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Abstract

Summary

For isotropic media, a P- or S-wave source can be easily implemented by adding a disturbance (wavelet) on its related stress components. However, it does not work for anisotropic media. Inspired by the idea of elastic wave mode decoupling, we propose a general approach to numerically simulate the pure wave source for elastic wave propagation. This is achieved by calculating the spatial counterpart of the normalized polarization for the given mode in the anisotropic media where the actual source is triggered. This approach may be helpful for seismic imaging, waveform inversion and micro-seismic monitoring when the source locates in an anisotropic rock, such as gas shale. Synthetic examples demonstrate the feasibility and application to elastic reverse time migration in a VTI medium.

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/content/papers/10.3997/2214-4609.201412834
2015-06-01
2024-04-20

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201412834
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Numerical Pure Wave Source Implementation and Its Application to Elastic Reverse Time Migration in Anisotropic Media
Conference Proceedings 2015, 1 (2015); https://doi.org/10.3997/2214-4609.201412834
/content/papers/10.3997/2214-4609.201412834
/content/papers/10.3997/2214-4609.201412834
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