Laboratory Measurements Relevant to Two-Phase Flow in a Tight Gas Sand Matrix

Abstract

ABSTRACT True drainage measurements of specific water permeability, gas entry pressure, critical gas saturation and effective gas permeability at in-situ stress conditions have been conducted on several tight sandstones, mostly from the Mesaverde formation. The results have been used to develop some general rules useful in making meaningful estimates of both drainage and imbibition relative permeability curves for use in reservoir simulation.