Determination of the effective storage of CO2 at Coyula seismic block level in the Tampico-Misantla province

Carbon capture and storage methods are commonly accepted as an essencial way to mitigate atmospheric CO2 concentrations. Despite being a significant petroleum producer, Mexico is committed to combating climate change encouraging the use of carbon capture and storage and enhance oil recovery technology. In this research, the storage capacity of CO2 in the reservoir of a deep saline aquifer located in the Coyula seismic block in the Tampico Misantla Basin, is estimated using the volumetric approach where parameters like CO2 density, and porosity of the geological formation, and efficiency storage factor are considered. To achieve a better evaluation of the site and to constrain the effective storage potential of the Coyula seismic block, both open and close systems were tested. A conservative evaluation for all the identified reservoirs, delimited in the Cahuasas Jurassic formation within the Coyula seismic block, amounts to 25.6 Mton CO2. Compared to the emissions from regional sources (8 Mton of CO2 per year), the minimum geological reservoir evaluation encourages further detailed studies to improve the estimation of reservoir volumes and CO2 storage feasibility. Carbon capture and storage methods are commonly accepted as an essencial way to mitigate atmospheric CO2 concentrations. Despite being a significant petroleum producer, Mexico is committed to combating climate change encouraging the use of carbon capture and storage and enhance oil recovery technology. In this research, the storage capacity of CO2 in the reservoir of a deep saline aquifer located in the Coyula seismic block in the Tampico Misantla Basin, is estimated using the volumetric approach where parameters like CO2 density, and porosity of the geological formation, and efficiency storage factor are considered. To achieve a better evaluation of the site and to constrain the effective storage potential of the Coyula seismic block, both open and close systems were tested. A conservative evaluation for all the identified reservoirs, delimited in the Cahuasas Jurassic formation within the Coyula seismic block, amounts to 25.6 Mton CO2. Compared to the emissions from regional sources (8 Mton of CO2 per year), the minimum geological reservoir evaluation encourages further detailed studies to improve the estimation of reservoir volumes and CO2 storage feasibility.