【Key words】 High temperature and salinity； Surfactant/polymer flooding； Interfacial tension； System selection； Plug optimization； Enhanced oil recovery；
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并在数模优化组合驱段塞构成的基础上，对不同渗透率的天然岩心与人造岩心进行了驱油实验。
Based on numeral simulation result of combination flooding composing, oil displacement experiments are carried out in different penetration ratio natural core and artificial core.
对于非均质岩心，聚合物对驱油效率的贡献大于表面活性剂的贡献，此外还对三元段塞注入的大小和浓度进行了优化。
To heterogeneous core, the contribution of polymer to the displacement efficiency is higher than that of surfactant. The size of the ASP slug and the concentration of chemicals were also optimized.
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