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Technical Abstract

Simultaneous source separation using an annihilation filter approach

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Simultaneous shooting increases acquisition efficiency by activating more than one source at the same time. This introduces blending noise that typically needs to be removed before data processing. We present a new deblending algorithm based on iterative annihilation filtering. The strategy attenuates coherent energy using a modified sparse τ-p transform following which the remaining energy is re-aligned to form the deblended output. The method is tested on a numerically blended dataset using real short and long offset narrow azimuth data. The results show the residual blending noise to be ~25 dB down.
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Publications

EAGE - European Association of Geoscientists and Engineers

Authors

Jonas Rohnke, Gordon Poole

Month

May

Copyright

© 2016 EAGE