Preliminary assessment of surface conditions for carbon dioxide injection projects from pre-selected fields in the Recôncavo Basin, Brazil

Energy-intensive industries have had to increase their production to meet global demands, consequently increasing their emissions of greenhouse gases (GHGs) such as CO2. Carbon dioxide is the raw material used in enhanced oil recovery (EOR) techniques, which have been gaining importance, taking into account the issues of global climate change and the potential to store CO2. The aim of this study was to develop a project analysis framework and assess the surface characteristics of candidate fields for CO2 injection projects located in the Recôncavo Basin, Bahia, Brazil, while also considering the present environmental restrictions. The methodology employed comprised a comprehensive review of the relevant literature and field visits to identify the important aspects for this preliminary assessment. Considering the present conditions of the surveyed fields and current environmental regulations, most of the analysed fields were verified to have a high potential for CO2 injection project implementation in Recôncavo Basin.