Diffusion-reaction modelling of the degradation of oil-well cement exposed to carbonated brine

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dc.contributor	Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.contributor	Universitat Politècnica de Catalunya. MECMAT - Mecànica de Materials
dc.contributor.author	Martínez Estévez, Ariadna
dc.contributor.author	Liaudat, Joaquín
dc.contributor.author	López Garello, Carlos María
dc.contributor.author	Carol, Ignacio
dc.date	2017
dc.identifier.citation	Martinez, A., Liaudat, J., Lopez, C., Carol, I. Diffusion-reaction modelling of the degradation of oil-well cement exposed to carbonated brine. A: International Conference on Computational Plasticity. "Computational Plasticity XIV: Fundamentals and Applications: proceedings of the XIVInternational Conference on Computational Plasticity: Fundamentals and Applications, held in Barcelona, Spain 5-7September 2017". 2017, p. 625-635.
dc.identifier.citation	978-84-946909-6-9
dc.identifier.uri	http://hdl.handle.net/2117/115087
dc.language.iso	eng
dc.relation	http://congress.cimne.com/complas2017/frontal/Doc/EbookCOMPLAS2017.pdf
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
dc.subject	Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Degradació ambiental::Contaminació atmosfèrica
dc.subject	Carbon sequestration
dc.subject	Cement--Deterioration
dc.subject	Carbon sequestration
dc.subject	Oil-well cement
dc.subject	CO2
dc.subject	Carbonic acid
dc.subject	Chemical model
dc.subject	Finite Element Method
dc.subject	Ciment -- Deterioració
dc.subject	Anhídrid carbònic -- Aspectes ambientals
dc.title	Diffusion-reaction modelling of the degradation of oil-well cement exposed to carbonated brine
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	The essential aspects of a diffusion-reaction model in development for the degradation process of oil-well cement exposed to carbonated brine are presented in this paper. The formulation consists of two main diffusion/reaction field equations for the concentrations of aqueous calcium and carbon species in the hardened cement paste pore solution, complemented by a number of chemical kinetics and chemical equilibrium equations. The volume fraction distribution of the solid constituents of the hardened cement paste and the reaction products evolve with the progress of the reaction, determining the diffusivity properties of the material. A sensitivity analysis of some parameters of the model is presented to illustrate the capabilities to reproduce realistically some aspects of the degradation process.

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