Variability in the composition of hydrocarbon compounds in the Jurassic oil-andgas-bearing strata of the Kamennaya crest of the Krasnoleninsky arch (Western Siberia)
https://doi.org/10.18599/grs.2021.2.16
Abstract
The article presents the results of hydrocarbon compounds extracted from open pores and blocked by resinous-asphaltene compounds pores in the Tutleim formation rocks (a stratigraphic analogue of the Bazhenov formation) and the underlying Jurassic deposits on the territory of the Kamennaya crest of the Krasnoleninsky arch investigation. The aim of the work was both to study the possible migration of hydrocarbons along the section and area and to assess the variability of the bitumen composition in rocks relative to the structural plan of the area of interest, along the section, as well as unconventional reservoirs. It is shown that the structural features and the assumed additional heating of the rocks lead to variety in the hydrocarbons composition not only in open, but also in blocked pores, both through the area of Tutleim formation distribution and in different intervals of one well. It was established that in the sediments organic matter, which may slightly differ in nature within the formation, can accumulate, and this leads to some differences in the generation, accumulation and migration of hydrocarbon compounds processes. It is shown that the process of migration of hydrocarbons from the underlying sediments also affects the bitumen composition in the rocks of the Tutleim formation.
About the Authors
M. S. TikhonovaRussian Federation
Margarita S. Tikhonova – Researcher in geochemistry;
Engineer of the Petroleum Geology Department
27, build. 1, Lomonosovsky ave., Moscow, 119192
A. G. Kalmykov
Russian Federation
Anton G. Kalmykov – PhD (Chemistry), Senior Researcher of the Petroleum Geology Department
1, Leninskie gory, Moscow, 119234
D. A. Ivanova
Russian Federation
Daria A. Ivanova– Researcher in geochemistry;
Engineer of the Petroleum Geology Department
27, build. 1, Lomonosovsky ave., Moscow, 119192
O. N. Vidishcheva
Russian Federation
Olesia N. Vidishcheva – Geologist
27, build. 1, Lomonosovsky ave., Moscow, 119192
I. O. Khomyachkova
Russian Federation
Inna O. Khomyachkova – Master of the Petroleum Geology Department
1, Leninskie gory, Moscow, 119234
M. A. Bolshakova
Russian Federation
Maria A. Bolshakova – PhD (Geology and Mineralogy), Senior Researcher, Petroleum Geology Department
1, Leninskie gory, Moscow, 119234
T. A. Ryazanova
Russian Federation
Tatiana A. Ryazanova – Expert in geochemistry of Department of Analytics and Systematization in Core and Reservoir Fluids Studying Laboratory
42, Maxim Gorky str., Tyumen, 625048
R. S. Sautkin
Russian Federation
Roman S. Sautkin – PhD (Geology and Mineralogy), Senior Researcher, Petroleum Geology Department
1, Leninskie gory, Moscow, 119234
G. A. Kalmykov
Russian Federation
Georgy A. Kalmykov – DSc (Geology and Mineralogy), Professor, Petroleum Geology Department
1, Leninskie gory, Moscow, 119234
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Review
For citations:
Tikhonova M.S., Kalmykov A.G., Ivanova D.A., Vidishcheva O.N., Khomyachkova I.O., Bolshakova M.A., Ryazanova T.A., Sautkin R.S., Kalmykov G.A. Variability in the composition of hydrocarbon compounds in the Jurassic oil-andgas-bearing strata of the Kamennaya crest of the Krasnoleninsky arch (Western Siberia). Georesursy = Georesources. 2021;23(2):158-169. (In Russ.) https://doi.org/10.18599/grs.2021.2.16