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Audit of engineering design of pipeline from Troll A to Kollsnes

Audit: The Petroleum Safety Authority Norway (PSA) has during the period 18-19 March 2009, conducted an audit of StatoilHydro's management of the engineering design of the P12 pipeline from Troll A to Kollsnes and of the supplier of the engineering design services (Reinertsen AS).


The audit was carried out at Reinertsen AS in Trondheim according to the following schedule:

  • Opening meeting with StatoilHydro and Reinertsen on Wednesday, 18 March with a presentation of the audit.
  • Meetings, conversations and verifications on Wednesday, 18 and Thursday, 19 March.
  • Summary meeting, Thursday, 19 March.

Background for the audit
The Petroleum Safety Authority Norway shall establish standards for and follow up to ensure that the players in the petroleum activities maintain a high standard for health, safety and the environment, so that the risk of major accidents, undesirable incidents and work-related injuries and illness is reduced.

A central priority for our HSE follow-up is to ensure that the players follow up the technical condition of the facilities. In this connection, good follow-up during the engineering design phase is important in order to identify potential weaknesses which may have consequences for the operations phase.

Furthermore, follow-up of the modification project and follow-up of risk management and risk handling are prioritized.

Some important factors for implementation of the project are

  • installation of pipeline parallel to existing pipelines in operation (P10 and P11, etc.) and hook-up to operating installations (Troll A and Kollsnes),
  • capacity and competence in-house and on the part of suppliers,
  • design optimization,
  • ensuring that engineering design, installation and operating experiences from P10 and P11 are utilized,
  • compliance with governing documents in-house and on the part of suppliers.

Purpose of the audit
The purpose of the audit was to check whether the engineering design was planned and implemented in accordance with current regulatory requirements and accepted standards.

We also wanted to verify how the operating company (StatoilHydro) follows up the engineering services provider (Reinertsen) with emphasis on how

  • StatoilHydro and Reinertsen define safety-critical elements of the project,
  • competence and quality on the part of the supplier and any subcontractors is followed up,
  • positive and negative experiences are utilized for learning and improvement.

Result of the audit
The audit was held at an early stage in the implementation of the project. Through the audit, we received information about the  project organizations of Reinertsen and StatoilHydro. Based on presentations and conversations, our impression was that there was potential for improvement with regard to the flow of information and knowledge of the project management system.

It is important that StatoilHydro has good follow-up routines, both internally and for its subcontractors. It is also important that central participants in the project are kept well-informed at an early stage, have good insight into the mangement system and quality plans and know what is to be delivered at different points in time.

A non-conformity relating to document handling in StatoilHydro was identified.

We have also identified five areas with potential for improvement. These areas are follow-up of quality plans, competance management, organisation chart, verification plan and presentation of job content.