title: Porous media investigation before and after hydrochloric acid injection on a pre-salt carbonate coquinas sample.
abstract: Porous space characterization of carbonate rocks is an important aid in petroleum exploration from carbonate reservoir. In this study, X-ray microtomography technique was applied to evaluate total porosity of a coquina sample extracted from pre-salt reservoir, in Brazil, before and after acid injection. Two image processing program were used in order to assess performance. The results showed that microtomography has potential to compute porosity of coquina samples and provides information about rock porous network.
authors.affiliation: Nuclear Engineering Program, Federal University of Rio de Janeiro, P.O. Box 68509, 21941-972 Rio de Janeiro, Brazil.
authors.forename: A C
authors.initials: AC
authors.lastname: Machado
authors.affiliation: Nuclear Engineering Program, Federal University of Rio de Janeiro, P.O. Box 68509, 21941-972 Rio de Janeiro, Brazil.
authors.forename: A P
authors.initials: AP
authors.lastname: Teles
authors.affiliation: Naurex, Rio de Janeiro, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Pepin
authors.affiliation: Schlumberger BRGC, Rio de Janeiro, Brazil.
authors.forename: N
authors.initials: N
authors.lastname: Bize-Forest
authors.affiliation: Nuclear Engineering Program, Federal University of Rio de Janeiro, P.O. Box 68509, 21941-972 Rio de Janeiro, Brazil.
authors.forename: I
authors.initials: I
authors.lastname: Lima
authors.affiliation: Nuclear Engineering Program, Federal University of Rio de Janeiro, P.O. Box 68509, 21941-972 Rio de Janeiro, Brazil. Electronic address: ricardo@lin.ufrj.br.
authors.forename: R T
authors.initials: RT
authors.lastname: Lopes
keywords: Carbonate; Coquina; Microtomography; Porosity; Pre-salt; X-ray