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Investigation following hydraulic oil discharge in the Barents Sea

The Petroleum Safety Authority Norway (PSA) and the Norwegian Pollution Control Authority (SFT) conducted a joint investigation of the hydraulic oil discharge from Eirik Raude on 12 April 2005. Subsequent to the incident, Statoil and Ocean Rig were ordered to implement measures to prevent such discharges. The companies were informed of our findings and of the conclusions of the investigation. We are satisfied with the measures that were implemented.


The Petroleum Safety Authority Norway (PSA) and the Norwegian Pollution Control Authority (SFT) conducted a joint investigation of the hydraulic oil discharge from Eirik Raude on 12 April 2005. Subsequent to the incident, Statoil and Ocean Rig were ordered to implement measures to prevent such discharges. The companies were informed of our findings and of the conclusions of the investigation. We are satisfied with the measures that were implemented.

The official and final report from the joint audit is now available. This is being published on completion - in line with PSA practice.

Link to the investigation report (in Norwegian).

Eirik RaudeThe cause of the accident was a leak from a hydraulic hose. The leak resulted in a discharge of approximately 1000 litres of hydraulic oil to sea. The hydraulic hose that sprung a leak is located under the facility and linked to the BOP carrier.

The PSA and SFT found it appropriate to carry out a joint investigation of the discharge. Simultaneously, Statoil and Ocean Rig carried out their own investigation of the incident.

The authorities' investigation uncovered two non-conformities from the requirements stipulated in the petroleum regulations, and eight observations with potential for improvement.

The non-conformities were related to the maintenance systems and routines on Eirik Raude. The BOP carrier where the leak occurred is defined as critical equipment. The maintenance system, however, specifies a different priority for work on the equipment. The system also allowed for corrective work orders to be submitted without a specified priority. These conditions have been rectified.

SFT's professional evaluation of the discharge indicates that there was no significant environmental impact as a result of the discharge.

Contact in the PSA:
Inger Anda
Press spokesperson
E-mail:
inger.anda@ptil.no
Telephone: + 47 970 54 064