摘要
在经济条件允许的前提下追求更高的原油采收率,是油田开发工作的核心,储层非均质性及层内流体渗流特征,是所有提高采收率技术的基础。本文应用油藏数值模拟方法开展油藏渗流影响因素研究,通过建立三维非均质储层模型进行油藏数值模拟分析,进一步深化剩余油分布规律及化学驱提高采收率机理研究,研究表明:非均质储层在注水开发过程中出现的开发矛盾,通过化学驱调整渗流场可得到缓解,并且随着驱替液与地层流体黏度比增高,采收率提高幅度呈上升趋势。研究成果对油藏高效开发管理、剩余油分布规律认识及三次采油方案部署、优化具有理论指导意义。
It is the core of oilfield development to pursue higher oil recovery under the premise of economic conditions.The research on reservoir heterogeneity and fluid flow characteristics is the basis of all EOR technologies.This paper studies the influencing factors of reservoir seepage by using reservoir numerical simulation method.Through the establishment of three-dimensional heterogeneous reservoir model,the reservoir numerical simulation analysis is carried out,and the distribution law of remaining oil and the mechanism of chemical flooding to improve recovery rate are further deepened.The research shows that the development contradiction of heterogeneous reservoir in the process of water injection development can be relieved by adjusting the seepage field by chemical flooding.And with the increase of the viscosity ratio of displacement fluid to formation fluid,the recovery enhancement increases.The research results have theoretical significance for the reservoir management,the understanding of the distribution of remaining oil,the deployment and optimization of the tertiary oil production plan.
作者
梁斌
任瑞川
程琦
曾济楚
LIANG Bin;REN Ruichuan;CHENG Qi;ZENG Jichu(PetroChina,The Fifth Oil Production Plant of Dagang Oilfield Branch,Tianjin 300280,China)
出处
《石油化工应用》
CAS
2021年第12期56-60,共5页
Petrochemical Industry Application
关键词
数值模拟
储层非均质
油藏
化学驱
渗流
采收率
numerical simulation
reservoir heterogeneity
reservoir
chemical flooding
seepage
recovery factor
作者简介
梁斌(1985-),男,高级工程师,2012年硕士毕业于长江大学地球探测与信息技术专业,现在大港油田公司第五采油厂从事油藏开发研究工作,邮箱:c5_liangb@petrochina.com.cn。
