陕西科技大学学报（自然科学版）2008，Vol.26Issue(4)：36-41,6.
低渗透油藏注CO2气驱提高原油采收率适应性的研究
STUDY OF CO2 FLOODING FOR ENHANCEMENT OF OIL RECOVERY FROM LOW-PERMEABLE RESERVOIR
摘要
Abstract
CO2 flooding to enhance oil recovery from reservoir was studied by core displacement experiments under laboratory level. A comparative analysis of the oil displacement efficiency with various displacing media was conducted by replacing CO2 with water, compressed air and N2. A numerical simulation method was employed to theoretically analyze the efficiency of reservoir recovery with different displacing media (CO2, compressed air and N2), along with to optimize parameters utilized in the experiment. Both experimental and theoretical results show that CO2 flooding has the best oil recovery efficiency, followed by compressed air and N2. The numerical simulation also provided the permeability and remaining oil saturation of CO2 flooding in the real block. The present study demonstrates the potential applicability of gas flooding to enhance oil recovery from the low-permeable reservoirs..关键词
CO2驱/采收率/数值模拟/驱油效率Key words
CO2 flooding/oil recovery enhancement/numerical simulation/displacement efficiency分类
石油、天然气工程引用本文复制引用
祝春生,程林松,崔书姮,张健..低渗透油藏注CO2气驱提高原油采收率适应性的研究[J].陕西科技大学学报（自然科学版）,2008,26(4):36-41,6.基金项目
国家重点基础研究发展计划(973项目)"温室气体提高石油采收率的资源化利用及地下埋存"(2006CB705808) （973项目）
