Robust wave-equation surface-wave skeletonized inversion for near-surface environments
Type
Conference PaperKAUST Department
Physical Science and Engineering (PSE) DivisionEarth Science and Engineering Program
Date
2020-04-03Permanent link to this record
http://hdl.handle.net/10754/667475
Metadata
Show full item recordAbstract
A robust imaging technology is reviewed that provide subsurface information in near-surface environments: wave-equation skeletonized inversion of surface waves for the S-velocity model and quality factor (Qs) structure. We demonstrate the benefits and liabilities of the method with synthetic seismograms and field data. The benefit of skeletonized inversion method is that it has higher resolution than the conventional 1D method and mostly avoids getting stuck in local minima. The synthetic and field data examples demonstrate that it is a robust method so that the complex near-surface structure can be reliably obtained with seismic surveys over near-surface environment. It is easily extended to anisotropic media or rugged topography seismic survey. The liability is that is almost as expensive as full-waveform inversion (FWI) and the resolution almost lower than FWI method.Citation
Li*, J., Zeng, Z., & Schuster, G. (2020). Robust wave-equation surface-wave skeletonized inversion for near-surface environments. Fifth International Conference on Engineering Geophysics (ICEG). doi:10.1190/iceg2019-035.1Sponsors
We thank the financial support from the sponsors of the Consortium of Subsurface Imaging and Fluid Modeling (CSIM). We thank KAUST for funding this research. This work is supported by the Natural Science Foundation of China (41874134) and the China Postdoctoral Science Foundation 2106T902503 and 2015M571366.Publisher
Society of Exploration GeophysicistsConference/Event name
Fifth International Conference on Engineering GeophysicsAdditional Links
https://library.seg.org/doi/10.1190/iceg2019-035.1ae974a485f413a2113503eed53cd6c53
10.1190/iceg2019-035.1