对广义递减曲线图版的补充

针对生产实际中产量递减类型的判别问题,从产量递减基本理论出发, 对图解法的广义递减曲线图版做了有益的补充,建立了新的广义递减曲线方程和标准递减曲线类型图版,并给出了一种利用标准图版确定初始递减率的简易方法。通过对油田生产实例的分析拟合,认为其更适用于油田开发中的产量递减分析,而且易为一般油藏工程技术人员所掌握。

A SUPPLEMENT TO GENERALIZED DECLINE CURVE CHART

In the light of identification of production decline type in actual production, the useful supplement to the chart of generalized decline curve were made based on the basic theory of production decline. New generalized decline curve equation and chart of standard decline curve type were established, and a simple method for determining initial decline rate from standard chart was presented. Case study shows that this method is more suitable for production decline analyses in oilfield development, and easily understood by reservoir engineers.