An enhanced percolation model for the capillary pressure-saturation relation

Analysis of immiscible flow in porous media requires constitutive relationships between fluid content(s), fluid pressure(s) and relative permeabilities. Laboratory measurement of these relationships, especially for the case of more than two fluid phases, is an expensive and time consuming undertaking. An enhanced percolation model offers a theoretical framework in which these relationships can be predicted based on measurement of simple fluid and matrix properties. An application of this technique to the hysteretic relationship between capillary pressure and saturation for a two-fluid system is presented. -from Authors