Intermittent steam injection can increase the specific volume, swept volume and utilization ratio of heat, and can improve formation of seepage in oil reservoir so as to improve flooding effect.
间歇注汽法可提高蒸汽比容，提高蒸汽波及体积和热利用率，改善油层渗流特征，达到改善驱油效果的目的。
2
The results show that, the property, the concentration and the injected volume of the surfactant influence the development result of the combined flooding on a great degree;
研究表明：表面活性剂性质、浓度、注入总量等在很大程度上影响着复合驱的开发效果；
3
Polymer volume is an important design parameter in the process of polymer flooding development, and its reasonable design can directly affect the overall effect of polymer flooding.