Stability Dynamic Characteristic of Oil-in-Water Emulsion from Alkali–Surfactant–Polymer Flooding
Chunhong Nie, Guoqiang Han, Jiawen Ni, Shuxia Guan, Huan Du, Yupeng Zhang, Heting Wang
Abstract
> 200 mg/L). The stabilities of O/W emulsions were improved with the increasing concentrations of the surfactant and polymer. The mechanism of stabilization of the O/W emulsion by ASP is as follows. The surface-active substances formed by the reaction of alkali and acidic substances in the oil phase, together with surfactants, adsorb at the oil-water interface, reducing the interfacial tension and increasing the strength of the oil-water interface film. The polymer only increases the strength of the interface film by increasing the viscoelasticity of the oil-water interface film.
Topics & Concepts
EmulsionPulmonary surfactantAlkali metalSurface tensionPolymerChemical engineeringAdsorptionPhase (matter)Materials scienceViscoelasticityChemistryChromatographyOrganic chemistryComposite materialThermodynamicsPhysicsEngineeringEnhanced Oil Recovery TechniquesPickering emulsions and particle stabilizationPetroleum Processing and Analysis