Characterization of rheological behavior of alkali-surfactant-polymer (ASP) solution and oil emulsion is difficult, due to the complex chemical components and various physiochemical reactions with oil during chemical flooding. Through rheological experiments of ASP and crude oil emulsion, this paper presents the studies on influencing factors of rheological behavior, including interfacial tensi...

Adding surfactant into the displacing aqueous phase during surfactant-enhanced aquifer remediation of NAPL contamination and in chemical flooding oil recovery significantly changes interfacial tension (IFT) (σ) on water–oil interfaces within porous media. The change in IFT may have a large impact on relative permeability for the two-phase flow system. In most subsurface flow investigations, how...

Chemical flooding, such as alkaline-surfactant (AS) or nanoparticles-surfactant (NS) is an enhanced oil recovery (EOR) technique that has been increasingly utilized to enhance the production rate and factor while reducing chemical adsorption. The AS/NS flooding process involves injection of a mixture surfactant alkali/nanoparticles solutions into reservoir reduce interfacial tension between wat...

Surfactant-based oil recovery processes are employed to lower the interfacial tension in immiscible displacement processes, change wettability of rock a more water-wet system and emulsify displace it subsurface porous media. Furthermore, these phenomena can reduce capillary pressure enhance spontaneous imbibition. The key factors affecting such process temperature, salinity pH fluids, surfactan...

Abstract Chemical enhanced oil recovery applications continue to face a variety of obstacles, particularly in high saline and high-temperature reservoirs, addition chemical prices. This issue creates difficulty developing optimal recipes that can withstand these extreme circumstances so achieve maximal hydrocarbon at the lowest feasible cost. The usefulness surfactant polymer (SP) mobilizing in...