油田开发后期开采层的重复利用探讨  

The Reutilization of Production Layers at Late Development Stage of Oilfield

作　　者：李玉梅[1] 张德芳[1] 刘珏[1] 孙学智[1] 唐磊[1] 赵玉欣[1] 

机构地区：[1]河南石油勘探开发研究院,河南南阳473132

出　　处：《河南石油》2002年第6期29-30,42,共3页Henan Petroleum

摘　　要：油田进入高含水开发后期,剩余油潜力主要分布在流动单元内部及其间的岩性段中,具有“薄、散、小、差、低”的特征,当采用常规的补孔、卡封、压裂、酸化、堵水等措施不能再经济有效地挖掘井筒周围的剩余油潜力之后,接下来可考虑开采层的重复利用。文中以双河油田为例,探讨了油田开发后期开采层重复利用的必要性,实现途径有机械卡封层释封,已堵水层的解堵和重射,大段封堵层选择性射孔等。The residual oil potentials mainly distribute in litho-logic intervals in and/or between flow units at late develop-ment stage with high water-cut and these intervals have the characteristics of″thin,scattered,small,poor and low″.Re-utilization of production layers can be carried out when the residual oil potentials near wellbores can not be economi-cally and effectively recovered with conventional measures such as supplementary perforation,fracturing,acidization and water plugging.Taking Shuanghe oilfield as an exam-ple,this paper discusses the necessity of reutilization of production layers at late development stage.The ways of reutilization include releasing of mechanically plugged lay-ers,unplugging and re-perforation of plugged water layers and selective perforation of large plugged intervals.

关 键 词：油田开发后期 开采层 重复利用 潜力 开采层 封堵 选择性射孔 

分 类 号：TE349[石油与天然气工程—油气田开发工程] TE323