Reservoir Engineering: Applicability of Darcy’s Law
What should be the threshold or critical or minimum (average) pore-size of a petroleum reservoir, up to which, Darcy’s law could be applied comfortably
(where, the [average] pore-size remains large enough with significant permeability in order to hold a linear relationship between fluid flux and pressure gradient);
and where,
the thickness of the boundary-layer remains negligible?
What should be the minimum pore-size:
(a) where, the deviation from viscous laminar flow mechanism commences?
(b) where, the reservoir fluid properties get significantly affected by the strong solid-fluid interaction in the boundary layer?
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