The experimental results show that surfactant not only reduces IET, hut also accelerate the emulsification of oil;salt is sensitive to the phase behavior changes of the compound system.

• 实验结果表明，表面活性剂除了能降低界面张力外，还有利于增加体系的粘度，碱能促进原油的乳化，盐对复合体系相行为变化比较敏感。