The upwarping phenomenon of water-flooding characteristic curves at high water-cut stage influenced the precise prediction of recoverable reserves and oil recovery. 水驅特徵曲線在高含水開發期的上翹現象影響到可采儲量和採收率預測的準確性。
This paper accordingly introduces a derivative curve of waterflooding characteristics based on derivative sensitivity and presents the calculation method. 針對這一問題，基於導數的敏感性特徵，引入水驅特徵導數曲線，並給出相應的計算方法。
