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Audit of follow-up of electrical systems on Yme

Audit: During 9-11 December 2008 the Petroleum Safety Authority Norway (PSA) conducted an audit of Talisman Energy Norge AS (TENAS) at the construction site in connection with the development of Yme. The audit followed up how TENAS safeguards and ensures compliance with requirements related to electrical systems.

About Yme
Yme is an oil field in the southeastern part of the North Sea, 110 km southwest of Egersund. The field has been in production before, but was shut down in 2001.

On 11 May 2007 the Government approved a new plan for development and operation of the Yme field. TENAS is the operator for the development. Yme belongs to Production License 316 where the licensees are Talisman Norge AS (70%), Revus Energy ASA (20%) and Pertra ASA (10%).

The production license was awarded to the present licensees in 2004. Yme is the first field on the Norwegian Shelf to be re-opened.

The Yme field will be developed with a jack-up production facility to be placed on a storage tank on the sea bed on the Yme Gamma prospect, with a subsea facility on Yme Beta, 12 km away. The sea depth in the area is between 77 and 93 metres.

The field is planned for operation in 2009.

Background for the audit
The PSA shall establish standards for and follow up to ensure that the players in the petroleum activities maintain a high standard for health, safety, environmental conditions and emergency preparedness, and through this also contribute to creating the greatest possible value for society.

The PSA shall also contribute to reducing the risk level in the petroleum activities by following up to ensure that the players facilitate technical and operational integrity, and follow up the interaction between man/technology/organization and HSE-critical systems.

Electrical systems constitute key parts of technical barriers on a facility, and ample safeguarding of these is important in order to maintain an acceptable risk level.

Purpose of the audit
The purpose of the audit was to contribute to and verify that TENAS plans, manages and executes its activities in accordance with the HSE regulatory requirements in an effective and focused manner.

Result of the audit
We identified three non-conformities in relation to the regulatory requirements. These were related to electrical installation, preservation and the use of cableways of a non-approved type.