The investigation results in this part would provide the theoretical and practical guide for employing cationic Gemini surfactants to change the wettability of reservoir, so as to enhance oil displacement efficiency.

• 通过本部分的研究,为运用阳离子双子表面活性剂改变油藏岩石润湿性,从而有利于提高驱油效率提供了理论和实践方面的指导。