A. I. C. Garnica
Federal University of Paraíba
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Publication
Featured researches published by A. I. C. Garnica.
Petroleum Science and Technology | 2013
F. D. S. Curbelo; A. I. C. Garnica; E. L. Barros Neto
In this work, three ionic surfactants (F, G, and H) were evaluated in surfactant adsorption experiment and oil recovery tests. Both sets of tests were carried out in a surfactant flooding apparatus, using 30 psi as pressure gradient. The concentration of the solutions injected in adsorption and recovery tests were 30–80% above the critical micelle concentration, to ensure micelle formation. The results obtained showed that adsorption was higher for G (2.7 g.L−1) and the better oil recovery was for G (89.0%).
Petroleum Science and Technology | 2013
F. D. S. Curbelo; A. I. C. Garnica; E. Neto
The cloud point phenomenon for solutions of polyoxyethylene (POE)-type nonionic surfactants (B, C, D, and E) in different salt concentrations was investigated. The cloud point temperature, T c , increased with elongation of the POE chain. This demonstrated that the solvophilicity of the surfactants comes from POE chain. Thus, the cloud point decreased with increase of salt concentration. Surfactants D and E were the only ones that showed cloud point temperatures above the average temperature of oil wells (~70°C), even at high concentrations of salt, and surfactant E was most suitable for enhanced oil recovery operations.
Petroleum Science and Technology | 2008
F. D. S. Curbelo; E. L. Barros Neto; T. V. Dutra; T. N. Castro Dantas; A. I. C. Garnica
Abstract In this article, five nonionic surfactants with different ethoxylation degrees (R70, R95, R120, R150, and R200) were evaluated in surfactant adsorption experiments and oil recovery tests. Both sets of tests were carried out in a surfactant flooding apparatus using 30 psi as pressure gradient. The concentration of the solutions injected in adsorption tests were 30% above the critical micelle concentration (c.m.c.) to ensure micelle formation. In oil recovery tests, the solution concentration varied from the c.m.c. until 500% above it. The results obtained showed that adsorption was higher for R120 and the better oil recovery was for R200.
Journal of Petroleum Science and Engineering | 2009
V.C. Santanna; F.D.S. Curbelo; T. N. Castro Dantas; A. A. Dantas Neto; H.S. Albuquerque; A. I. C. Garnica
Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2007
F. D. S. Curbelo; V. C. Santanna; Eduardo Lins de Barros Neto; T. V. Dutra; Tereza Neuma de Castro Dantas; Afonso Avelino Dantas Neto; A. I. C. Garnica
Afinidad | 2006
F. D. S. Curbelo; E. L. Barros Neto; T. V. Dutra Junior; T. N. Castro Dantas; A. I. C. Garnica
Brazilian Journal of Petroleum and Gas | 2008
F. D. S. Curbelo; A. I. C. Garnica; Tereza Neuma de Castro Dantas; E. L. Barros Neto
Journal of Petroleum Science and Engineering | 2018
Fabíola Dias da Silva Curbelo; A. I. C. Garnica; Edson de Andrade Araújo; E.M. Paiva; A.G. Cabral; Julio Cezar de Oliveira Freitas
Holos | 2018
Elayne Andrade Araújo; Fabíola Dias da Silva Curbelo; A. I. C. Garnica; Roxana Pereira Fernandes de Sousa; Edson de Andrade Araújo; Glauco Soares Braga; Julio Cezar de Oliveira Freitas
Holos | 2017
A. I. C. Garnica; Fabíola Dias da Silva Curbelo; Dimitri Albuquerque Araújo; Renata Martins Braga
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Julio Cezar de Oliveira Freitas
Federal University of Rio Grande do Norte
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