延长油田注水井缓速酸配方体系研究  

Study on retarded acid formula system of water injection wells in Yanchang oilfield

作　　者：周凯 陈西泮[2] 宋珈萱[3] ZHOU Kai;CHEN Xipan;SONG Jiaxuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710061,China;Exploration Department of Yanchang Oilfield Co.,Ltd.,Yan’an 716000,Shaanxi China;Research Institute of Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi’an 710075,China)

机构地区：[1]长安大学地球科学与资源学院,陕西西安710061 [2]延长油田股份有限公司勘探部,陕西延安716000 [3]陕西延长石油(集团)有限责任公司研究院,陕西西安710075

出　　处：《粘接》2022年第5期32-35,55,共5页Adhesion

摘　　要：针对延长油田传统酸化工艺存在酸岩反应速度快、穿透距离短、酸化效果差的缺点,开展缓速酸化技术研究,优化缓速酸化配方和注入参数。通过主剂、成垢离子抑制剂、增渗剂、黏土稳定剂、缓蚀剂等的复配、筛选和优化,研制出一种适合高温环境的综合性能良好的缓速酸配方。研究表明:该配方体系对天然岩心的渗透率提高20.5%,具有良好的缓蚀和增渗性能。In view of the shortcomings of the traditional acidizing process in Yanchang oilfield,such as fast acid rock reaction speed,short penetration distance and poor acidizing effect,the retarded acidizing technology was studied,and the retarded acidizing formula and injection parameters were optimized.Through the combination,screening and optimization of the main agent,scaling ion inhibitor,permeability enhancer,clay stabilizer and corrosion inhibitor,a kind of retarded acid formula with good comprehensive performance suitable for high temperature environment was developed.The results show that the permeability of natural core can be increased by 20.5% with good corrosion inhibition and permeability enhancement performance.

关 键 词：缓速酸 配方 增渗 

分 类 号：TE53[石油与天然气工程—油气田开发工程]