石油勘探与开发2018，Vol.45Issue(2)：305-311,7.DOI:10.11698/PED.2018.02.13
三元复合驱靶向输送提高采收率技术
An enhanced oil recovery technique by targeted delivery ASP flooding
摘要
Abstract
Aiming at the problem of the loss of the ASP flooding near the injection wells,this paper gives a new idea to enhance oil recovery called "Technique of Targeted Delivery",which combines the radial horizontal well with ultra-short radius drilled by high pressure water jet with the ASP flooding,the horizontal wells work as the "Target channel" transport the ternary composite system to the remaining oil enrichment area directly,to avoid the loss of the ternary composite system near the injection wells.The plate homogeneous experiment and numerical simulation show that the technique can significantly improve the sweep efficiency and the effect of the oil displacement,and greatly improve the oil recovery rate.The optimal flooding parameters of the target transport technique are:the right angle target,the length of the channel is about 15％ of the well distance and the injection volume of the ternary composite system is 0.4 PV.Under such conditions,this technique can enhance recovery by 48.87％ and 22.04％ respectively,compared with the water flooding and conventional ASP flooding.The target transport technique solves the problem of high loss of chemical agent in near-wellbore area during the ASP flooding,and compensates for the high cost of ASP flooding and the limitation of application,and has a broad application prospect.关键词
三元复合驱/靶向输送/平板模型/参数优化/提高采收率Key words
ASP flooding/targeted delivery/plate model/parameter optimization/enhanced oil recovery分类
能源科技引用本文复制引用
吴凡,侯吉瑞,汪志明,马云飞,王东营..三元复合驱靶向输送提高采收率技术[J].石油勘探与开发,2018,45(2):305-311,7.基金项目
国家自然科学基金项目“ASP复合驱油藏油水界面张力变化规律及残余油启动机制研究”(51174216) （51174216）
国家科技重大专项“油田开采后期提高采收率技术”(2011ZX05009-004) （2011ZX05009-004）
