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@wikipedia


One of the Absolute permeability models based on the pipe conduit or multigrain pack:

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k = \frac{d^2}{72 \cdot \tau^2} \cdot \frac{(\phi_f -\phi_{f0})^3}{( 1 - \phi_f+\phi_{f0})^2}

where

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absolute permeability

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body\phi_e

effective formation porosity

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body\phi_0

porosity cut-off

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bodyd

grain size

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body\tau

pore channel tortuosity
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k = 1014.24 \cdot FZI^2 \cdot \frac{\phi^3}{( 1 - \phi )^2}

...

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics / Absolute permeability / Absolute permeability @model


References

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J. Kozeny, "Ueber kapillare Leitung des Wassers im Boden." Sitzungsber Akad. Wiss., Wien, 136(2a): 271-306, 1927.