| DOI: | 10.1002/2015GL064460
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| 论文题名: | An electrical conductivity model for fractal porous media |
| 作者: | Wei W.; Cai J.; Hu X.; Han Q.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8643
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| EISSN: | 1944-8374
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| 出版年: | 2015
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| 卷: | 42, 期:12 | | 起始页码: | 4833
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| 结束页码: | 4840
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| 语种: | 英语
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| 英文关键词: | Archie's equation
; cementation
; electrical conductivity
; fractal
; tortuosity
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| Scopus关键词: | Cementing (shafts)
; Electric conductivity
; Fractals
; Porosity
; Porous materials
; Salinity measurement
; Archie's equation
; Cementation
; Electrical conductivity
; Fractal characteristics
; Fractal porous media
; Physical interpretation
; Tortuosity
; Tortuosity fractal dimensions
; Fractal dimension
; cementation
; electrical conductivity
; empirical analysis
; fractal analysis
; numerical model
; pore space
; porous medium
; rock mechanics
; tortuosity
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| 英文摘要: | Archie's equation is an empirical electrical conductivity-porosity model that has been used to predict the formation factor of porous rock for more than 70 years. However, the physical interpretation of its parameters, e.g., the cementation exponent m, remains questionable. In this study, a theoretical electrical conductivity equation is derived based on the fractal characteristics of porous media. The proposed model is expressed in terms of the tortuosity fractal dimension (DT), the pore fractal dimension (Df), the electrical conductivity of the pore liquid, and the porosity. The empirical parameter m is then determined from physically based parameters, such as DT and Df. Furthermore, a distinct interrelationship between DT and Df is obtained. We find a reasonably good match between the predicted formation factor by our model and experimental data. © 2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948711942&doi=10.1002%2f2015GL064460&partnerID=40&md5=d992347ceedd57d1acd7a730c45de19c
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8259
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Hubei Subsurface Multi-scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China
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| Recommended Citation: | |
Wei W.,Cai J.,Hu X.,et al. An electrical conductivity model for fractal porous media[J]. Geophysical Research Letters,2015-01-01,42(12).
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