水驱体积波及系数变化关系的研究

A study on the changing relation of the waterflooding volumetric sweep factor.

对于水驱开发的非均质油田 ,体积波及系数是一个重要的评价参数。它不但可以反映水驱体积波及状况 ,而且也会影响水驱油田的最终可采储量和采收率。将丙型水驱曲线与威布尔 (Weibull)预测模型相结合 ,得到了水驱体积波及系数与开发时间和含水率的关系式。实例应用表明 ,所提供的方法是实用有效的。

For the heterogeneous oilfields the waterflooding volumetric sweep factor is a very important evaluation parameter, it not only represents waterflooding volumetric sweep status, but also influences ultimate recoverable reserves and recovery efficiency. This paper associates C type waterflooding curve with Weibull forecasting model, and gets the relationship among waterflooding volumetric sweep factor, development time and water cut. Application of actual example indicates that proposed method is practical and effective.