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Geomechanical stability of the caprock during CO2 sequestration in deep saline aquifers

Author
Vilarrasa, V.; Olivella, S.; Carrera, J.
Type of activity
Journal article
Journal
Energy procedia
Date of publication
2011
Number
4
First page
5306
Last page
5313
DOI
https://doi.org/10.1016/j.egypro.2011.02.511 Open in new window
Repository
http://hdl.handle.net/2117/15846 Open in new window
Abstract
Sequestration of carbon dioxide (CO2) in deep saline aquifers has emerged as a mitigation strategy for reducing greenhouse gas emissions to the atmosphere. The large amounts of supercritical CO2 that need to be injected into deep saline aquifers may cause large fluid pressure buildup. The resulting overpressure will produce changes in the effective stress field. This will deform the rock and may promote reactivation of sealed fractures or the creation of new ones in the caprock seal, which could...
Citation
Vilarrasa, V.; Olivella, S.; Carrera, J. Geomechanical stability of the caprock during CO2 sequestration in deep saline aquifers. "Energy procedia", 2011, núm. 4, p. 5306-5313.
Keywords
Dilatancy, Fracture, Hydromechanical coupling, Pressure buildup, Stress state
Group of research
GHS - Hydrogeology Group
MSR - Soil and Rock Mechanics

Participants