AGUDELO , W.

Whether refining seismic images to evaluate opportunities in mature areas and exploit the maximum resource, or exploring in frontier areas, determining an accurate velocity model within the turnaround time constraints of reservoir management and exploration timeframes is critical. Speed, robustness, and accuracy are equally important. Seismic...

Tectonic processes that control the transition from poorly consolidated sediment entering the subduction channel (SC) to the seismogenic zone are documented using seismic imaging. We applied pre-stack depth migration and a post-processing sequence to a seismic reflection line acquired across the Ecuador convergent margin to obtain a...

Improving seismic imaging of the crust is essential for understanding the structural factors controlling subduction zones processes. We developed a processing work flow based on the combined analysis of multichannel seismic reflection (MCS) and wide angle (WA) reflection/refraction data to derive both shallow and deep velocities suitable for...

International audience

Splay faults within accretionary complexes are commonly associated with the updip limit of the seismogenic zone. Prestack depth migration of a multichannel seismic line across the north Ecuador–south Colombia oceanic margin images a crustal splay fault that correlates with the seaward limit of the rupture zone of the 1958 (Mw 7.7) tsunamogenic...

To analyze the physical properties of seismic reflectors as possible indicators of the presence of fluids, we apply a processing sequence based on preserved amplitude prestack depth migration/inversion (PSDM) coupled with a post-processing of the depth migrated image. Aim of the post-processing is to remove the effects of the limited source...

A seismic processing workflow based on iterative migration/inversion and target-oriented postprocessing of the migrated image is developed for fine-scale quantitative characterization of reflectors. The first step of the workflow involves linear iterations of the migration/inversion. The output of the first step is a true-amplitude migrated...

International audience

International audience

Journal of Geophysical Research, v. 109, p. B11103, 2004. http://dx.doi.org/10.1029/2004JB003060