Effect of SiO2 nanoparticles + 1-dodecyl-3-methyl imidazolium chloride on the IFT and wettability alteration at the presence of asphaltenic-synthetic oil

Abstract Using nanoparticles (NPs) in different industries such as enhanced oil recovery processes increased during the past decade due to its significant effects on wettability alteration and IFT reduction some extent. On other side, ionic liquids (ILs) are proposed a new class of solvents that introduce considerable advantages areas sciences. In this way, hybrid method based NPs ILs is current investigation. So, silicon dioxide (SiO 2) one most effective 1-dodecyl-3-methyl imidazolium chloride ([C 12 mim][Cl]) surfactants used find their interfacial tension (IFT) at presence asphaltenic synthetic for first time. stability SiO 2 -NPs absence IL examined which revealed more than month while fast precipitation was observed if no existed solution. After that, effect investigated by changing concentration these chemicals between 0 2000 ppm ranging asphaltene content 10%wt. The results all concentrations fraction, inevitable increases. Besides, demonstrate there threshold value (6%wt) values below or higher threshold, reduces leading vanishing sharp determining distinguished critical micelle (CMC). According findings, (ASO) with 6%wt CMC 250 obvious ASO, exist. Moreover, reveal 0.48 mN/m increases kept constant 6%wt. Further measurements negligible concomitant existence 1000 moves rock surface toward strongly water-wet contact angle (CA) 33.1°. worth mentioning point entire amount CA from 156.3° (initial condition) 33.1° solution not completely it cumulative presence. Finally, several core flooding experiments performed using chemical formulations + each tertiary 15.2%wt OOIP ASO/formation brine