Gas/water foams stabilized with a newly developed anionic surfactant for gas mobility control applications

作     者：Mohammed AAlmobarky Zuhair AlYousif David Schechter Mohammed A.Almobarky;Zuhair AlYousif;David Schechter

作者机构：Department of Petroleum and Natural Gas EngineeringCollege of EngineeringKing Saud UniversityRiyadhKingdom of Saudi Arabia Saudi AramcoDhahranKingdom of Saudi Arabia Harold Vance Petroleum Engineering DepartmentTexas A&M UniversityCollege Station TXUSA 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2020年第17卷第4期

页      面：1025-1036页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0820[工学-石油与天然气工程] 0707[理学-海洋科学] 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] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0703[理学-化学] 0813[工学-建筑学] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 0814[工学-土木工程] 082002[工学-油气田开发工程] 

主　　题：Supercritical CO2 foam Foam mobility control Foam flooding Enhanced oil recovery(EOR) Foam assisting CO2 EOR 

摘      要：Carbon dioxide(CO2) flooding is one of the most globally used EOR processes to enhance oil ***,the low gas viscosity and density result in gas channeling and gravity override which lead to poor sweep *** application for mobility control is a promising technology to increase the gas viscosity,lower the mobility and improve the sweep efficiency in the *** is generated in the reservoir by co-injection of surfactant solutions and *** there are many surfactants that can be used for such purpose,their performance with supercritical CO2(ScCO2) is weak causing poor or loss of mobility *** experimental study evaluates a newly developed surfactant(CNF) that was introduced for ScCO2 mobility control in comparison with a common foaming agent,anionic alpha olefin sulfonate(AOS) *** work was divided into three stages:foam static tests,interfacial tension measurements,and foam dynamic *** surfactants were investigated at different *** general,results show that both surfactants are good foaming agents to reduce the mobility of ScCO2 with better performance of CNF *** tests in the presence of crude oil show that the foam life for CNF extends to more than 24 h but less than that for ***,CNF features lower critical micelle concentration(CMC),higher adsorption,and smaller area/molecule at the liquid-air ***,entering,spreading,and bridging coefficients indicate that CNF surfactant produces very stable foam with light crude oil in both deionized and saline water,whereas AOS was stable only in deionized *** all conditions for mobility reduction evaluation,CNF exhibits stronger flow resistance,higher foam viscosity,and higher mobility reduction factor than that of AOS *** addition,CNF and ScCO2 simultaneous injection produced 8.83% higher oil recovery than that of the baseline experiment and 7.87% higher than that of *** drop profiles