2014-10-222014-10-222004-10-26SILVA NETO, Francisco de Assis. Modelagem acústica por diferenças finitas e elementos finitos em 2-D e 2,5-D. 2004. 103 f. Dissertação (Mestrado) - Universidade Federal do Pará, Centro de Geociências, Belém, 2004. Curso de Pós-Graduação em Geofísica.https://repositorio.ufpa.br/handle/2011/5916Acoustic modeling provides useful synthetic data for evaluating seismic processing and imaging in complex geological settings. High order finite difference (FD) and finite elements (FE) was implemented and evaluated in homogeneous and inhomogeneous model. The FD algorithm are estended to 2,5-D for variable density models. Seismic modeling of oil reservoirs targets somewhat similar to those occuring at Paleozoic Basins in the Amazon are presented. Long period multiples produced between the free-surface and the Cretaceous- Paleozoic interface, the low resolution of the seismic waves near the reservoir and the week reflections at the interface between the reservoir rocks and the cap rock are the main features of the synthetics which presents a challenge to seismic imaging.porAcesso AbertoImageamento sísmicoModelagem numéricaDiferenças finitasMétodo dos elementos finitosAlgoritmosRio Solimões (Bacia do Amazonas)Amazonas - EstadoAmazônia brasileiraDissertaçãoCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::GEOFISICA::SISMOLOGIA