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Imaging Pitfalls around Salt Domes from the Picanha Area, Offshore Brazil
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 80th EAGE Conference and Exhibition 2018, Jun 2018, Volume 2018, p.1 - 5
Abstract
Summary
The imaging condition for reverse-time migration is known to produce various classes of imaging artefact due to the cross talk between physical and non-physical travel paths from the source and receiver sides of the wavefield propagation. In the case of very strong impedance contrasts, such as at top salt, these artifacts can seriously mislead interpreters, giving rise to sub-standard velocity models.
Here we present an example of these artefacts from the deep-water Picanha region, offshore Brazil, and propose strategies to avoid this particular pitfall.
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