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DOI	10.1016/j.egyr.2021.06.056
	The geochemical and pore characteristics of a typical marine-continental transitional gas shale: A case study of the Permian Shanxi Formation on the eastern margin of the Ordos Basin
	Qiu, Zhen; Song, Dongjun; Zhang, Leifu; Zhang, Qin; Zhao, Qun; Wang, Yuman; Liu, Hanlin; Liu, Dexun; Li, Shuxin; Li, Xingtao
通讯作者	Qiu, Z (通讯作者)，China Natl Petr Corp, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China. ; Qiu, Z (通讯作者)，Natl Energy Shale Gas Res & Dev Expt Ctr, Beijing 100083, Peoples R China. ; Song, DJ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	2352-4847
起始页码	3726
结束页码	3736
卷号	7
英文摘要	The marine-continental transitional Permian Shanxi Formation, which is located on the eastern margin of the Ordos Basin, is expected to be another set of economic gas shale for exploration and development in China. In this study, geochemical methods, low-pressure gas adsorption, high-pressure mercury intrusion, and field emission scanning electron microscopy (FE-SEM) imaging were performed to investigate the pore structure characteristics of the second member of the Permian Shanxi gas shale. The results show that the average TOC content of the shale is 5.90%, the average thermal maturity is 2.22% R-o, and these organic-rich shales are enriched in clay minerals. Mesopores are the predominant pore type in these shales, and have slit-like shapes. FE-SEM analysis reveals that the interparticle pores associated with clay minerals are more developed than organic-hosted pores, while a few SEM-invisible micropores may be related to the aromatic structures of kerogen in the shale. Pore development in the studied samples is influenced by the TOC and clay mineral contents. The development of organic-hosted pores in the shale shows obvious differences when compared to representative marine gas shales worldwide, which are ascribed to the differences in kerogen types. Nevertheless, the development of micropores and mesopores in the samples is comparable to that of marine shales, which indicates the presence of qualified space for gas storage in the studied shale. This study will provide crucial theoretical guidance for determining of sweet spots and for the further exploration and development of the transitional shale gas. (C) 2021 Published by Elsevier Ltd.
关键词	SICHUAN BASIN FRACTAL CHARACTERISTICS HYDROCARBON GENERATION CLAY-RICH SYSTEMS AREA INSIGHTS POROSITY
英文关键词	Marine-continental transitional shale gas; Ordos basin; The second member of the Shanxi formation; Clay mineral; Organic pore
语种	英语
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:000701762900013
来源期刊	ENERGY REPORTS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254406
作者单位	[Qiu, Zhen; Zhang, Leifu; Zhang, Qin; Zhao, Qun; Wang, Yuman; Liu, Hanlin; Liu, Dexun; Li, Shuxin; Li, Xingtao] China Natl Petr Corp, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China; [Qiu, Zhen; Zhang, Leifu; Zhang, Qin; Zhao, Qun; Wang, Yuman; Liu, Hanlin; Liu, Dexun; Li, Shuxin; Li, Xingtao] Natl Energy Shale Gas Res & Dev Expt Ctr, Beijing 100083, Peoples R China; [Song, Dongjun] Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Peoples R China; [Song, Dongjun] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Zhen,Song, Dongjun,Zhang, Leifu,et al. The geochemical and pore characteristics of a typical marine-continental transitional gas shale: A case study of the Permian Shanxi Formation on the eastern margin of the Ordos Basin[J]. 中国科学院西北生态环境资源研究院,2021,7.
APA	Qiu, Zhen.,Song, Dongjun.,Zhang, Leifu.,Zhang, Qin.,Zhao, Qun.,...&Li, Xingtao.(2021).The geochemical and pore characteristics of a typical marine-continental transitional gas shale: A case study of the Permian Shanxi Formation on the eastern margin of the Ordos Basin.ENERGY REPORTS,7.
MLA	Qiu, Zhen,et al."The geochemical and pore characteristics of a typical marine-continental transitional gas shale: A case study of the Permian Shanxi Formation on the eastern margin of the Ordos Basin".ENERGY REPORTS 7(2021).