01638nab a2200205 4500 20260520000927.0 260224s2011 xxu Atomic Force Microscopy (AFM) investigation on the surfactant wettability alteration mechanism of aged mica mineral surfaces ene./feb. 2011 01/04/2011 ; 01/04/2011 6 p. ; 183-188 Transcripción del resumen del autor. In this study, the mica samples aged in crude oil were treated by two types of surfactants: Triton X-100 and C16TAB, to find the mechanisms of wettability alteration. The contact angle measurements were conducted stepwise to check the wettability alteration of the mica surfaces. Atomic force microscopy (AFM) topographies and phase images were obtained and used to investigate the effects of aging in crude oil and surfactant treatment of the mica surface. The results show that the solution of Triton X-100/brine changes the wettability of the mica surface aged in crude oil to water-wet; however, the solution of C16TAB/brine alters the aged mica surface to more oil-wet conditions. Fractal measurement was used to check the AFM images for quantitative assessment of the surface roughness for wettability alteration investigation. Two different mechanisms proposed here are the surface cleaning and the surfactant adsorption for Triton X-100 and C16TAB, respectively. 1 Energy & fuels 25 ARTICULO Seiedi, Omolbanin 45021 Rahbar, Marziyeh 45022 Nabipour, Moein 45023 174391 174391 0 0 0 0 242210 BAAB BAAB 2026-03-05 200052407 0 200052407 2026-03-05 16:11:49 2026-03-05 ARTICULO