São Paulo, UNESP, Geociências, v. 31, n. 4, p. 485-504, 2012 485 LARGE SCALE CARBON CAPTURE AND STORAGE IN BRAZIL: A PRELIMINARY COST MODELLING FOR CAMPOS BASIN’S OIL FIELDS Gabriela Camboim Rockett 1 , Machteld van den Broek 2 , João Marcelo Medina Ketzer 1 , Andrea Ramírez 2 (1) Centro de Excelência em Pesquisa e Inovação em Petróleo, Recursos Minerais e Armazenamento de Carbono / Pontifícia Universidade Católica do Rio Grande do Sul. Av. Ipiranga, 6681 - Prédio 96J - CEP 90619-900 - Porto Alegre/RS – Brasil. Endereços eletrônicos: gabriela.rockett@gmail.com; marcelo.ketzer@pucrs.br (2) Copernicus Institute of Sustainable Development and Innovation - Faculty of Science/Utrecht University. Heidelberglaan 2, 3584 CS Utrecht, The Netherlands. Endereços eletrônicos: M.A.vandenBroek@uu.nl; C.A.Ramirez@uu.nl Introduction Study area: Campos Basin Methodology Data collection and assumptions CO 2 Stationary Sources Data CO 2 Transport Data CO 2 Storage data Modelling approach CO 2 Sources and Capture Geological Reservoirs CO2 Transport Results and discussions Stationary sources in Campos Basin vicinity, reservoirs and modeled trunklines Clustering of Sinks and Sources CO2 Transport Network Costs for large scale CCS implementation in Brazil Assessment of CCS chains Conclusions Acknowledgements References ABSTRACT - This study provides a preliminary cost assessment for large scale deployment of carbon capture and storage (CCS) in Brazil. A study case for CO 2 geological storage in the Campos Basin, one of the sedimentary basins with very large oil reserves in Brazil, was performed. The results showed that about 76% of this basin's CO 2 storage capacity (considering the 17 studied oil fields) can be used at storage costs lower than 4 €/t CO 2 . The findings of the research indicate that about 10 MtCO 2 can be captured from neighbouring sources at costs lower than 28 €/tonne CO 2 . An assessment of CCS chains under four different scenarios showed average costs for complete CCS chains in the range of 47 €/t by 2025 in a scenario with 10 MtCO 2 stored/yr to 82 €/t in a scenario with 35 MtCO 2 stored/yr. In the latter scenario, the estimated storage capacity of Campos basin’s oil fields is filled in about 27 years. In all scenarios, CO 2 capture contributed the most to the total costs. The source-sink matching performed in this study is very important to support CCS planning in Brazil. Keywords: CO 2 Capture Transport and Storage (CCS), Geographic Information System (GIS), Cost Modelling, Source-Sink Matching, Campos Basin RESUMO - Este estudo apresenta uma avaliação preliminar dos custos para implantação em grande escala da tecnologia de captura e armazenamento geológico de CO 2 (CCS, do inglês Carbon Capture and Storage) no Brasil. Foi realizado um estudo de caso para armazenamento geológico de CO 2 na Bacia de Campos, uma das bacias sedimentares com maiores reservas de petróleo no Brasil. Os resultados mostraram que cerca de 76% da capacidade dessa bacia para armazenamento de CO 2 (considerando os 15 campos de petróleo estudados) pode ser usada com custo de armazenamento inferior a 4 €/tCO 2 . Os resultados da pesquisa indicam que cerca de 10 MtCO 2 podem ser capturados a partir de fontes emissoras próximas da bacia a custo inferior à 28 €/tCO 2 . Uma avaliação de cadeias de CCS em quatro cenários diferentes mostrou os custos médios para as cadeias completa CCS na faixa de 47 € / t em 2025 em um