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Influence of acquisition parameters for 2D acoustic frequency-domain full-waveform inversion.
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 70th EAGE Conference and Exhibition - Workshops and Fieldtrips, Jun 2008, cp-41-00077
- ISBN: 978-94-6282-104-0
Abstract
In this paper, we studied and illustrated the influence of the acquisition parameters on the results of 2D<br>acoustic frequency domain full-waveform inversion. We considered two synthetic geological models: a<br>tilted layered blocks model and a complex salt dome model. In the first case, the inverse problem is quite<br>linear up to 5Hz frequency and full-waveform inversion gives well constrained models for more<br>industrial seismic acquisitions. In the salt dome context, the inverse problem is strongly non linear and<br>very low frequencies and large offsets are necessary for full-waveform inversion to reconstruct properly<br>the true velocity model. In this very complex case, dedicated acquisitions, like wide-offsets and low<br>frequency sources, need to be designed to ensure the success of the method