摘要
结合胜利油区开展的低渗透油藏CO_2混相驱先导试验,应用数值模拟方法,利用概念模型和实际油藏模型,确定了影响CO_2混相驱数值模拟结果的主要因素,分析了模型设计及状态方程的选取等因素对CO_2混相驱的影响程度。研究结果表明,网格参数的选取会对模拟结果产生重大影响,模型对储层参数的描述精度也是模拟成败的关键。
Theory of EOR(enhancing oil recovery)by CO_2 miscible dis- placement has been mature.Pilot test of CO_2 miscible displace- ment has been carried out in the low permeability oil reservoir in Shengli Oilfield.Numerical simulation method was applied to de- termine main influencing factors of numerical simulation result with CO_2 miscible displacement by conceptual model and actual reservoir model.The effect degree of the factors of the model de- sign and state equation on the CO_2 miscible displacement was analyzed.The results show that the grid parameter and fluid property will influence the simulation results greatly,and the de- scription accuracy of the model to reservoir parameters is also the key of the success of the simulation.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2008年第4期72-74,共3页
Petroleum Geology and Recovery Efficiency
基金
中国石化重大先导试验项目"低渗透油藏CO_2驱提高采收率先导试验"(P07087)
关键词
二氧化碳
呆收翠
混相驱
数值模拟
CO_2
recovery efficiency
miscible flooding
numerical simulation
