INSTITUTO DE GEOCRONOLOGIA Y GEOLOGIA ISOTOPICA
Unidad Ejecutora - UE
congresos y reuniones científicas
IMPLICANCIES OF MOLECULAR AND ISOTOPIC COMPOSITION FROM GASES IN A CO2 GEOLOGICAL STORAGE PROJECT, MENDOZA - ARGENTINA
FASOLA, M.; OSTERA, H. A.; SOLANO, A.; FEDERICI, M.; PANARELLO, H.O.; GALLIANO, G.
San Carlos de Bariloche
Simposio; VI SOUTH AMERICAN SYMPOSIUM ON ISOTOPE GEOLOGY (VI-SSAGI); 2008
Carbon dioxide is considered to be the greenhouse gas that most contributes to globalwarming on earth. In response to this problem, several methods have been proposed to remove CO2 from the atmosphere. CO2 geological storage in a depleted oil reservoir is one of such methods. Cerro Fortunoso, an oil field located in Mendoza, Argentina has been chosen by Repsol-YPF in order to develop a CO2 geological storage project, the first one proposed in Argentina. Due to geological and project characteristics (CO2 injection in a CO2gas cap, complex structure and basalt rocks in the surface), a series of non conventional monitoring techniques were displayed in the monitoring plan to determine the geochemical and isotope baseline, to follow the CO2 plume movement and to establish possible leakage pathways. The result of isotopic and molecular gas characterizations on oil wells and batteries showed the presence of volcanic and thermogenic CO2 components, which spatial distributionis associated with the geological structure.