Effective porosity

Input(s)

$V_{P_{e}}$: Effective Pore Volume $\left(\mathrm{cm}^{3}\right)$

$V_{b}$: Bulk Volume $\left(\mathrm{cm}^{3}\right)$

$V_{o}$: Total Oil Volume in Interconnected Pores $\left(\mathrm{cm}^{3}\right)$

$V_{g}$: Total Gas Volume in Interconnected Pores $\left(\mathrm{cm}^{3}\right)$

$V_{w}$: Total Water Volume in Interconnected Pores $\left(\mathrm{cm}^{3}\right)$

Output(s)

$\varnothing_{\text {eff: }} \quad$ Effective Porosity (fraction)

Formula(s)

$$ \begin{gathered} \mathrm{V}_{\mathrm{P}_{\mathrm{e}}}=\mathrm{V}_{\mathrm{o}}+\mathrm{V}_{\mathrm{g}}+\mathrm{V}_{\mathrm{w}} \\ \varnothing_{\mathrm{eff}}=\frac{\mathrm{V}_{\mathrm{P}_{\mathrm{e}}}}{\mathrm{V}_{\mathrm{b}}} \end{gathered} $$

Reference(s)

Mihcakan, I.M., Alkan, K.H., Ugur, Z., Petroleum and Natural Gas Laboratory, Course Notes, II-Properties of Porous Media, ITU, Petroleum and Natural Gas Engineering, Istanbul, Turkey, 2001. Page: 1-3.