Part of pore volume  which is globally hydrodynamically connected and contributes to permeability:

\Omega_{\rm open} = \Omega_\phi - \Omega_{\rm closed}

where

closed pore volume


See also


Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics (PP) / Volumetric Rock Model

Basic reservoir properties ] [ Pore volume ] [ Open pore volume ] [ Closed pore volume ] [ Porosity ] [ Open porosity ] [ Closed porosity ]