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Communication Dans Un Congrès Année : 2008

3-D refraction traveltime tomography algorithm based on adjoint state techniques

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Mark S. Noble
Henri Calandra
  • Fonction : Auteur
  • PersonId : 856259
Hervé Chauris

Résumé

Classical 3-D refraction traveltime tomography algorithms may suffer from computational limitations due to the large datasets that come from current seismic acquisition surveys. To overcome these issues, we suggest a 3-D refraction tomography algorithm based on adjoint state techniques to derive the gradient of the traveltime misfit function. We use the Eikonal equation for the forward modelling, and iterate with a conjugate gradient method. A 3-D synthetic example with a realistic size acquisition demonstrates the efficiency and the great potential of the adjoint state method for 3-D applications of refraction tomography.
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Dates et versions

hal-00535846 , version 1 (13-11-2010)

Identifiants

  • HAL Id : hal-00535846 , version 1

Citer

Cédric Taillandier, Mark S. Noble, Henri Calandra, Hervé Chauris, Pascal Podvin. 3-D refraction traveltime tomography algorithm based on adjoint state techniques. 70th EAGE Conference and Technical Exhibition, Eur. Ass. of Geoscientists and Engineers, Jun 2008, Rome, Italy. pp.P163. ⟨hal-00535846⟩
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