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Audit of Transocean Searcher – follow-up of the drilling activities on Gjøa

Audit: From 23 April to 7 May 2009, the Petroleum Safety Authority Norway (PSA) carried out an audit of Transocean Offshore Ltd (Transocean) in connection with the drilling activities with Transocean Searcher on the Gjøa field. We identified eight non-conformities in relation to regulatory requirements and two improvement items.


The audit  was conducted with selected parts of Transocean's management system and how this is followed up by the onshore and offshore organisation.

Transocean Searcher

Transocean Searcher

The audit was conducted in the form of meetings and interviews with onshore staff and through verifications and interviews with personnel offshore.

Background for the audit
The background for the audit was the issuing of Acknowledgement of Compliance (AoC) to Transocean for the facility and StatoilHydro's consent for use of Transocean Searcher on the Gjøa field.
 
The consent is, inter alia, given based on documentation related  to the AoC for the facility, with the assumptions and obligations which the AoC constitutes for the drilling contractor.

Transocean has five facilities in operation on the Norwegian Shelf. These facilities are operated by separate operations organisations in Norway with joint the support functions from the Stavanger office. 

Purpose of the audit
The purpose of the audit was to verify that Transocean has followed up that regulatory requirements are complied with, including the use of risk assessments and safety-related procedures. Verifications within the following HSE-related aspects were carried out:

  • Staffing, competence and training
  • Own follow-up activities
  • Undesirable incidents
  • Equipment maintenance in drilling and well areas

Result of the audit
We identified eight non-conformities in relation to regulatory requirements and two improvement items.

The non-conformities are related to the following factors:

  • Updating and use of documentation related to Acknowledgement of Compliance (AoC)
  • Competence and training
  • Internal verifications and follow-up activities
  • Monitoring in the control room
  • Ventilation in the living quarters
  • Valves for bulk and drilling fluid systems
  • Monitoring of drilling fluid density
  • Fire detection in boiler room

Improvement items are related to

  • maintenance of equipment
  • marking and signposting