Numerical Modelling of the PVF2 Volume Strain with Carbon Dioxide

Abstract : In the oil industry, polymer materials are subjected to temperature and gas pressure fluctuations that can damage them. This degradation results from couplings between mechanical, thermal and diffusion phenomena. A law modelling these couplings was implemented in the Abaqus software. By making a numerical study of these couplings, we show that it is necessary to model by an isotropic expansion coefficient the effect of CO2 diffusion on the mechanical behaviour of the PVF2. We show that this parameter is independent of the applied pressure. Moreover, with this coefficient we can predict the maximum swelling of the material when it is saturated by gas.
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C. Baudet, J. C. Grandidier, L. Cangémi, M. H. Klopffer. Numerical Modelling of the PVF2 Volume Strain with Carbon Dioxide. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2006, 61 (6), pp.751-757. ⟨10.2516/ogst:2006013⟩. ⟨hal-02005896⟩

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