The upwarping phenomenon of water-flooding characteristic curves at high water-cut stage influenced the precise prediction of recoverable reserves and oil recovery. 水驱特征曲线在高含水开发期的上翘现象影响到可采储量和采收率预测的准确性。
This paper accordingly introduces a derivative curve of waterflooding characteristics based on derivative sensitivity and presents the calculation method. 针对这一问题，基于导数的敏感性特征，引入水驱特征导数曲线，并给出相应的计算方法。
