Impact of salinity and temperature variations on relative permeability and residual oil saturation in neutral-wet sandstone

Low-salinity water flooding has become one of the major emerging enhanced oil recovery techniques where lower salinity is flooded into a hydrocarbon reservoir in order to increase recovery. It’s been widely reported that wettability alteration from oil-wet water-wet low-salinity process improves Many factors control system wettability, however, role and intensity each factor not completely understood. Therefore, several affecting on were eliminated present work determine impact different relative permeability curves residual saturation. A series experiments performed three simulated brine solutions injected saturated thoroughly cleaned neutral-wet sandstone core plugs. The effect temperature saturation was also determined by injecting 115,000 ppm at temperatures. Results indicate decreasing alters preference rock towards favorable water-wetting conditions. Water-wet conditions decrease mobility enhance mobilization leading better microscopic displacement efficiency reduced Elevated reduces Cited as: Mahmud, W. M. Impact variations sandstone. Capillarity, 2022, 5(2): 23-31. https://doi.org/10.46690/capi.2022.02.01