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DOI | 10.1002/2017WR020780 |
Multiscale pore structure and its effect on gas transport in organic-rich shale | |
Wu, Tianhao1; Li, Xiang1; Zhao, Junliang1; Zhang, Dongxiao2,3 | |
2017-07-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:7 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | A systematic investigation of multiscale pore structure in organic-rich shale by means of the combination of various imaging techniques is presented, including the state-of-the-art Helium-Ion-Microscope (HIM). The study achieves insight into the major features at each scale and suggests the affordable techniques for specific objectives from the aspects of resolution, dimension, and cost. The pores, which appear to be isolated, are connected by smaller pores resolved by higher-resolution imaging. This observation provides valuable information, from the microscopic perspective of pore structure, for understanding how gas accumulates and transports from where it is generated. A comprehensive workflow is proposed based on the characteristics acquired from the multiscale pore structure analysis to simulate the gas transport process. The simulations are completed with three levels: the microscopic mechanisms should be taken into consideration at level I; the spatial distribution features of organic matter, inorganic matter, and macropores constitute the major issue at level II; and the microfracture orientation and topological structure are dominant factors at level III. The results of apparent permeability from simulations agree well with the values acquired from experiments. By means of the workflow, the impact of various gas transport mechanisms at different scales can be investigated more individually and precisely than conventional experiments. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407895000014 |
WOS关键词 | SCALE CHARACTERIZATION ; MATRIX PERMEABILITY ; CARBON-DIOXIDE ; POROUS-MEDIA ; ADSORPTION ; LONGMAXI ; METHANE ; FLOW ; OIL ; NETWORKS |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21016 |
专题 | 资源环境科学 |
作者单位 | 1.Peking Univ, Coll Engn, Dept Energy & Resources Engn, Beijing, Peoples R China; 2.Peking Univ, Coll Engn, BIC ERE, ERE, Beijing, Peoples R China; 3.Peking Univ, Coll Engn, SKLTCS, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Tianhao,Li, Xiang,Zhao, Junliang,et al. Multiscale pore structure and its effect on gas transport in organic-rich shale[J]. WATER RESOURCES RESEARCH,2017,53(7). |
APA | Wu, Tianhao,Li, Xiang,Zhao, Junliang,&Zhang, Dongxiao.(2017).Multiscale pore structure and its effect on gas transport in organic-rich shale.WATER RESOURCES RESEARCH,53(7). |
MLA | Wu, Tianhao,et al."Multiscale pore structure and its effect on gas transport in organic-rich shale".WATER RESOURCES RESEARCH 53.7(2017). |
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