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Solving imaging challenges in a deep-water, complex ooze regime: a case study from the Outer Vøring area, Norwegian SeaNormal access

Authors: Sören Naumann, Øystein Korsmo and Grunde Rønholt
Journal name: First Break
Issue: Vol 36, No 6, June 2018 pp. 51 - 55
Language: English
Info: Article, PDF ( 6.16Mb )
Price: € 30

Summary:
A high-resolution velocity model is required in order to produce an accurate image of the subsurface in any complex eeological setting. In shallow water environments, diving wave and refraction-based FWI has been widely used to resolve small-scale features. However, the depth that can be updated is limited by the deepest turning point of the diving waves. In a deep-water environment the use of diving waves and refractions is generally limited by the lack of ultra-far offsets required to record a sufficient amount of refracted energy. Furthermore, diving wave and refraction-based FWI assumes a medium with increasing interval velocities at all depths of interest.


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