We present a new target-enclosing full-waveform inversion method based on a new objective function. This objective function is based on the mismatch between wavefields reconstructed in the target domain with the convolution and correlation representation formulas, using data from the boundary of the target domain. The proposed method requires only kinematic knowledge of the subsurface model, particularly the overburden for redatuming, and no reconstruction of the model outside of the target area. In this sense it is truly local. We show a synthetic example with exactly redatumed wavefields and compare it with conventional FWI of surface data. The potential of the proposed method is demonstrated both in terms of the quality of target recovery and reduction in computational cost.
|Original language||English (US)|
|Title of host publication||Second EAGE Conference on Seismic Inversion|
|Publisher||European Association of Geoscientists & Engineers|
|State||Published - 2022|
Bibliographical noteKAUST Repository Item: Exported on 2022-01-19
Acknowledgements: The authors thank King Abdullah University of Science and Technology (KAUST) for funding this work. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia.