两亲聚合物/表面活性剂复合体系自乳化稠油研究

Study on the self-emulsified heavy oil by using amphiphilicpolymer/surfactant mixtures

针对稠油黏度高、流动性差、开采难度大等问题,研制了一种稠油冷采自乳化复合体系。利用瓶试法、稳定性分析仪、光学显微镜和流变仪对复合体系组分进行筛选及性能评价,得到自乳化复合体系配方为0.2%月桂基葡糖苷+750 mg/L两亲聚合物AP-C16。结果表明,在80℃条件下,通过翻转样品瓶月桂基葡糖苷即可将稠油完全乳化,月桂基葡糖苷与两亲聚合物AP-C16复合可增加乳状液的稳定性,稳定时间超过60 min,降黏率达到97%以上。

Aiming at the problems of heavy oil such as high viscosity,poor fluidity and difficulty in exploitation,a heavy-oil self-emulsifying composite system for cold oil recovery was developed.The bottle test method,stability analyzer,optical microscope and rheometer were used to evaluate the components of the system.The formula of the self-emulsifying composite system was 0.2% lauryl glucoside+750 mg/L amphiphilic polymer AP-C16.The results showed that,at 80℃,the heavy oil could be completely emulsified with lauryl glucoside by tube turning.The mixture of lauryl glucoside and AP-C16 could increase the stability of the emulsion,in which the stabilization time exceeded 60 min,and the viscosity reduction rate reached more than 97%.