无碱二元体系石油磺酸盐驱油效果及影响因素研究

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作者单位:: 1.中国石油大庆炼化公司化工生产三部，黑龙江大庆163411；2.大庆油田勘探开发研究院，黑龙江大庆16341；3.中国石油大庆炼化公司研究院，黑龙江大庆163411
1. Third Chemical production department of PetroChina Daqing Refining & Petrochemical Company，Daqing 163411，China； 2. Daqing oilfield exploration and development research institute，Daqing 163412，China；3. Research Institute of PetroChina Daqing Refining & Petrochemical Company，Daqing 163411，China

关键词:: 石油磺酸盐；无碱二元体系；驱油；抗吸附性
petroleum sulfonate；alkali-free binary system；oil displacement；anti-adsorption

摘要:: 摘要：二元体系（聚合物—表面活性剂）与三元体系比较，因为没有了碱的协同作用，仅仅依靠

低的界面张力，很难达到三元体系的驱油效果。为提高二元体系驱油效果，除优化产品配方

外，还需综合考虑提高体系抗吸附性能、产品乳化性能等。文中通过开展室内驱替实验，研究

了无碱二元复配体系（简称二元体系）中石油磺酸盐浓度、油水界面张力、二元体系吸附性、乳

化性等因素对驱油效果的影响。

Abstract: Compared with the ternary system, the binary system (polymer surfactant) is difficult to achieve the oil displacement

effect of the ternary system due to the lack of the synergistic effect of alkali and the low interfacial tension. In order to improve the

oil displacement effect of the binary system, in addition to optimizing the product formula, it is also necessary to comprehensively

consider improving the anti-adsorption performance of the system and the emulsification performance of the product. In this paper,

the influence of petroleum sulfonate concentration, oil-water interfacial tension, adsorption of binary system, emulsification and

other factors on oil displacement effect in alkali-free binary composite system (referred to as binary system) has been studied

through laboratory displacement experiments.