Permeability-porosity relationship: A reexamination of the Kozeny-Carman equation based on a fractal pore-space geometry assumption

Physics – Geophysics

Scientific paper

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Mathematical Geophysics: General Or Miscellaneous, Mineralogy And Petrology: Fluid Flow, Physical Properties Of Rocks: Permeability And Porosity, Physical Properties Of Rocks: General Or Miscellaneous, Volcanology: Physics And Chemistry Of Magma Bodies

Scientific paper

The relationship between permeability and porosity is reviewed and investigated. The classical Kozeny-Carman approach and a fractal pore-space geometry assumption are used to derive a new permeability-porosity equation. The equation contains only two fitting parameters: a Kozeny coefficient and a fractal exponent. The strongest features of the model are related to its simplicity and its capability to describe measured permeability values of different non-granular porous media better than other models.

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