Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media

Geo-energy and geo-engineering applications, such as improved oil recovery (IOR), geologic carbon storage, and enhanced geothermal systems (EGSs), involve coupled thermo-hydro-mechanical (THM) processes that result from fluid injection and production. In some cases, reservoirs are highly fractured a...

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Autores: Zareidarmiyan, Ahmad, Salarirad, Hossein, Vilarrasa, Víctor, Kim, Kwang-Il, Lee, Jaewon, Min, Ki-Bok
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/216415
Acceso en línea:http://hdl.handle.net/10261/216415
Access Level:acceso abierto
Palabra clave:Coupled thermo-hydro-mechanical (THM) analysis
Improved oil recovery (IOR)
Naturally fractured reservoir (NFR)
CODE_BRIGHTTOUGH-UDEC
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spelling Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured mediaZareidarmiyan, AhmadSalarirad, HosseinVilarrasa, VíctorKim, Kwang-IlLee, JaewonMin, Ki-BokCoupled thermo-hydro-mechanical (THM) analysisImproved oil recovery (IOR)Naturally fractured reservoir (NFR)CODE_BRIGHTTOUGH-UDECGeo-energy and geo-engineering applications, such as improved oil recovery (IOR), geologic carbon storage, and enhanced geothermal systems (EGSs), involve coupled thermo-hydro-mechanical (THM) processes that result from fluid injection and production. In some cases, reservoirs are highly fractured and the geomechanical response is controlled by fractures. Therefore, fractures should explicitly be included into numerical models to realistically simulate the THM responses of the subsurface. In this study, we perform coupled THM numerical simulations of water injection into naturally fractured reservoirs (NFRs) using CODE_BRIGHT and TOUGH-UDEC codes. CODE_BRIGHT is a finite element method (FEM) code that performs fully coupled THM analysis in geological media and TOUGH-UDEC sequentially solves coupled THM processes by combining a finite volume method (FVM) code that solves non-isothermal multiphase flow (TOUGH2) with a distinct element method (DEM) code that solves the mechanical problem (UDEC). First, we validate the two codes against a semi-analytical solution for water injection into a single deformable fracture considering variable permeability based on the cubic law. Then, we compare simulation results of the two codes in an idealized conceptual model that includes one horizontal fracture and in a more realistic model with multiple fractures. Each code models fractures differently. UDEC calculates fracture deformation from the fracture normal and shear stiffnesses, while CODE_BRIGHT treats fractures as equivalent porous media and uses the equivalent Young's modulus and Poisson's ratio of the fracture. Finally, we obtain comparable results of pressure, temperature, stress and displacement distributions and evolutions for the single horizontal fracture model. Despite some similarities, the two codes provide increasingly different results as model complexity increases. These differences highlight the challenging task of accurately modeling coupled THM processes in fractured media given their high nonlinearity.Ahmad Zareidarmiyan acknowledges the financial support received from the “Iran’s Ministry of Science Research and Technology” (PhD students' sabbatical grants). Victor Vilarrasa acknowledges funding from the European Research Council under the European Union’s Horizon 2020 Research and Innovation Program through the Starting Grant GEoREST (www.georest.eu) (Grant Agreement No. 801809). Ki-Bok Min acknowledges the support by the Korea-EU Joint Research Program of the National Research Foundation of Korea through Grant No. NRF-2015K1A3A7A03074226 funded by the Korean Government's Ministry of Science and Information and Communication Technology (ICT) in the framework of the European Union’s Horizon 2020 Research and Innovation Program (Grant No. 691728) and Research Institute of Energy & Resources, Seoul National University.Peer reviewedElsevierEuropean CommissionVilarrasa, Víctor [0000-0003-1169-4469]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/216415reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/691728https://doi.org/10.1016/j.jrmge.2019.12.016Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2164152026-05-22T06:33:51Z
dc.title.none.fl_str_mv Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
title Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
spellingShingle Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
Zareidarmiyan, Ahmad
Coupled thermo-hydro-mechanical (THM) analysis
Improved oil recovery (IOR)
Naturally fractured reservoir (NFR)
CODE_BRIGHTTOUGH-UDEC
title_short Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
title_full Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
title_fullStr Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
title_full_unstemmed Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
title_sort Comparison of numerical codes for coupled thermo-hydro-mechanical simulations of fractured media
dc.creator.none.fl_str_mv Zareidarmiyan, Ahmad
Salarirad, Hossein
Vilarrasa, Víctor
Kim, Kwang-Il
Lee, Jaewon
Min, Ki-Bok
author Zareidarmiyan, Ahmad
author_facet Zareidarmiyan, Ahmad
Salarirad, Hossein
Vilarrasa, Víctor
Kim, Kwang-Il
Lee, Jaewon
Min, Ki-Bok
author_role author
author2 Salarirad, Hossein
Vilarrasa, Víctor
Kim, Kwang-Il
Lee, Jaewon
Min, Ki-Bok
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv European Commission
Vilarrasa, Víctor [0000-0003-1169-4469]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Coupled thermo-hydro-mechanical (THM) analysis
Improved oil recovery (IOR)
Naturally fractured reservoir (NFR)
CODE_BRIGHTTOUGH-UDEC
topic Coupled thermo-hydro-mechanical (THM) analysis
Improved oil recovery (IOR)
Naturally fractured reservoir (NFR)
CODE_BRIGHTTOUGH-UDEC
description Geo-energy and geo-engineering applications, such as improved oil recovery (IOR), geologic carbon storage, and enhanced geothermal systems (EGSs), involve coupled thermo-hydro-mechanical (THM) processes that result from fluid injection and production. In some cases, reservoirs are highly fractured and the geomechanical response is controlled by fractures. Therefore, fractures should explicitly be included into numerical models to realistically simulate the THM responses of the subsurface. In this study, we perform coupled THM numerical simulations of water injection into naturally fractured reservoirs (NFRs) using CODE_BRIGHT and TOUGH-UDEC codes. CODE_BRIGHT is a finite element method (FEM) code that performs fully coupled THM analysis in geological media and TOUGH-UDEC sequentially solves coupled THM processes by combining a finite volume method (FVM) code that solves non-isothermal multiphase flow (TOUGH2) with a distinct element method (DEM) code that solves the mechanical problem (UDEC). First, we validate the two codes against a semi-analytical solution for water injection into a single deformable fracture considering variable permeability based on the cubic law. Then, we compare simulation results of the two codes in an idealized conceptual model that includes one horizontal fracture and in a more realistic model with multiple fractures. Each code models fractures differently. UDEC calculates fracture deformation from the fracture normal and shear stiffnesses, while CODE_BRIGHT treats fractures as equivalent porous media and uses the equivalent Young's modulus and Poisson's ratio of the fracture. Finally, we obtain comparable results of pressure, temperature, stress and displacement distributions and evolutions for the single horizontal fracture model. Despite some similarities, the two codes provide increasingly different results as model complexity increases. These differences highlight the challenging task of accurately modeling coupled THM processes in fractured media given their high nonlinearity.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/216415
url http://hdl.handle.net/10261/216415
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/EC/H2020/691728
https://doi.org/10.1016/j.jrmge.2019.12.016
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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