High-temperature relative permeabilities for Athabasca oil sands--

Experimental study of Athabasca bitumen/water relative permeabilities. The study revealed no temperature effect on the relative permeabilities to water and bitumen over a range of 100 to 250 o C (212 to 482 o F). Comparable results were obtained with both steady- and unsteady-state relative permeability measuring techniques. It was determined that the oil-phase relative permeability curve was convex