Simultaneous two-phase flow in porous media has been studiedexperimentally, in a large quasi two-dimensional laboratory model ofroughly $~214000$ pores. Both the invasion phase and steady-statehave been considered. Steady-state flow is a more realisticdescription of the situation deep inside natural reservoirs, thanpure transient regimes.
In all experiments the combination of glycerol/water and air havebeen used as the pair of wetting and non-wetting fluid respectively.Analysis has been performed on the basis of digital imaging ofdisplacement structures, pressure measurements and balance readingsof produced output volume of wetting fluid.
We seek to answer how pressure and fluid flow relate to dynamics and the observed displacement structures.