Characteristics and origin of desorption gas of a transitional shale: A case study from the Lower Permian Taiyuan Formation shale, Ordos Basin, northern China

doi:10.1080/10916466.2017.1400560

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	Characteristics and origin of desorption gas of a transitional shale: A case study from the Lower Permian Taiyuan Formation shale, Ordos Basin, northern China
	Xu, Liang 1,2; Wang, Yongli 1; Wei, Zhifu 1; Wu, Baoxiang 1; Zhang, Mingfeng 1; Wang, Gen 1; Sun, Zepeng 1,2
刊名	PETROLEUM SCIENCE AND TECHNOLOGY
	2017
卷号	35 期号:24 页码:2262-2268
关键词	Marine-continental Transitional Shale Desorbed Gas Gas Origin Taiyuan Formation Ordos Basin
ISSN号	1091-6466
DOI	10.1080/10916466.2017.1400560
文献子类	Article
英文摘要	In China, marine shale and terrestrial shale have achieved significant breakthroughs. Comparing with marine shale and terrestrial shale, the research and exploration of transitional shale are still in the preliminary stage, and the content and origin of desorbed gas from transitional shales are poorly documented, thus limiting the understanding of gas generation and potential play elements. Geochemical characteristics of desorbed gas, including content and origin, are analyzed from 9 core samples of the Lower Taiyuan Formation shale from well SSL23 in the Ordos Basin, northern China. The results show that the Taiyuan Formation shale in the study area are characterized by high total organic carbon content of 2.70-9.00%, type III organic matter, and high T-max ranging from 461 to 520 degrees C. The desorbed gas content of the shale samples varies from 0.79 to 2.37m(3)/t, with an average of 1.35m(3)/t. The gases are dominated by hydrocarbons (83.72-98.62%), with small amounts of non-hydrocarbons (1.38-16.28%) and the methane is the dominant component of the desorbed gases. The carbon isotope C-13(1) ranges from -43.9 to -26.3 parts per thousand, the C-13(2) ranges from -27.2 to -23.1 parts per thousand and the C-13(3) ranges from -25.3 to -11.6 parts per thousand, respectively. The Whiticar chart and the plot of C-13(1)-C-13(2) suggest that gases released from the Taiyuan Formation shale are thermogenic in origin and possibly coal-derived.
WOS关键词	MISSISSIPPIAN BARNETT ; CARBON ; METHANE ; MARINE
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000418600700006
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93156]
专题	地质与地球物理研究所_兰州油气中心
通讯作者	Wang, Yongli; Wei, Zhifu
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources, Gansu Prov Key Lab Petr Resources Res, Lanzhou, Gansu, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xu, Liang,Wang, Yongli,Wei, Zhifu,et al. Characteristics and origin of desorption gas of a transitional shale: A case study from the Lower Permian Taiyuan Formation shale, Ordos Basin, northern China[J]. PETROLEUM SCIENCE AND TECHNOLOGY,2017,35(24):2262-2268.
APA	Xu, Liang.,Wang, Yongli.,Wei, Zhifu.,Wu, Baoxiang.,Zhang, Mingfeng.,...&Sun, Zepeng.(2017).Characteristics and origin of desorption gas of a transitional shale: A case study from the Lower Permian Taiyuan Formation shale, Ordos Basin, northern China.PETROLEUM SCIENCE AND TECHNOLOGY,35(24),2262-2268.
MLA	Xu, Liang,et al."Characteristics and origin of desorption gas of a transitional shale: A case study from the Lower Permian Taiyuan Formation shale, Ordos Basin, northern China".PETROLEUM SCIENCE AND TECHNOLOGY 35.24(2017):2262-2268.