DOI: 10.1002/2014GL060180
论文题名: Universal scaling of the formation factor in porous media derived by combining percolation and effective medium theories
作者: Ghanbarian B. ; Hunt A.G. ; Ewing R.P. ; Skinner T.E.
刊名: Geophysical Research Letters
ISSN: 0094-10619
EISSN: 1944-10350
出版年: 2014
卷: 41, 期: 11 起始页码: 3884
结束页码: 3890
语种: 英语
英文关键词: effective medium approach
; formation factor
; percolation theory
; porosity
; universal scaling
Scopus关键词: Percolation (solid state)
; Porosity
; Porous materials
; Solvents
; Effective medium approaches
; Effective medium theories
; Formation factor
; Percolation theory
; Percolation thresholds
; Porosity dependence
; Universal scaling
; Universal scaling laws
; Salinity measurement
; experimental study
; numerical method
; percolation
; porosity
; porous medium
英文摘要: The porosity dependence of the formation factor for geologic media is examined from the perspective of universal scaling laws from percolation and effective medium theories. Over much of the range of observed porosity, the expected percolation scaling is observed, but the values of the numerical prefactor do not conform to the simple predictions from percolation theory. Combining effective medium and percolation theories produces a numerical prefactor whose value depends on both the threshold porosity and the porosity above which the formation factor crosses from percolation to effective medium scaling. This change allows extraction of a numerical value of the prefactor, which is reasonably close to experimental values. Subsequent evaluation of the porosity dependence of the formation factor shows that difficulties in prior comparisons of theory and experiment are largely removed when percolation scaling is allowed to transition to effective medium scaling far above the percolation threshold. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84901739117&doi=10.1002%2f2014GL060180&partnerID=40&md5=8098dbb1320ca58e958fc055fe1ae673
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7883
Appears in Collections: 气候减缓与适应
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作者单位: Department of Earth and Environmental Sciences, Wright State University, Dayton, OH, United States
Recommended Citation:
Ghanbarian B.,Hunt A.G.,Ewing R.P.,et al. Universal scaling of the formation factor in porous media derived by combining percolation and effective medium theories[J]. Geophysical Research Letters,2014-01-01,41(11).