A wavelet phase-extraction method based on bispectrum estimation and phase-only filter optimization
- Yongcheng Tan (China University of Petroleum) | Yongshou Dai (China University of Petroleum) | Peng Zhang (China University of Petroleum) | Hongqian Zhang (China University of Petroleum)
- Document ID
- Society of Exploration Geophysicists
- 2017 SEG International Exposition and Annual Meeting, 24-29 September, Houston, Texas
- Publication Date
- Document Type
- Conference Paper
- 2017. Society of Exploration Geophysicists
- High-resolution, Seismic, Wavelet, Deconvolution
- 0 in the last 30 days
- 13 since 2007
- Show more detail
The extraction of seismic wavelet phase plays an important role in deconvolution and high resolution processing technique. In order to obtain the accurate phase of mixed-phase wavelet, this paper proposed a phase extraction method which combines bispectrum estimation algorithm with parameters optimization of phase only filter. First, the bispectrum of seismic records is used for phase estimation. Then, parameters of the phase only filter can be restricted based on bispectrum estimation results. Finally, the precise phase of wavelet is obtained by particle swarm optimization which can seek accurate parameters of the phase only filter. The simulation and comparison results show that the proposed method has effectiveness and is more efficient than conventional phase only filter method because parameters are limited by bispectrum estimation.
Presentation Date: Wednesday, September 27, 2017
Start Time: 4:20 PM
Presentation Type: ORAL
|File Size||957 KB||Number of Pages||5|
Matsuoka,T., andT. J.Ulrych,1984,Phase estimation using the bispectrum:Proceedings of the IEEE,72,1403–1411,10.1109/PROC.1984.13027.
Tang,B. W.,B.Zhao,Y. H.Wu, andH. Q.Li,2010,An improved spectral modeling deconvolution:80th Annual International Meeting, SEG, Expanded Abstracts,3668–3672,10.1190/1.3513612.
Yu,Y. C.,S. X.Wang,S. Y.Yuan, andP. F.Qi,2012,Phase spectrum estimation of the seismic wavelet based on a criterion function:Petroleum Science,9,170–181,10.1007/s12182-012-0197-6.
Yuan,S. Y., andS. X.Wang,2011,Influence of inaccurate wavelet phase estimation on seismic inversion:Applied Geophysics,8,48–59,10.1007/s11770-011-0273-5.
Zhang,Y. N.,Y. S.Dai,J.Chen,Y. Q.Wei, andJ. J.Ding,2013,The research on the influence of wavelet phase on the inversion results of reflection coefficient sequences by using the ARMA model of symmetrical mapping Pole-Zeros:Chinese Journal of Geophysics,56,2043–2054,10.6038/cjg20130625.
Zhang,Y. N.,Y. S.Dai,J. J.Ding,M. M.Zhang, andR. R.Wang,2014,A wavelet phase correction method based on phase-only filter:Geophysical Prospecting for Petroleum,53,26–31,10.3969/j.issn.1000-1441.2014.01.004.