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Audit of HSE management systems and working environment on Stena Dee

During the period 18-19 August 2004, the Petroleum Safety Authority Norway (PSA) carried out a supervisory activity aimed at selected parts of Stena Drilling Ltd's (Stena's) management system for following up health, environment and safety (HSE) aspects on the company's installations on the Norwegian shelf. Within the areas subjected to the audit, Stena largely appears to have appropriate management systems in place.



The activity was carried out at Stena's office in Aberdeen.

Background for the audit

The Stena Dee is a semi-submersible mobile drilling rig built in 1984 at Mitsubitshi Heavy Industries in Japan.

The rig has previously operated on the Norwegian shelf, but in recent years has either been active on the British shelf or laid up.

Stena has applied for an Acknowledgement of Compliance (AoC) for the rig. The company has a contract with ChevronTexaco for drilling of one well on the Norwegian shelf, with planned start-up in September 2004.

This audit is part of the PSA's consideration of Stena's AoC application.

Purpose of the audit

The objective of the activity was to verify that selected parts of Stena's HSE management system and working environment conditions on the Stena Dee conform with the applicable regulatory requirements.

The verification was carried out on the basis of interviews with Stena personnel and reviews of the company's governing documentation.

A verification of the company's activities was also conducted to follow up previously noted working environment issues on the Stena Dee.

Result of the audit

Within the areas subjected to the audit, Stena largely appears to have appropriate management systems in place. The personnel who were present during the activity demonstrated solid knowledge of the HSE management systems.

Some non-conformances with regulatory requirements were revealed during the audit activity. These deficiencies were in part linked to the company's procedures for investigating incidents, follow-up of work-related illnesses, safeguarding the responsibilities of the primary company role, and organization of a joint working environment committee on site.

Certain areas with a potential for improvement were also noted.

Otherwise, the PSA takes a positive view of the extensive improvement work initiated by Stena during the rig's stay at the yard in Rotterdam to rectify unfortunate working environment conditions highlighted by the PSA during its working environment verification on the Stena Dee in March 2004.

It is also our impression that the remaining surveys of the working environment that must be implemented when the rig is in normal operation will be carried out according to established plans.

Contact person in the Petroleum Safety Authority:
Mike Theiss