文章基本信息

标题：A Hierarchical Multigrid Method for Oil Production Optimization
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作者：Steen Hørsholt ; Hamid Nick ; John Bagterp Jørgensen 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2019
卷号：52
期号：1
页码：492-497
DOI：10.1016/j.ifacol.2019.06.110
语种：English
出版社：Elsevier
摘要：AbstractThe large-scale optimization problems that arise from oil production optimization under geological uncertainty of industry-scale reservoir models poses a challenge even for modern computer architecture. In combination with ensemble-based methods for production optimization under uncertainty, gradient-based optimization algorithms provides a powerful approach that ensures a high convergence rate. However, the spatial resolution and complexity of typical industry-scale models has a significant computational impact that renders the optimization problem intractable. To reduce the computational burden model reduction is essential. In this paper, we introduce a grid coarsening method that maintains the overall dynamics of the flow, by preserving the geological features of the model. Furthermore, we present a hierarchical multigrid method for oil production optimization. The method utilizes a hierarchy of coarse level models based on the high-fidelity model. We present the workflow of the hierarchical multigrid optimization procedure and a numerical example that demonstrates the application of oil production optimization on a synthetic reservoir.
关键词：KeywordsProduction optimizationModel reductionReservoir managementWork-flowGradient based optimization