A benchmark study on reactive two-phase flow in porous media: Part II - results and discussion

Etienne Ahusborde; Brahim Amaziane; Stephan de Hoop; Mustapha El Ossmani; Eric Flauraud; François P. Hamon; Michel Kern; Adrien Socié; Danyang Su; K.  Ulrich Mayer; Michal Tóth; Denis Voskov

doi:10.1007/s10596-024-10269-y

A benchmark study on reactive two-phase flow in porous media: Part II - results and discussion

Etienne Ahusborde, Brahim Amaziane, Stephan de Hoop, Mustapha El Ossmani, Eric Flauraud, François P. Hamon, Michel Kern^*, Adrien Socié, Danyang Su, K. Ulrich Mayer, Michal Tóth, Denis Voskov

^*Corresponding author for this work

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Abstract

This paper presents and discusses the results obtained by the participants to the benchmark described in de Hoop et al, Comput. Geosci. (2024). The benchmark uses a model for CO₂ geological storage and focuses on the coupling between two-phase flow and geochemistry. Several test cases of various levels of difficulty are proposed, both in one and two spatial dimensions. Six teams participated in the benchmark, each with their own simulation code, though not all teams attempted all the cases. The codes used by the participants are described, and the results obtained on the various test cases are compared, as well as the performance of the codes. It is shown that the results obtained are widely consistent, giving a good level of confidence in the outcome of the benchmark. The general complexity of two-phase flow coupled with chemical reactions altering porous media means that some differences between the codes remain. Besides, from the convergence study, it is clear that the two-dimensional problem has a relatively high sensitivity to a spatial resolution which adds to the complexity.

Original language	English
Pages (from-to)	395-412
Number of pages	18
Journal	Computational Geosciences
Volume	28
Issue number	3
DOIs	https://doi.org/10.1007/s10596-024-10269-y
Publication status	Published - 2024

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.

Keywords

Benchmark
Code comparison
Geological carbon storage
Multiphase flow
Reactive transport

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A benchmark study on reactive two-phase flow in porous media: Part II - results and discussionFinal published version, 3.1 MB

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title = "A benchmark study on reactive two-phase flow in porous media: Part II - results and discussion",

abstract = "This paper presents and discusses the results obtained by the participants to the benchmark described in de Hoop et al, Comput. Geosci. (2024). The benchmark uses a model for CO2 geological storage and focuses on the coupling between two-phase flow and geochemistry. Several test cases of various levels of difficulty are proposed, both in one and two spatial dimensions. Six teams participated in the benchmark, each with their own simulation code, though not all teams attempted all the cases. The codes used by the participants are described, and the results obtained on the various test cases are compared, as well as the performance of the codes. It is shown that the results obtained are widely consistent, giving a good level of confidence in the outcome of the benchmark. The general complexity of two-phase flow coupled with chemical reactions altering porous media means that some differences between the codes remain. Besides, from the convergence study, it is clear that the two-dimensional problem has a relatively high sensitivity to a spatial resolution which adds to the complexity.",

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AU - Ahusborde, Etienne

AU - Amaziane, Brahim

AU - de Hoop, Stephan

AU - El Ossmani, Mustapha

AU - Flauraud, Eric

AU - Hamon, François P.

AU - Kern, Michel

AU - Socié, Adrien

AU - Su, Danyang

AU - Mayer, K. Ulrich

AU - Tóth, Michal

AU - Voskov, Denis

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PY - 2024

Y1 - 2024

N2 - This paper presents and discusses the results obtained by the participants to the benchmark described in de Hoop et al, Comput. Geosci. (2024). The benchmark uses a model for CO2 geological storage and focuses on the coupling between two-phase flow and geochemistry. Several test cases of various levels of difficulty are proposed, both in one and two spatial dimensions. Six teams participated in the benchmark, each with their own simulation code, though not all teams attempted all the cases. The codes used by the participants are described, and the results obtained on the various test cases are compared, as well as the performance of the codes. It is shown that the results obtained are widely consistent, giving a good level of confidence in the outcome of the benchmark. The general complexity of two-phase flow coupled with chemical reactions altering porous media means that some differences between the codes remain. Besides, from the convergence study, it is clear that the two-dimensional problem has a relatively high sensitivity to a spatial resolution which adds to the complexity.

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A benchmark study on reactive two-phase flow in porous media: Part II - results and discussion

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Keywords

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