经过5年多的现场实践证明,聚表剂驱见效特征明显,中心采出井综合含水由100%下降到82.5%,下降17.5个百分点,实现了油层水驱极限含水条件下化学驱提高采收率20%以上的好效果,为大庆油田薄差油层高效开发提供了技术保障。 After more than five years of field practice, it has been found that the effective performance of poly-surfactant flooding is obvious. The comprehensive water production in the central production well decreased from 100% to 82.5%, down by 17.5%, realizing chemical flooding and enhanced oil recovery under water-flooding limited water conditions Good results of over 20% provide technical support for the efficient development of thin and poor reservoirs in Daqing Oilfield.