Análise de sensibilidade do esquema de inversão de dados de onda qP em experimentos de VSP walkaway multiazimutal
This Senior Research Project will show a research about an inversion scheme to determine local anisotropy in the vicinity of receiver located in a borehole through data from a walkaway multi-azimuthal VSP experiment. The data are the vertical components of the slowness vector and of the polarizat...
| Autor principal: | MACAMBIRA, Raiza de Nazaré Assunção |
|---|---|
| Grau: | Trabalho de Conclusão de Curso - Graduação |
| Publicado em: |
2019
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| Assuntos: | |
| Acesso em linha: |
http://bdm.ufpa.br/jspui/handle/prefix/1757 |
| Resumo: |
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This Senior Research Project will show a research about an inversion scheme to determine
local anisotropy in the vicinity of receiver located in a borehole through data from a walkaway
multi-azimuthal VSP experiment. The data are the vertical components of the slowness
vector and of the polarization vector of the direct and re
ected qP waves. The inversion is
made through approximate rst-order around an isotropic medium of reference establishing
a linear expression between weak anisotropy parameters (parameters WA) and the vertical
components of slowness and polarization vector. Then is presented an analysis of sensitivity
this formulation about the number of sources organized by pro le, then is made an analysis
about the choice of parameters of the isotropic medium of reference. |