Mobile Technology of Frequency-Resonance Processing and Interpretation of Remote Sensing Data: The Results of Application in Different Region of Barents Sea

Abstract

Abstract The results of application the technology of frequency-resonance processing and interpretation of remote sensing (RS) data for the hydrocarbons (HC) accumulation searching and prospecting in different region of Barents Sea are analyzed in the paper. This mobile method 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. Technology 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, oil and gas-condensate type may be determined by vertical scanning of RS data within detected anomalous areas. Mobile technology allows to get a new (additional) and, more importantly, independent information about petroleum potential of the surveyed areas. This information in integration with available geological and geophysical materials can be used to select the objects for detailed studying and primary drilling. Mapped large anomalous zone of the "gas reservoir" and "gas-condensate reservoir" type on the unique Shtokman field allows to conclude, that giant and unique HC deposits in the Arctic region can be detected and mapped by used mobile method. The absence of anomalous zone over Central structure on the Fedynsky High and the relatively small anomalous zone over Pakhtusovskaya structure indicate that the probability of finding giant fields within these structures is very low. Consequently, the detailed geological-geophysical studies and drilling within these structures at this stage of prospecting are impractical due to the fact that at such a distance from the coast now is economically feasible to develop only the giant and unique HC deposits. Seven anomalous zones of the "gas+condensate" type were mapped also within area of the large Varnekskoye uplift. Seven anomalies of "oil and gas deposits" type have been discovered and mapped on the Norwegian shelf in the area of Skrugard and Havis fields' location with mobile method using. In the Norwegian part of the former "gray" zone of the Barents Sea the remote sensing data were processed within four search sites covering 39742 km2. Area of 3D seismic work within them is 13956 km2. Two anomalous zones of the "gas deposit" type and 13 anomalous zones of "gas+condensate reservoir" type with total area of 1613 km2 were detected and mapped within investigated areas. The received results show the principal possibility of remote sensing, seismic and geoelectric methods integrated application for hydrocarbon accumulations prospecting and exploration within offshore. The mobile technology of frequency-resonance processing of RS data provides a unique opportunity to operatively investigate in reconnaissance character within the Arctic region the most promising areas for the detection of giant and unique HC fields. This may significantly speed up the development of the oil and gas potential of Arctic region.