[1] Post-Graduation Program on Geodynamics and Geophysics, Federal University of Rio Grande do Norte, Natal, Brazil
[2] Department of Geophysics, Federal University of Rio Grande do Norte, Natal, Brazil
[3] INCT-GP/CNPq/CAPES-National Institute of Science and Technology in Petroleum Geophysics, Brazil
[4] Department of Geology, Federal University of Rio Grande do Norte, Natal, Brazil
[5] Department of Energy, Division of Petroleum Engineering, FEM, UNICAMP/CEPETRO, Campinas, Brazil