Application of different novel and newly designed commercial ionic liquids and surfactants for more oil recovery from an Iranian oil field

Consequently, the core flooding tests revealed more oil recovery efficiency of 8% and 22% based on original oil in place (OOIP) and residual oil in place, respectively for the solely IFT reduction cases. The oil recovery efficiency for the tertiary oil recovery process was increase up to 12% and 35%, based on OOIP and residual oil in place, respectively, which clearly clarifies the effectiveness of soaking to exploit the wettability alteration mechanism.