changes.mady.by.user Arthur Aslanyan (Nafta College)
Saved on Jul 06, 2021
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{\rm FZI} = \frac{w_f}{2 \, \sqrt{F_S}}
F_S \approx 3 \cdot 10^{-6} \, \frac{\phi_{fof0}^2}{(1-\phi_{f0})^3}
which leads to simple correlation for fracture permeability: