Seismic wave attenuation, typically quantified by Q, is a notoriously challenging problem in seismic imaging and interpretation with poor signal-to-noise ratio (S/N) and poor resolution. To produce a reliable Q model, we propose a Q tomography method which is based on ray-tracing theory applied on migrated images. To measure Q on the migrated images, we adopt the extended spectral ratio method developed by . This new extended spectral ratio method yields the wavenumber-dependent common factors instead of frequency-dependent factors which can be implemented by ray-tracing methods directly. Numerical tests demonstrate the feasibility of this Q estimation method and lead to a noticeable improvement in the image quality.


Article metrics loading...

Loading full text...

Full text loading...


  1. Bickel, S. H., and R. R.Natarajan
    [1985] Plane-wave Q deconvolution.Geophysics, 50, 1426–1439.
    [Google Scholar]
  2. Shen, Y., B.Biondi, R.Clapp, and D.Nichols
    [2013] Wave-equation migration Q analysis (WEMQA). EAGE Workshop on Seismic Attenuation, Extended Abstracts.
    [Google Scholar]
  3. Shen, Y., and T.Zhu
    [2015] Image-based Q tomography using reverse time Q migration. 85th Annual International Meeting, SEG, Expanded Abstracts, 3694–3698.
    [Google Scholar]
  4. Shen, Y., and B.Biondi, and R.Clapp
    [2018] Q-model building using one-way wave-equation migration Q analysis-Part 1: Theory and synthetic test.Geophysics, 83, 93–109.
    [Google Scholar]
  5. Tonn, R.
    [1991] The determination of seismic quality factor Q from VSP data: A comparison of different computational methods.Geophysical Prospecting, 39, 1–27.
    [Google Scholar]
  6. Xin, K., B.Hung, S.Birdus, and J.Sun
    [2008] 3D tomographic amplitude inversion for compensating amplitude attenuation in the overburden. 78th Annual International Meeting, SEG, Expanded Abstracts, 27, 3239.
    [Google Scholar]
  7. Xie, Y., K.Xin, J.Sun, C.Notfors, A.Biswal, and M.Balasubramaniam
    [2009] 3D prestack depth migration with compensation for frequency dependent absorption and dispersion. 79th Annual International Meeting, SEG, Expanded Abstracts, 2919–2923.
    [Google Scholar]
  8. Yu, Y., R.Lu, and M.Deal
    [2002] Compensation for the effects of shallow gas attenuation with visco-acoustic wave equation migration. 72nd Annual International Meeting, SEG, Expanded Abstracts, 2062–2065.
    [Google Scholar]
  9. Zhang, Y., P.Zhang, and H.Zhang
    [2010] Compensation for visco-acoustic effects in reverse-time migration. 80th Annual International Meeting, SEG, Expanded Abstracts, 3160–3164.
    [Google Scholar]

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