高效开发大庆东部低渗透油藏的关键技术  

Crucial Techniques to Develop Low\|permeability Reservoirs with High Efficiency in Eastern Daqing

作　　者：苏永新[1,2] 常瑛[1,2] 史连杰[1,2] 贾振岐 

机构地区：[1]大庆石油管理局第十采油厂 [2]大庆石油学院石油工程系

出　　处：《大庆石油学院学报》1999年第2期94-96,共3页Journal of Daqing Petroleum Institute

基　　金：国家"九五"科技攻关项目

摘　　要：针对低渗透油藏内压力传导特点及高含蜡、含胶质石油的渗流特征，研究了高效开发这类油藏的４项关键技术：早期注水，可以保持地层压力，防止油层孔隙度、渗透率降低；缩小井距可获得较好的开发效果；限制油水井停产停注时间，减小胶凝结构体系触变性的影响；利用微生物驱油，改变胶凝结构。According to the characteristics of the pressure transfer in low\|permeability reservoirs and the flow of crude oil of high paraffin and colloidal\|matter content, 4 types of crucial techniques available to develop low\|permeability reservoirs more efficiently are studied: Water injection in the early stage in order to maintain reservoir pressure and prevent porosity and permeability from reducing; reducing the intervals between wells to get better development result; controlling the shut\|in time of producers and injectors to lower the effect of the thixotropy of jelling structure system; microbial flooding which can change the jelling structure and enhance the oil output of producing well.

关 键 词：耱水 胶凝结构体系 油田注水 

分 类 号：TE348[石油与天然气工程—油气田开发工程]