摘要
介绍了一种拉普拉斯变换数值反演的新方法(Crump方法)以及它在油气井现代试井分析中的应用。在数值解例中,将Crump方法和精确解及Stehfest方法分别作了比较。Grump方法无论在计算精度、数值弥散还是在数值振荡上都有很大改进。用此方法绘制的典型曲线更精确。
A new numerical inversion of the Laplace transform(Crump' s method ) is present-ed.This method is applied in modern well testing analysis. Crump' s method , Stehfest'smethod and exact solution are compared in examples cited. The results show that Crump'smethod is more accurate and stable. The type-curves derived by this method are more exactthan those derived by Gringarten et al.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1995年第1期96-104,共9页
Acta Petrolei Sinica
关键词
拉普拉斯变换
数值分析
试井分析
采油井
Laplace transform numerical analysis inversion well test analysis