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

作     者：Amin Garmroudi Mahdi Kheirollahi Sayed Amirhosein Mousavi Moslem Fattahi Elaheh Hamed Mahvelati 

作者机构：Department of Petroleum EngineeringAbadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran Department of Chemical EngineeringAbadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran Department of Basic SciencesAbadan Faculty of Petroleum EngineeringPetroleum University of Technology(PUT)AbadanIran 

出 版 物：《Petroleum》 (油气（英文）)

年 卷 期：2022年第8卷第4期

页      面：476-482页

核心收录：

学科分类：081702[工学-化学工艺] 0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 07[理学] 08[工学] 070205[理学-凝聚态物理] 0820[工学-石油与天然气工程] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0702[理学-物理学] 

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

摘      要：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 hydrocarbon.Amongst different material used for tertiary oil recovery,surfactant injection has proved very promising solutions,such as interfacial tension reduction and wettability alteration.Without any harm to the environment and meanwhile being economically feasible,natural surfactants have been attracted researchers in recent years.Cedr extraction which is produced from Zizyphus Spina Christi leaves has shown some beneficial characteristics like IFT reduction and wettability alteration.However,the amount of IFT reduction is not considerable,so we decided to augment its effectiveness by adding two different nanoparticles.In 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 recovery.The concentration of 0.05 wt percent showed the lowest IFT in both solutions.At this concentration,the IFT of GO/TiO_(2)-augmented solution and GO-augmented solution were measured of 10.5 and 12.3 mN/m,respectively.While the bare Cedr solution showed 23.8 mN/m at its critical micelle concentration.The coreflooding tests were also performed at the aforementioned concentrations.Final 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 case.Scanning Electron Microscopy images were also taken from the rock samples exposed to nanofluids to investigate any severe harm to the permeability.Images showed low tendency of both particles to adsorb on rock surface and plug large pores.