We present a methodology to invert seismic data for a localised area by combining source-side wavefield injection and receiver-side extrapolation method. Despite the high resolving power of seismic full waveform inversion (FWI), the computational cost for practical scale elastic FWI remains a heavy burden. This can be much more severe for time-lapse surveys, which require real-time seismic imaging on a daily or weekly basis. Besides, structure changes during time-lapse surveys are likely to occur in a small area rather than the whole region, such as oil reservoir. We thus propose an approach that allows to image effectively the localised structure changes far deep from both source and receiver arrays. We perform both forward and back propagation only inside the target region. We present 2D elastic numerical examples of the proposed method and quantitatively evaluate the inversion errors, in comparison to those of conventional full-model inversions. The results show that the proposed localised waveform inversion is not only efficient and robust but also accurate even under the existence of errors in baseline models. Besides, the proposed strategy has the potentiality in determining highresolution imaging of reservoir by inverting higher frequencies (above 30 Hz) at relatively low computational cost.


Article metrics loading...

Loading full text...

Full text loading...


  1. Borisov, D., Singh, S.C. and Fuji, N.
    [2015] An efficient method of 3-D elastic full waveform inversion using a finite-difference injection method for time-lapse imaging. Geophysical Journal International, 202(3), 1908–1922.
    [Google Scholar]
  2. Robertsson, J.O. and Chapman, C.H.
    [2000] An efficient method for calculating finite-difference seismograms after model alterations. Geophysics, 65(3), 907–918.
    [Google Scholar]
  3. Virieux, J. and Operto, S.
    [2009] An overview of full-waveform inversion in exploration geophysics. Geophysics, 74(6), WCC1–WCC26.
    [Google Scholar]
  4. Wapenaar, K. and Fokkema, J.
    [2006] Green’s function representations for seismic interferometry. Geophysics, 71(4), SI33–SI46.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error