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Isotopic-geochemical peculiarities of distribution of gas hydrocarbons in the Bazhenov formation section (South part of the Western Siberia)

E.A. Krasnova, A.Yu. Yurchenko, A.G. Kalmykov, M.M.Fomina

Original article

DOI https://doi.org/10.18599/grs.2019.2.153-158

153-158
rus.

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In this work we describe the distribution of stable carbon isotopes in hydrocarbon gases from four wells located in the southern and central parts of the Western Siberia. The main goal was to understand the influence of the lithological composition and geological settings on isotopic composition of gases and their formation. Two genetically different groups of hydrocarbon gases were identified based on the author’s research, as well as analysis of archival and literature materials on the isotope composition of hydrocarbons. We estimated the close relationship between the main factors of the migration, degree of metamorphism of organic matter and the isotope composition of hydrocarbon gases produced by the Bazhenov formation.

 

Bazhenov formation, carbon isotope composition, unconventional reservoir, gaseous hydrocarbons, secondary alteration

 

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Elizaveta A. Krasnova
Lomonosov Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry of the Russian Academу of Sciences
1, Leninskie gory, Moscow, 119234, Russian Federation
 
Anna Yu. Yurchenko
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation
 
Anton G. Kalmykov
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation
 
Maria M. Fomina
Lomonosov Moscow State University
1, Leninskie gory, Moscow, 119234, Russian Federation
 

For citation:

Krasnova E.A., Yurchenko A.Yu., Kalmykov A.G., Fomina M.M. (2019). Isotopic-geochemical peculiarities of the distribution of gas hydrocarbons in the Bazhenov formation section (South part of the Western Siberia). Georesursy = Georesources, 21(2), pp. 153-158. DOI: https://doi. org/10.18599/grs.2019.2.153-158