Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)

Relevance. The Middle Jurassic carbonaceous deposits of the Ulug-Khem basin (Republic of Tuva, Russia) are an available for studying stratigraphic analogue of the source rocks of the oil and gas basins of China (Xishanyao formation J2x) and Western Siberia (Tyumen formation J2tm). The study of thei...

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Main Authors: Solangy A. Ondar, Dmitry A. Bushnev, Natalia A. Smirnova
Format: Article
Language:Russian
Published: Tomsk Polytechnic University 2025-01-01
Series:Известия Томского политехнического университета: Инжиниринг георесурсов
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Online Access:https://izvestiya.tpu.ru/archive/article/view/4671
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author Solangy A. Ondar
Dmitry A. Bushnev
Natalia A. Smirnova
author_facet Solangy A. Ondar
Dmitry A. Bushnev
Natalia A. Smirnova
author_sort Solangy A. Ondar
collection DOAJ
description Relevance. The Middle Jurassic carbonaceous deposits of the Ulug-Khem basin (Republic of Tuva, Russia) are an available for studying stratigraphic analogue of the source rocks of the oil and gas basins of China (Xishanyao formation J2x) and Western Siberia (Tyumen formation J2tm). The study of their generation properties will allow us to predict the distribution zones of coal-bearing source rocks in adjacent poorly studied areas. Aim and methods. Assessment of the hydrocarbon potential of the Ulug-Khem basin coals based on the results of Rock-Eval pyrolysis. Results. According to pyrolysis data the Middle Jurassic coals of the Ulug-Khem basin have significant hydrocarbon potential. Kerogen is represented by a mixture of types II and III, vitrinite and liptinite in different proportions. The liquid and gaseous hydrocarbons generation potential of coals from the Mezhegey and Elegest coal fields has been mostly realized. The amount of hydrocarbons that could have been produced by the coals reaches very high values – 100–170 mg HC/g of rock. Comparison of the Ulug-Khem basin coals and the Middle Jurassic source rocks of Western Siberia and a number of basins in China shows the similarity of their organic matter. The hydrocarbon generation potential of the organic matter of the Middle Jurassic coals and their analogues can be realized in the sedimentary basins of Mongolia.
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institution Kabale University
issn 2500-1019
2413-1830
language Russian
publishDate 2025-01-01
publisher Tomsk Polytechnic University
record_format Article
series Известия Томского политехнического университета: Инжиниринг георесурсов
spelling doaj-art-34a581f9673942569f9517a13fb1679c2025-02-08T02:37:43ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302025-01-01336110.18799/24131830/2025/1/4671Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)Solangy A. OndarDmitry A. Bushnev0Natalia A. Smirnova1Institute of Geology, Komi Scientific CenterNational Research Tomsk Polytechnic University Relevance. The Middle Jurassic carbonaceous deposits of the Ulug-Khem basin (Republic of Tuva, Russia) are an available for studying stratigraphic analogue of the source rocks of the oil and gas basins of China (Xishanyao formation J2x) and Western Siberia (Tyumen formation J2tm). The study of their generation properties will allow us to predict the distribution zones of coal-bearing source rocks in adjacent poorly studied areas. Aim and methods. Assessment of the hydrocarbon potential of the Ulug-Khem basin coals based on the results of Rock-Eval pyrolysis. Results. According to pyrolysis data the Middle Jurassic coals of the Ulug-Khem basin have significant hydrocarbon potential. Kerogen is represented by a mixture of types II and III, vitrinite and liptinite in different proportions. The liquid and gaseous hydrocarbons generation potential of coals from the Mezhegey and Elegest coal fields has been mostly realized. The amount of hydrocarbons that could have been produced by the coals reaches very high values – 100–170 mg HC/g of rock. Comparison of the Ulug-Khem basin coals and the Middle Jurassic source rocks of Western Siberia and a number of basins in China shows the similarity of their organic matter. The hydrocarbon generation potential of the organic matter of the Middle Jurassic coals and their analogues can be realized in the sedimentary basins of Mongolia. https://izvestiya.tpu.ru/archive/article/view/4671coalpyrolysisoil and gas generation potential of coalsthe Middle Jurassickerogen
spellingShingle Solangy A. Ondar
Dmitry A. Bushnev
Natalia A. Smirnova
Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)
Известия Томского политехнического университета: Инжиниринг георесурсов
coal
pyrolysis
oil and gas generation potential of coals
the Middle Jurassic
kerogen
title Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)
title_full Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)
title_fullStr Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)
title_full_unstemmed Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)
title_short Oil and gas generation potential of the Middle Jurassic coals of the Ulug-Khem Basin (South Siberia, Russia)
title_sort oil and gas generation potential of the middle jurassic coals of the ulug khem basin south siberia russia
topic coal
pyrolysis
oil and gas generation potential of coals
the Middle Jurassic
kerogen
url https://izvestiya.tpu.ru/archive/article/view/4671
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AT dmitryabushnev oilandgasgenerationpotentialofthemiddlejurassiccoalsoftheulugkhembasinsouthsiberiarussia
AT nataliaasmirnova oilandgasgenerationpotentialofthemiddlejurassiccoalsoftheulugkhembasinsouthsiberiarussia