STAVANGER, NORWAY: The Petroleum Safety Authority Norway (PSA) has investigated the hydrocarbon leak that occurred on StatoilHydro’s Oseberg C facility on Sept. 12, 2008, and has identified five nonconformities in relation to regulatory requirements, among other things.
‘The PSA said the leak, which occurred in connection with maintenance on a valve, is the largest gas leak to occur in process areas on the Norwegian shelf in recent years, second only to the Visund incident in January of 2006. The gas detection on Oseberg C triggered an automatic shutdown. Crew members without emergency response tasks mustered at the lifeboats. No one was injured in the incident, but there were four people present in the area of the incident.The underlying causes of the incident revealed in the investigation include inadequate risk assessments in connection with planning of the work, as well as deficient competence regarding the hydraulics system on the part of the personnel involved.