Banca de QUALIFICAÇÃO: ITALO DANTAS DOS SANTOS
Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.DISCENTE : ITALO DANTAS DOS SANTOS
DATA : 01/08/2019
HORA: 09:00
LOCAL: Sala 2
TÍTULO:
SEISMIC PROCESSING APPLIED TO SHALLOW MARINE SEISMIC PROFILE DATA (BOOMER, CHIP AND SPARKER SYSTEMS)
PALAVRAS-CHAVES:
High-frequency seismic reflection; deconvolution; migration
PÁGINAS: 23
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
RESUMO:
Processing of single channel seismic data plays a fundamental role in correlating the seismic data with the investigated geological model. Single channel seismic data (boomer, sparker, and chirp) have limitations such as the effect of the source on the seismic trace, multiple reflections and ghost reflections. The presence of these artifacts in the data contributes to a low signal to noise ratio and, consequently, may induce ambiguous geological interpretations. The purpose of this work is to apply conventional seismic processing techniques such as deconvolution and migration to reduce wavelet effects, suppress short period multiples and increase vertical resolution in single channel seismic data to improve data interpretability. Deconvolution has been tested to suppress the effects of seismic wavelet, as well as attenuating multiple of the seafloor present in the data. Migration was applied to correct the position of the reflectors and increase the signal to noise ratio. The results showed that it is possible to improve the definition and lateral continuation of the reflectors. Multiples were attenuated with predictive deconvolution. The application of Stolt migration showed results in suppressing the energy of the surface amplitudes associated with the seabed, generating seismic sections that portray the geological model closest to reality.
MEMBROS DA BANCA:
Presidente - 1451214 - ADERSON FARIAS DO NASCIMENTO
Interno - 219.901.818-05 - YOE ALAIN REYES PEREZ - UFRN
Externo ao Programa - 026.534.074-85 - FLAVIO LEMOS DE SANTANA
Externo ao Programa - 1347984 - GERMAN GARABITO CALLAPINO