SAYAN-yENISEI POTENTIAL PETROLEUM AREA AND ITS RESOURCE POTENTIAL
I.A. Gubin1, A.E. Kontorovich1, L.M. Burshtein1,2, L.N. Konstatinova1, E.N. Kuznetsova1, S.A. Moiseev1,2, P.I. Safonov1,2
1Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
2Novosibirsk State University
Keywords: Riphean, Vendian, Cambrian, hydrocarbon resources, Lena-Tunguska petroleum province, Sayan-Yenisei potential petroleum province
Abstract
This study presents the results of recent regional seismic exploration and deep drilling efforts in the Sayan-Yenisei syneclise and adjacent areas of the Lena-Tunguska petroleum province. These results were used to build a series of structure maps for Riphean, Vendian and Lower Cambrian reflectors; thickness maps of the Riphean and Vendian terrigenous geoseismic sequences within the syneclise, and a tectonic map of the Vendian-Paleozoic structural stage of the Sayan-Yenisei syneclise. The proposed oil and gas geological zoning of the Sayan-Yenisei potential petroleum area enabled us to identify eight potential petroleum regions and perform a quantitative assessment of the hydrocarbon potential. The original in-place resources of the Sayan-Yenisei potential petroleum area are estimated to be 3 billion 231 million tons of hydrocarbon equivalent, including 3 trillion 39 billion m3 of gas and 192.7 million tons of condensate. It is shown that over next 15-20 years, up to 1 trillion m3 gas reserves can be explored in the Sayan-Yenisei potential petroleum area. It is proposed to consider the Boguchany village as a large gas conversion and helium production center.
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