A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.cma.2021.114112 http://hdl.handle.net/11449/222335 |
Resumo: | The presence of natural fractures in a porous medium strongly influences the fluid flow path. The complex geometric characteristics of the fracture network create preferential channels that change the permeability of the medium. In this context, this paper presents a novel discrete fracture model to address the hydrodynamic behavior of naturally fractured porous media by using a coupling scheme in which the initially independent standard finite element meshes of porous rock and fractures are coupled via coupling finite elements to enforce the continuity of the pressure field between the meshes through a penalty parameter. The main feature of the technique is the capacity to treat problems with non-matching, overlapping and interfacial meshes with no need to add extra degrees of freedom to describe the compatibility between the meshes. In addition, the proposed coupling finite elements also connect non-conforming meshes of fractures, so that their interaction emerges naturally from the coupling scheme. The new theoretical framework and finite element equations are described in detail and 2D and 3D numerical experiments are conducted to validate and verify the technique against results reported in the literature. The obtained results show that the proposed coupling scheme is efficient and able to capture the main phenomena associated with the fluid transport in fractured porous media. |
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A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous mediaCoupling finite elementEmbedded discrete fracturesFluid flowNaturally fractured reservoirsNon-matching meshesThe presence of natural fractures in a porous medium strongly influences the fluid flow path. The complex geometric characteristics of the fracture network create preferential channels that change the permeability of the medium. In this context, this paper presents a novel discrete fracture model to address the hydrodynamic behavior of naturally fractured porous media by using a coupling scheme in which the initially independent standard finite element meshes of porous rock and fractures are coupled via coupling finite elements to enforce the continuity of the pressure field between the meshes through a penalty parameter. The main feature of the technique is the capacity to treat problems with non-matching, overlapping and interfacial meshes with no need to add extra degrees of freedom to describe the compatibility between the meshes. In addition, the proposed coupling finite elements also connect non-conforming meshes of fractures, so that their interaction emerges naturally from the coupling scheme. The new theoretical framework and finite element equations are described in detail and 2D and 3D numerical experiments are conducted to validate and verify the technique against results reported in the literature. The obtained results show that the proposed coupling scheme is efficient and able to capture the main phenomena associated with the fluid transport in fractured porous media.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Department of Civil and Environmental Engineering São Paulo State University (UNESP), Av. Eng. Luiz Edmundo Carrijo Coube 14-01Department of Structural and Geotechnical Engineering Polytechnic School at the University of São Paulo (USP), Av. Prof. Almeida Prado, trav. do Biênio, 83Department of Civil and Environmental Engineering São Paulo State University (UNESP), Av. Eng. Luiz Edmundo Carrijo Coube 14-01Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Manzoli, Osvaldo L. [UNESP]Borges, Livia F.A.Rodrigues, Eduardo A. [UNESP]Cleto, Pedro R. [UNESP]Maedo, Michael A. [UNESP]Bitencourt, Luís A.G.2022-04-28T19:44:06Z2022-04-28T19:44:06Z2021-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cma.2021.114112Computer Methods in Applied Mechanics and Engineering, v. 386.0045-7825http://hdl.handle.net/11449/22233510.1016/j.cma.2021.1141122-s2.0-85114086229Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengComputer Methods in Applied Mechanics and Engineeringinfo:eu-repo/semantics/openAccess2022-04-28T19:44:06Zoai:repositorio.unesp.br:11449/222335Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:54:31.570070Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
title |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
spellingShingle |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media Manzoli, Osvaldo L. [UNESP] Coupling finite element Embedded discrete fractures Fluid flow Naturally fractured reservoirs Non-matching meshes |
title_short |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
title_full |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
title_fullStr |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
title_full_unstemmed |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
title_sort |
A new discrete fracture approach based on the use of coupling finite elements for modeling fluid transport in naturally fractured porous media |
author |
Manzoli, Osvaldo L. [UNESP] |
author_facet |
Manzoli, Osvaldo L. [UNESP] Borges, Livia F.A. Rodrigues, Eduardo A. [UNESP] Cleto, Pedro R. [UNESP] Maedo, Michael A. [UNESP] Bitencourt, Luís A.G. |
author_role |
author |
author2 |
Borges, Livia F.A. Rodrigues, Eduardo A. [UNESP] Cleto, Pedro R. [UNESP] Maedo, Michael A. [UNESP] Bitencourt, Luís A.G. |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Manzoli, Osvaldo L. [UNESP] Borges, Livia F.A. Rodrigues, Eduardo A. [UNESP] Cleto, Pedro R. [UNESP] Maedo, Michael A. [UNESP] Bitencourt, Luís A.G. |
dc.subject.por.fl_str_mv |
Coupling finite element Embedded discrete fractures Fluid flow Naturally fractured reservoirs Non-matching meshes |
topic |
Coupling finite element Embedded discrete fractures Fluid flow Naturally fractured reservoirs Non-matching meshes |
description |
The presence of natural fractures in a porous medium strongly influences the fluid flow path. The complex geometric characteristics of the fracture network create preferential channels that change the permeability of the medium. In this context, this paper presents a novel discrete fracture model to address the hydrodynamic behavior of naturally fractured porous media by using a coupling scheme in which the initially independent standard finite element meshes of porous rock and fractures are coupled via coupling finite elements to enforce the continuity of the pressure field between the meshes through a penalty parameter. The main feature of the technique is the capacity to treat problems with non-matching, overlapping and interfacial meshes with no need to add extra degrees of freedom to describe the compatibility between the meshes. In addition, the proposed coupling finite elements also connect non-conforming meshes of fractures, so that their interaction emerges naturally from the coupling scheme. The new theoretical framework and finite element equations are described in detail and 2D and 3D numerical experiments are conducted to validate and verify the technique against results reported in the literature. The obtained results show that the proposed coupling scheme is efficient and able to capture the main phenomena associated with the fluid transport in fractured porous media. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-01 2022-04-28T19:44:06Z 2022-04-28T19:44:06Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.cma.2021.114112 Computer Methods in Applied Mechanics and Engineering, v. 386. 0045-7825 http://hdl.handle.net/11449/222335 10.1016/j.cma.2021.114112 2-s2.0-85114086229 |
url |
http://dx.doi.org/10.1016/j.cma.2021.114112 http://hdl.handle.net/11449/222335 |
identifier_str_mv |
Computer Methods in Applied Mechanics and Engineering, v. 386. 0045-7825 10.1016/j.cma.2021.114112 2-s2.0-85114086229 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Computer Methods in Applied Mechanics and Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129138321522688 |