五里湾一区注入水与储层的配伍性研究  

Study of the Compatibility between Injecting Water and Reservoir Rocks in the First District of Wuliwan

作　　者：王蓓蕾[1] 吴新民[1] 张喜凤[1] 赵海峰[1] 

机构地区：[1]西安石油大学,陕西西安710065

出　　处：《内蒙古石油化工》2008年第19期93-94,共2页Inner Mongolia Petrochemical Industry

摘　　要：靖安油田五里湾一区自1997年11月进入注水开发时期,目前注水开发已暴露出一些问题,如注水压力升高,油井见水后采液、采油指数迅速下降,采油速度降低,地层吸水能力下降,采用的酸化、低密度洗井及增产改造措施基本无效等。针对以上问题,本文对该地区的储层特征、粘土矿物含量、岩心敏感性、注入水性质及注入水与储层配伍性对渗透率的影响等方面进行了试验研究。得出结论:五里湾一区主要采用地表清水作为注入水水源,但是清水与储层配伍性较差,注入后易造成储层水敏损害,建议采用采出污水净化处理后回注代替清水。The first district of Wuliwan in Jing an Oilfield entered injection life since November 1997.At present the water-injection development has exposed some questions: the rapidly descending PI,the lower oil production rate and water absorbing capacity of formation,the upper injection pressure.These questions result in the approximatively invalid acidulation,low-density hole opener treatment and other stimulation treatments.In addition,the pollution can be induced for the lacking water supply and the bulk extra...

关 键 词：储层伤害 注入水 敏感性 配伍性 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]