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Audit of HSE management on Stena Dee

During the period 26-28 October 2005, the Petroleum Safety Authority Norway (PSA) conducted an audit of Stena Drilling AS (Stena) in connection with the drilling activity carried out by the Stena Dee on the Troll field. The audit targeted the Stena management system and technical and operational conditions on the facility.


The audit was conducted in the form of meetings and interviews with onshore and offshore personnel and through verifications in selected areas on the facility.

Background for the audit

Stena Dee (kilde: Stena)The background for the audit is the issuance of an (AoC) to Stena Drilling Ltd on 9 December 2004 for the Stena Dee (photo) and Norsk Hydro's consent for use of Stena Dee on the Troll field.

Consent is granted on the basis of factors including documentation related to the AoC for the facility, with the conditions and obligations the Acknowledgment of Compliance represents for the drilling contractor.

Stena has two facilities (Stena Don and Stena Dee) in operation on the Norwegian Shelf. These facilities are run and managed by dedicated operations organizations in Norway with joint support functions from the company's organization in Bergen and from the headquarters in Aberdeen.

Previously this year, we have met with Stena in Aberdeen where representatives from both management and the employees participated. The purpose of this meeting was to review experiences gained from the AoC process for Stena Dee.

Another objective was to obtain information on how Stena involves the headquarters in Aberdeen and the operations divisions in Norway as regards follow-up of HSE-related conditions on the facilities. Information from this meeting was used as basis for this audit activity on the Stena Dee.

Purpose of the audit

The purpose of the audit was to verify that Stena safeguards the requirements for HSE management in connection with the Stena Dee's drilling activity on the Troll field.

This includes follow-up of general terms in the AoC, follow-up of incidents, technical condition/maintenance, internal audits, system for handling deviations/exceptions as well as how the company safeguards its responsibility as main enterprise, as well as the requirements for competence and training.

Result of the audit

In relation to previous verifications, the PSA noted clear improvements with regard to the general technical condition of the facility. At the same time, we noted that certain expected measures had not been implemented as planned.

The audit has revealed nonconformities in relation to regulatory requirements for competence and training. The company's requirements for internal training on the platform were not implemented as planned for all personnel.

In addition, we noted a lack of certificates and implementation of courses for individuals related to the requirements of each position. Furthermore, we noted nonconformities related to the company's internal handling and follow-up/closing of nonconformities, follow-up of working environment conditions, transfer of experience and improvement as well as factors related to installation of a new welding shop and shop container for the hydraulic engineer.

We identified potential for improvement in areas including the following:

  • Establishment and follow-up of the company's HSE activity plan for 2005.
  • Job descriptions and use of procedures.
  • Maintenance management.

Contact in the PSA:
Mike Theiss