1887

Abstract

Summary

The Perdido area at the Mexican Gulf of Mexico (GOM) consists of complex geology settings, making it challenging to build accurate velocity models for subsalt imaging. Conventional technologies including manual salt interpretation have not been able to resolve the velocity in this area. While full-waveform inversion (FWI) has been successfully applied to update sedimentary overburdens, it has struggled to update salt until recently. In this case study, we show how we used time-lag FWI (TLFWI) to update the velocity, including salt velocity, using two available WAZ surveys in NS and EW directions. We also discuss the remaining challenges.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201900339
2019-04-24
2024-03-29
Loading full text...

Full text loading...

References

  1. Shen, X., Ahmed, I., Brenders, A., Dellinger, J., Etgen, J., and Michell, S.
    [2017] Salt model building at Atlantis with full-waveform inversion. SEG Technical Program Expanded Abstracts 2017, 1507– 1511.
    [Google Scholar]
  2. Tarantola, A.
    [1984] Inversion of seismic reflection data in the acoustic approximation. Geophysics,49(8), 1259–1266.
    [Google Scholar]
  3. Zhang, Z., Mei, J., Lin, F., Huang, R., and Wang, P.
    [2018] Correcting for salt misinterpretation with full-waveform inversion. SEG Technical Program Expanded Abstracts 2018,1143–1147.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201900339
Loading
/content/papers/10.3997/2214-4609.201900339
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