With same volume, alternative injection of polymer with high relative molecular quality and alkali/surfactant has better effect than ASP flooding, and can solve the problem of usage of produced water.

• 在用量相同的条件下，高相对分子质量聚合物与碱／表面活性剂交替注入驱油效果好于三元复合驱，并可解决污水利用问题。