摘要
对埋藏深、油层薄、含油饱和度或孔隙度小的中等粘度稠油油藏来说，采用热采法开采不经济，需寻求一种开采效果比较好的非热采方法。该本通过对非混相二氧化碳开采稠油的室内研究和矿场试验的调研，证明非混相二氧化碳是开采这类稠油油藏的有效方法。
Since thermal recovery is not economic for the heavy oil reservoir with deep reservoir depth,thin oil bed,low oil saturation or low porosity and medium viscosity,so new non-thermalmethod with good production efficiency should be found. Based on the investigation of laboratory research and field test data on heavy oil recovery by immiscible CO2 flooding, this paper shows that immiscible CO2 flooding is an effective method for producing this kind of reservoir.
关键词
二氧化碳驱油
稠油油藏
提高采收率
CO_2 flooding
immiscible flooding
huff and puff
oil production
heavy oil reservoir
recovery factor
