Mechanisms of gas transport in clay barriers

Laboratory experiments show that preferential paths develop through saturated impervious clay bodies. A procedure to integrate gas transmission discontinuities into a general THM formulation is described. The technique has been incorporated into a general purpose FE THM code (CODE_BRIGHT) and it has...

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Detalles Bibliográficos
Autores: Alonso Pérez de Agreda, Eduardo|||0000-0003-2472-3951, Olivella Pastallé, Sebastià|||0000-0003-3976-4027, Arnedo Gaute, Diego
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/2223
Acceso en línea:https://hdl.handle.net/2117/2223
Access Level:acceso abierto
Palabra clave:Natural gas -- Migration
Clay soils
Soil permeability
Fracture mechanics
Finite element method
Gas migration
Clay buffers
Gas -- Transport
Sòls argilosos
Permeabilitat
Fractures, Mecànica de
Elements finits, Mètode dels
Code-bright
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repository_id_str
spelling Mechanisms of gas transport in clay barriersMecanismos de transporte de gas en barreras de arcillaAlonso Pérez de Agreda, Eduardo|||0000-0003-2472-3951Olivella Pastallé, Sebastià|||0000-0003-3976-4027Arnedo Gaute, DiegoNatural gas -- MigrationClay soilsSoil permeabilityFracture mechanicsFinite element methodGas migrationClay buffersGas -- TransportSòls argilososPermeabilitatFractures, Mecànica deElements finits, Mètode delsCode-brightLaboratory experiments show that preferential paths develop through saturated impervious clay bodies. A procedure to integrate gas transmission discontinuities into a general THM formulation is described. The technique has been incorporated into a general purpose FE THM code (CODE_BRIGHT) and it has been used to reproduce gas transmission experiments in specimens. The experimentally observed peaks in gas pressure and flow rates, when breakthrough conditions are reached, are reproduced. The paper discusses also the role of local heterogeneity in gas migration. A computational experiment, inspired in the conditions prevailing on the “in situ” large scale GMT test, has been preformed. All the elements of the discretization include an embedded discontinuity. The analysis shows that small variability in buffer properties enhances the development of preferential paths.Peer ReviewedUniversidad Complutense de Madrid20062006-01-0120082008-08-12journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/2223reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/22232026-05-27T15:37:01Z
dc.title.none.fl_str_mv Mechanisms of gas transport in clay barriers
Mecanismos de transporte de gas en barreras de arcilla
title Mechanisms of gas transport in clay barriers
spellingShingle Mechanisms of gas transport in clay barriers
Alonso Pérez de Agreda, Eduardo|||0000-0003-2472-3951
Natural gas -- Migration
Clay soils
Soil permeability
Fracture mechanics
Finite element method
Gas migration
Clay buffers
Gas -- Transport
Sòls argilosos
Permeabilitat
Fractures, Mecànica de
Elements finits, Mètode dels
Code-bright
title_short Mechanisms of gas transport in clay barriers
title_full Mechanisms of gas transport in clay barriers
title_fullStr Mechanisms of gas transport in clay barriers
title_full_unstemmed Mechanisms of gas transport in clay barriers
title_sort Mechanisms of gas transport in clay barriers
dc.creator.none.fl_str_mv Alonso Pérez de Agreda, Eduardo|||0000-0003-2472-3951
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
Arnedo Gaute, Diego
author Alonso Pérez de Agreda, Eduardo|||0000-0003-2472-3951
author_facet Alonso Pérez de Agreda, Eduardo|||0000-0003-2472-3951
Olivella Pastallé, Sebastià|||0000-0003-3976-4027
Arnedo Gaute, Diego
author_role author
author2 Olivella Pastallé, Sebastià|||0000-0003-3976-4027
Arnedo Gaute, Diego
author2_role author
author
dc.subject.none.fl_str_mv Natural gas -- Migration
Clay soils
Soil permeability
Fracture mechanics
Finite element method
Gas migration
Clay buffers
Gas -- Transport
Sòls argilosos
Permeabilitat
Fractures, Mecànica de
Elements finits, Mètode dels
Code-bright
topic Natural gas -- Migration
Clay soils
Soil permeability
Fracture mechanics
Finite element method
Gas migration
Clay buffers
Gas -- Transport
Sòls argilosos
Permeabilitat
Fractures, Mecànica de
Elements finits, Mètode dels
Code-bright
description Laboratory experiments show that preferential paths develop through saturated impervious clay bodies. A procedure to integrate gas transmission discontinuities into a general THM formulation is described. The technique has been incorporated into a general purpose FE THM code (CODE_BRIGHT) and it has been used to reproduce gas transmission experiments in specimens. The experimentally observed peaks in gas pressure and flow rates, when breakthrough conditions are reached, are reproduced. The paper discusses also the role of local heterogeneity in gas migration. A computational experiment, inspired in the conditions prevailing on the “in situ” large scale GMT test, has been preformed. All the elements of the discretization include an embedded discontinuity. The analysis shows that small variability in buffer properties enhances the development of preferential paths.
publishDate 2006
dc.date.none.fl_str_mv 2006
2006-01-01
2008
2008-08-12
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/2223
url https://hdl.handle.net/2117/2223
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidad Complutense de Madrid
publisher.none.fl_str_mv Universidad Complutense de Madrid
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869420921218924544
score 15,300719

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