烷基糖苷与重烷基苯磺酸盐复配体系性能研究

摘要

A new type of binary complex oil-displacement system was formulated by the mixture of non-ionic surfactant alkyl glucoside and anionic surfactant heavy alkylbenzene sulfonate in 1 :1 mass ratio and the partly-hydrolyzed polyacrylam-ide. The laboratory experiments have showed that the interfacial tension between this complex formulation system and Daqing crude oil can be extreme-ly low at 45～80℃ , and that this system is quite effective in resistance to salt and divalent cations. In addition, this binary complex formulation system can further improve recovery efficiency after water flooding, and start and displace residual oil after polymer flooding.%用质量比为1∶1的非离子表面活性剂烷基糖苷和阴离子表面活性剂重烷基苯磺酸盐的复配物,与部分水解聚丙烯酰胺组成了一种新型的二元复合驱油体系.室内实验研究结果表明:复配后的二元体系与大庆原油之间的界面张力值在45～80℃之间可达到超低,并且具有较好的抗盐和抗二价离子的性能；此二元复合体系在水驱后能进一步提高采收率,在聚驱后能进一步启动和驱替残余油.