| 自然递减率简便求解推导及应用 |
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| 引用本文： | 杨坤,张继谦.自然递减率简便求解推导及应用[J].石油地质与工程,1997(2). |
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| 作者姓名： | 杨坤 张继谦 |
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| 作者单位： | 河南石油勘探局!河南南阳473132(杨坤)，河南石油勘探局(张继谦) |
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| 摘 要： | 从理论和现场实际出发，得出了在高含水期自然递减率主要受地下含水上升幅度或含水上升率的影响，并结合水驱规律，最终导出了自然递减率的简便求解方程式。只要已知单元、区块或油田的含水率和采油速度，就可以快速求出自然递减率。预测结果与实际吻合。
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| 关 键 词： | 递减率 含水率 采油速度 泵效 预测 |
A Simple Method to Calculate Natural Decline Rate |
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| Yan Kun, Zhang Jiqian.A Simple Method to Calculate Natural Decline Rate[J].Petroleum Geology and Engineering,1997(2). |
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| Authors: | Yan Kun Zhang Jiqian |
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| Affiliation: | Yan Kun; Zhang Jiqian |
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| Abstract: | Through analysis of theory and practice,it is obtainedthat natural decline rate depends mainly on water cut inhigh water-cut stage.According to law of water drive oiland derivation in math, the formula to calculate thenatural decline rate is achieved,that is to say,so long aswater cut and rate of oil production are known,it can becalculated and the result is approximate to productionpractice. |
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| Keywords: | Decline rate Water cut Pump efficiency Prediction Oil recovery rate |
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