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GEODYNAMICS OF THE SEDIMENTARY COVER AND OIL-AND-GAS PROSPECTS OF THE TOMSK REGION EASTERN TERRITORY

V. V. Sapyanik, E. Yu. Lapteva, E. V. Lyubutina, A. I. Nedospasov, P. I. Novikov, N. V. Petrova, A. V. Fateev, A. P. Khilko

Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk, Russia

The article deals with geodynamic processes of the plicative tectonics of the Mesozoic-Cenozoic development stage in the southeastern territory of the West Siberian hemisyneclise, which allowed scientists to significantly clarify the configuration of multi-ordinal structures, to identify the second-order negative structure in the territory of the Baraba-Pikhtovka monocline, and to offer a new view of the structural-tectonic zoning of the Tomsk region eastern territory sedimentary cover. To substantiate the prospects of Jurassic petroleum plays, their resource potential is estimated using the basin modeling method. Based on an integrated analysis of structural imagings, history of the territory tectonic development, calculated maps of effective capacities, test results and WL conclusions, 42 traps of structural, structural-lithological, structural-stratigraphic types were mapped and their assessment by the volume-statistic method by Dl category [inferred resources] was given. The results obtained significantly expand the prospects for peripheral territories of the West Siberian Plate, where it is necessary to complete regional geological exploration.

Keywords: geological model, geodynamics, zoning, oil, gas, resources, West Siberia, Paleozoic, Mesozoic, Cenozoic.

DOI 10.20403/2078-0575-2021-3-21-30

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