SEPTEMBER 2023 LUNCHEON MEETING
Gabriel Gil
presents
Use of Phase Decomposition for Better Seismic Analysis
11:30 AM Wednesday, September 20, 2023
at Willow Brook Country Club
3205 W Erwin St.
Tyler, TX 75702
Cost: $25 if you RSVP
$30 at the door if you do NOT reserve
Abstract
Analysis and interpretation of seismic data on reservoir events can be complicated due interference between reflectors and between lithologic and fluid contributions to layer responses. Phase Decomposition is a process that breaks the seismic trace into different phase components, isolating contributions to seismic events associated with specific rock and fluid variations. In the simplest case, anomalous behavior in seismically thin layers with defined geometries can be amplified or suppressed on individual phase components which simultaneously convey amplitude and phase information. Phase Decomposition can be used to remove interference of layers, isolating the seismic response of the reservoir, and thereby providing a better seismic image and improved interpretability. This analysis can be extended to identify lithology and fluid variations in the reservoir. Examples of the applications of Phase Decomposition on synthetic and real data are presented on different types of reservoirs showing the improved reservoir identification and delineation provided on key phase components.
Biography
Gabriel Gil
Gabriel received his bachelor’s degree in Geophysical Engineering from the Simon Bolivar University in Caracas, Venezuela in 2003, and his Master in Science degree in Geophysics at the University of Houston under the advice of Dr. John P. Castagna in 2010. Gabriel counts with more than 15 years of experience in Reservoir Geophysics, with some experience in seismic processing and acquisition. He previously worked CGGVeritas and in 2010, Gabriel joined Lumina where he has occupied several technical and management positions. His areas of expertise are data processing and conditioning, AVO analysis, Rock Physics, seismic inversion, spectral decomposition analysis, spectral inversion, seismic interpretation and quantitative interpretation. He is currently holding the position of Chief Geophysicist at Lumina Technologies, Inc