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Geoinformatika 2018; 2(66) : 34-47

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RESULTS OF THE SATELLITE IMAGES FREQUENCY-RESONANT PROCESSING OF THE SEARCH BLOCK IN THE BARENTS SEA IN THE AREA OF DRILLED WELL 7435/12-1 KORPFJELL

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

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

Purpose. The article aims to additionally demonstrate the expediency of mobile direct-prospecting methods used in offshore prospecting for oil and gas; to analyze the results of the assessment of the prospects for oil and gas potential of individual search areas and structures of the Barents Sea by the frequency-resonance method of processing and interpretation of Earth remote sensing data; to present the anomalous zones detected and mapped on the surveyed areas with a coordinate reference.
Design/methodology/approach. Mobile technology of frequency-resonance processing and interpretation (decoding) of remote sensing data is a “direct” method of searching for oil and gas, as well as ore minerals. The technology is developed on the basis of the “substance” paradigm of geophysical research, the essence of which is to search for a specific (sought in each case) substance – oil, gas, gas-condensate, gold, zinc, uranium, etc. The technology has been tested in the search areas and known hydrocarbon fields in various regions of the world and is constantly being improved.
Findings. Satellite images of four search sites with a total area of ​​39742 km2 were processed in the Norwegian part of the former “gray” zone of the Barents Sea. The area of ​​3D seismic works within them is 13956 km2. Two anomalous zones of the “gas deposit” type and 13 anomalous zones of the “gas + condensate deposit” type with a total area of ​​1613 km2 were detected. The drilled well within one of the area  7435/12-1 with a depth of 1508 m does not enter the contours of the mapped anomalous zones, and commercial volumes of gas are not detected there. Seven anomalous zones of the “gas + gas condensate” type were mapped in the area of ​​the large Varnekskaya uplift. A satellite image of the local site of the 34/8-19 S projected well in the North Sea is processed in a detail scale; an anomalous zone of the “gas + condensate” type with a maximum reservoir pressure of 21.3 MPa was detected; the projected well is located within the mapped anomaly.
Practical value /implications. The results of applying the technology of frequency-resonance processing and interpretation of remote sensing data indicate the expediency of using them in selecting sites for prospecting and exploratory wells location. This direct-prospecting technology provides a unique opportunity to promptly survey all the most promising areas within the Arctic region in the reconnaissance regime in order to detect the giant and unique hydrocarbon deposits. A more active use of this technology will significantly accelerate the development of the oil and gas potential of this region as well as other remote and hard-to-reach regions of the world.

Keywords: mobile technology, anomaly of deposit type, oil, gas, gas condensate, offshore, well, Barents Sea, satellite data, direct searches, remote sensing data processing, interpretation.

 

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