CO2 geological storage in organic-rich shales of the Irati Formation, Paraná Basin, Brazil

Abstract

Agradeço primeiramente aos professores e pesquisadores que contribuíram com meu aprendizado e formação ao longo do doutoramento. Tive a oportunidade de trabalhar com os melhores profissionais de minha área de pesquisa na atualidade e sou muito grata por tudo que aprendi e pelo contato com pessoas tão admiráveis que me inspiraram a seguir na pesquisa.Dentre estes, agradeço principalmente ao Professor Colombo Tassinari, meu orientador desde o mestrado e a quem devo tudo que construí ao longo de minha formação acadêmica.À minha orientadora, Professora Lucy Sant'Anna, que foi minha principal fonte de apoio ao longo do doutorado e com quem aprendi a ser pesquisadora.Aos professores Cristina Rodrigues e Lemos de Sousa, que foram fundamentais para a conclusão do doutoramento por todo conhecimento e experiência com o tema de pesquisa.Aos professores e pesquisadores,

Assessing the potential for CO2 storage in saline aquifers in Brazil: Challenges and Opportunities

“…26, , 27 Therefore, several CCS studies have already been developed in the Paraná Basin focusing on different types of geological reservoirs. Studies considering geological storage of CO 2 in the Paraná Basin focusing on the black shales of the Irati Formation were conducted by Weber, 28 Abraham‐A and Tassinari, 29,30 de Oliveira et al., 3,31 Rocha 32 . The Rio Bonito Formation composed of sandstones and shales 33 has most recently focused on CCS studies.…”

Avaliação da viabilidade da exploração sustentável do Shale gas na região sudeste do Brasil, com base em aspectos geológicos

“…AL., 1997). The estimated age for the deposition of these rocks is Permian, between 277 and 275 Ma (BASTOS ET. AL., 2021).…”

CO2 Geological Storage Through Adsorption in Organic-Rich Shales: A Case Study of Irati Formation Shales from the Paraná Basin, Brazil

“…Based on the organic geochemical and petrographic assessments conducted by Rocha (2021), the organic-rich shales of the Irati Formation correspond to excellent hydrocarbon source rocks.…”

“…Other contributing factors include quantity and quality of organic content (TOC and kerogen type) and mineralogical composition (clay minerals). These, together with organic maturity, are the pivotal causes of CO adsorption patterns in shales and determine shale reservoirs storage capacity (ROCHA, 2021).…”

“…It relies on geological, geochemical and petrophysical processes and properties such as porosity, permeability, caprock integrity, injectivity and fl uid dynamics (Haszeldine, 2019;Krevor et al, 2019) This chapter raises the hypothesis that organic-rich shales can store substantial volumes of CO due to rock-fl uid properties that attribute a remarkably high CO storage capacity to these unconventional reservoirs. The hypothesis was tested by Rocha (2021) on Irati Formation organic-rich shales to discuss if the Irati Formation can be a feasible target for both CO reduction and shale gas production under small-scale CO emitting-sinking/closed-cycle systems in southern Brazil, where the CO emitting sources are close to the geological reservoir. Moreover, the chapter aims to project the understanding of the geological requirements for CO storage in shale reservoirs and further assess storage capacity in organic-rich shales.…”