化学
材料科学
化学工程
铵
烷基
盐(化学)
表面张力
羧酸盐
肺表面活性物质
相(物质)
水溶液
碳酸盐
无机化学
盐度
作者
Bao Xinning,Zhang Weidong,Jin Jun,Hui Zhang,Hong-Ze Gang,Shi-Zhong Yang,Yingcheng Li,Bo-Zhong Mu
标识
DOI:10.1016/j.petrol.2021.109541
摘要
Abstract A novel formula of anionic surfactants with propoxy (PO) and ethoxy(EO) groups and cationic surfactants was developed and temperature and salt resistance performance of the formula has been studied with both model oil and crude oil. An obvious synergistic effect was evidenced by CMC values and interaction parameters of nonylphenol polyether carboxylate, hexadecyltrimethylammonium chloride and their mixtures. Effect of molar ratio of anionic surfactant and cationic surfactant, temperature, salinity, concentration and oil-water ratio on phase behavior and interfacial tension were investigated systematically. The results demonstrate that ultra-low interfacial tension and excellent phase behavior were obtained at temperature up to 120 °C and a wide range of salinity, which shows promising for enhanced oil recovery.
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