特种油气藏2012，Vol.19Issue(1)：82-84,3.
低渗透油藏CO2驱注入方式优化
摘要
Abstract
The displacement efficiency of different scenarios has been studied through numerical simulation based on the conditions of a low permeability reservoir in Jillin oilfield. The simulation results indicate that alternating flooding can significantly improve oil recovery compared with water flooding and continuous gas flooding. In the process of alternating flooding, the order of gas and water slugs has a notable impact on oil recovery. Gas - alternating - water flooding is superior to water - alternating - gas flooding. The recovery factor increases with the increasing of gas injection rate. In gas - alternating - water process, CO2 can fully contact with crude oil, and the earlier CO2 is injected, the more favorable for enhanced oil recovery. The research has provided theoretical basis for CO2 flooding in low permeability reservoirs as well as meaningful reference in evaluating and planning of CO2 underground storage in China.关键词
低渗透油藏/CO2驱/交替驱替/提高采收率/数值模拟Key words
low permeability reservoir/ CO, flooding/ alternating flooding/ enhanced oil recovery/ numerical simulation分类
能源科技引用本文复制引用
钟张起,吴义平,付艳丽,吴桂晶,刘鹏程..低渗透油藏CO2驱注入方式优化[J].特种油气藏,2012,19(1):82-84,3.基金项目
国家科技重大专项"CO2驱油与埋存潜力评价及战略规划"(2011ZX05016),国家自然科学基金重点支持项目"提高低渗透油气田采收率的气润湿反转理论和方法"(51034004) （2011ZX05016）
