Near-surface normal faults can sometimes separate two distinct zones of velocity heterogeneity, where the medium on one side of the fault has a faster velocity than on the other side. Therefore, the slope of surface-wave arrivals in a common-shot gather should abruptly change near the surface projection of the fault. We present ray-map imaging method that migrates transmitted surface waves to the fault plane, and therefore it roughly estimates the orientation, depth, and location of the near-surface fault. The main benefits of this method are that it is computationally inexpensive and robust in the presence of noise.
|Original language||English (US)|
|Number of pages||1|
|State||Published - Aug 25 2016|
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We thank the 2016 sponsors of Center for Subsurface Imaging and Fluid Modeling (CSIM) at King Abdullah University of Science and Technology (KAUST) for their support.