一种判别油气田产量递减类型的水驱特征曲线的新方法

New method of water drive characteristic curve to identify gas field production decline type

产量递减曲线是油田进入递减期动态分析的重要方法,是一种非常重要而又常用的预测油田产量递减规律的方法;水驱曲线是水驱开发油田固有的特征曲线,用于预测水驱开发油田的开采储量和采收率,水驱曲线法是预测油田开发未来动态和采收率的重要方法之一。本方法是将水驱曲线法和产量递减法相结合,得到了在水驱油藏进入递减阶段之后,判断递减类型的新方法。

The Aprs decline curve is important methodof dynamic analysis for the oil field entering the decline period, and it is one of very important and commonly used method to forecast field output decreasing rule. The water drivecurve is inherent characteristic curve for the water drive development oilfield, and it has been used in forecasting producing reserve and the recovery ratio. The water drive curvelaw is one of important methods to forecast the oilfield futuredevelopment tendency and recovery ratio. This method wascombined the water drive curve law and the production decline law, and it is a new method to judge decline type afterwater drive reservoir entering decline period.