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dc.contributor.authorMartínez Estévez, Ariadna
dc.contributor.authorLiaudat, Joaquín
dc.contributor.authorLópez Garello, Carlos María
dc.contributor.authorCarol, Ignacio
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria del Terreny
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2020-01-14T17:04:05Z
dc.date.available2020-01-14T17:04:05Z
dc.date.issued2019
dc.identifier.citationMartinez, A. [et al.]. Zero-thickness interface model with chemical degradation by acid attack. A: International Conference on Computational Plasticity. "COMPLAS 2019: XV International Conference on Computational Plasticity: Fundamentals and Applications". 2019, p. 456-466.
dc.identifier.isbn978-84-949194-7-3
dc.identifier.urihttp://hdl.handle.net/2117/174795
dc.description.abstractCarbon dioxide (CO2) storage in abandoned oil/gas reservoirs is considered a viable alternative to reduce greenhouse gas emissions to the atmosphere. An important element of the risk associated with long-term CO2 storage is the loss of integrity of the cement seals of the abandoned wells in the reservoir. Among others, one possible cause of loss of integrity is the degradation of the oil-well cement due to the acid attack of the carbonated brine in the reservoir. In previous studies, the authors have developed a diffusion-reaction model for simulating this degradation process. In order to study possible coupled Chemo-Mechanical (CM) mechanisms, this model will be coupled with an existing mechanical model. For this purpose, in this paper, an existing constitutive law for zero-thickness interface, based on the theory of elasto-plasticity with concepts of fracture mechanics, is modified to incorporate the effect of chemical degradation on the mechanical strength parameters. Preliminary results obtained with this new constitutive law are presented, in order to illustrate the main aspects of the proposed constitutive law, as well as a possible C-M degradation mechanism that should be considered in the long-term safety assessment of CO2 geological storage projects.
dc.format.extent11 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
dc.subjectÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament d'emissions i olors
dc.subject.lcshCarbon sequestration
dc.subject.lcshCement--Deterioration
dc.subject.otherOil-well cement
dc.subject.otherAcid attack
dc.subject.otherCO2
dc.subject.otherInterface elements
dc.subject.otherConstitutive law
dc.subject.otherC-M coupling
dc.titleZero-thickness interface model with chemical degradation by acid attack
dc.typeConference report
dc.subject.lemacCarboni -- Emmagatzematge
dc.subject.lemacCiment -- Deterioració
dc.contributor.groupUniversitat Politècnica de Catalunya. MECMAT - Mecànica de Materials
dc.relation.publisherversionhttps://congress.cimne.com/complas2019/frontal/Doc/EbookCOMPLAS2019.pdf
dc.rights.accessOpen Access
local.identifier.drac26498919
dc.description.versionPostprint (published version)
local.citation.authorMartinez, A.; Liaudat, J.; Lopez, C.; Carol, I.
local.citation.contributorInternational Conference on Computational Plasticity
local.citation.publicationNameCOMPLAS 2019: XV International Conference on Computational Plasticity: Fundamentals and Applications
local.citation.startingPage456
local.citation.endingPage466


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