威布尔模型的典型曲线及应用  

Application and type curves of Weibull's model

作　　者：陈元千[1] 李剑[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《油气地质与采收率》2014年第1期33-35,39,共4页Petroleum Geology and Recovery Efficiency

摘　　要：威布尔模型是一个重要的预测模型,可以用于预测油田的产量和可采储量。该模型具有3个待定常数,属于非线性模型,在以往利用线性迭代试差法或非线性迭代试差法求解时,这2种方法比较繁琐且存在一定的不确定性。基于威布尔模型的基本方程,推导建立了模型的无因次关系式,研制了可用于人工拟合或计算机自动拟合的典型曲线,该典型曲线只有1个待定模型常数。根据拟合求解的模型常数可以对油田的产量、累积产量和可采储量进行预测。通过实例应用表明,研究内容和方法均正确有效。Weibull model is an important forecasting model, and it can forecast production and recoverable reserves. The model hasthree undetermined constants, which belong to the nonlinear model. In the past, the linear iterative or nonlinear iterative method isneeded to solve it, however, the two methods above are complex and have some uncertainties. Based on the basic equations of Weibullmodel, the dimensionless formula is established by theoretical derivation, type curves for manual or automatic matching by computerare set up, which have only one undetermined constant. According to the matched model constant, the production, cumulative produc-tion and recoverable reserves of oil and gas fields can be forecasted. The application of field example indicated that, the content andmethods in the paper are correct and effective.

关 键 词：威布尔模型 典型曲线 可采储量 产量罗马什金油田 

分 类 号：TE313.8[石油与天然气工程—油气田开发工程]