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Applied Geophysics

, Volume 14, Issue 4, pp 523–528 | Cite as

Time-domain wavefield reconstruction inversion

  • Zhen-Chun Li
  • Yu-Zhao Lin
  • Kai Zhang
  • Yuan-Yuan Li
  • Zhen-Nan Yu
Article

Abstract

Wavefield reconstruction inversion (WRI) is an improved full waveform inversion theory that has been proposed in recent years. WRI method expands the searching space by introducing the wave equation into the objective function and reconstructing the wavefield to update model parameters, thereby improving the computing efficiency and mitigating the influence of the local minimum. However, frequency-domain WRI is difficult to apply to real seismic data because of the high computational memory demand and requirement of time-frequency transformation with additional computational costs. In this paper, wavefield reconstruction inversion theory is extended into the time domain, the augmented wave equation of WRI is derived in the time domain, and the model gradient is modified according to the numerical test with anomalies. The examples of synthetic data illustrate the accuracy of time-domain WRI and the low dependency of WRI on low-frequency information.

Keywords

Wavefield reconstruction waveform inversion augmented wave equation timedomain inversion 

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Notes

Acknowledgments

We are grateful to SWPI laboratory staff for their support and providing use of Matlab software. We also wish to thank Zhang Hua and Yuan San-Yi for their constructive comments.

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Copyright information

© Editorial Office of Applied Geophysics and Springer-Verlag GmbH Germany, part of Springer Nature 2017

Authors and Affiliations

  • Zhen-Chun Li
    • 1
    • 2
  • Yu-Zhao Lin
    • 1
    • 2
  • Kai Zhang
    • 1
    • 2
  • Yuan-Yuan Li
    • 1
    • 2
  • Zhen-Nan Yu
    • 1
  1. 1.School of GeosciencesChina University of PetroleumQingdaoChina
  2. 2.Laboratory for Marine Mineral ResourcesQingdao National Laboratory for Marine Science and TechnologyQingdaoChina

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