Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China

doi:10.1016/j.jngse.2019.04.009

CORC > 地质与地球物理研究所 > 中国科学院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

	Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China
	Wang, Yu 1; Wang, Lihua 1,2; Wang, Jianqiang 1; Jiang, Zheng 1,2; Wang, Chun-Chieh 3; Fu, Yanan 2; Song, Yen-Fang 3; Wang, Yanfei 4; Liu, Dezheng 5; Jin, Chan 1
刊名	JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
	2019-06-01
卷号	66 页码:207-216
关键词	Multiscale imaging X-ray computed tomography FIB-SEM 3D microstructure Representative elementary volume Longmaxi shale
ISSN号	1875-5100
DOI	10.1016/j.jngse.2019.04.009
英文摘要	A typical Longmaxi (LMX) shale sample from Sichuan basin, China, is investigated in three dimensional through multiscale tomography methods spanning pixel sizes from 3.25 mu m to 10 nm, combining X-ray computed tomography and focused ion beam-scanning electron microscopy imaging techniques. Pores, organic matter (OM) and pyrite were segmented and reconstructed at multiple scales and the representative elementary volume (REV) of each phase at different scales based on the convergence of error bars in the volume fraction are determined. Results show that REVs at each scale varied between different phases. The determination of REV defined the applicable scale of different methods as well as the appropriate scales of specific structures. Porosity of LMX shale determined at different scales shows significant difference at two orders of magnitude. This difference likely was caused by structural heterogeneity together with the limitations of methods. This study confirms that REV is a feasible and powerful approach in modeling shale using multiscale 3D imaging. The application of multiscale 3D imaging techniques to worldwide shale gas reservoirs could allow for significant insights into the assessment of migration mechanisms within low-permeability systems.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10020102] ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology[12JC1410400] ; National Natural Science Foundation of China[11805257]
WOS关键词	SCANNING-ELECTRON-MICROSCOPY ; OIL-SHALE ; SEDIMENTARY-ROCKS ; MORPHOLOGY ; PYROLYSIS ; SEM ; TERRESTRIAL ; TOMOGRAPHY ; ADSORPTION ; CHALLENGES
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000467062800018
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; major Program for the Fundamental Research of Shanghai Committee of Science and Technology ; National Natural Science Foundation of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/91481]
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	Wang, Lihua
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, Shanghai Adv Res Inst, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 3.Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 5.Hubei Univ Arts & Sci, Xiangyang 441053, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yu,Wang, Lihua,Wang, Jianqiang,et al. Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2019,66:207-216.
APA	Wang, Yu.,Wang, Lihua.,Wang, Jianqiang.,Jiang, Zheng.,Wang, Chun-Chieh.,...&Jin, Chan.(2019).Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,66,207-216.
MLA	Wang, Yu,et al."Multiscale characterization of three-dimensional pore structures in a shale gas reservoir: A case study of the Longmaxi shale in Sichuan basin, China".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 66(2019):207-216.