A generalized DEIM technique for model order reduction of porous media simulations in reservoir optimizations

Mohammad Esmaeili, Mohammad Ahmadi*, Alireza Kazemi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

High computational requirements limit the applications of subsurface flow simulation for practical problems, especially in the case of well-control optimization that requires lots of simulations. This has motivated the development of reduced-order models, particularly the methods based on Proper Orthogonal Decomposition (POD), to reduce the computational costs of the reservoir simulations. These methods construct several bases in order to transform the parameters of the simulation from a higher-dimensional space onto a lower-dimensional space. In this paper, a new method, GDEIM, based on the combination of POD, Galerkin projection and Discrete Empirical Interpolation Method (DEIM) with the generalized eigenvalue problem, is introduced and examined for a well-control optimization problem which leads to more accurate results in the reconstruction of the Full Order Model (FOM) compared with POD-DEIM despite much lower simulation costs.

Original languageEnglish
Article number109769
JournalJournal of Computational Physics
Volume422
DOIs
Publication statusPublished - Dec 1 2020
Externally publishedYes

Keywords

  • Generalized eigenvalue decomposition
  • Optimization
  • Porous media simulation
  • Reduced-order modeling
  • Reservoir management

ASJC Scopus subject areas

  • Numerical Analysis
  • Modelling and Simulation
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)
  • Computer Science Applications
  • Computational Mathematics
  • Applied Mathematics

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