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Pore Properties of the Lacustrine Shale in the Upper Part of the Sha-4 Member of the Paleogene Shahejie Formation in the Dongying Depression in East China

文献类型：期刊论文

作者Wang, Ziyi4,5,6; Zhang, Liuping4,5; Gao, Yuan3; Yang, Wenxiu2; Wang, Yongshi1; Liu, Huimin1; Li, Zhaoyang4,5,7; Zhou, Shanshan4,5,6
刊名GEOFLUIDS
出版日期2021-03-16
卷号2021页码:20
ISSN号1468-8115
DOI10.1155/2021/6616843
英文摘要Lacustrine shales hold a huge potential oil resource in China. Pore properties (pore volume, diameter, specific surface area, and fractal dimensions) and their relationships with geological factors (mineralogy, insoluble organic carbon, burial depth, and vitrinite reflectance) are critical for evaluating shale oil resource. However, the factors controlling pores for lacustrine shale oil remain unclear, as the relationships between pore properties of Soxhlet-extracted samples and geological factors have not been studied using multivariate analytical methods. In this paper, the samples from the lacustrine shale in the upper part of the Sha-4 Member of the Paleogene Shahejie Formation in the Dongying Depression were tested with a set of experiments including Soxhlet (solvent) extraction, X-ray diffraction mineral analysis, insoluble organic carbon, vitrinite reflectance, and low-pressure CO2 and N-2 adsorption experiments. The micromesopore volume varies from 0.003 cm(3)/g to 0.045 cm(3)/g. The relationships of pore properties with geological factors were studied with partial least square regression analysis (PLSR analysis, a powerful multivariate regression analysis). The results of the PLSR analyses indicate that clay minerals and carbonates are two key factors affecting the pore properties of the lacustrine shale. Compared with marine shales, more clay minerals in the lacustrine shale make them become more important for controlling pores than organic matter. The PLSR results also illustrate that the shale with higher pore volume contains more clay minerals and fewer carbonates and thus is unfavorable for hydraulic fracturing. Therefore, the shale with high micromesopore volume may be unfavorable for shale oil production. The shale with the modest micromesopore volume (similar to 0.036 cm(3)/g), relatively high content of brittle minerals (similar to 71 wt%), and low clay mineral content (similar to 29 wt%) is conducive to both oil storage and hydraulic fracturing for the development of the Es4U shale oil in the Dongying Depression in East China.
资助项目Major Project of Institute of Geology and Geophysics, CAS[IGGCAS-201903] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10020203]
WOS研究方向Geochemistry & Geophysics ; Geology
语种英语
出版者WILEY-HINDAWI
WOS记录号WOS:000639787200001
资助机构Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Major Project of Institute of Geology and Geophysics, CAS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/101146]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Zhang, Liuping
作者单位1.Shengli Oilfield Co Sinopec, Dongying 257051, Peoples R China
2.Roxar Software Solut, Emerson Proc Management, N-1366 Lysaker, Norway
3.Beijing Ctr Phys & Chem Anal, Beijing 100089, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.China Inst Disaster Prevent, Sanhe 065201, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Ziyi,Zhang, Liuping,Gao, Yuan,et al. Pore Properties of the Lacustrine Shale in the Upper Part of the Sha-4 Member of the Paleogene Shahejie Formation in the Dongying Depression in East China[J]. GEOFLUIDS,2021,2021:20.
APA Wang, Ziyi.,Zhang, Liuping.,Gao, Yuan.,Yang, Wenxiu.,Wang, Yongshi.,...&Zhou, Shanshan.(2021).Pore Properties of the Lacustrine Shale in the Upper Part of the Sha-4 Member of the Paleogene Shahejie Formation in the Dongying Depression in East China.GEOFLUIDS,2021,20.
MLA Wang, Ziyi,et al."Pore Properties of the Lacustrine Shale in the Upper Part of the Sha-4 Member of the Paleogene Shahejie Formation in the Dongying Depression in East China".GEOFLUIDS 2021(2021):20.

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来源：地质与地球物理研究所

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