Leakage Does Not Stop at the CO2 Plume – Regional Pressure Implications on Potential Brine Leakage (DS)

Tracks
CCS
Wednesday, November 4, 2026
11:35 AM - 12:55 PM

Details

Bridging the gap between environmental stewardship and operational excellence, the challenge of formation fluid risks associated with legacy well integrity in the era of subsurface transition is of particular importance. As mature basins are repurposed, the movement of pressurised formation fluids, particularly brine, represents more than a monitoring or regulatory problem, they can be a threat to reservoir performance, to the environment and to drinking water resources and as such may pose a significant post-injection financial liability. The session aims to encompass a range of topics: - the mechanics of cross-zone communication (where degraded legacy barriers allow brine to migrate into hydrocarbon-bearing zones, or low-pressure sinks, or drinking water units) - actionable strategies for asset life-extension and proactive remediation (associated with new, improved downhole logging programmes and evaluations of geomechanical and geochemical failures can turn legacy seals into leakage pathways) - how legacy well leakage paths of least resistance can compromise the pressure containment of new CCS injection sites and what, if anything can be done to mitigate against the mitigation of brownfield infrastructure failure and subsequent external stakeholder fallout.


Speaker

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Ms Anabell Dennisse Blanco Pericana
REPSOL SA.

Numerical Simulation-Based Delineation of the Class VI Area of Review in Offshore Environments

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