Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin

The Upper Paleozoic coal measure strata in the Southern North China Basin have good potential for unconventional oil and gas exploration. However, there has been no systematic evaluation of potential source rock in this area; this affects the estimation of potential resources and the choice of explo...

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Autores principales:	Sun Fengyu, Cao Gaoshe, Xing Zhou, Yu Shuangjie, Fang Bangbang
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	hydrocarbon generation potential upper paleozoic source rocks evaluation southern north china basin Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/39294f55fc294707b5f403b0e11cc18e
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id	oai:doaj.org-article:39294f55fc294707b5f403b0e11cc18e
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spelling	oai:doaj.org-article:39294f55fc294707b5f403b0e11cc18e2021-12-05T14:10:48ZCharacteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin2391-544710.1515/geo-2020-0221https://doaj.org/article/39294f55fc294707b5f403b0e11cc18e2021-03-01T00:00:00Zhttps://doi.org/10.1515/geo-2020-0221https://doaj.org/toc/2391-5447The Upper Paleozoic coal measure strata in the Southern North China Basin have good potential for unconventional oil and gas exploration. However, there has been no systematic evaluation of potential source rock in this area; this affects the estimation of potential resources and the choice of exploratory target layers. In this study, full core holes ZK0901 and ZK0401, which perfectly reveal Upper Paleozoic strata in the study area, systematically collected and analyzed the samples for total organic carbon, rock pyrolysis, chloroform bitumen “A,” organic maceral, vitrinite reflectance, and kerogen carbon isotopes. The results showed that in addition to coal rocks, mudstones and carbonate rocks are also potential source rocks in the Upper Paleozoic strata. Vertically, the source rocks are continuous in Taiyuan Formation, the lower part of Shanxi Formation, and Lower Shihezi Formation. The organic matter type in the Upper Paleozoic coal rocks and mudstone source rock belong to type III or II. This phenomenon is mainly attributed to the special transgressive–regressive sedimentary environment of the carbonate rocks. The higher degree of thermal evolution in the Upper Paleozoic source rocks may be related to the structure or a higher paleogeothermal gradient in this area. The coal layer and its upper and lower mudstone of the Shanxi Formation and Lower Shihezi Formation are the main target layers of unconventional oil and gas exploration. The results from this study can be used as a reference for the study on potential source rock for unconventional oil and gas exploration in the Southern North China Basin.Sun FengyuCao GaosheXing ZhouYu ShuangjieFang BangbangDe Gruyterarticlehydrocarbon generation potentialupper paleozoicsource rocksevaluationsouthern north china basinGeologyQE1-996.5ENOpen Geosciences, Vol 13, Iss 1, Pp 294-309 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hydrocarbon generation potential upper paleozoic source rocks evaluation southern north china basin Geology QE1-996.5
spellingShingle	hydrocarbon generation potential upper paleozoic source rocks evaluation southern north china basin Geology QE1-996.5 Sun Fengyu Cao Gaoshe Xing Zhou Yu Shuangjie Fang Bangbang Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin
description	The Upper Paleozoic coal measure strata in the Southern North China Basin have good potential for unconventional oil and gas exploration. However, there has been no systematic evaluation of potential source rock in this area; this affects the estimation of potential resources and the choice of exploratory target layers. In this study, full core holes ZK0901 and ZK0401, which perfectly reveal Upper Paleozoic strata in the study area, systematically collected and analyzed the samples for total organic carbon, rock pyrolysis, chloroform bitumen “A,” organic maceral, vitrinite reflectance, and kerogen carbon isotopes. The results showed that in addition to coal rocks, mudstones and carbonate rocks are also potential source rocks in the Upper Paleozoic strata. Vertically, the source rocks are continuous in Taiyuan Formation, the lower part of Shanxi Formation, and Lower Shihezi Formation. The organic matter type in the Upper Paleozoic coal rocks and mudstone source rock belong to type III or II. This phenomenon is mainly attributed to the special transgressive–regressive sedimentary environment of the carbonate rocks. The higher degree of thermal evolution in the Upper Paleozoic source rocks may be related to the structure or a higher paleogeothermal gradient in this area. The coal layer and its upper and lower mudstone of the Shanxi Formation and Lower Shihezi Formation are the main target layers of unconventional oil and gas exploration. The results from this study can be used as a reference for the study on potential source rock for unconventional oil and gas exploration in the Southern North China Basin.
format	article
author	Sun Fengyu Cao Gaoshe Xing Zhou Yu Shuangjie Fang Bangbang
author_facet	Sun Fengyu Cao Gaoshe Xing Zhou Yu Shuangjie Fang Bangbang
author_sort	Sun Fengyu
title	Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin
title_short	Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin
title_full	Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin
title_fullStr	Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin
title_full_unstemmed	Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin
title_sort	characteristics and evaluation of the upper paleozoic source rocks in the southern north china basin
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/39294f55fc294707b5f403b0e11cc18e
work_keys_str_mv	AT sunfengyu characteristicsandevaluationoftheupperpaleozoicsourcerocksinthesouthernnorthchinabasin AT caogaoshe characteristicsandevaluationoftheupperpaleozoicsourcerocksinthesouthernnorthchinabasin AT xingzhou characteristicsandevaluationoftheupperpaleozoicsourcerocksinthesouthernnorthchinabasin AT yushuangjie characteristicsandevaluationoftheupperpaleozoicsourcerocksinthesouthernnorthchinabasin AT fangbangbang characteristicsandevaluationoftheupperpaleozoicsourcerocksinthesouthernnorthchinabasin
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Characteristics and evaluation of the Upper Paleozoic source rocks in the Southern North China Basin

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