The Thistle platform which is located 125 miles of north east Shetland owned by EnQuest “initiated emergency response procedures” evacuating 115 workers.
The coastguard scrambled a helicopter and two rescue aircraft from the Norwegian offshore sector transferred the workers to other platforms across the area.
The coastguard were informed of the incident at the Thistle platform at 6:30pm on Monday evening.
An EnQuest spokeswoman said, “EnQuest can confirm it has proactively down-manned the Thistle Platform today in a precautionary move following a preliminary subsea structural inspection today.
“The platform has been safely shut down in accordance with planned procedures.
“EnQuest is liaising with all relevant authorities including the Maritime and Coastguard Agency.”