2014-08-222014-08-222001PEREIRA NETO, João Augusto. Geração de campo magnético direcional por combinação de dipolos magnéticos. 2001. 60 f. Dissertação (Mestrado) - Universidade Federal do Pará, Centro de Geociências, Belém, 2001. Curso de Pós-Grduação em Geofísica.https://repositorio.ufpa.br/handle/2011/5489The induction tool is used in order to determine the concentration of hidrocarbons in the formation. Thick layers reservoirs are easy to be investigated but there is a need to improve the resolution of the existing tools to investigate potentially thin alternating clay-sand sequences. This could be achieved by focusing a directed beam of the magnetic field in the formation. The type of field can be created by combining the magnetic dipoles in different configurations. In this work we studied the generation of the directional and focused magnetic field with different combinations of two transmitters loops (two magnetic dipoles) so that the tool gets a better penetration depth than the current inductive tools being capable to delineate zones of fine layers.porAcesso AbertoProspecção - Métodos geofísicosPerfilagem geofísica de poçosCampos magnéticosDissertaçãoCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOFISICA::DESENVOLVIMENTO DE INSTRUMENTACAO GEOFISICA