Моделирование и инверсия анизотропного неупругого полного сейсмического волнового пакета: применение к данным непродольного ВСП в Северном море

Cergy-Pontoise University ,C Barnes,Skolkovo Institute Of Science And Technology ,M Charara

doi:10.18599/grs.2018.3.149-153

Cergy-Pontoise University , C Barnes + Show 2 more

Open Access

https://doi.org/10.18599/grs.2018.3.149-153

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Abstract

Highlights

Anisotropy is often observed due to the thin layering or aligned micro-structures, like small fractures. This type of anisotropy can be described by vertical (VTI) and horizontal transverse isotropy (HTI) when, respectively, layering is horizontal and the cracks are vertical
The elastic approximation of Earth properties for seismic wave propagation is limited as waves undergo attenuation and dispersion that can be described by a quasi constant quality factor over the seismic bandwidth
If the redundancy in the seismic surface data allows us to neglect many wave phases in the seismograms such as P to S wave conversions, the scarcity of data in borehole seismic, especially for offset VSP (OVSP), challenges us to interpret the full content of the seismograms

Summary

Introduction

Anisotropy is often observed due to the thin layering or aligned micro-structures, like small fractures. Anisotropic anelastic seismic full waveform modeling and inversion: Application to North Sea offset VSP data. Anelastic and anisotropic parameters need to be taken into account for a consistent seismic full waveform inverse problem.

Results

Conclusion