Laboratory experiments were conducted in a two-dimensional (~-D) physical model to detennine the effect of wettabilily on the light O!I recovery by ~~m from previously waterflooded porous media of different wettabilitl88. The results show that lighl-oil steamfloods from oil-wet porous media (silylated sand) start at a higher waterflood residual oil saturation, respond faster to steam, and flood to the same residual oil saturation as water-wet porous media. Oil-wet reservoirs typically are poor waterflood candidates and produce at stripper weD status but have a high waterflood residual oil saturation. These

No abstract