油气井几种常见的产量递减分析方法浅析

A Brief Analysis of Several Common Methods of Oil-Gas Well Production Decline Analysis

文章重点介绍了预测油气井产量递减的3种常见方法（传统的Arps （1945）方法、经典的Fetkovich （1980）典型曲线拟合法和现代的Transient产量递减分析法）,另外对其应用范围、优缺点进行对比,以便更科学有效地利用现有方法进行产量递减的分析.实际应用效果表明,对于低渗气井或不便长时间关井的气井来说,应用Fetkovich递减曲线法和Transient递减曲线法进行地层参数预测更为可行.

Three common methods of oil-gas well production decline prediction are mainly illustrated. They are the traditional method of Arps（1945）, the classical type curve matching method of Fetcovich（1980） and the modem production decline analysis method of Transient. Comparisons of applied range and merits and faults among these methods are also performed in order to analyze the production decline using existing methods scientifically and effectively. Actual application effects indicate that applications of Fetcovich decline curve method and Transient decline curve method are more practical in formation parameter prediction for low permeability gas wells or gas wells that are not convenient for long time shut-in.