Experimental Study of Asphaltene Adsorption on Reservoir Rock Minerals

The main objective of this study was improving basic perception of physicochemical crude oil’s asphaltene properties in liquid and solid surfaces (asphaltene/mineral interactions). Using asphaltene obtained from Maroun crude oil and different reservoir rock minerals, static adsorption tests were performed. The amount of adsorbed asphaltene was calculated from mass balance after determining the equilibrium concentration by UV/VIS method (288 nm). Adsorption isotherms of asphaltene on Quartz, Kaoline, Calcite and Feldspar were analyzed and compared.