Basin-Scale Assessment for CO2 Storage Prospectivity in the Province of Québec, Canada

The assessment of the CO2 storage potential in the Province of Québec, Canada, evaluates the four Paleozoic sedimentary basins present in the south of the province. The St. Lawrence Lowlands sub-basin represents by far the most prospective basin for CO2 storage. It contains excellent reservoir-seal pairs and several large CO2 emitters are present. The Anticosti sub-basin and the Magdalen basins are geologically prospective for CO2 storage, but infrastructure and accessibility are poor due to their offshore setting and large CO2 emitters are located far away. The prospectivity of the Appalachian and Gaspé Belt basins for CO2 storage is evaluated as very low, except for the northeastern part of the Gaspé Peninsula which offers more potential.