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FEATURES OF FORMATION AND QUANTATIVE EVALUATION OF PETROLEUM POTENTIAL OF THE EREMIN-CHONA GIANT OIL-AND-GAS ACCUMULATION

G. G. Shemin 1,2, M. Yu. Smirnov 3, А. G. Vakhromeev 4, S. А Моiseev 1, А. V. Мigursky 5

1 A. A. Trofimuk Istitute of Petroleum Geology and Geophysics SB RAS, Novosibirsk, Russia; 2 National Research Novosibirsk State University, Novosibirsk, Russia; 3 RN-KrasnoyarskNIPIneft, Krasnoyarsk, Russia; 4 Institute of the Earth’s Crust SB RAS, Irkutsk, Russia; 5 Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia

The results of investigations for elucidation of tectonic, lithological and facial features of the Eremin-Chona oil-and-gas accumulation formation are reported. Modern structural plans and the history of their formation are characterized. The composition, structure, formation conditions, post-sedimentation transformations and reservoir properties of the Osa (B1), Ust’-Kut (B3–4, B5), Preobrazhenka, Erbogachen (beds B12, B13) horizons are considered. The properties of seals, superposing them, are evaluated. The method and results of the payout beds petroleum potential quantitative evaluation are outlined.

Keywords: bed, features of formation, secondary processes, reservoir, seal, oil, gas, quantitave evaluation.

DOI 10.20403/2078-0575-2018-4-60-78