CCS expert: Legacy wells among biggest long-term risks for offshore carbon storage projects
What happened
A CCS specialist warned that legacy wells are among the biggest long‑term risks for offshore carbon storage projects. The article explains that poor documentation, materials vulnerable to CO2, and wells not abandoned with CO2 containment in mind can become migration pathways, meaning some wells will need re‑entry, remediation, or conversion into monitoring assets; buyers should map wells to injection/plume models and prioritize interventions where the plume could reach casings
Why the category manager should care
Treat legacy‑well exposure as a contract and budget driver for CCS‑adjacent P&A work; mapping and standards reduce scope drift and surprise costs
Key facts
- More than 1,400 wells in UK CCS licence areas cited as a scale reference
- Not every legacy well needs intervention; technical analysis can prioritize candidates
- Converting wells into monitoring assets is a pragmatic option to reduce upfront re‑abandonmen