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Journal Articles Energy Procedia Year : 2017

Mitigating CO 2 Leakage by Immobilizing CO 2 into Solid Reaction Products

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Abstract

In the unlikely case of CO2 leakage from a storage reservoir, it is desirable to close the leak efficiently and permanently. This could be done by injecting a reactive solution into the leak path, thereby immobilizing migrating CO2 by consuming the gas and forming solid reactants. With regard to permanent closure, it is important to consider materials that are stable in the long-term, ensuring permanent CO2 containment. Numerical modelling was applied to assess the feasibility of injecting calcium-rich water as a CO2-reactive solution to form calcite. A scenarios analyses of key parameters showed that the success of leakage remediation can be up to 95% when carefully balancing the injection rate and distance versus the permeability and leakage rate.
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Dates and versions

hal-01740331 , version 1 (04-01-2019)

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Attribution - NonCommercial - NoDerivatives - CC BY 4.0

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Laura Wasch, Jens Wollenweber, Filip Neele, Marc Fleury. Mitigating CO 2 Leakage by Immobilizing CO 2 into Solid Reaction Products. Energy Procedia, 2017, 114, pp.4214 - 4226. ⟨10.1016/j.egypro.2017.03.1562⟩. ⟨hal-01740331⟩

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