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k = k_1 \, \phi^{m_1} + k_2 \, \phi^{m_2} |
where
| effective porosity |
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This is a complex empirical model which does not directly rely on the Flow Zone Indicator.
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This model was thought to be empirical for a very long time but later on it was shown that it has a clear physical meaning as percolation theory based on the fractal structure of the pore volumewithin the frame of fluid percolation through a porous medium with fractal structure.
See also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics / Absolute permeability / Absolute permeability @model
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