气候变化领域集成服务门户(CCPortal): Occurrence State of Soluble Organic Matter in Shale Oil Reservoirs from the Upper Triassic Yanchang Formation in the Ordos Basin, China: Insights from Multipolarity Sequential Extraction

CCPortal

DOI	10.1007/s11053-021-09959-6
	Occurrence State of Soluble Organic Matter in Shale Oil Reservoirs from the Upper Triassic Yanchang Formation in the Ordos Basin, China: Insights from Multipolarity Sequential Extraction
	Li, Shutong; Li, Shixiang; Guo, Ruiliang; Zhou, Xinping; Wang, Yang; Chen, Junlin; Zhang, Jiaqiang; Hao, Lewei; Ma, Xiaofeng; Qiu, Junli
通讯作者	Guo, RL (通讯作者)，Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China. ; Guo, RL (通讯作者)，Xian Shiyou Univ, Shaanxi Key Lab Petr Accumulat Geol, Xian 710065, Peoples R China. ; Wang, Y (通讯作者)，Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China.
发表日期	2021
ISSN	1520-7439
EISSN	1573-8981
起始页码	4379
结束页码	4402
卷号	30 期号:6
英文摘要	Quantitative characterization of different occurrence states of soluble organic matter is the basis and key for shale oil resource evaluation and movable oil and producibility assessment. A series of integrated methods, including basic geochemistry, X-ray diffraction, multipolarity sequential extraction and chromatographic analysis were conducted on 15 Ch-7(3) Triassic Yanchang Formation samples, which included four kinds of lithology, from well CY-1 in the Huachi area, Ordos Basin, to characterize quantitatively the content and components of soluble organic matter in different occurrence states, evaluate shale oil mobility and recoverable potential, and analyse constraints and controlling factors. The results show that, as the main reservoir type of shale oil, residual hydrocarbon contents in black shale (BS), fine sandstone (FS), muddy siltstone (MS) and dark mudstone (DM) decreased sequentially. In DM and BS, medium and heavy components of adsorbed and miscible kerogen and mineral surface adsorption hydrocarbons were dominant, while the proportion of free and fracturing free hydrocarbons that were mainly composed of light components was larger in MS and FS. The movable hydrocarbon contents of the four lithologies were FS > MS > BS > DM. The brittleness index, TOC content and (Sat + Aro)/(Res + Asp) ratios were correlated positively with shale oil mobility. Clay minerals were basically inversely proportional to movable hydrocarbon content, while chlorite can improve it to some extent. MS and FS have great potential for shale oil exploitation under horizontal well volume fracturing technology, while the relatively low brittle mineral content and movable hydrocarbon content as well as high clay mineral content may limit the artificial fracturing exploitation effect of DM and BS. This study provides new revelation for the evaluation of physical status, mobility and producibility of shale oil.
关键词	CRETACEOUS QINGSHANKOU FORMATION SOUTHERN SONGLIAO BASIN BOHAI BAY BASIN 1ST MEMBER LACUSTRINE SHALE GEOLOGICAL CHARACTERISTICS SHAHEJIE FORMATION GULONG SAG PETROLEUM ENRICHMENT
英文关键词	Moveable hydrocarbons; Sequential extraction; Yanchang Formation; Ordos Basin; Shale oil; Soluble organic matter
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000707874500001
来源期刊	NATURAL RESOURCES RESEARCH
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/254820
作者单位	[Li, Shutong; Chen, Junlin; Zhang, Jiaqiang; Hao, Lewei; Ma, Xiaofeng; Qiu, Junli] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China; [Li, Shixiang; Zhou, Xinping] PetroChina Changqing Oilfield Co, Xian 710018, Peoples R China; [Guo, Ruiliang] Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China; [Guo, Ruiliang] Xian Shiyou Univ, Shaanxi Key Lab Petr Accumulat Geol, Xian 710065, Peoples R China; [Wang, Yang] Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China; [Chen, Junlin; Zhang, Jiaqiang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Shutong,Li, Shixiang,Guo, Ruiliang,et al. Occurrence State of Soluble Organic Matter in Shale Oil Reservoirs from the Upper Triassic Yanchang Formation in the Ordos Basin, China: Insights from Multipolarity Sequential Extraction[J]. 中国科学院西北生态环境资源研究院,2021,30(6).
APA	Li, Shutong.,Li, Shixiang.,Guo, Ruiliang.,Zhou, Xinping.,Wang, Yang.,...&Qiu, Junli.(2021).Occurrence State of Soluble Organic Matter in Shale Oil Reservoirs from the Upper Triassic Yanchang Formation in the Ordos Basin, China: Insights from Multipolarity Sequential Extraction.NATURAL RESOURCES RESEARCH,30(6).
MLA	Li, Shutong,et al."Occurrence State of Soluble Organic Matter in Shale Oil Reservoirs from the Upper Triassic Yanchang Formation in the Ordos Basin, China: Insights from Multipolarity Sequential Extraction".NATURAL RESOURCES RESEARCH 30.6(2021).