一个高效的多尺度模拟框架,集成动态异质性,用于准确的洪水预测.
Li Wu1,2, Junqiang Wang3, Deli Jia4
1School of Energy, China University of Geosciences (Beijing), Beijing, 10083, China. wuli_edu@163.com.
Scientific reports
|July 2, 2025
概括
本研究引入了一种新型的多尺度模拟方法,用于准确地模拟洪水期间的动态水库异质性. 该方法通过捕捉相反的透性效应,显著改善了高水切割阶段的石油回收.
科学领域:
- 石油工程是石油工程中的一个.
- 储水池模拟器 储水池模拟器
- 计算地质科学计算地质科学
背景情况:
- 洪水对中国的石油和天然气生产至关重要.
- 商业模拟器很难准确地模拟由洪水引起的动态水库异质性.
- 这种限制阻碍了准确预测剩余的石油,特别是在高水切割阶段.
研究的目的:
- 开发和验证一种高效和准确的多尺度模拟方法,用于建模动态水库异质性.
- 将由表面流量驱动的时间变化的绝对透率 (k) 和相对透率 (kr) 纳入.
- 改进在高水切割水库中石油回收的预测.
主要方法:
- 提出了一种改进的多尺度有限体积 (IMsFV) 方法来解决多尺度网格上的压力方程.
- 由表面流量驱动的内置时间变化的绝对透率 (k) 和相对透率 (kr).
- 使用SPE10基准验证了该方法,将模拟时间和准确性与完全隐性方法进行比较.
主要成果:
- 与完全隐性方法相比,实现了显著的模拟时间缩短 (95.07%总数,98.19%线性解答器),误差<5%.
- 证明动态相对透性 (kr) 增强了流体流动性并降低了剩余油和度,在动态绝对透性 (k) 效应上占主导地位.
- 灵敏度分析显示,在99%的切断水率下,恢复率提高了28.88-32.87%,注射率增加后增强了收益.
结论:
- 拟议的多尺度模拟方法准确地捕捉了动态异质性,性能优于商业模拟器.
- 动态相对透性在提高高水切割阶段的石油回收方面发挥着至关重要的作用.
- 这种方法提供了一个高效和准确的工具,用于预测成熟,高水切割水库中的剩余石油.
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