Articles | Volume 10, issue 3
Solid Earth, 10, 951–967, 2019
https://doi.org/10.5194/se-10-951-2019

Special issue: Understanding the unknowns: the impact of uncertainty in the...

Solid Earth, 10, 951–967, 2019
https://doi.org/10.5194/se-10-951-2019
Research article
27 Jun 2019
Research article | 27 Jun 2019

Uncertainty in fault seal parameters: implications for CO2 column height retention and storage capacity in geological CO2 storage projects

Johannes M. Miocic et al.

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Short summary
When carbon dioxide is introduced into the subsurface it will migrate upwards and can encounter faults, which, depending on their hydrogeological properties and composition, can form barriers or pathways for the migrating fluid. We analyse uncertainties associated with these properties in order to better understand the implications for the retention of CO2 in the subsurface. We show that faults that form seals for other fluids may not be seals for CO2, which has implications for storage sites.