Coquina is a lacustrine carbonate rock formed by the accumulation of bioclasts, mainly bivalve shells. It constitutes an important hydrocarbon reservoir in Brazil, related to pre-salt recent discoveries. The complexity and heterogeneity of these rocks make them a challenge in terms of reservoir modeling. The poro-perm system of this reservoir is directly influenced by the type and the intensity of diagenetic processes. Diagenesis is the main factor to set the porosity: pore types and their connectivity, thereby defining their petrophysical characteristics. The understanding of the diagenetic history of coquinas is the key to understand the evolution of porosity in time and space. This paper shows the link between diagenetic facies and petrophysical properties. This allows better definition and prediction of the distribution of flow units and consequently a better planning of exploration and exploitation.


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  1. Borghi, L.
    2000, Visão Geral da Análise de Fácies Sedimentares do Ponto de Vista da Arquitetura Deposicional. Boletim Museu Nacional, Rio de Janeiro, p.53–26.
    [Google Scholar]
  2. Câmara, R.N.
    2013, Caracterização petrofísica de coquinas da Formação Morro do Chaves (Barremiano/Aptiano), intervalo Pré-Sal da Bacia de Sergipe- Alagoas. 112f. Dissertação (Msc) – Instituto de Geociências,UFRJ, Rio de Janeiro.
    [Google Scholar]
  3. Câmara, R., Corbett, P., Tavares, A. C., Machado, A., Jesus, E., and Borghi, L.
    2014, Carbonate Coquina Reservoirs, New insights for Petrophysical Reservoir Characterisation, EAGE Amsterdam.
    [Google Scholar]
  4. Corbett, P., and Borghi, L.
    , 2013, Lacustrine carbonates – for the purpose of reservoir characterisation are thy different?Offshore Technology Conference, Rio de Janeiro, Brazil, 29–31stOctober
    [Google Scholar]
  5. Lucia, F. J.
    1983, Petrophysical parameters estimated from visual description of carbonate rocks: a field classification of carbonate pore space. Journal of Petroleum Technology, March: p. 626–637.
    [Google Scholar]
  6. Machel, H.G.
    2005, Investigation of burial diagenesis in carbonate hydrocarbon reservoir rocks. Geoscience Canada. v. 32, n.3, p.103–128.
    [Google Scholar]
  7. Tavares, A.C.
    2014, Fácies diagenéticas nas coquinas da Formação Morro do Chaves (Barremiano/Aptiano da Bacia de Sergipe-Alagoas) 217f. Dissertação (Msc) – Geologia, Instituto de Geociências, UFRJ, Rio de Janeiro.
    [Google Scholar]
  8. Tucker, M.E. and Wright, V.P.
    1990, Carbonate Sedimentology. Oxford: Blackwell Scientific Publications, 482 p.
    [Google Scholar]

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