At the end of field life, wells require permanent plugging and abandonment (P&A) as part of decommissioning activities. Some UK fields developed in the 1970’s are reaching their end of field life, with UK industry estimates predicting well P&A costs over the next 30-40 years of 24 billion dollars. As well as the high financial cost, there is a significant HSSE exposure to ensure safe and reliable P&A such that no escape of hydrocarbons is possible to the near surface environment.
Plugging and Abandonment of Oil and Gas Wells: A Geomechanics Perspective
Davison, J. M., Salehabadi, M., De Gennaro, S., Wilkinson, D., Hogg, H., Hunter, C., and P. Schutjens. "Plugging and Abandonment of Oil and Gas Wells: A Geomechanics Perspective." Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, San Francisco, California, USA, June 2017.
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