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Audit of final documentation on structural integrity on Yme

Audit: On 25 and 26 June 2009, the Petroleum Safety Authority Norway (PSA) carried out an audit of Talisman Energy Norge AS (TENAS). The audit targeted the company’s final documentation in regards to structural integrity on the Yme facility. We identified two non-conformities in relation to the regulatory requirements.

The audit was carried out at the offices of SBM and GustoMSC in Rotterdam.

Background for the audit
The background for the audit is that the load-bearing structures on Yme are nearing completion, and that TENAS has applied for an Acknowledgement of Compliance (AoC) for the facility.

A previous audit of the load-bearing structures on Yme was carried out in May 2007 as well as an audit in connection with the fabrication of the legs.

During this audit, we focused on documentation related to parts of the structure which have not been audited previously.

Purpose of the audit
The purpose of the audit was to make sure the construction safety documentation was in compliance with the regulations. We reviewed the documentation for one leg, one tank in the hull, one tank in the oil storage facility, one riser and one jack-up system.

We focused on documentation from the fabrication phase, geo-technique, weights and compliance with the construction regulations of the Norwegian Maritime Directorate.

Result of the audit
We identified non-conformities in relation to the regulatory requirements in connection with insufficient documentation of compliance with the maritime regulations and a lack of first year inspection of load-bearing structures.


  • Compliance with the Norwegian Maritime Directorate’s capacity requirement for jack-ups and brakes in the jack-up system, DNV requirement   (D303) on oil-based protection of rubber pads, DNV requirement (D1101 item b) on control panels for jacks has not been documented.
  • There were no plans for  carrying out a condition inspection of the storage tank during the first year of use.

Furthermore we identified improvement items in connection with insufficient documentation of the construction phases.