基于油田开发后期现金流量法在井网加密中的应用  

APPLICATION OF THE CASH FLOW METHOD BASED ON THE MEDIUM/LATE STAGE OF OIL FIELDS WATER-FLOOD DEVELOPMENT IN WELL PATTERN THICKENING TECHNIQUES

作　　者：陈正茂[1] 

机构地区：[1]西华师范大学管理学院

出　　处：《钻采工艺》2007年第6期84-87,共4页Drilling & Production Technology

基　　金：国家"973"项目(编号:2001CB209108)的资助;西华师范大学科研启动基金项目;编号:04B040

摘　　要：为了改善油田目前的开发效果,减缓产量递减,降低含水上升率,延长油田的经济开采期,实现其较长时间的高产稳产,减少储量的损失,提高原油采收率,需要进行井网加密调整,井网加密受到各种技术经济条件的限制,如何确定合理井网密度,在油田开发后期有着重要的现实意义。为此,研究了在考虑注水波及系数和注采井数比等因素影响的情况下,结合产量递减规律,利用现金流量法建立并考虑多种因素影响的油田注水开发后期井网加密分析的新方法。该种模型比以往的模型具有考虑影响因素较为全面、结果更符合实际等优点。通过实例分析表明,用净现值方法来确定合理井网密度和极限井网密度简单实用,在现场上具有推广意义。It is necessary to thicken the well pattern to improve the current production efficiency,slow the production decline,and reduce the water cut rate,extend the commercial production term keep high and stable production longer,and decrease the reserve loss and improve the recovery factor.Well pattern thickening is restricted by technical and economical conditions.It is very important for the late stage of oil field production to determine the reasonable well pattern.Based on the Cash Flow Method,considering the flood conformance and the injection/recovery wells ratio,and taking the influence of several factors,such as the physical property of crude oil and heterogeneity of formations,etc.on the production into account,the new analysis method of well pattern thickening considering the influence of many factors during the medium/late stage of water-flood development is set up.The method considers more factors than the usual method.Practical application shows the method is more practical than the methods considering either the economic factor or the engineering factor.

关 键 词：油田开发 注水开发 井网密度 现金流量法 

分 类 号：TE324[石油与天然气工程—油气田开发工程]