SIMULATION OF CAPILLARY-DOMINATED DISPLACEMENTS IN MICROTOMOGRAPHIC IMAGES OF RESERVOIR ROCKS

Displacement simulation in realistic pore networks, such as those deri ved from X-ray microtomography, is presented for the regime where capi llarity controls fluid motions and spatial distributions. Complex disp lacement sequences involving both imbibition and drainage are construc ted to extract wettability indices. The percolation properties of pred icted equilibrium phase distributions are analyzed. Equilibrium fluid distributions are used to model transport properties for each phase.