摘要
本文分析了油田开发过程中递减指数的变化特征,证实了大多数油田或油井产量的递减遵循n=0.5的双曲线递减规律,由此给出了油田产量递减的预测方法。 文中提出了一个计算油田储采比的重要公式,根据储采比与初始递减率之间的关系证明,油田稳产期末,合理的储采比界限应当保持在10以上。根据合理储采比界限,对某油田不同开采条件下的稳产期进行了分析,并对稳产期结束后产量的递减趋势进行了预测。
<ABSTRACT>: This paper analyzes the various characteristics of the decline ex-ponent and confirms that the production decline of most oil fields and oil pro-duction wells follow the rule of hyperbolic decline curves with n=0.5, pre-senting a prediction method of production decline of oil fields.
An important equation for calculating the ratio of reserves to production is given in this paper. The relationship between the ratio of reserves to produc-tion and decline factor show that at the end of the stable production period, the reasonable limit of ratio of reserves to production should be maintained above 10.Based on the reasonable limit of ratio of reserves to production, the stable production period of a given oil field is analyzed at different produc-tion conditions and also the production decline trend after the stable produc-tion period ends.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1991年第4期27-34,共8页
Petroleum Geology & Oilfield Development in Daqing
关键词
油田
预测
储采比
产量
: Production decline exponent, Ratio of reserves to production,Production prediction, Hyperbolic decline curve
