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引言三次采油技术中研究和应用较多的是包含表面活性剂的各种化学驱油技术,包括三元复合驱、二元复合驱以及表面活性剂驱等。表面活性剂在这些驱油技术中起着重要作用[1],它主要是通过降低油水界面张力和提高毛细管数达到提高采收率的目的。对于普通油藏,表面活性剂驱油剂的研究比较成功,应用效果也比较理想,
Introduction The research and application of tertiary recovery techniques are a variety of chemical flooding technologies that include surfactants, including ternary flooding, binary flooding and surfactant flooding. Surfactants play an important role in these oil displacement technologies [1]. They mainly aim to improve oil recovery by reducing the interfacial tension of oil and water and increasing the number of capillaries. For ordinary reservoirs, the research of surfactant flooding agent is more successful and the application effect is also ideal,