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Audit of the detail planning of Gjøa

During the period 13-15 June 2007 the Petroleum Safety Authority Norway (PSA) audited the detail planning of Gjøa. The audit was in connection with mooring analyses and maritime systems. The main impression from the audit was that the project is being carried out in a good manner.

About Gjøa
Gjøa was proven in 1989 and lies approx. 40 kilometres north of the Fram field. The reservoir contains gas over a relatively thin oil zone.

Statoil is the operator during the development phase, while Gaz de France will assume the operatorship when the field starts production. The development will include five seabed templates connected to a semisubmersible production and processing facility.

The oil will be exported in a new 55 kilometre long pipeline which will be connected to Troll Oil Pipe II, for further transportation to Mongstad.

The gas will be exported in a new 130 kilometre long pipeline to the FLAGS transportation system on the British Continental Shelf, for further transportation to St. Fergus. The PDO was submitted in December 2006.

Background for the audit
An audit in connection with collision risk within the disciplines of structures and maritime systems was carried out for Gjøa in 2006. During this audit, we wanted to approach the project on a wider basis, with the main emphasis on analyses and verification of construction analyses and maritime systems.

Purpose of the audit
The purpose of the audit activities was to ensure that Statoil has an established system for safeguarding quality related to structures and maritime systems, as well as to contribute to the analyses being prepared in accordance with the regulatory requirements.

Result of the audit
The main impression from the audit was that the project is being carried out in a good manner. However, three potential areas for improvement were identified, related to verification the mooring analyses, control in damaged condition and the scope of audit and verification plans.

Contact person in the Petroleum Safety Authority Norway:
Mike Theiss