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\phi_e = \frac{V_\phi}{V_r} |
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It splits into two components: open porosity body LaTeX Math Inline
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Closed porosity |
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Effective porosity is a function of reservoir pressure at a given location
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\phi(\mathbf{r}, \ p) = \phi_0(\mathbf{r}) \exp \left[ - \int_{p_i}^p c_r(p) \, dp \right] |
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