张金庆水驱特征曲线的推导及应用

Derivation and Application of Zhang Jinqing Water Drive Characteristic Curve

张金庆提出一种新的适用于描述水驱油田的不同含水上升规律的水驱特征曲线,该曲线在油田应用较为广泛。本文运用该研究方法将另外两条水驱特征曲线结合起来推导出张金庆水驱特征曲线。并结合现场生产数据,利用试凑法通过改变n值对实际的*f Rw曲线进行拟合,结果表明:利用张金庆水驱曲线描述含水率上升是可行的,并且当n值为8.4时效果更佳。

Zhang Jinqing has put forward a new water drive curve which can be used in description of different incremental law of water cut in water drive oilfield.In this paper,based on two types of conventional water drive characteristic curves,Zhang Jinqing water drive characteristic curve was derived.Combined with actual production data,through changing n value,actual curve was simulated by trial method.The results show that it is feasible to predict rising trend of water cut by Zhang Jinqing water drive characteristic curve,and when n equals to 8.4,the water cut prediction is more accurate.