油气地质与采收率2026，Vol.33Issue(1)：85-96,12.DOI:10.13673/j.pgre.202509005
胜利油田化学驱三十年攻关实践与展望
Thirty years of research and practice on chemical flooding in Shengli Oilfield and its prospects
摘要
Abstract
Shengli Oilfield is an important oil production and supply base in China,and its main oil reservoirs have generally entered the stage of ultra-high watercut and high recovery,making high-temperature and high-salinity reservoirs the replacement development battlefield.However,due to the constraints of high formation temperature,high salinity of formation water,heavy oil,and scattered distribution of remaining oil,traditional chemical flooding technology has insufficient adaptability in high-temperature and high-salinity reservoirs,facing the bottlenecks of improving economic benefits and recovery.In response to this challenge,researchers from Shengli Oilfield,after over 30 years of theoretical innovation and technological breakthroughs,have developed a theoretical system that includes polymer flooding,additive synergy of polymer,and additive synergy of oil displacement agents,and a technical series of polymer flooding,alkali-free binary composite flooding,and heterogeneous composite flooding.These innovations have successfully overcome the challenge of significantly enhancing oil recovery in reservoirs characterized by formation temperatures of 85 ℃,formation water salinity of 30 000 mg/L,and subsurface crude oil viscosity of 2 000 mPa·s.As of June 2025,chemical flooding in high-temperature and high-salinity reservoirs of Shengli Oilfield has reached a produced geological reserve of 6.7×108 t and a cumulative oil production of 8 235×104 t,with a recovery increase of 9.9 percent points,up to 52.7％.Chemical flooding technology for high-temperature and high-salinity reservoirs is a key guarantee for the sustained,stable production and high-quality development of Shengli Oilfield.The practice of Shengli Oilfield has shown that original innovation is the driving force for technological breakthroughs;integrated innovation is an important means of technological upgrading;iterative innovation is the catalyst for sustainable technological development,and technological synergy is the inevitable trend for mature oilfields to significantly improve recovery rates.With the increasingly stringent conditions of high-temperature and high-salinity reservoirs,it is necessary to develop a theory of multi-dimensional synergistic enhanced oil recovery in the future,tackle new technologies for multi-dimensional synergistic enhanced oil recovery,and provide support for the sustained and stable production of chemical flooding in high-temperature and high-salinity reservoirs.关键词
高温高盐油藏/化学驱油理论/化学驱技术/迭代升级/提高采收率Key words
high-temperature and high-salinity reservoir/chemical flooding theory/chemical flooding technology/iterative upgrade/enhanced oil recovery分类
能源科技引用本文复制引用
曹小朋,杨勇,元福卿,季岩峰,巩锦程,陈兴锋..胜利油田化学驱三十年攻关实践与展望[J].油气地质与采收率,2026,33(1):85-96,12.基金项目
中国石化"十条龙"科技攻关项目"胜利油田高温高盐油藏化学驱大幅度提高采收率技术"(P21036),国家科技重大专项"高温高盐油藏提高采收率技术与集成示范"(2025ZD1407100). （P21036）
