1887

Abstract

Summary

Geologically reasonable, data-driven velocity model building is a critical process for seismic imaging, particularly when the velocity is strongly heterogeneous within a layer or structure. When such features are prominent in the shallow, disruption of the signal may propagate through a significant portion of the image. A hybrid tomography-FWI workflow incorporating image-guided tomography and phase-only reflection full-waveform inversion is proposed as a method for generating robust and detailed model updates in these situations. Application to a narrow azimuth streamer survey demonstrates the effectiveness of the method in yielding detailed model updates and simplified geological structures in the final image.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201900033
2019-04-04
2024-03-29
Loading full text...

Full text loading...

References

  1. Hilburn, G., He, Y., Yan, Z. and SherrillF.
    [2014] High-resolution tomographic inversion with image-guided preconditioning and offset-dependent picking. 76th Annual International Meeting, SEG, Expanded Abstracts, 4768–4772.
    [Google Scholar]
  2. Mao, J., Sheng, J., Hart, M. and Kim, T.
    [2016] High-resolution model building with multistage full-waveform inversion for narrow-azimuth acquisition data. The Leading Edge, 35(12), 1031–1036.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201900033
Loading
/content/papers/10.3997/2214-4609.201900033
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error