气候变化领域集成服务门户(CCPortal): Surface Conduction Model for Fractal Porous Media

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DOI	10.1029/2020GL087553
	Surface Conduction Model for Fractal Porous Media
	Wang H.; Revil A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:10
英文摘要	The electrical conductivity of natural water-saturated porous materials has two contributions, one associated with conduction in the pore network and a second one associated with the electrical double layer coating the surface of the mineral grains, and called surface conductivity. We model the effect of material texture on surface conductivity based on fractal theory. We demonstrate that surface conductivity obeys a power-law dependence (that we called surface Archie's law) on the specific surface area. The power exponent is theoretically related to the porosity exponent entering Archie's law and to the fractal dimension of the pore network. A permeability model is derived by combining the new surface Archie's law and the Kozeny-Carman model. We show that our model is consistent with both numerical finite element simulations on synthetic porous media and experimental data. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Electric conductivity; Porous materials; Textures; Electrical conductivity; Electrical double layers; Finite element simulations; Fractal porous media; Kozeny-Carman model; Power-law dependences; Surface conductivity; Synthetic porous media; Fractal dimension; coating; electrical conductivity; finite element method; permeability; porosity; porous medium; simulation
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170329
作者单位	State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology), College of Geophysics, Chengdu University of Technology, Chengdu, China; University Grenoble Alpes, University Savoie Mont-Blanc, CNRS, UMR CNRS 5204, EDYTEM, Le Bourget du Lac, France
推荐引用方式 GB/T 7714	Wang H.,Revil A.. Surface Conduction Model for Fractal Porous Media[J],2020,47(10).
APA	Wang H.,&Revil A..(2020).Surface Conduction Model for Fractal Porous Media.Geophysical Research Letters,47(10).
MLA	Wang H.,et al."Surface Conduction Model for Fractal Porous Media".Geophysical Research Letters 47.10(2020).