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Wavefield forward modeling with the pseudo-spectral method in viscoelastic and azimuthally anisotropic media

Du Qi-Zhen

Wavefield forward modeling with the pseudo-spectral method in viscoelastic and azimuthally anisotropic media

Du Qi-Zhen
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  • PDF Downloads:  1286
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Publishing process
  • Received Date:  31 January 2004
  • Accepted Date:  13 April 2004
  • Published Online:  05 June 2004

Wavefield forward modeling with the pseudo-spectral method in viscoelastic and azimuthally anisotropic media

  • 1. 石油大学(华东)地球资源与信息学院,东营 257061石油大学中国石油天然气集团公司物探重点实验室,北京 102249胜利油田有限公司物探研究院博士后科研工作分站,东营 257022

Abstract: When a seismic signal propagates through a realistic medium in the Earth, in add ition to anisotropy, the layers may show intrinsic viscoelastic behavior. Thus, an accurate description of wave propagation requires a rheology that accounts for the anisotropic and viscoelastic behavior of rocks. On this basis, the pseudo spectral recursive formulae of viscoelastic and azimuthally anisotropic media are derived. Wavefield forward modeling with the pseudo-spectral method was car ried out in viscoelastic and azimuthally anisotropic media. The numerical results from the pseudo-spectral method clearly show that seismic wavefield is closely related with the viscoelasticity and the azimuth of the principal axes of anis otropy.

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