A jack-up rig owned by Maersk Drilling, Maersk Invincible is currently working for Aker BP on the Valhall field in the Norwegian North Sea.
The incident occurred in the drilling module. Two swell packer stands came loose from the fingerboard, slide from one side of the derrick to the other and ended up in a gangway.
Each of the stands, made up from lengths of drill pipe, is specified as weighing a tonne.
No personal injuries have been reported as a result of the incident.
A PSA team is now travelling out to the rig in order to conduct the investigation.
Objectives of this work include clarifying the course of events, describing the actual and potential consequences, and identifying the direct and underlying causes in order to contribute to learning lessons and experience transfer.
The investigation will result in a report which will be published on psa.no.
Øyvind Midttun, press contact
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