Geochemical research
Section editor – PhD in geology and mineralogy Bazhenova T.K.
Article # 13_2014 submitted on 01/15/2014 displayed on website on 03/13/2014
25 p.
pdf  Geochemistry of organic matter and oil-generation potential of the Lower Jurassic Togur Formation (south-east of Western Siberia)
The paper presents the results of detailed geochemical studies of organic matter of the Lower Toarcian deposits accumulated in separate sedimentation basins - Verkhneketskiy, Ust-Tymsky, Bakcharsky, Nyurol’sky, Teguldetsky and Koltogorsky. It is shown that the organic matter has mixed origin with the predominant role of higher terrestrial vegetation, and the ratio between humic (terragene) and sapropel (aquagene) components vary depending on the borehole as well as on the area of sedimentary basins. On the basis of research results the Lower Toarcian deposits potential in the western studied regions the oil-generation potential of Togur Formation is higher; the eastern regions of the southern part of Western Siberia, in which organic matter is immature (Verhneketsky and Teguldetsky basins) are defined as unpromising in terms of oil and gas.

Key words: organic matter, hydrocarbons-biomarkers, bitumoid, oil, Early Toarcian, Western Siberia.
article citation Kostyreva E.A., Moskvin V.I., Yan P.A. Geokhimiya organicheskogo veshchestva i neftegeneratsionnyy potentsial nizhneyurskoy togurskoy svity (yugo-vostok Zapadnoy Sibiri) [Geochemistry of organic matter and oil-generation potential of the Lower Jurassic Togur Formation (south-east of Western Siberia)]. Neftegazovaya Geologiya. Teoriya I Praktika, 2014, vol. 9, no. 1, available at: http://www.ngtp.ru/rub/1/13_2014.pdf
DOI https://doi.org/10.17353/2070-5379/13_2014
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