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该文以Buckley-Leverett的线性驱替理论以及Welge平均含水饱和度方程为基础,推导出一种新型水驱特征曲线关系式,并进行曲线单调性等特征分析,阐述了如何合理选取线性回归起始点以提高预测可采储量以及最终采收率等未来开发指标的精度。新型水驱特征曲线还可以用于油田地质储量的预测。实例证明,该文所推导的新型水驱特征曲线能有效地预测未来开发动态,对于油田生产开发指标预测有一定的实用性。
Based on Buckley-Leverett’s theory of linear displacement and Welge’s average water saturation equation, a new type of waterflooding characteristic curve is deduced and its characteristics such as curve monotonicity are analyzed. It is illustrated how to choose a reasonable linear regression The starting point is to improve the accuracy of future development indicators such as predictable recoverable reserves and ultimate recovery. The new waterflooding characteristic curve can also be used for the prediction of oilfield geological reserves. The example proves that the new waterflooding characteristic curve deduced in this paper can effectively forecast the future development trend and has certain practicability for oilfield production and development index forecasting.