Characteristic features of the hydrocarbon composition of Paleozoic oils from the southeast of Western Siberia

D. Yu Chirkova, N. A. Krasnoyarova, O. V. Serebrennikova, Wang Khai Wu

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    The biomarker composition of eight samples of Western Siberia Paleozoic oils collected from deposits dated to the Pudinskii megaswell, the Nyurol'ka depression, their junction zone, and the Krasnoleninskii dome has been studied. Several indicators of oil composition have been identified, whose value varies depending on the geological structure that accommodates the oilfield. These differences may be evidence for different local environments of the formation of petroleum hydrocarbons. According to data on the composition of aromatic hydrocarbons, the original organic matter (OM) of all the test oils was deposited in a marine environment, and the OM of the Nyurol'ka through and the junction zone accumulated in the photic zone euxinia, as evidenced by the presence of aryl isoprenoids. Data on the composition of saturated hydrocarbons suggest brackish, littoral, suboxidizing sedimentary environment and marine algae as the main biological producer.

    Original languageEnglish
    Pages (from-to)397-404
    Number of pages8
    JournalPetroleum Chemistry
    Volume54
    Issue number6
    DOIs
    Publication statusPublished - 2014

    Keywords

    • aryl isoprenoids
    • Paleozoic oils
    • saturated-hydrocarbon composition
    • Western Siberia

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Fuel Technology
    • Chemical Engineering(all)
    • Chemistry(all)
    • Geochemistry and Petrology

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