摘要
二氧化碳驱油作为一项提高原油采收率的技术已被广泛应用于各大油田。二氧化碳可溶解于原油中,具有降低原油黏度、膨胀原油、降低界面张力等效果。目前针对稀油油藏,二氧化碳混相驱或非混相驱技术的发展已非常成熟,并在各大油田都有应用。然而二氧化碳在提升稠油采收率方面仍然存在着许多技术问题。综述了二氧化碳提高稠油采收率的技术应用以及最新室内研究成果,模拟计算结果等,分析了这些适用的油藏条件,为今后稠油开采技术的发展提供参考。
Carbon dioxide flooding has been widely used in the oil fields as an enhanced oil recovery technology.CO2 can dissolve in heavy oil to reduce the viscosity and oil-water interfacial tension.For the major oil reservoir,carbon dioxide miscible flooding and immiscible flooding technology is mature.However,there are still many barriers in the technology of CO2 assisted enhanced heavy oil recovery.In this paper,domestic and foreign technologies about CO2 assisted enhanced heavy oil recovery and latest research results with simulation method are reviewed.By analyzing the reservoir conditions,this paper provides a reference for the development of this kind of technology in the future.
作者
张立
张卫东
沈之芹
沙鸥
李应成
Zhang Li;Zhang Weidong;Shen Zhiqin;Sha Ou;Li Yingcheng(China Petroleum&Chemical Corporation Key Laboratory of Surfactant for Enhanced Oil Recovery,Shanghai Research Institute of Petrochemical Technology,Shanghai 201208,China)
出处
《化学世界》
CAS
CSCD
2020年第11期727-732,共6页
Chemical World
关键词
二氧化碳
稠油
提高采收率
carbon dioxide
heavy oil
enhanced oil recovery
