Clay Minerals and CO2 Geological Storage in the Paraná Basin

Sant’Anna, Lucy Gomes ; Rocha, Haline de Vasconcellos ; Lima, Fábio Palma de ; Musarra, Raíssa Moreira Lima Mendes ; Tassinari, Colombo Celso Gaeta ; Cañas, Stephanie San Martín

Resumo:

CO2 geological storage is the segment within the CCS chain that plays a significant role in mitigating the worst impacts of climate change due to its considerable CO2 abatement capacity. Overall, the eff ectiveness of CO2 geological storage depends on the combination of geological factors, including clay mineralogy. Clay minerals are relevant to CO2 geological storage since they affect the gas sorption capacity of rock formations. For instance, the concentration of expandable clays, such as smectites, adds to reservoirs’ overall CO2 storage capacity by favouring the development of CO2 adsorption sites due to interlamellar swelling. In this chapter, the contribution of clay minerals to CO2 geological storage is discussed. In addition, the Paraná Basin, south and southeast Brazil, was selected as a case study for determining potential reservoirs and caprocks to CO2 geological storage, based on identified clay mineral assemblages. The result is that the clay mineralogy of various geological formations within the Paraná Basin favours the overall effectiveness and safety of CO2 geological storage and the deployment of CCS technologies in the region.

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DOI: 10.5151/9786555501346-09

Referências bibliográficas
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Como citar:

SANT’ANNA, Lucy Gomes; ROCHA, Haline de Vasconcellos; LIMA, Fábio Palma de; MUSARRA, Raíssa Moreira Lima Mendes; TASSINARI, Colombo Celso Gaeta; CAÑAS, Stephanie San Martín; "Clay Minerals and CO2 Geological Storage in the Paraná Basin", p. 171-180. Perspectives to CO2 Geological Storage and Greenhouse Gas Negative Emissions in South-Southeastern Brazil: Paraná and Santos Sedimentary Basins: Paraná and Santos Sedimentary Basins. São Paulo: Blucher, 2022.
ISBN: 9786555501346, DOI 10.5151/9786555501346-09