Effect of water salinity on oil/brine interfacial behaviour during low salinity waterflooding: A mechanistic study

作     者：Peyman Rostami Mohammad Fattahi Mehraban Mohammad Sharifi Morteza Dejam Shahab Ayatollahi 

作者机构：Department of Petroleum EngineeringAmirkabir University of Technology(Polytechnic of Tehran)TehranIran Department of Petroleum EngineeringCollege of Engineering and Applied ScienceUniversity of WyomingLaramieUSA Department of Chemical and Petroleum EngineeringSharif University of TechnologyTehranIran 

出 版 物：《Petroleum》 (油气（英文）)

年 卷 期：2019年第5卷第4期

页      面：367-374页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

主　　题：Water salinity Wettability Interfacial tension Oil/brine interface Low salinity waterflooding 

摘      要：In recent years,controlling the salinity and composition of the injected water has become an emerging enhanced oil recovery(EOR)technique,often described as low salinity(LS)*** work is done with the intention to contribute to the ongoing discussions about LS waterflooding mechanism(s).For this purpose,a series of different experiments were *** first,the effect of salinity on the interfacial tension(IFT)and the contact angle was evaluated with a crude oil *** to achieve more accurate results in observing oil/water interface,similar IFT experiments were also carried out on a synthetic oil containing ***,microscopic visualization using glass micromodel was performed on the interface of the synthetic oil sample and *** brine solutions including Sea Water(SW),it s dilutions and formation water(FW)were used for various ***,to investigate the presented mechanism by other authors,a series of Environmental Scanning Electron Microscopy(ESEM)analysis on the synthetic oil was carried out to understand better the phase behaviour after contacting both synthetic oil and water phases from the micromodel *** on the existing mechanism,there exists an optimal concentration beyond which dilution is no longer an effective process.