Physicochemical Aspects of Microemulsion Flooding

摘要: Whenever water, an oil, and a surfactant equilibrate at concentrations of in excess critical micelle concentrations, one or more microemulsions form. In view this, all flooding processes may involve situ. Ternary diagrams have been constructed for 3 specific microemulsion systems showing the effects salinity cosurfactant on phase behavior, viscosity, resistivity, optical birefringence, interfacial tension. Using these data, micellar structure maps were prepared single-phase region. this connection, Winsor's concept intermicellar equilibrium was found consistent with interest tertiary oil recovery. Experimental techniques are described minimizing extent multiphase region measuring low tensions that obtain there. (21 refs.)