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Effects of graphene oxide/TiO_(2) nanocomposite,graphene oxide nanosheets and Cedr extraction solution on IFT reduction and ultimate oil recovery from a carbonate rock

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Petroleum 2022年第4期8卷 476-482页

作者： Amin Garmroudi Mahdi Kheirollahi Sayed Amirhosein Mousavi Moslem Fattahi elaheh hamed mahvelati Department of Petroleum Engineering Abadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran Department of Chemical Engineering Abadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran Department of Basic Sciences Abadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran

Increasing the number of depleted reservoirs and global demand for energy have left us with low alternative but to use new ways to extract more *** different material used for tertiary oil recovery,surfactant injection has proved very promising solutions,such as interfacial tension reduction and wettability *** any harm to the environment and meanwhile being economically feasible,natural surfactants have been attracted researchers in recent *** extraction which is produced from Zizyphus Spina Christi leaves has shown some beneficial characteristics like IFT reduction and wettability ***,the amount of IFT reduction is not considerable,so we decided to augment its effectiveness by adding two different *** this investigation,three concentrations(0.01,0.05 and 0.1 wt%)of both graphene oxide(GO)nanosheet and GO/TiO_(2) nanocomposite was added to Cedr extraction solution to study their potential on IFT reduction and improving the ultimate oil *** concentration of 0.05 wt percent showed the lowest IFT in both *** this concentration,the IFT of GO/TiO_(2)-augmented solution and GO-augmented solution were measured of 10.5 and 12.3 mN/m,*** the bare Cedr solution showed 23.8 mN/m at its critical micelle *** coreflooding tests were also performed at the aforementioned *** oil recovery reached to 65%of original oil volume in GO/TiO_(2)-augmented solution,compared to 56% in GO-augmented solution case and 40%in bare Cedr solution *** Electron Microscopy images were also taken from the rock samples exposed to nanofluids to investigate any severe harm to the *** showed low tendency of both particles to adsorb on rock surface and plug large pores.

关键词： Cedr extraction Coreflooding GO nanosheet GO-TiO_(2)nanocomposite IFT reduction Enhanced oil recovery

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