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Abstract

Summary

This study investigates the potential of utilizing existing well infrastructure in marine CSEM for efficient CO2 storage monitoring, focusing on detecting and characterizing deep CO2 plumes, with applications to Aurora and Smeaheia storage sites. Analysing EM signals from well casings excited by a seafloor dipole, we use FEM simulations to assess the sensitivity of seafloor-measured E-fields to variations in plume geometry and depth. Results reveal a complex interplay between EM fields, CO2 distribution, formation layers, and plume depth, demonstrating that seafloor signals contain valuable information about subsurface CO2 spatial distribution and vertical extent. This method offers a promising approach for enhanced CCS monitoring.

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/content/papers/10.3997/2214-4609.2025101440
2025-06-02
2026-02-08
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References

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