The separation of P- and S-wave components from three-component crosswell seismic data

  • Liu J
  • Zeng X
  • Xia J
 et al. 
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Abstract

We present a method of separation of P- and S-wave components from three-component (3C) crosswell seismic data. Based on differences between P and S waves in polarization and apparent velocity, this method separates P and S waves in a common source gather without estimating emergence angles and by means of data processing techniques including band-pass filter for preprocessing, high-resolution τ-p transform for removing tube waves and separating up-going and down-going waves, and covariance polarization analysis for correcting the direction of geophone and separating polarization. To separate P- and S-wave data, this method requires only the input of original 3C crosswell data and the first arrivals of P waves. We verify and demonstrate effectiveness and practicability of this method using 2C modeling tests as well as real 3C crosswell data. © 2012 Elsevier B.V..

Author-supplied keywords

  • 3C crosswell data
  • Apparent velocity
  • P- and S- wave separation
  • Polarization

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Authors

  • Jiangping Liu

  • Xiangzhi Zeng

  • Jianghai Xia

  • Mao Mao

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