Typification of oils in the Timan-Pechora province according to the composition of hydrocarbon biomarkers (steranes and terpanes)

Distinctive compositional features of cyclic saturated hydrocarbon biomarkers have been established in oils from the main petroliferous lithostratigraphic complexes of various structural zones in the Timan-Pechora petroliferous province (TPPP). Four geochemical families (types) of oils in TPPP are r...

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Bibliographic Details
Published inGeochemistry international Vol. 44; no. 3; pp. 296 - 307
Main Authors Gordadze, G. N., Tikhomirov, V. I.
Format Journal Article
LanguageEnglish
Published Silver Spring Springer Nature B.V 01.03.2006
Subjects
Biomarkers
Geochemistry
Hydrocarbons
Saturated hydrocarbons
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Summary:Distinctive compositional features of cyclic saturated hydrocarbon biomarkers have been established in oils from the main petroliferous lithostratigraphic complexes of various structural zones in the Timan-Pechora petroliferous province (TPPP). Four geochemical families (types) of oils in TPPP are recognized based on the variations in the geochemical parameters of steranes and terpanes including sterane ratios C^sub 27^/C^sub 29^ and C^sub 28^/C^sub 29^, K^sup 1^ mat and K^sup 2^ mat, diasterane/regular sterane, pregnane (C^sub 21-22^)/sterane (C^sub 21-22^ + C^sub 27-29^), as well as terpane Ts/Tm parameters, adiantane C^sub 29^/hopane C^sub 30^, neoadiantane/adiantane, tryciclic terpane/pentacyclic terpane, hopane/sum of C^sub 29^ steranes, etc. The distribution of various types of oil in the sedimentary sequence of TPPP makes it possible to infer source rocks for each of the four selected types.[PUBLICATION ABSTRACT]
ISSN:0016-7029
1556-1968
DOI:10.1134/S0016702906030074