在油田的注水开发过程中，油藏工程师广泛应用水驱特征曲线进行油田开发的动态分析、评价和预测。但是，在水驱特征曲线出现直线段之前，油田开发早期的水驱特征曲线是一条曲线，不能用于动态分析、评价和预测。本文提供了一套将水驱特征曲线初期的曲线段校正为直线的简单而行之有效的方法。 During the development of oilfield waterflooding, reservoir engineers widely apply the waterflooding characteristic curve to conduct dynamic analysis, evaluation and prediction of oilfield development. However, prior to the appearance of a straight line segment of a water drive characteristic curve, the early flood curve characteristic of the oilfield development is a curve that can not be used for dynamic analysis, evaluation and prediction. This article provides a simple and effective way to correct curve segments from the beginning of a water-flood characteristic curve to a straight line.