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COMPREHENSIVE CHARACTERISTICS AND QUANTITATIVE ASSESSMENT OF PROSPECTS OF PETROLEUM CONTENT IN THE REGIONAL OIL AND GAS RESERVOIRS OF THE UPPER VENDIAN – LOWER CAMBRIAN ALLOCHTHONOUS CARBON-BEARING MACROCOMPLEX AT THE PREDPATOM REGIONAL TROUGH (SIBERIAN PLATFORM)

G. G. Shemin 1, A. V. Migursky 2, M. Yu. Smirnov 2, A. G. Vakhrameev 4, A. V. Pospeev 3

1 Institute Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia; 2 Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia; 3 Institute of the Earth’s crust SB RAS, Irkutsk, Russia; 4 Irkutsk branch ООО «RN-Drilling», Irkutsk, Russia

The Predpatom regional trough is situated in the southeastern part of the Siberian Platform along the Eastern Siberia-Pacific Ocean active crude oil pipeline. This is an available large facility designed for developing reserves and hydrocarbon extraction. It is still not adequately studied by seismic exploration and drilling and characterized by complex structure, which hampers the development of structure models of Vendian-Lower Cambrian petroleum deposits and a reliable estimate of their hydrocarbon prospects. The authors have considered some structure models of permeable complexes and fluid seals of the Nizhnedanilovsky, Verkhnedanilovsky and Usolsky regional reservoirs composing an Upper Vendian - Lower Cambrian allochthonous part of the sedimentary cover. They also present some quantitative estimate results of hydrocarbon prospects of those reservoirs.

Keywords: Predpatom regional trough, reservoir, permeable complex, fluid seal, pay, quantitative estimate, hydrocarbon prospects, reference area, design area, resources, reserves, oil, gas, condensate.

DOI 10.20403/2078-0575-2018-1-32-55