Simultaneous Determination of Capillary Pressure and Relative Permeability by Automatic History Matching

Abstract

Summary This paper presents a new method for the simultaneous determination of capillary pressure and relative permeability that is a modification of the porous-plate capillary pressure experiment. The modifications involve the use of thin core samples and thin plastic filtration membranes, resulting in a significantly faster experiment. Relative permeabilities are determined from the experimental data by the use of an automatic history-matching simulator. The new method is found to be particularly well suited for the measurement of small oil relative permeabilities in gas/oil systems.