Seismic Processing
Mostrando 25-31 de 31 artigos, teses e dissertações.
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25. LabSis : um ambiente para desenvovimento de aplicações sismicas Matlab
The Matlab package is a tool of widespread use in the academic environment, because of its advantages in simple direct programming, graphs and visualization tools. It allows initial implementations of algorithms and procedures very quickly in a series of applications. As a counterpar to the above good qualities, Matlab programs do not exhibit the computation
Publicado em: 2004
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26. Caracterização e eliminação de multiplas pelo metodo da superficie comum de reflexão (CRS)
Applied to multicoverage data, the Common-Reflection-Surface (CRS) method obtains, besides a c1ear and well-defined stacked section, also a number of traveltime attributes defined at each point of that zero-offset (stacked) section. The CRS traveltime parameters provide useful information for a variety of seismic processing purposes. Here we investigate the
Publicado em: 2003
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27. Estratigrafia fÃsica e deformaÃÃo do sistema lacustre carbonÃtico (aptiano-albiano) da bacia do Araripe em afloramentos selecionados / Physical Estratigrafia and deformation of the carbonÃtico lacustrine system (aptiano-albiano) of the basin of the Araripe in selected outcrops
The purpose of this thesis was to study the physical stratigraphy of the carbonate deposits exposed in the Araripe Basin, in order to help in the quality prediction of the subsurface analogous reservoirs. The following methods were applied: field work for the selection of outcrops, and consecutive stratigraphical and sedimentological descriptions, sample col
Publicado em: 2003
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28. Refração Sísmica Profunda no Setor Sudeste da Província Tocantins / Deep Seismic Refraction on Southestearn Sector of the Tocantins Province
This work to fulfil the degree of Master of Sciences is inserted among the deep seismic refraction studies of the Thematic Project Geophysical Studies and Tectonic Model of the Tocantins Province Central and Southeast Sectors, Central Brazil . Three refraction lines, of around 300 km long each, were deployed, two of them in the Central sector and the other i
Publicado em: 2000
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29. SUPRESSION GROUND ROLL BY EMPLOYING WAVALET / SUPRESSÃO DE RUÍDO DE ROLAMENTO SUPERFICIAL UTILIZANDO WAVELETS
Surface waves are a common source of unwanted noise in the seismic record. Ground roll can be defined as a group of events that contaminates seismic data and makes a high dip (low velocity) and high amplitude cone, this can dominate near-source on seismic records. Surface waves are such a problem in land seismic record acquisition that the design of acquisit
Publicado em: 1999
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30. Incertezas associadas a caracterização de reservatorio utilizando dados sismicos e de poços com uma abordagem geoestatistica
A petroleum reservo ir was characterized through integration of geologic information obtained from the well and 3D seismic data. The integration was accomplished by using geoestatistical tools (kriging with extemal drift, collocated cokriging and stochastic simulation). The reservoir is composed by an altemance of turbiditic sandstone and non-reservoir facie
Publicado em: 1998
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31. TEMISC: UMA TÉCNICA MISTA PARA SUBSTITUIÇÃO DE CAMADAS / TEMISC: A HYBRID TECHNIQUE FOR LAYER REPLACEMENT
O efeito causado por interfaces de topografias irregulares próximas à superfície nas reflexões de interesse provenientes de camadas mais profundas é um problema bem conhecido no processamento digital de dados sísmicos. Devido ao forte contraste de velocidades imposto por tais interfaces, estas reflexões perdem sua característica hiperbólica. Em cons
Publicado em: 1990