Print Email Facebook Twitter Quantification of coarsening effect on response uncertainty in reservoir simulation Title Quantification of coarsening effect on response uncertainty in reservoir simulation Author de Hoop, S. (TU Delft Applied Geology) Voskov, D.V. (TU Delft Reservoir Engineering) Vossepoel, F.C. (TU Delft Reservoir Engineering) Jung, A. (Shell Global Solutions International B.V.) Contributor Gunasekera, D. (editor) Date 2018-01-01 Abstract In this study, an attempt is made to better understand the effect coarsening of the parameter space has on the uncertainty representation of the response. Firstly, an HF ensemble of channelized reservoir models is constructed using a Multi-Point Statistic (MPS) approach. Several levels of coarsening are generated using a flow-based upscaling algorithm. A water injection strategy is simulated for each scale of the hierarchical ensemble. Dynamic analysis is performed on a reduced representation of the response uncertainty obtained via Multidimensional Scaling (MDS). We introduce an Uncertainty Trajectory (UT), which quantifies the coarsening effect in terms of deviation from the HF ensemble response uncertainty. The UT also includes the temporal behavior of the response uncertainty of each ensemble scale. The mean integrated distance from the HF ensemble UT can be used as a measure of dissimilarity in the flow behavior of consecutive coarser ensembles scales. Reducing the number of HF flow simulations required for uncertainty quantification can be achieved via the proposed methodology and thereby greatly reducing the overall computational cost. To reference this document use: http://resolver.tudelft.nl/uuid:71a08cfd-de26-41da-83d9-07761aece811 DOI https://doi.org/10.3997/2214-4609.201802223 Publisher EAGE Embargo date 2019-03-06 ISBN 9789462822603 Source 16th European Conference on the Mathematics of Oil Recovery, ECMOR 2018 Event 16th European Conference on the Mathematics of Oil Recovery, ECMOR 2018, 2018-09-03 → 2018-09-06, Barcelona, Spain 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 © 2018 S. de Hoop, D.V. Voskov, F.C. Vossepoel, A. Jung Files PDF Th_A1_05.pdf 13.27 MB Close viewer /islandora/object/uuid:71a08cfd-de26-41da-83d9-07761aece811/datastream/OBJ/view