Characterization of rheological behavior of alkali-surfactant-polymer (ASP) solution and oil emulsion isdifficult, due to the complex chemical components and various physiochemical reactions with oil during chemicalflooding. Through rheological experiments of ASP and crude oil emulsion, this paper presents the studies on influencingfactors of rheological behavior, including interfacial tension, polymer and water cut, and discusses the stabilitymechanism of ASP and crude oil emulsion. The relationships among viscosity, interfacial tension, water cut and sheer ratewere built through fitting the experimental data. The model and calculation can be used to more accurately simulate theASP flooding in oil reservoirs.
展开▼
