1887

Abstract

Summary

Land full waveform inversion (FWI) is hindered by the presence of surface waves, near-surface heterogeneities, topography, and elastic effects. Broadband and large offset data acquisitions have been developed with the aim of investigating FWI as a tool for velocity model building in land environments. FWI using minimally-processed refractions and diving waves provides an efficient solution to recover long spatial wavelengths in the velocity model. This method has been proposed as a means to enhance standard reflection-based methods. Rather than settle for the recovery of long-to-intermediate spatial wavelengths, we incorporate reflection data in the FWI and move to higher frequencies (up to 13Hz) with the aim of recovering a level of model resolution that is comparable to marine case studies. By incorporating reflection data we recover details such as channels and fault structures and see improved imaging results over conventional migration velocity analysis. We outline a data preprocessing sequence tailored for improving data quality at low frequencies and long offsets and describe the FWI workflow. We show the resolution uplift over refraction-based FWI and compare migrated stacks generated with the standard tomography model to that generated with the high frequency FWI result.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201701163
2017-06-12
2020-06-03
Loading full text...

Full text loading...

References

  1. Baeten, G., J.W.de Maag, R. ÉPlessix, R.Klaassen, R. T.Qureshi, M.Kleemeyer, F.ten Kroode, and R.Zhang
    , [2013] The use of low frequencies in a full-waveform inversion and impedance inversion land seismic case study: Geophysical Prospecting61, 701–711.
    [Google Scholar]
  2. Hugonnet, P., J.L.Boelle and F.Prat
    , [2012] Local linear events extraction and filtering in the presence of time-shifts: 74th EAGE Conference & Exhibition, Expanded Abstracts, 1024.
    [Google Scholar]
  3. Le MeurD., N.Benjamin, R.Cole and M.Al Harthy
    , [2008] Adaptive groundroll filtering: 70th EAGE Conference & Exhibition, Expanded Abstracts, G036.
    [Google Scholar]
  4. Mahrooqi, S., S.Rawahi, S.Yarubi, S.Abri, A.Yahyai, M.Jahdhami, K.Hunt, and J.Shorter
    , [2012] Land seismic low frequencies: Acquisition, processing and full wave inversion of 1.5–86 hz. 82nd Annual International Meeting, SEG, Expanded Abstracts, 1–5.
    [Google Scholar]
  5. Pérez Solano, C.A., A.Stopin and R.ÉPlessix
    [2013] Synthetic Study of Elastic Effects on Acoustic Full Waveform Inversion: 75th EAGE Conference & Exhibition, Expanded Abstracts, Th P10 10.
    [Google Scholar]
  6. Plessix, R.É, G.Baeten, J.W.de Maag, M.Klaassen, R.Zhang, and T.Zhifei
    , [2010] Application of acoustic full waveform inversion to a low-frequency large offset land data set. 80th Annual International Meeting, SEG, Expanded Abstracts, 930–934.
    [Google Scholar]
  7. Plessix, R.É, G.Baeten, J.W.de Maag, F.ten Kroode, Z.Rujie
    [2012] Full waveform inversion and distance separated simultaneous sweeping: a study with a land seismic data set. Geophysical Prospecting60, 733–747.
    [Google Scholar]
  8. Plessix, R.É, P.Milcik, H.Rynja, A.Stopin, K.Matson and S.Abri
    [2013] Multiparameter full-waveform inversion: Marine and land examples. The Leading Edge32, 9, 1030–1038.
    [Google Scholar]
  9. Retailleau, M., R.El Asrag and J.Shorter
    , [2014] Processing land broadband data: results and challenges on Oman surveys. SPG/EAGE workshop on Broadband Seismic.
    [Google Scholar]
  10. Retailleau, M.
    , [2015] Imaging the near surface using surface consistent prediction operators: examples from the Middle East: 77th EAGE Conference & Exhibition, Expanded Abstracts, Th N116 09.
    [Google Scholar]
  11. Sternfels, R., G.Viguier, R.Gondoin and D.Le Meur
    , [2015] Multidimensional simultaneous random plus erratic noise attenuation and interpolation for seismic data by joint lowrank and sparse inversion: Geophysics, 80(6), WD129–WD141.
    [Google Scholar]
  12. Stopin, A., R.ÉPlessix, and A.A.Said
    , [2014] Multiparameter waveform inversion of a large wide azimuth low-frequency land data set in Oman: Geophysics, 79(3), WA67–WA77.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201701163
Loading
/content/papers/10.3997/2214-4609.201701163
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