Synergistic Effect of Nano composite- Natural Surfactant Dispersed in LowSalinity and on Oil Recovery: wettability alteration and Interfacial tensionreduction

Solution nanofluids were prepared by dispersing γ-Al۲O۳ and SiO۲ NPs (۰.۱wt%) in deionized water,synthetic seawater by ۲, ۵ and ۱۰ times diluted samples of synthetic seawater. Next, interfacialtension (IFT) and micromodel flooding tests were conducted for nanofluids that were stable for alonger period of time. IFT measurements revealed important role of temperature, where increase intemperature causes decrease in IFT of the injected fluid, which affects the sweep efficiency in porousmedia. It was found that the micromodel flooding of dispersed NPs in brine with improves the oilrecovery factor, which was due to the ability of modified NPs to reduce the IFT between crude oiland injected nanofluids.

کلیدواژه ها:

Nano composite ، Low salinity water ، Gum arabic ، IFT ، Micromodel