注二氧化碳提高原油采收率技术研究进展  

Research progress on CO_2 EOR technology

作　　者：高慧梅[1] 何应付[1,2] 周锡生[1] 

机构地区：[1]中油大庆油田有限责任公司,黑龙江大庆163712 [2]西南石油大学,四川成都610500

出　　处：《特种油气藏》2009年第1期6-12,共7页Special Oil & Gas Reservoirs

基　　金：国家科技支撑计划课题“二氧化碳气驱提高采收率试验研究”(2006BAB03B06)

摘　　要：综述了国内外CO2驱技术的应用和研究进展。首先对世界注CO2采油的发展现状进行了统计分析,指出注CO2驱油适用油藏参数范围较宽,提高采收率幅度较大,以逐年增长的态势和显著的成效成为未来提高原油采收率主要技术之一。进一步分析了CO2的驱油机理、筛选标准和开发设计技术研究进展,特别是近年来发展的近混相驱替理论、模糊层次分析法以及注CO2驱的井网类型和注入方式。最后结合目前CO2采油存在的腐蚀和波及体积较小的问题,提出了今后的发展方向。This paper reviews the application and research progress of CO2 flooding, and statistically analyzes present development status of oil recovey by CO2 injection in the world. It is pointed out that CO2 injection is widely applicable, can substaintially improve oil recovery factor, and will become one of the major EOR techniques in the future. The mechanism of oil displacement by CO2 injection, the screening criteria and the research progress in development designing are further analyzed, especially the theory of approximate miscible displacement, fuzzy analytical hierarchy process, and the pattern type and injection method of CO2 flooding. At last, future development trend is suggested in accordance with current problems of corrosion and small swept volume in CO2 oil recovery process.

关 键 词：二氧化碳 驱油机理 注采方式 发展趋势 采收率 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]