14811 St. Mary's Lane | Houston, TX 77079 | T: 713-463-9477 | F: 281-679-5504
Fugro6100 HillcroftHouston TX 77081 Google Maps | Hotels Near | Yahoo! Maps | Weather Forecast | Speaker Bee Bednar & Sergey Fomel |
Gaussian beams are locally coherent seismic events characterized by amplitude, position, slope, and complex-valued curvature. We apply analytical derivations to analyze the transformation of Gaussian beams in time-domain imaging, including prestack and post-stack time migration, as well as offset continuation and transformation to zero offset. We show that all common time-domain imaging operations for Gaussian beams can be described by analytical equations. Moreover, if both midpoint and offset (or, equivalently, source and receiver) slopes are defined in the prestack case, time-domain imaging of Gaussian beams is a straightforward mapping that does not require knowledge or estimation of seismic velocities.
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| Steve Cole | Marta Woodward | ||
| (713) 369-5883 | (713) 689-6153 | ||
After receiving a Ph.D. in Mathematics from the University of Texas at Austin, Bee did research in Anti-Submarine Warfare at Tracor and taught Mathematics at Drexel University and the University of Tulsa. He was Manager of Seismic Research at Cities Service Company and later became Manager and then Director of Geophysical Sciences at Amerada Hess, where he was instrumental in development of distributed seismic processing software and lead Amerada to the forefront of prestack beam based depth imaging and computer assisted interpretation.
Sergey Fomel is an Associate Professor at the Jackson School of Geosciences, the University of Texas at Austin, with a joint appointment between the Bureau of Economic Geology and the Department of Geological Sciences. He received a Ph.D. in Geophysics from Stanford University in 2001 and worked previously at the Institute of Geophysics in Russia and the Lawrence Berkeley National Laboratory. Sergey's presentations have appeared on the Top 30 SEG presentations list 8 times in a row. Among his awards are the J. Clarence Karcher Award from SEG in 2001 and the Best Poster Presentation Award from SEG in 2007. Sergey devotes part of his time to developing "Madagascar", an open-source software package for geophysical data analysis.
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