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TECHNICAL PAPERS

Challenges in Requalification and Rehabilitation of Offshore Platforms—On the Experience and Developments of a Norwegian Operator

[+] Author and Article Information
Ove T. Gudmestad

Statoil, Den norske stats oljeselskap a.a., N-4035 Stavanger, NorwayProfessor of Marine Technology, Stavanger University College, Stavanger, Norway e-mail: OTG@statoil.no

J. Offshore Mech. Arct. Eng 122(1), 3-6 (Nov 09, 1999) (4 pages) doi:10.1115/1.533725 History: Received July 15, 1999; Revised November 09, 1999
Copyright © 2000 by ASME
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References

Perreau, M. E., 1993, “Jernieh Gas Project Challenges and Implementation Performance,” Proceedings, Asia Pacific Oil & Gas Conference Soc. of Petroleum Engineers, Singapore, pp. 13–48.
Jakobsen, B., 1992, “The Loss of the Sleipner A Platform,” Proceedings, Second International Offshore and Polar Engineering Conference, (ISOPE), San Fransisco, CA.
American Petroleum Institute (API), 1995, “Proposed Revisions to RP 2A-WSD Recommended Practice for Planning, Designing and Constructing Fixed offshore Platforms—Assessment of Existing Platforms, Draft Section 17,” Dallas, TX, Nov.
Dunlap, W. A., and Ibbs, W. C., 1993, Proceedings of International Workshop on “Assessment and Requalification of Offshore Production Structures,” New Orleans, LA, Dec.
Efthymiou, M., van de Graaf, J. W., and Tromans, P. S., 1996, “Reliability-Based Criteria for Fixed Steel Offshore Platforms,” Proceedings 15th Offshore Mechanics and Arctic Engineering Conference (OMAE) Vol I-A, pp. 129–141. 1 June, Florence Italy.
Norwegian Petroleum Directorate (NPD), 1995, “Acts, Regulations and Provisions for the Petroleum Activity,” Stavanger, Norway
Arney, C. E., 1998, “Reliability and Risk Considerations in Offshore Design and Operations,” Ocean Waves Kinematics, Dynamics and Loads on Structures, Zhang, J., ed., ASCE, Reston, VA, May, pp. 265–272.
Rettedal, W. K., and Gudmestad, O. T., 1995, “Acceptance Criteria for Risk in Offshore Construction Projects,” Proceedings, Offshore Mechanics and Arctic Engineering, Copenhagen, Denmark, OMAE Vol. I-B, pp. 67–75.
Comité Européan de Normalization (CEN), 1994–1998, “Eurocode 8—Design provisions for earthquake resistance of structures,” ENV 1998, Bruxelles, Belgium.
Dalane, J. I., and Haver, S., 1995, “Requalification of an Unmanned Jacket Structure Using Reliability Methods,” Proceedings, Offshore Technology Conference, OTC 7756, Houston, TX, May.
Bea, R. G., Suhayda, R., Jin, Z., and Ramos, R., 1998, “Hurricane Wave Conditions for Design and Requalification of Platforms in the Bay of Campeche, Mexico,” Ocean Wave Kinematics, Dynamics and Loads on Structures, Zhang, J., ed., ASCE, Reston, VA, May, pp. 257–264.

Figures

Grahic Jump Location
Suggested acceptance criteria for platform structure at different safety levels (consequence classes)—A-manned platform; B-unmanned platform, high consequence of loss; C-unmanned platform, low consequence of loss; D-closed-down platform (e.g., ready for removal)
Grahic Jump Location
Technique for jacking Ekofisk jackets

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