1887

Abstract

Summary

Hyperbolic Radon transform is an important method for multiple attenuation. But for seismic data of VTI media and marine large offset, its reflected wave event can not satisfy the relationship of hyperbolic travel time and energy in the Radon domain can not get a good focus. Therefore, we introduced anisotropy parameter η in hyperbolic time-distance relationship to describe the relationship of time-distance curve of VTI medium and large offset marine seismic data, in order to get a good focus of energy in Radon domain. In order to improve the resolution of Radon transform, we used sparse constraints based on L1 norm and introduced CGG (Conjugate Guided Gradient) algorithm to improve the computational efficiency of the Radon transform to meet the requirement of actual data processing. The test of model data and real marine data with large offset indicates that this method can achieve good results in multiple attenuation.

Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.201412832
2015-06-01
2020-07-11
Loading full text...

Full text loading...

References

  1. Ji, J.
    [2006] Cgg method for robust inversion and its application to velocity-stack inversion. Geophysics, 71(4), R59–R67.
    [Google Scholar]
  2. YujinLiu, Z.Peng, W. W.Symes et al.
    [2013] Sparse Radon transform with dual gradient ascent method. 83rd Annual International Meeting, SEG, 2013, 4650–4655.
    [Google Scholar]
  3. Gong, X.B., Lv, Q.T., Han, L.G.
    [2013] Anisotropic Radon transform. 75th EAGE Conference & Exhibition, Extended Abstracts.
    [Google Scholar]
  4. Alkhalifah, T., Tsvankin, I.
    [1995] Velocity analysis for transversely isotropic media. Geophysics, 60(5), 1550–1566.
    [Google Scholar]
  5. Sacchi, M.D. and T.J.Ulrych
    [1995] High-resolution velocity gathers and offset space reconstruction. Geophysics, 60, 1169–1177.
    [Google Scholar]
  6. Trad, D., T.Ulrych, and M.Sacchi
    , [2003] Latest views of the sparse radon transform. Geophysics, 68, 386–399.
    [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201412832
Loading
/content/papers/10.3997/2214-4609.201412832
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