新型羧基甜菜碱BS13表面活性剂体系的界面张力及驱油效果

Flooding effect and interfacial tension of carboxyl BS13 surfactant

测定新型羧基甜菜碱BS13及其复配体系的界面张力,研究加入磷酸钠对体系界面张力的影响,确定体系中BS13及磷酸钠的最佳比例;应用复配体系进行驱油效果的评价,并同现场常用的强碱三元体系的驱油效果进行对比.结果表明,BS13复配体系的驱油效果好于现场常用的强碱三元体系的驱油效果.

This paper deals with the research on the measurement of interracial tension of the new kind carboxyl BS13 surfactant and its compound systems,and the effect of sodium phosphate on the system's interfacial tension to determine the optimal proportion of BS13 and sodium phosphate.The effect of the compound flooding system has been evaluated and compared with the effect of ternary compound flooding system with alkali in the field.The results show that the effect of the former system is better than the latter one.