Characteristics of Sources of Oils of Romashkino Field by Composition of Saturated and Aromatic Biomarkers


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Composition of saturated biomarkers revealed the presence of at least two sources of oils of the Romashkino field with the monotypic conditions. All the studied oils are characterized by presence of a large number of components—anoxia testifiers in the photic layer of sedimentation basin in the fractions of aromatic compounds. These are products full or partial hydrogenation, cyclization and degradation of polyene compounds. Total content of this group of compounds is measured in these fractions for the first time. It is shown that the total content of the anoxia testifiers is high. Thus the specific characteristic of oil source rocks is defined—their formation in the conditions of existence of anoxia in the photic layer during the entire accumulation time of initial organic matter, and the thickness of the layer infected with hydrogen sulphide was significant. On the basis of composition and content of the anoxia testifiers it is shown that the hydrogenation of initial polyenes prevailed in diagenesis over the processes of cyclization.

作者简介

M. Smirnov

Federal State Budgetary Institution of Science of the Order of the Red Banner of Labor A.V. Topchiev Institute of Petrochemical Synthesis RAS

编辑信件的主要联系方式.
Email: m-smirnov@yandex.ru
俄罗斯联邦, Moscow, 119991

E. Poludetkina

Lomonosov Moscow State University Faculty of Geology

Email: m-smirnov@yandex.ru
俄罗斯联邦, Moscow, 119991

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