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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

文献类型：期刊论文

作者Li, Shutong1; Li, Shixiang2; Guo, Ruiliang3,4; Zhou, Xinping2; Wang, Yang5; Chen, Junlin1,6; Zhang, Jiaqiang1,6; Hao, Lewei1; Ma, Xiaofeng1; Qiu, Junli1
刊名NATURAL RESOURCES RESEARCH
出版日期2021-10-17
页码24
ISSN号1520-7439
关键词Moveable hydrocarbons Sequential extraction Yanchang Formation Ordos Basin Shale oil Soluble organic matter
DOI10.1007/s11053-021-09959-6
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.
WOS关键词CRETACEOUS QINGSHANKOU FORMATION ; SOUTHERN SONGLIAO BASIN ; BOHAI BAY BASIN ; LACUSTRINE SHALE ; 1ST MEMBER ; GULONG SAG ; PETROLEUM ; ENRICHMENT ; SYSTEM ; WHOLE
资助项目National Natural Science Foundation of China[41772142] ; National Natural Science Foundation of China[41802160] ; China Postdoctoral Science Foundation[2021M692735] ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council[201904910319]
WOS研究方向Geology
语种英语
出版者SPRINGER
WOS记录号WOS:000707874500001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council ; National Construction of High-Quality University Projects of Graduates from the China Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/102992]  
专题地质与地球物理研究所_兰州油气中心
通讯作者Guo, Ruiliang; Wang, Yang
作者单位1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China
2.PetroChina Changqing Oilfield Co, Xian 710018, Peoples R China
3.Xian Shiyou Univ, Sch Earth Sci & Engn, Xian 710065, Peoples R China
4.Xian Shiyou Univ, Shaanxi Key Lab Petr Accumulat Geol, Xian 710065, Peoples R China
5.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China
6.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]. NATURAL RESOURCES RESEARCH,2021:24.
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,24.
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 (2021):24.

入库方式： OAI收割

来源：地质与地球物理研究所

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