The Effect of Adsorption of Crude Oil Polar Organic Components on Wettability and EOR Potential by Smart Water on Sandstone Cores

Reservoir wettability is widely acknowledged as one of the most influential parameters in oil recovery processes. The complexity of the underlying crude oil brine rock (CoBR) interactions at the interface boundaries acting within the pores determines the process of establishing and altering wettability. The wettability condition of crude oil is primarily determined by the adsorption or precipitation of the polar organic components (POC). In this study, a series of dynamic adsorption tests were performed to investigate the surface reactivity of acidic and basic POC towards silicate mineral surfaces. The tests were performed by flooding modified crude oil containing low asphaltene content (