Oil-source correlations of the lower tertiary in the Dongtai sag of the Subei Basin

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1987 English Publisher:Springer Science and Business Media LLCJournal:Chinese Journal of Geochemistry, volume 6, pages 53-64 (issn: 1000-9426, eissn: 1993-0364,

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Authors: Fan Shanfa; Wang Benshan; Shi Jiyang; Zhang Lijie; Hong Ziqing; Lü Guoying; Lin Huayuan; +2 Authors

doi: 10.1007/bf03166670

Oil-source correlations of the lower tertiary in the Dongtai sag of the Subei Basin

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Abstract

A series of biomarkers is used to explore the bio-inputs of source rocks and oils. Oils from the Dongtai sag of the Subei Basirr are characterized by abundant gammacerane and 4-methyl steranes. Both Ef4 and Ef2 source shales contain type-II1 kerogen. Ef4 is different from Ef2 in biomarker distribution and generated oil. The former has higher Pr/Ph and 4-methyl sterane/sterane ratios, but the latter has more abundant β-carotane. The presence of immature oils and source rocks in the Hai’an depression indicates that the immature oils are of commercial value.

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Academia Sinica
Taiwan

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