A model of the activity of hydrothermal-metasomatic systems confined to certain structural elements is proposed in the present article. The model is based on the analysis of a large volume of traditional studies: measurements of porosity coefficients, permeability, pyrolytic measurements - together with specific measurements: isotopic composition of carbonate rocks, temperature of homogenization of gas-liquid inclusions, studies of the composition of rocks with a scanning electron microscope, a description of petrographic thin sections. The model allows to generalize the results of the impact of hydrothermal-metasomatic systems on the reservoir properties of the rocks of the Bazhenov-Abalak complex: constructive – leaching processes and increasing reservoir properties, and destructive – massive mineral formation that fills the pore space, up to the formation of secondary seals.
West Siberian plate, hydrothermal activity, Bazhenov-Abalak complex, catagenesis, metasomatism, isotope studies, gas-liquid inclusions
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Evgenia V. Karpova
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation
e-mail: karpoff_2002@mail.ru
Aleksey O. Khotylev
Lomonosov Moscow State University.
1, Leninskie gory, Moscow, 119234, Russian Federation
Ekaterina A. Manuilova
National Intellectual Development Foundation
27, build. 1, Lomonosovsky ave., Moscow, 119192, Russian Federation
Aleksandr A. Mayorov
Lomonosov Moscow State University.
1, Leninskie gory, Moscow, 119234, Russian Federation
Elizaveta A. Krasnova
Lomonosov Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academy of Sciences
1, Leninskie gory, Moscow, 119234, Russian Federation
Oleg V. Khotylev
National Intellectual Development Foundation
27, build. 1, Lomonosovsky ave., Moscow, 119192, Russian Federation
Natalia S. Balushkina
Petroleum Geology Department, Lomonosov Moscow State University.
1, Leninskie gory, Moscow, 119234, Russian Federation
Georgy A. Kalmykov
Petroleum Geology Department, Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation
Karpova E.V., Khotylev A.O., Manuilova E.A., Mayorov A.A., Krasnova E.A., Khotylev O.V., Balushkina N.S., Kalmykov G.A., Kalmykov A.G. (2021). Hydrothermal-metasomatic systems as the most important factor for the formation of elements of the oil and gas-bearing complex in the Bazhenov-Abalak sediments. Georesursy = Georesources, 23(2), pp. 142–151. DOI: https://doi.org/10.18599/grs.2021.2.14