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Abstract

Summary

Walkaway VSP data acquired over the Kapuni field provided a rich set of very high quality dual well geophone and DAS VSP data. A standard VSP pre-processing workflow was applied, followed by reverse time migration. In the DAS preprocessing we were faced with additional challenges; correct for differences in DAS channel spacing due to variations in optical properties of the various fibers and to compensate for the lack of broadside direct arrivals in the up/down deconvolution at large offsets. The final pre-processed DAS data has a larger vertical aperture than the geophone data resulting in a wider lateral image from a single well. Both the dual well geophone VSP and the single well DAS VSP images provide a good result with high vertical and lateral resolution in the objective area.

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/content/papers/10.3997/2214-4609.201412739
2015-06-01
2020-04-03
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References

  1. Morice, S., Moseley, S., Blundell, K., Clulow, B., Merry, H. and Roy, J.
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