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Nanofluid based on 1-dodecylpyridinium chloride for enhanced oil recovery

Petroleum Science 2023年第1期20卷 600-610页

作者： Akram Al-Asadi Alba Somoza Alberto Arce eva rodil Ana Soto CRETUS.Department of Chemical Engineering Universidade de Santiago de CompostelaE-15782Santiago de CompostelaSpain Chemical and Petrochemical Techniques Eng.Department Basra Engineering Technical CollegeSothern Technical UniversityMinistry of Higher Education and Scientific ResearchIraq School of Engineering Universidade de A CorunaE-15403FerrolSpain

The use of nanoparticles is considered promising for enhanced oil recovery(EOR),especially when they are combined with ***,the combination of nano-sized material with surface-active ionic liquids(SAILs)is an unexplored EOR *** this work,the advantages of mixing Al2O3 nanoparticles with the SAIL 1-dodecylpyridinium chloride were *** nanofluids in brine could only be achieved using the polymer polyvinylpyrrolidone(PVP)as a stabilizing *** was found that the addition of nanoparticles(and PVP)to the surfactant formulation helped to:slightly increase its viscosity,enhance its water-oil interfacial tension(IFT)reduction capacity,and reduce the adsorption on carbonate rocks(adsorption on sandstone was found to be excessive).IFT was selected as target property to minimize for the design of EOR *** flooding tests were carried out with surfactant(0.5 wt%[C_(12)py]Cl),surfactant-polymer(0.5 wt%[C_(12)py]Cl,1.0 wt%PVP)and nanofluid(0.05 wt%Al_(2)O_(3),1.0 wt%PVP,0.5 wt%[C12py]Cl)formulations in brine(0.5 wt%NaCl).Additional oil recoveries of 3.4%,7.4%and 12.0%OOIP were achieved,respectively,the nanofluid formulation being the most promising for the ***,it was found capable of changing the wettability of carbonate rocks from oilwet to *** significance of this work lies in showing the new possibilities resulting from the combination of SAILs and nanoparticles for EOR,specifically the combination of[C_(12)py]Cl with Al_(2)O_(3).

关键词： Nanofluid Viscosity Interfacial tension Adsorption Wettability EOR

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