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Non-intrusive model reduction for a 3D unstructured mesh control volume finite element reservoir model and its application to fluvial channels

D. Xiao, F. Fang, C.C. Pain, I.M. Navon, P. Salinas, Z. Wang, Dunhui Xiao Orcid Logo

International Journal of Oil, Gas and Coal Technology, Volume: 19, Issue: 3, Start page: 316

Swansea University Author: Dunhui Xiao Orcid Logo

Abstract

A non-intrusive model reduction computational method using hypersurfaces representation has been developed for reservoir simulation and further applied to 3D fluvial channel problems in this work. This is achieved by a combination of a radial basis function (RBF) interpolation and proper orthogonal...

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Published in: International Journal of Oil, Gas and Coal Technology
ISSN: 1753-3309 1753-3317
Published: 2018
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa47931
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Abstract: A non-intrusive model reduction computational method using hypersurfaces representation has been developed for reservoir simulation and further applied to 3D fluvial channel problems in this work. This is achieved by a combination of a radial basis function (RBF) interpolation and proper orthogonal decomposition (POD) method. The advantage of the method is that it is generic and non-intrusive, that is, it does not require modifications to the original complex source code, for example, a 3D unstructured mesh control volume finite element (CVFEM) reservoir model used here. The capability of this non-intrusive reduced order model (NIROM) based on hypersurfaces representation has been numerically illustrated in a horizontally layered porous media case, and then further applied to a 3D complex fluvial channel case. By comparing the results of the NIROM against the solutions obtained from the high fidelity full model, it is shown that this NIROM results in a large reduction in the CPU computation cost while much of the details are captured.
College: College of Engineering
Issue: 3
Start Page: 316