SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE

The relevance of the research is caused by the need to expand the resource base in the fields of the Baykit anteclise. Occurrence of two types of oils may be caused by additional source, which increases the prospects of the area. However, variations in the composition of oils may also be associated...

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Main Author: Irina D. Timoshina
Format: Article
Language:Russian
Published: Tomsk Polytechnic University 2020-01-01
Series:Известия Томского политехнического университета: Инжиниринг георесурсов
Subjects:
Online Access:http://izvestiya.tpu.ru/archive/article/view/2459/2153
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author Irina D. Timoshina
author_facet Irina D. Timoshina
author_sort Irina D. Timoshina
collection DOAJ
description The relevance of the research is caused by the need to expand the resource base in the fields of the Baykit anteclise. Occurrence of two types of oils may be caused by additional source, which increases the prospects of the area. However, variations in the composition of oils may also be associated with high catagenesis and migration effects; therefore, an assessment of the influence of these factors on composition of oils is necessary. The aim of research is to determine the influence of genetic, catagenetic and migration factors on biomarker hydrocarbons in the oils of the Baykit anteclise, to identify areas of preferential influence of each of them. Objects of the research are the oils of the Baykit anteclise. Methods: comparison of the characteristics of biomarker hydrocarbons obtained using gas chromarography-mass spectrometry in saturated and aromatic fractions of oils, assessment of the impact on their composition of the contribution from different source formations, catagenesis and migration, grouping of oils by the predominance of the influence of these factors. Results. The author has characterized biomarker hydrocarbons of saturated and aromatic fractions of the oils from Riphean and Vendian collectors of the Baykit anteclise. Based on the characteristics, which differ from the previously obtained characteristics of the most common and typical ancient oils of the Siberian platform, the author made a conclusion on the impact of the contribution from the Upper Riphean Iremekensky stratum in two oils in the east of the Kuyumbinskoye field, as well as the contribution of probably Vendian oil source formations in oils from Vendian collectors. The main factor in the formation of the composition of most oils of the Kuyumbinskoe field was high catagenesis, enhanced by migration effects towards the enrichment of low molecular weight compounds. Probably, several oils are a mixture of two components with different catagenesis, moreover, more transformed component is enriched with saturated, including cyclic compounds, and less transformed – with aromatic compounds.
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spelling doaj.art-efd7ce094d904091bc57911b52193cdd2022-12-22T00:26:27ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302020-01-01331118419410.18799/24131830/2020/1/2459SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISEIrina D. Timoshina0Institute of Petroleum Geology and Geophysics SB RASThe relevance of the research is caused by the need to expand the resource base in the fields of the Baykit anteclise. Occurrence of two types of oils may be caused by additional source, which increases the prospects of the area. However, variations in the composition of oils may also be associated with high catagenesis and migration effects; therefore, an assessment of the influence of these factors on composition of oils is necessary. The aim of research is to determine the influence of genetic, catagenetic and migration factors on biomarker hydrocarbons in the oils of the Baykit anteclise, to identify areas of preferential influence of each of them. Objects of the research are the oils of the Baykit anteclise. Methods: comparison of the characteristics of biomarker hydrocarbons obtained using gas chromarography-mass spectrometry in saturated and aromatic fractions of oils, assessment of the impact on their composition of the contribution from different source formations, catagenesis and migration, grouping of oils by the predominance of the influence of these factors. Results. The author has characterized biomarker hydrocarbons of saturated and aromatic fractions of the oils from Riphean and Vendian collectors of the Baykit anteclise. Based on the characteristics, which differ from the previously obtained characteristics of the most common and typical ancient oils of the Siberian platform, the author made a conclusion on the impact of the contribution from the Upper Riphean Iremekensky stratum in two oils in the east of the Kuyumbinskoye field, as well as the contribution of probably Vendian oil source formations in oils from Vendian collectors. The main factor in the formation of the composition of most oils of the Kuyumbinskoe field was high catagenesis, enhanced by migration effects towards the enrichment of low molecular weight compounds. Probably, several oils are a mixture of two components with different catagenesis, moreover, more transformed component is enriched with saturated, including cyclic compounds, and less transformed – with aromatic compounds.http://izvestiya.tpu.ru/archive/article/view/2459/2153baykit antecliseripheanvendianbiomarkers hydrocarbonssources of oilscatagenesismigration
spellingShingle Irina D. Timoshina
SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE
Известия Томского политехнического университета: Инжиниринг георесурсов
baykit anteclise
riphean
vendian
biomarkers hydrocarbons
sources of oils
catagenesis
migration
title SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE
title_full SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE
title_fullStr SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE
title_full_unstemmed SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE
title_short SATURATED AND AROMATIC BIOMARKER HYDROCARBONS IN OILS OF THE BAYKIT ANTECLISE
title_sort saturated and aromatic biomarker hydrocarbons in oils of the baykit anteclise
topic baykit anteclise
riphean
vendian
biomarkers hydrocarbons
sources of oils
catagenesis
migration
url http://izvestiya.tpu.ru/archive/article/view/2459/2153
work_keys_str_mv AT irinadtimoshina saturatedandaromaticbiomarkerhydrocarbonsinoilsofthebaykitanteclise