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Abstract

Summary

Extended waveform inversion (EWI) fills the gap between migration velocity analysis (MVA) and waveform inversion (WI). It’s less prone to local minimum when the starting velocity is inadequate for conventional WI. To improve the efficiency of EWI, we extend the velocity model in the plane-wave source domain. To weaken the absolute amplitude information and make plane-wave encoding applicable in the real data processing, we use normalized wavefields in the data-misfit term of objective function. Numerical tests show that EWI can successfully and efficiently build a high-resolution velocity model for the onshore seismic dataset.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201413500
2015-06-01
2024-04-27

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References

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Application of Plane-wave Extended Waveform Inversion to an Onshore Seismic Dataset
Conference Proceedings 2015, 1 (2015); https://doi.org/10.3997/2214-4609.201413500
/content/papers/10.3997/2214-4609.201413500
/content/papers/10.3997/2214-4609.201413500
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