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Journal Article

Coupled Dynamic Flow and Geomechanical Simulations for an Integrated Assessment of CO2 Storage Impacts in a Saline Aquifer

Authors
/persons/resource/etillner

Tillner,  E.
5.3 Hydrogeology, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Shi,  Ji-Quan
External Organizations;

Bacci,  Giacomo
External Organizations;

Nielsen,  Carsten M.
External Organizations;

Frykman,  Peter
External Organizations;

Dalhoff,  Finn
External Organizations;

/persons/resource/kempka

Kempka,  T.
5.3 Hydrogeology, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Fulltext (public)

814919.pdf
(Publisher version), 4MB

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Citation

Tillner, E., Shi, J.-Q., Bacci, G., Nielsen, C. M., Frykman, P., Dalhoff, F., Kempka, T. (2014): Coupled Dynamic Flow and Geomechanical Simulations for an Integrated Assessment of CO2 Storage Impacts in a Saline Aquifer. - Energy Procedia, 63, 2879-2893.
https://doi.org/10.1016/j.egypro.2014.11.311


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_814919
Abstract
Pore pressure variation resulting from geological CO2 storage may compromise reservoir, caprock and fault integrity. Therefore, we investigate the mechanical impact of industrial-scale CO2 storage at a prospective Danish site by coupled 3D hydro-mechanical simulations carried out by two independent modelling groups. Even though the two chosen modelling strategies are not identical, simulation results demonstrate that storage integrity is maintained at any time. Vertical displacements are mainly determined by hydraulic fault conductivity influencing spatial pore pressure elevation. The introduced fault zone implementation in the hydro- mechanical model allows for localization of potential leakage pathways for formation fluids along the fault plane.