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DOI | 10.1029/2019GL082585 |
Pore-Scale Explanation of the Archie's Cementation Exponent: Microstructure, Electrical Anisotropy, and Numerical Experiments | |
Yue, Wenzheng1,2 | |
2019-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:11页码:5799-5807 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Electrical anisotropy of rock is a key parameter in geophysical research. In this paper, digital rocks were constructed by aligning elliptic grains to create samples with anisotropic pore connectivities. Lattice gas automata are used to research electrical transport properties for revealing the anisotropy and physical meaning of Archie's cementation exponent. Simulated results indicate that the relationship between formation factor and porosity is of anisotropy with the exponent corresponding to the change rate of pore complexity with porosity, instead of pore complexity itself, confirming previous theoretical studies. Besides, the results reveal that anisotropy of pore structure is a main factor leading to the anisotropic relation. Under the effects of fracture, there is a U-shape transition zone over a range of porosity for anisotropy exponent. Moreover, the simulated data are in good agreement with the laboratory experiments, which can further verify the validity of the results. |
英文关键词 | electrical anisotropy pore microstructure digital rock formation factor Archie' s formula lattice gas automata |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000477616200019 |
WOS关键词 | HYDRATE RIDGE ; POROUS-MEDIA ; GAS ; LAW ; CONDUCTIVITY ; PERMEABILITY ; EQUATIONS ; SHALE ; LOG |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/184083 |
专题 | 气候变化 |
作者单位 | 1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing, Peoples R China; 2.CNPC Key Lab Well Logging, Key Lab Earth Prospecting & Informat Technol, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Yue, Wenzheng. Pore-Scale Explanation of the Archie's Cementation Exponent: Microstructure, Electrical Anisotropy, and Numerical Experiments[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(11):5799-5807. |
APA | Yue, Wenzheng.(2019).Pore-Scale Explanation of the Archie's Cementation Exponent: Microstructure, Electrical Anisotropy, and Numerical Experiments.GEOPHYSICAL RESEARCH LETTERS,46(11),5799-5807. |
MLA | Yue, Wenzheng."Pore-Scale Explanation of the Archie's Cementation Exponent: Microstructure, Electrical Anisotropy, and Numerical Experiments".GEOPHYSICAL RESEARCH LETTERS 46.11(2019):5799-5807. |
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