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Audit of fabrication of the Oselvar field pipeline

On 17 August and 9-10 November 2010, the Petroleum Safety Authority Norway (PSA) conducted an audit of DONG E&P Norge AS (Dong) and the fabrication of the Oselvar field pipeline. The audit also included Technip Norge AS as responsible for the design of the pipeline and Evanton Spoolbase as responsible for assembling the pipeline.


The audit was carried out by means of a meeting with Dong, as well as verifications and interviews at Evanton Spoolbase in the UK. An interview with IKM Ocean Design AS’ project manager was held on 24 November 2010.

Background
The Oselvar field is located in the southern part of the North Sea, 21 kilometres southwest of Ula. The field is under development. The planned start of production is at the end of 2011.

The Oselvar pipeline, a pipe-in-pipe flowline, connects the seabed facility to the Ula field. Dong has entered into an EPCI contract with Technip Norge AS for the pipeline.

The PSA sets the standards and follows up to ensure that the players in the petroleum activity maintain high performance within health, safety and the environment, so that the risk of major accidents, undesirable incidents and work-related injury and illness is reduced. The PSA follows up the industry’s work to prevent undesirable incidents that could lead to acute spills.

Purpose
The purpose of the audit was to assess how Dong ensures that fabrication of the pipeline is being executed in accordance with requirements in the HSE regulations and recognised standards, as well as verifying the operator’s compliance with own requirements for qualification, production and preparation for operation.

The PSA also wanted to follow-up challenges identified in connection with the processing of the Plan for Development and Operation (PDO), as well as following up Dong’s compliance with the supervisory duty and management of suppliers to the project.

Results
The general impression is that the project is being managed well. Responsibilities and reporting routines between the parties appear to be well-established. The project implementation and delivery progress are, for the most part, according to plan. Preparations for the operations phase have begun and an appurtenant activity plan has been established.