Coeficientes de reflexão elasticos : analise e aplicações / Elastic reflection coefficents : analysis and applications

AUTOR(ES)

Valeria Grosfeld

DATA DE PUBLICAÇÃO

2007

RESUMO

In this work we are concerned with the reflection coefficients RPP and RPS for elastic waves. Based on the success of an impedance type approximation for the coefficient RPP in the critical region, we introduce a new approximation for the coefficient RPS. Although the new approximation was not so good as for the previous in the RPP case, comparing our approach with the existing ones we found that its behaviour is a little better than the preceding approaches. This comparison was made using a new methodology based on performace profile curves. Moreover, we show that, using the impedance type approximation for the reflection coeficient RPP , it is possible to get an indicator that reacts to the presence of hydrocarbons without the necessity of the invert the data. We also demostrate that under suitable conditions some elastic parameters of the rocks can be estimated directly from the data. Finally, we analyse the effect of seismic processing in order to obtain our estimate in synthetic data

ASSUNTO(S)

elastic parameters estimation geophysics reflection coefficients hydrocarbons indicators hidrocarbonetos seismic waves geofisica ondas sismicas

Documentos Relacionados

• Aproximações para os coefcientesde reflexão e analise de AVO
• Reflexão sísmica rasa: estimativa de parâmetros elásticos pela inversão dos coeficientes de reflexão da onda P acima do ângulo crítico
• Cálculo dos coeficientes de reflexão e transmissão em meios anisotrópicos
• Dialogue and Reflection
• Ensino de literatura : formação, reflexão e pratica