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Audit of the installation of the Langeled pipeline

During the period 13.-15.9.2005, the Health & Safety Executive (HSE), United Kingdom (UK) and the Petroleum Safety Authority Norway (PSA), conducted a supervisory activity related to the laying of the Langeled pipeline by the laybarge LB200. The activity was executed as an audit combined with verifications.


LB200 (source: Stolt Offshore)

Background for the audit

Langeled is a new gas transportation system from Norway that will be installed in 2005 and 2006. The project comprises a 42'' pipeline from Nyhamna, Norway to the Sleipner field, and a 44'' pipeline from Sleipner to Easington of the UK. The total length of the pipeline system will be close to 1200 km.

HSE and PSA decided to follow up the installation of Langeled in the 2005 season through a joint supervisory activity.

Relevant petroleum legislation from UK and Norway were used as basis for the supervisory activity.

Purpose of the audit

The purpose of the audit was to verify that a management system is in place for the installation of the Langeled pipeline. Furthermore, we wanted to check the documentation and relevant processes to verify that regulations and standards are adhered to.

Result of the audit

Our main opinion is that the project has established and implemented an appropriate management system for installation of the pipeline.

No deviation was identified, but we have noted 9 observations where we can see potential for improvement.

The observations concern welding repair rate, production testing, welding documentation, loads on stinger, experience transfer, pipe tracking system, site query, organisation and one internal project verification report.

External link: Information about Langeled gas export

Contact in the PSA:
Mike Theiss