, e-mail: korchagin.i.n@gmail.com
Purpose. The results of studies along the geoelectric profile in the Caucasus, seismic profiles in the territory of Ukraine, on the prospecting area in Odessa region, within areas of an exploratory well drilling on the Gambia offshore and the oil and gas fields in Moldova are presented. The studies were carried out with the aim of additional approbation of direct-prospecting methods and the methodological techniques of their application improvement in the exploration process for oil, gas and natural hydrogen, as well as in the study of the deep structure of the structural elements of the Earth.
Design/methodology/approach. The developed mobile and low-cost technology include 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, water, gold, zinc, etc.
Findings. Volcanic structures filled with limestones, dolomites, marls, siliceous rocks, granites, basalts and ultramafic rocks were found in the areas in the near-Elbrus geoelectric profile. Signals from hydrogen and red phosphorus are recorded in the contours of the basalt volcano. Basalt volcanoes with hydrogen and living water have been identified along the DDB profiles within five areas, and diamondiferous kimberlite volcanoes within three areas. The responses at HC frequencies were recorded in the contours of three volcanoes with sedimentary rocks of 1-6 groups. Basalt volcanoes with hydrogen and living water were discovered along the seismic profile of 2021 on the territory of Ukraine at 11 sites! Signals at HC frequencies were recorded at 8 sites in volcanoes of sedimentary rocks of 1-6 groups. On the territory of Romania, four basalt volcanoes were discovered, and within two areas – kimberlite volcanoes with diamonds. According to the results of the work, the probability of fluid inflows obtaining in an exploratory well on the Gambia offshore is close to zero. Within the prospecting
area in the south of the Odessa region, it is advisable to carry out detailed geological exploration for oil and gas. Materials of reconnaissance works on the Moldova territory allow us to state that the deep horizons of the cross-sections in the country are promising for the hydrocarbon deposits and natural hydrogen searching.
The practical significance and conclusions. The results of the survey within local sites and areas along the geoelectric and seismic profiles indicate the advisability of application of direct-prospecting methods and technologies when studying the deep structure of small areas and large blocks by geoelectric and seismic methods. The proven mobile technology of frequency-resonance processing of satellite images and photographs allows filling the studied cross-section with specific rocks (sedimentary, metamorphic and magmatic), as well as identifying areas on the surface and intervals in the cross-section that are promising for ore and combustible minerals prospecting.
Keywords: Ukraine, Moldova, the Dnieper-Donetsk depression, seismic profile, geoelectric cross-section, granites, limestones, dolomites, marls, basalts, hydrogen, direct prospecting, deep structure, oil, gas, carbon dioxide, sounding of the cross-section, remote sensing data processing.