1. CEPETRO—Center for Petroleum Studies/University of Campinas, P.O. Box 6052, 13083-970 Campinas, São Paulo, Brazil
2. CEPETRO—Center for Petroleum Studies/University of Campinas, P.O. Box 6052, 13083-970 Campinas, São Paulo, Brazil;
3. Faculty of Mechanical Engineering, State University of Campinas—FEM/UNICAMP, Mendeleyev Street, 200, University City “Zeferino Vaz” Barão Geraldo, 13083-860 Campinas, São Paulo, Brazil