对线性化方案的性能分析,用于模拟多相流在多孔介质中的多相流
Abdul Salam Abd1, Ali Asif1, Ahmad Abushaikha2
1Division of Sustainable Development, College of Science and Engineering, Education City, Hamad Bin Khalifa University, Qatar Foundation, P. O. Box 5825, Doha, Qatar.
Scientific reports
|July 7, 2024
概括
通过比较数值线性化技术,可以提高水库模拟的准确性. 有限差异中心 (FDC) 准确但缓慢,基于操作者的线性化 (OBL) 快速但更简单,有限前差异 (FDF) 提供了平衡.
科学领域:
- 石油工程是石油工程中的一个.
- 计算科学 计算科学
- 地质科学 地质科学
背景情况:
- 储模拟对于理解多孔介质中的流体流动和优化现场开发至关重要.
- 强烈的地质异质性给水库模拟中的传统离散方法带来了挑战.
- 准确和高效的非线性溶解器对于减少水库表征中的不确定性至关重要.
研究的目的:
- 综合评估和比较水库模拟的数值线性化技术.
- 评估有限差值中心 (FDC),有限前期差值 (FDF) 和基于操作者的线性化 (OBL) 方法的性能.
- 引导线性化技术的选择,以提高非线性解决器的准确性和效率.
主要方法:
- 研究了包括FDC,FDF和OBL在内的数值线性化技术.
- 基于准确性,计算效率和适应性,方法被严格分析.
- 对于具有强异质性的多孔介质中的流体流量问题,评估了性能.
主要成果:
- 对于复杂的,异质的水库,FDC提供了更高的准确性,但表现出较慢的趋同.
- OBL表现出卓越的计算效率和快速融合,适用于资源有限或更简单的场景.
- FDF提供了精度和速度之间的平衡,取决于衍生估计步骤大小.
结论:
- 每种线性化方法 (FDC,FDF,OBL) 在准确性和计算效率之间都有独特的权衡.
- 线性化技术的选择应与水库的复杂性,计算资源和所需的准确性保持一致.
- 优化线性化方法是改善水库模拟中的非线性解答器的关键,以更好地开发现场.
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