Joint DGS/RMAG Luncheon – July 12, 2007

Title: Geoscience Integration to Overcome Seismic Imaging Problems in Thrust-Belt Environments

Speaker: Rob Vestrum, Thrust-Belt Imaging

Date: July 12, 2007

Publication: The Outcrop, July 2007, p. 4

As seismic-imaging algorithms become more sophisticated and correct more accurately for wave­-propagation effects of anisotropy and heterogeneity, the need for velocity-model accuracy increases. Seismic data in complex-structure land environments provide limited constraints to the seismic-imaging processes. To overcome this limitation, seismic imagers working in thrust belts use as many geological constraints as possible to refine the seismic image.

We may use structural-geology observations and principles to constrain our geophysical model and our seismic image to constrain our geological interpretation. As geologists and geophysicists work more closely together, we tighten this positive-feedback loop. Data examples illustrate how collaboration between structural geologist and seismic imager improves both geologic understanding and the seismic image from time and depth migration.

Please Note: There will be no RMAG Friday luncheon on Friday, July 13.