Journal of Jilin University(Earth Science Edition) ›› 2017, Vol. 47 ›› Issue (1): 245-254.doi: 10.13278/j.cnki.jjuese.201701304

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Seismic Illumination Analysis Based on the Poynting Vector

Yang Hongyu, Liu Jicheng, Duan Yubo   

  1. School of Electronic and Information Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, China
  • Received:2016-09-22 Online:2017-01-26 Published:2017-01-26
  • Supported by:
    Supported byNatural Science Foundation of Heilongjiang Province, China (2014F04)

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Abstract: The major factors impacting the quality of reverse time migration can be quantified via seismic illumination analysis. A target-oriented seismic directional illumination analysis and imaging compensation method based on Poynting vector is implemented. The source and receiver waves are decomposed into different propagation directions based on their Poynting vectors. Partial illumination from incident/scattering waves propagating along different directions are calculated and a local illumination matrix is acqcuired. The matrix is composed of information related to the incident angle, scattering angle, reflection angle, and the structure dip angle, which can be used as the basis for angle-domain illumination analysis. The subsurface illumination and acquisition dip response can be obtained according to local illumination matrix and image can be compensated by acquisition dip response. SEG/EAGE model is used as a numerical example and the image quantity is improved effectively. The method can be used on image compensation and resolution analysis efficiently.

Key words: Poynting vector, local illumination matrix, illumination analysis, acquisition dip response

CLC Number: 

  • P631.4
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