%0 Journal Article %T Tracking and CO2 leakage from deep saline to fresh groundwaters: Development of sensitive monitoring techniques %+ Bureau de Recherches Géologiques et Minières (BRGM) (BRGM) %+ Centre de Géosciences (GEOSCIENCES) %A Humez, Pauline %A Audigane, Pascal %A Lions, Julie %A Négrel, Philippe %A Lagneau, Vincent %< avec comité de lecture %@ 1876-6102 %J Energy Procedia %I Elsevier %V 4 %P 3443-3449 %8 2011 %D 2011 %R 10.1016/j.egypro.2011.02.269 %K reactive transport modeling %K water quality %K isotopic monitoring opprotunities %K CO2 geological storage %K CO2 leakage %Z Sciences of the Universe [physics]/Earth SciencesJournal articles %X In a predictive approach goal and to focus this work on risk assessment related to CCS context, a modeling study of an unfavorable scenario in which CO 2 leakage (willfully provoked) through an abandoned well, from a deep saline aquifer to fresh groundwater was developed. This 3D numerical model handles both fluid-rock geochemical interaction in the storage aquifer and impacted aquifer (code TOUGHREACT). In a second part and in the frame of studying, the use of multi-isotope approaches, like an isotopic monitoring opportunity, is developing in order to detect CO 2 leakage and to record geochemical processes of water quality evolution, induced by the lowering of the pH due to the ingress of CO 2 in the system. The case of study applies to the French Paris Basin. %G English %2 https://brgm.hal.science/hal-03652271/document %2 https://brgm.hal.science/hal-03652271/file/1-s2.0-S1876610211004668-main.pdf %L hal-03652271 %U https://brgm.hal.science/hal-03652271 %~ INSTITUT-TELECOM %~ ENSMP %~ BRGM %~ ENSMP_GEOSCIENCES %~ PARISTECH %~ PSL %~ ENSMP_DEP_STE %~ ENSMP_DR %~ ENSMP-PSL %~ ENSMP_HR %~ BRGM-DO