Assessment of the prospects of the neocomian sediments for the presence of hydrocarbon fluid through geochemical core studies
https://doi.org/10.31660/0445-0108-2025-5-21-28
EDN: EDGGMI
Abstract
This paper presents the results of geochemical studies on core samples from Neocomian sediments located in the northern part of Western Siberia.
In traditional geological exploration of deep-submerged facilities with complex geological structures, productive intervals are often overlooked. It underscores the necessity for additional diagnostic methods.
The aim of this work is to develop a methodological model for conducting geochemical analysis of core samples to enhance the reliability of detecting valuable hydrocarbon fluids.
To achieve this, the authors of this paper selected a set of geochemical studies on core samples, including extraction-weight analysis, chromatographic analysis, and the study of deeply sorbed gases. Based on this approach, the authors developed criteria for identifying the type of reservoir fluid in the reservoir.
The conclusions regarding the fluid saturation of the studied deposits were validated by well test results, demonstrating the effectiveness of geochemical methods in exploration efforts.
Keywords
core,
oil,
gas condensate,
deeply absorbed gases,
chloroform bitumen,
chromatography,
alkanes,
arenas
About the Authors
D. A. Kobylinskiy
Industrial University of Tyumen
Russian Federation
Russian Federation
Danil A. Kobylinskiy, Senior Lecturer at the Department of Geology of Oil and Gas Fields
Tyumen
E. Yu. Neelova
Industrial University of Tyumen
Russian Federation
Russian Federation
Evgeniya Yu. Neelova, Candidate of Geology and Mineralogy, Associate Professor at the Department of Geology of Oil and Gas Fields
Tyumen
M. D. Zavatskiy
Industrial University of Tyumen
Russian Federation
Russian Federation
Mihail D. Zavatskiy, Candidate of Geology and Mineralogy, Head of the Department of Geology of Oil and Gas Fields
Tyumen
References
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Review
For citations:
Kobylinskiy D.A., Neelova E.Yu., Zavatskiy M.D. Assessment of the prospects of the neocomian sediments for the presence of hydrocarbon fluid through geochemical core studies. Oil and Gas Studies. 2025;(5):21-28. (In Russ.) https://doi.org/10.31660/0445-0108-2025-5-21-28. EDN: EDGGMI
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