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Optimized Global Sizing Approach for Gulf of Mexico Production Semisubmersible

[+] Author Affiliations
Neil Williams

Wison Offshore & Marine (USA) Inc., Houston, TX

Paper No. OMAE2012-83114, pp. 107-112; 6 pages
  • ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 1: Offshore Technology
  • Rio de Janeiro, Brazil, July 1–6, 2012
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4488-5
  • Copyright © 2012 by ASME


A deep draft production semisubmersible together with steel catenary risers (SCRs) provides a cost-effective wet-tree solution for the deepwater Gulf of Mexico. The major challenge in determining an appropriate hull configuration for the semisubmersible is ensuring acceptable performance of the SCR system, both in terms of strength and fatigue. This paper presents a hull and mooring configuration sizing methodology for a production semisubmersible that results in the system being an optimized riser support platform. The methodology is illustrated through an example Gulf of Mexico deepwater application.

Copyright © 2012 by ASME



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