超低渗油藏注水井表活剂降压增注技术  

Surface active agent depressurization and injection enhancement technology for ultra-low permeability reservoirs

作　　者：刘瑾 倪兴双 宁浩杰 张瀚澜 Liu Jin;Ni Xingshuang;Ning Haojie;Zhang Hanlan(Xi'an Aode Petroleum engineering Technology Company Of Limited Liability,Xi'an 710018)

机构地区：[1]西安奥德石油工程技术有限责任公司,陕西西安710018

出　　处：《石化技术》2023年第11期55-57,共3页Petrochemical Industry Technology

摘　　要：表面活性剂降压增注技术已经受到各大油田的关注,在分析总结注水井高压欠注以及表面活性剂降压增注原理的基础上,优选出适合超低渗透储层的表面活性剂降压增注体系AD-86,利用表面活性剂降低油水界面张力、改变岩石表面润湿性等机理,实现降压增注的目的。The technology of reducing pressure and increasing injection through surfactants has attracted attention from major oilfields.Based on the analysis and summary of high-pressure underinjection in water injection wells and the principles of reducing pressure and increasing injection through surfactants,this article selects the surfactant pressure and increasing injection system AD-86 suitable for ultra-low permeability reservoirs.By utilizing the mechanisms of reducing oil-water interfacial tension and changing rock surface wettability through surfactants,the goal of reducing pressure and increasing injection is achieved.

关 键 词：超低渗透油藏 注水井 表面活性剂 降压增注 

分 类 号：TE3[石油与天然气工程—油气田开发工程]