Development of a Complex Geochemical Criterion that Determines the Distribution of the Total Oil and Gas Content of the Solikamsk Depression section

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Abstract

The results of a probabilistic-statistical assessment of the geochemical characteristics of the section of the main oil and gas source strata of the Solikamsk depression and their relationship with the total oil and gas content of the section are presented. For comprehensive accounting and identification of the optimal combination of geochemical parameters that determine the oil and gas content distribution, a complex probabilistic criterion has been developed for each oil and gas complex – Rcomp. Statistical analysis confirmed that the Upper Devonian-Tournaisian deposits in most of the Solikamsk Depression territory were in the main phase of oil formation, and there the maximum mobile bitumen formation occurred, including hydrocarbons, which took an active part in the total oil and gas content formation of the Solikamsk Depression. A fundamentally different nature of changes in the values of the developed complex geochemical criterion has been established in depth for wells located within the oil and gas bearing contours and beyond them. The most informative criterion indicating the relationship between DOM and the total oil and gas content of a section is the bitumen coefficient β.

Keywords

oil and gas potential forecastoil and gas bearing complexprobabilistic-statistical modelsprobabilitySolikamsk depressionPerm KraiKama-Kinel trough systemdispersed organic mattergeochemical indicatorsdomanik faciesbitumen coefficient βcomplex criterion

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Article information

Published
28 June 2024
Issue date
28 June 2024
Issue
Vol. 24, No. 2 (2024)
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