Role of Pore Geometry in a Petroleum Reservoir

Feasible to capture the actual interplay between – ‘water/oil/gas flow’ - ‘between micro-pores (say, average pore sizes lesser than 1 micron) and macro-pores (say, average pore sizes greater than 10 microns)’ – in the absence of an artificially introduced – (a complete separation of) length-scales for micro-pores and macro-pores?

Is there a way to deduce the details on the number of pores and throats that remain ‘not’ connected; or, connected only through much smaller micro-pores – in order to have an improved picture - over the way the pore-fluids have been held in a complex three-dimensional pore-network; and the way the curvature, the contact angle and the capillary pressure are being controlled?

In the absence of assuming an uniform saturation profile (for each fractional flow), will it remain feasible to deduce the water and oil relative permeability values - as a function of porosity and saturation (measured over micro-pore sizes)?