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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

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

Swansea University Author: Dunhui Xiao

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