Lithologic Reservoirs ›› 2014, Vol. 26 ›› Issue (5): 91-96.doi: 10.3969/j.issn.1673-8926.2014.05.017

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Wave field separating numerical simulation of anisotropic elastic medium directional one-way wave

CHEN Keyang   

  1. Research Institute of Exploration and Development， PetroChina Daqing Oilfield Company Ltd.，Daqing 163712， Heilongjiang， China
  • Online:2014-10-20 Published:2014-10-20

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Abstract:

 In order to further improve the knowledge of elastic wave propagation law, this paper firstly applied the Poynting vector to the up-down-left-right way wave field separation numerical simulation of multi-wave and multi-component anisotropicmediumelasticwave equation. According to the Poynting vector wave field numerical characteristic, the seismic one way wave field was automatically recognized and separated during the elastic wave numerical simulation. Taking isotropic anisotropic elastic medium model, tilt layer model and Marmousi model as examples, we carried out the corresponding numerical simulation. The result shows that the presented method can be used to obtain correct and effective computational results, it can achieve the up-down-left-right way wave field separation in both the snapshots and the numerical records, and the computational method is simple and easy to accomplish with small computational cost. Therefore, it has important application value in practical data processing and interpretation of multi-wave and multi-component elastic wave.

Key words: sequence stratigraphy, sedimentary evolution, sedimentary model, Chang 82 sublayer, Ordos Basin

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