Geochemical technique of organic matter research in deposits enrich in kerogene (the Bazhenov Formation, West Siberia)

E. V. Kozlova, N. P. Fadeeva, G. A. Kalmykov, N. S. Balushkina, N. V. Pronina, E. N. Poludetkina, O. V. Kostenko, A. Yu Yurchenko, R. S. Borisov, A. Yu Bychkov, A. G. Kalmykov, R. A. Khamidullin, E. D. Strel’tsov

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    The international interest in shale oil has recently provoked special attention to the Russian unconventional oil-source formations, including the Bazhenov Formation of West Siberia, domanik deposits in the Volga–Ural region, and the lower Maikop Group of the Cis-Caucasus. High contents of para-autochthonous soluble organic matter (bitumen) in clayey–carbonate, clayey–siliceous, carbonate–clayey–siliceous rocks with low filtration–capacity properties results in significant uncertainties in the identification of the generation potential of organic matter (OM). Examination of a large database on the OM of the Bazhenov Formation allowed us to propose an optimum complex technique for study of the source rock potential and assessment of the amount of produced hydrocarbons in the kerogen-rich sediments. The investigations include a combination of Rock Eval pyrolysis prior to and after extraction with different solvents, the comparison of bituminological and pyrolytic characteristics, and the determination of the group composition of soluble organic matter, as well as chromatography and chromato-mass spectrometry.

    Original languageEnglish
    Pages (from-to)409-418
    Number of pages10
    JournalMoscow University Geology Bulletin
    Volume70
    Issue number6
    DOIs
    Publication statusPublished - 1 Nov 2015

    Keywords

    • bitumen (soluble organic matter)
    • kerogen
    • paraautochthonous bitumen
    • Rock-Eval pyrolysis
    • source rocks
    • the Bazhenov Formation

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