Print Email Facebook Twitter Multiscale Gradient Computation for Subsurface Flow Models Title Multiscale Gradient Computation for Subsurface Flow Models Author Jesus de Moraes, R. (TU Delft Reservoir Engineering) Rodrigues, J.R.P. (Petrobras) Hajibeygi, H. (TU Delft Reservoir Engineering) Jansen, J.D. (TU Delft Civil Engineering & Geosciences; TU Delft Geoscience and Engineering) Faculty Civil Engineering & Geosciences Department Geoscience and Engineering Date 2016 Abstract We present an efficient multiscale (MS) gradient computation that is suitable for reservoir management studies involving optimization techniques for, e.g., computer-assisted history matching or life-cycle production optimization. The general, algebraic framework allows for the calculation of gradients using both the Direct and Adjoint derivative methods. The framework also allows for the utilization of any MS formulation in the forward reservoir simulation that can be algebraically expressed in terms of a restriction and a prolongation operator. In the implementation, extra partial derivative information required by the gradient methods is computed via automatic differentiation. Numerical experiments demonstrate the accuracy of the method compared against those based on fine-scale simulation (industry standard). To reference this document use: http://resolver.tudelft.nl/uuid:facd9e6d-b58a-4aa0-9e0d-ff1edde1bfb1 DOI https://doi.org/10.3997/2214-4609.201601891 Publisher EAGE Embargo date 2017-03-01 ISBN 978-94-6282-193-4 Source Proceedings of the 15th European Conference on the Mathematics of Oil Recovery: Amsterdam, Netherlands Event ECMOR XV, 2016-08-29 → 2016-09-01, Amsterdam, Netherlands Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2016 R. Jesus de Moraes, J.R.P. Rodrigues, H. Hajibeygi, J.D. Jansen Files PDF We_Gra_05.pdf 2.46 MB Close viewer /islandora/object/uuid:facd9e6d-b58a-4aa0-9e0d-ff1edde1bfb1/datastream/OBJ/view