Minimal water saturation occurrence in the pore volume:

s_{wl}=\min s_w

Connate water saturation  maybe equal to critical   or less than critical , like for example in petroleogenetic rocks.

See also

Physics /  Fluid Dynamics / Percolation

Petroleum Industry / Upstream / Subsurface E&P Disciplines / Field Study & Modelling / Volumetric Rock Model (VRM)

[ Petrophysics ] [ Basic reservoir properties ] [ Wettability ] [ Permeability ] [ Absolute permeability ]  [Relative permeability]  [ Water permeability ] [ Water relative permeability  ]