期刊文献+

Full waveform inversion based on initial model built from envelope inversion

Full waveform inversion based on initial model built from envelope inversion
下载PDF
导出
摘要 Full waveform inversion is a fitting process based on full seismic wave field simulation data using the full waveform information in seismic records and theoretically it is the ultimate goal of seismic inversion. However,there are many problems to be solved in practical application. Firstly,it is the strong nonlinear problem between the seismic wave field and inversion parameters; secondly,the lack of low-frequency information in seismic records. In this study,the envelope is used as objective function inversion to provide the inversion result for the multi-scale full waveform inversion as the initial model,solving the lack of low-frequency information in seismic records. Taking the envelope of seismic records as the objective function in combination of multi-scale full waveform inversion became a new inversion strategy,which naturally achieved the compensation of shortage of low-frequency information and inversion from low frequency to high frequency,reducing the non-linearity in the inversion process. The comparison of the result of full waveform inversion of the initial model built through envelope inversion with the result of the conventional multi-scale full waveform inversion indicates the effectiveness of envelope inversion for the recovery of low-frequency information in seismic records. Full waveform inversion is a fitting process based on full seismic wave field simulation data using the full waveform information in seismic records and theoretically it is the ultimate goal of seismic inversion. However,there are many problems to be solved in practical application. Firstly,it is the strong nonlinear problem between the seismic wave field and inversion parameters; secondly,the lack of low-frequency information in seismic records. In this study,the envelope is used as objective function inversion to provide the inversion result for the multi-scale full waveform inversion as the initial model,solving the lack of low-frequency information in seismic records. Taking the envelope of seismic records as the objective function in combination of multi-scale full waveform inversion became a new inversion strategy,which naturally achieved the compensation of shortage of low-frequency information and inversion from low frequency to high frequency,reducing the non-linearity in the inversion process. The comparison of the result of full waveform inversion of the initial model built through envelope inversion with the result of the conventional multi-scale full waveform inversion indicates the effectiveness of envelope inversion for the recovery of low-frequency information in seismic records.
出处 《Global Geology》 2018年第1期62-67,共6页 世界地质(英文版)
基金 Supported by Project of National Natural Science Foundation of China(No.41274120)
关键词 MULTI-SCALE full WAVEFORM INVERSION ENVELOPE INVERSION objective function LOW-FREQUENCY information multi-scale full waveform inversion envelope inversion objective function low-frequency infor mation
  • 引文网络
  • 相关文献

参考文献2

二级参考文献60

  • 1杨文采,杨午阳,程振炎.中国大陆科学钻探孔区的地震波速模型[J].地球物理学报,2006,49(2):477-489. 被引量:30
  • 2杨文采,杨午阳,程振炎.中国大陆科学钻探孔区地震反射的标定[J].地球物理学报,2006,49(6):1682-1692. 被引量:13
  • 3杨文采.岩石的粘弹性谐振Q模型[J].地球物理学报,1987,30(4):399-411.
  • 4Denes Vigh, E William Starr, Staag Imaging L P. Comparisons for Waveform Inversion, Time Domain or Frequency Domain? [J]. SEG Las Vegas 2008 Annual Meeting, 2008 : 1890-1894.
  • 5Sun, R. , G. A. McMeehan. 2D full-wavefield inversion for wide-aperture, elastic, seismic data[J]. Geoph-ysical Journal International, 1992, 111:11-10.
  • 6Tarantola A. Inversion of seismic reflection data in the acoustic approximation[J]. Geophysics, 1984,49: 1259-1266.
  • 7Crase E C, Wideman M Noble, A Tarantola. Nonlinear elastic inversion of land seismic reflection data [J]. Journal of Geophysical Research, 1992,97: 4685-4705.
  • 8Pica AJ, P Diet, A Tarantola. Nonlinear inversion of seismic reflection data in laterally invariant medium[J]. Geophysics, 1990,55:284-292.
  • 9Tarantola A. Inverse problem theory: Methods for data fitting and model parameter estimation[J]. Elsevier, 1987.
  • 10Bin Gong, Guoquan Chen, David Yingst, et al. 3D Waveforrn Inversion based on Reverse Time Migration engine[J]. SEG Las Vegas, 2008 Annual Meeting,2008:1900-1904.

共引文献70

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部