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Abstract

Summary

We consider the effect of metal infrastructure on marine 3D CSEM and the challenge from such responses in imaging. This is an issue for deployment of 3D CSEM in mature areas and for time-lapse production monitoring. We discuss the physical interaction between the imposed CSEM field and metallic structures. In a 3D CSEM inversion without special handling of the infrastructure responses, we demonstrate how the imaging artefacts complicate interpretation of the geology. Our data masking strategy shows how artefacts from a pipeline are effectively suppressed in a field data 3D inversion result. The modeling and imaging issues for metal well casing and metal pipelines are related, so our methodology applies in both cases.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201700846
2017-06-12
2024-04-20

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References

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3D CSEM Inversion Of Data Affected by Infrastructure
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201700846
/content/papers/10.3997/2214-4609.201700846
/content/papers/10.3997/2214-4609.201700846
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