1887

Abstract

In the context of velocity model building, we examine if the velocity models obtained after<br>first-arrival traveltime tomography are accurate enough for subsequent full waveform<br>inversion of reflected energy. For that purpose, we test the quality of the velocity model<br>obtained by first-arrival traveltime tomography on the BP salt dome model. Several 1-D<br>inversions are conducted in two different zones. In the simplest zone corresponding to smooth<br>velocity models, the tomographic models are good enough for waveform inversion with<br>realistic frequency contents. In the complex part going through a salt body, one need very low<br>frequencies (starting at around 1 Hz) or a further refinement of the tomographic model.

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/content/papers/10.3997/2214-4609.201405069
2008-06-09
2020-12-02
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201405069
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