低渗透油藏CO_(2)驱开发规律及采收率预测研究  

Research on the Development Law and Recovery Prediction of CO_(2) Flooding in Low Permeability Reservoirs

作　　者：韩文成 Han Wencheng(Exploration and Development Research Institute,Shengli Oilfield,SINOPEC,Dongying 257015)

机构地区：[1]中国石化胜利油田分公司勘探开发研究院,山东东营257015

出　　处：《石化技术》2024年第5期281-282,93,共3页Petrochemical Industry Technology

基　　金：中国石化胜利油田分公司项目“低渗透油藏CO_(2)驱油过程中封存机理研究”(YKB2306)。

摘　　要：低渗透油藏储层物性差,注水开发注入困难、注采见效差。CO_(2)注入能力强,CO_(2)驱可实现提高采收率和CO_(2)地质封存双赢,是石油行业践行绿色低碳发展的重要途经。针对储层物性、油藏压力水平等对CO_(2)驱油效果影响规律不明晰的问题,采用不同渗透率岩心,在不同压力下开展了CO_(2)驱实验研究,分析了不同条件下CO_(2)驱开发规律,建立了CO_(2)驱采收率预测模型,为低渗透油藏CO_(2)驱高效开发提供基础指导。Poor physical properties of low permeability reservoirs making it difficult to inject water for development and resulting in poor production efficiency.CO_(2) is easier to inject than water,CO_(2)flooding can improve oil recovery and store CO_(2) underground,which is an important way for the petroleum industry to practice green and low-carbon development.In response to the unclear impact of reservoir rock properties and reservoir pressure levels on the effectiveness of CO_(2) flooding,this study conducted CO_(2) flooding experiments using cores with different permeability and under different pressures.The development laws of CO_(2)flooding were analyzed,and a CO_(2)flooding recovery rate prediction model was established to provide basic guidance for the efficient development of CO_(2)flooding in low-permeability reservoirs.

关 键 词：低渗透油藏 CO_(2)驱 开发规律 采收率 

分 类 号：TE3[石油与天然气工程—油气田开发工程]