Diagenetic facies in Coquina carbonates - A new approach for complex diagenetic reservoirs

A. C. Tavares, P. Corbett, L. Borghi, R. Camara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication77th EAGE Conference and Exhibition 2015
Subtitle of host publicationEarth Science for Energy and Environment
PublisherEAGE Publishing BV
Pages36-40
Number of pages5
ISBN (Electronic)9781510806627
DOIs
Publication statusPublished - Jun 2015
Event77th EAGE Conference and Exhibition 2015: Earth Science for Energy and Environment - Madrid, Spain
Duration: 1 Jun 20154 Jun 2015

Conference

Conference77th EAGE Conference and Exhibition 2015: Earth Science for Energy and Environment
CountrySpain
CityMadrid
Period1/06/154/06/15

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics

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  • Cite this

    Tavares, A. C., Corbett, P., Borghi, L., & Camara, R. (2015). Diagenetic facies in Coquina carbonates - A new approach for complex diagenetic reservoirs. In 77th EAGE Conference and Exhibition 2015: Earth Science for Energy and Environment (pp. 36-40). EAGE Publishing BV. https://doi.org/10.3997/2214-4609.201412658