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Steel Catenary Riser Dynamic Analysis for Deepwater Applications in South China Sea

[+] Author Affiliations
Jinbao Lin, Dongbao Wang, Tao Qi

RICHTECH International Engineering (Shanghai) Co., Ltd., Shanghai, China

Paper No. OMAE2010-20256, pp. 287-292; 6 pages
doi:10.1115/OMAE2010-20256
From:
  • ASME 2010 29th International Conference on Ocean, Offshore and Arctic Engineering
  • 29th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5, Parts A and B
  • Shanghai, China, June 6–11, 2010
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4913-2 | eISBN: 978-0-7918-3873-0
  • Copyright © 2010 by ASME

abstract

This paper first describes the functional requirements of the Steel Catenary Risers (SCRs) for the deepwater applications in South China Sea. Spar is assumed to be the floating platform for the study in this paper. SCR wall thickness is preliminarily selected according to the industry codes. Dynamic strength analysis is preformed to verify the riser wall thickness. Fatigue analysis is then carried out to evaluate fatigue strength for the riser. The fatigue analysis covers different sources such as wave motion, ambient current, and Spar Vortex-Induced Motion (VIM). The metocean data in South China Sea are used for the vessel global motion generation. The current data are used for computing the riser fatigue caused by Vortex-Induced Vibration (VIV). Total fatigue damage for the risers is evaluated. Conclusions are finally drawn from the work in this paper.

Copyright © 2010 by ASME

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