油田不同开发阶段原油储采比计算新方法  

New methods for calculating reserves-production ratio in different stage of oilfield development

作　　者：窦宏恩[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《石油学报》2010年第1期114-118,共5页Acta Petrolei Sinica

基　　金：中国石油天然气股份有限公司科研项目(2008D-500301-12)资助

摘　　要：根据储采比的定义,分别对油田开发上产、稳产和产量递减3个不同开发阶段的生产特征进行了分析,建立了3个不同开发阶段原油储采比计算的新方法,推导出了油田3个不同开发阶段原油储采比与上产率、储量替换率、储采平衡系数和储量动用率等生产指标的关系方程。研究结果表明,油田在整个开发阶段,原油储采比的变化是不规则的,在每一个阶段都可保持一个相对稳定的值。油田要实现稳产,在稳产期内必须同时满足原油产量和原油储采比不变的两个条件。依据储采比和采收率的定义,建立了原油采收率、原油替换率和储量动用率之间的关系方程,可用于油田开发规划指标的合理匹配和油田开发中三率的合理性分析。Based on the definition of reserves-production ratio（R/P）,the production characteristics in the rising,stable and decline stages of oil production during oilfield development were analyzed.The new calculation methods of R/P in the three stages were present,and some relationship equations were built up among the reserves-production ratio,the production rising rate,reserves displacement rate,reserves-production balance factor and developed reserves factor.The study result shows that R/P changes irregularly in the whole process of oilfield development,but there is a stable value of oil production in every stage of the three development stages.The oil production rate and R/P value should be unchangeable in order to realize the stable oil production.An relationship equation among oil recovery factor,reserves replacement ratio and developed reserves factor was developed on the basis of definitions of R/P and oil recovery factor.The new methods can be used to match the index of oilfield development and analyze the reasonability of three ratios in oilfield development.

关 键 词：油田开发 产量递减率 储量动用率 储采平衡系数 原油采收率 储采比 计算方法 

分 类 号：TE313.8[石油与天然气工程—油气田开发工程]