Banca de DEFESA: JOSE ROMERO DOS SANTOS SILVA JUNIOR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : JOSE ROMERO DOS SANTOS SILVA JUNIOR
DATE: 28/04/2025
TIME: 09:00
LOCAL: Videoconferência
TITLE:

Use of spectral decomposition, conditioning and seismic attributes techniques to highlight faults in a 3D seismic data located in the Estreito/Alto do Rodrigues region

KEY WORDS:

Spectral decomposition; Seismic attributes; Structural filtering; Fault detection; Potiguar Basin

PAGES: 41
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Geofísica
SPECIALTY: Geofísica Aplicada
SUMMARY:

The application of spectral decomposition and structurally oriented filtering techniques has proven effective in improving the structural interpretation of seismic data. This study aimed to optimize the seismic bandwidth and enhance the signal-to-noise ratio in a 3D seismic volume from the Estreito/Alto do Rodrigues field, located in the central-southern portion of the Potiguar Rift. The adopted methodology involved segmenting the seismic data into overlapping frequency sub-bands (15–85 Hz), applying the Dip Stee-ring Median Filter (DSMF), and using seismic attributes such as similarity, pseudo-relief, Fault Likelihood (FL), and Thinned Fault Likelihood (TFL) to improve fault identification. The results showed that lower-frequency bands allow for the visualization of deeper structures in the seismic sections, while higher-frequency bands exhibit more segmented reflectors, which may hinder seismic interpretation. The combined use of spectral filtering and attribute analysis enabled a more detailed interpretation of fault-related structures, including a flower structure, a possible inversion structure, and major faults trending northeast-southwest.

COMMITTEE MEMBERS:
Presidente - 2490483 - ALEX FRANCISCO ANTUNES
Externo ao Programa - 1755591 - CARLOS CESAR NASCIMENTO DA SILVA - nullExterna à Instituição - KAREN MARIA LEOPOLDINO OLIVEIRA - UFC