Aiming at the harsh conditions of reservoir and development difficulties in Shengli Oilfield, this thesis relates the technologies for developing such as heterogeneous combination flooding in after polymer flooding reservoir, surfactant/polymer flooding in high salinity and high viscosity reservoir, polymer flooding in high temperature and high salinity reservoir. It focuses on the oil displacement mechanism, key technology, field application and engineering economics. According to the current research progress, it points out that the further development of enhanced oil recovery technologies in low permeability reservoirs in hostile environments, in high temperature and high calcium/magnesium reservoir.%针对胜利油田苛刻的油藏条件及开发难点，介绍了聚合物驱后油藏非均相复合驱、高盐高黏油藏二元复合驱、高盐高钙镁油藏聚合物驱等化学驱新技术，重点介绍了各项技术的驱油机理、技术关键、矿场应用效果及技术经济性。根据目前的研究进展，阐述了高温高盐低渗透油藏、高温高盐高钙镁型油藏所适用化学驱技术的发展方向。
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