Chemical oil recovery from offshore reservoirs which are usually characterised by harsh conditions such as high salinities have remained a source of concern. This study assesses chemical compatibilities alkalis –surfactant systems under salinity and divalent ions (Ca2+ Mg2+). It analysed the synergy between alkali-surfactant slugs crude oil, leading to design an optimal low-cost alkaline- surfa...

The Pisum sativum (PS), known as the green pea, was used in this investigation to produce a novel surfactant. performance of PS surfactant also evaluated using various tests, including contact angle, IFT, emulsion, zeta potential, and oil recovery factor measurement presence formation brine (FB) with total dissolved solid (TDS) 150,000 ppm. characterization study tests revealed that nonionic. c...

the chemical surfactant flooding can mobilize the trapped oil by lowering the interfacial tension between oil and brine and in some cases altering the reservoir rock wettability. in this work, the effect of surfactants on oil/brine interfacial tension was experimentally investigated. first, the effect of surfactants concentration was surveyed. afterwards, the effect of salinity on surfactant be...

Production from unconventional oil reservoirs has always been a critical issue for the industry. In this regard, we implemented set of experimental scenarios containing CO 2 /N cyclic injection, foams generated by nitrogen and carbon dioxide, dioxide combined effect surfactant enhanced recovery methods. As water injection reached plateau around two pore volume continued tests different scenario...

Abstract Numerical simulation of surfactant flooding using conventional reservoir models can lead to unreliable forecasts and bad decisions due the appearance numerical effects. The simulations give approximate solutions systems nonlinear partial differential equations describing physical behavior by combining multiphase flow in porous media with transport. approximations are made discretizatio...