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Modifications of the PSA Regulations Based on Case Studies of Stability Accidents

[+] Author Affiliations
Arne Kvitrud

Petroleum Safety Authority Norway (PSA), Stavanger, Norway

Paper No. OMAE2013-10041, pp. V001T01A005; 10 pages
  • ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology
  • Nantes, France, June 9–14, 2013
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-5531-7
  • Copyright © 2013 by ASME


The paper describes available information about eight accidents worldwide related to the stability of petroleum units since 2000. A further seven stability incidents in Norway during the same period are also described. These accidents and incidents are used as cases for an evaluation of the existing Norwegian regulations on the stability of floating offshore petroleum units.

The accidents and incidents are grouped in categories based on the causes, and examples are given for each group.

The paper describes which Norwegian requirements could have prevented the accidents if they are complied with. Most of the accidents have involved deviations from the Norwegian regulations. Compliance with Norwegian regulations and (high-level) standards would cover most of the accident scenarios. However, some changes in the regulations have been found necessary. The paper describes these amendments, and the reasoning behind them.

Copyright © 2013 by ASME



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