BHJ甜菜碱型表活剂的特性评价

通过对两种BHJ甜菜碱型表面活性剂复配体系的界面特性评价,以确定其在大庆油田的适应性。并在此基础上对比了BHJ甜菜碱型表活剂与重烷基苯磺酸盐的吸附损失。同时对适合大庆油田复配体系进行了化学结构的表征及红外光谱分析。评价结果表明:针对不同采油厂,两种BHJ表面活性剂复配的比例不同,但均能形成超低界面张力(<10-3数量级)。无论是在S、SP、ASP体系,磺基甜菜碱的吸附量均低于羧基甜菜碱,羧基甜菜碱的吸附量均低于重烷基苯磺酸盐。

The evaluation of characteristic of the BHJ betaine surfactant

This article discussed the interfacial tension characteristic of the compound systems of two kinds of BHJ betaine surfactants to confirm the suitability in Daqing Oil Field, and contrast the absorption loss of BHJ betaine-type surfactant and heavy alkylbenzene sulfonates.At the same time, we have studied the characterization of the chemical structures and infrared spectra of the samples suited in Daqing Oil Field. The evaluation results show that: According to the different Oil Production Company, the proportion of the two kinds of surfactant forming the compound systems are different, but the interfacial tension of them can also up to ultralow interfacial tension (<10-3 orders of magnitude), In surfactant systems, surfactant-polymer systems and alkali-surfactant-alkali systems, the absorption of sulfosalicylic surfactant is lower than that of carboxyl betaine surfactant, which is lower than that of heavy alkyl benzene sulfonate.