TY - GEN
T1 - A chemo-poromechanical model for well/caprock interface in presence of CO2
AU - Manzanal, Diego
AU - Vallin, Valérie
AU - Pereira, Jean Michel
PY - 2013/11/15
Y1 - 2013/11/15
N2 - This paper proposes a coupled chemo-poromechanical model for the excavated damaged zone located at the interface between the injection well cement and the caprock in the context of CO2 geological storage. The model relies on a simplified chemistry of carbonates precipitation induced from the well cement carbonation. Crystallization pressure induced by calcium carbonates produces tensile stress concentration at cement-caprock interface in the cement sheath which may lead to permanent damage. This poromechanical model relates a macroscale formulation with an insight into material microstructure through pore size distribution changes induced by crystallization.
AB - This paper proposes a coupled chemo-poromechanical model for the excavated damaged zone located at the interface between the injection well cement and the caprock in the context of CO2 geological storage. The model relies on a simplified chemistry of carbonates precipitation induced from the well cement carbonation. Crystallization pressure induced by calcium carbonates produces tensile stress concentration at cement-caprock interface in the cement sheath which may lead to permanent damage. This poromechanical model relates a macroscale formulation with an insight into material microstructure through pore size distribution changes induced by crystallization.
UR - https://www.scopus.com/pages/publications/84887355447
U2 - 10.1061/9780784412992.175
DO - 10.1061/9780784412992.175
M3 - Conference contribution
AN - SCOPUS:84887355447
SN - 9780784412992
T3 - Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
SP - 1470
EP - 1477
BT - Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
T2 - 5th Biot Conference on Poromechanics, BIOT 2013
Y2 - 10 July 2013 through 12 July 2013
ER -