国外CO_2驱油防止粘性指进和重力超覆工艺  

The Technology of Preventing CO_2 Breakthrough and Gravity Segregation Abroad

作　　者：杨彪[1] 唐汝众[1] 栾传振[1] 蒋维红[1] 

机构地区：[1]胜利油田股份有限公司采油工艺研究院

出　　处：《断块油气田》2003年第2期64-66,共3页Fault-Block Oil & Gas Field

摘　　要：在简述粘性指进和重力超覆的基础上 ,对国外采取的工艺措施进行了调研。针对广泛使用的水气交替注入 (WAG)法 ,介绍了设计原则、注入方案及存在的不足。泡沫注入法是在WAG法的基础上发展起来的 ,其关键在于表面活性剂的筛选和使用。最后简要介绍了国外最新研究的稠化泡沫的原理和试验效果。Based on the brief description of the principle and phenomenon of CO 2 breakthrough and gravity segregation,this paper investigates the technology abroad.WAG is a widely used method ,its devise principle,scheme and shortage are introduced.Foam flooding is developed based on WAG,its key point is how to select and use the surfactant.The principle and laboratory investigation of gel foam that is new abroad is also discussed.

关 键 词：CO2驱油 混相驱 表面活性剂 稠化泡沫 气水交替注入 采收率 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]