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Experimental Study on a Self Standing Hybrid Riser System Throughout Tests on a Deep-Sea Model Basin

[+] Author Affiliations
Paulo S. D. Pereira

Petrobras, Rio de Janeiro, RJ, Brazil

Katsuya Maeda, Kenkichi Tamura, Kazuaki Itoh

National Maritime Research Institute, Tokyo, Japan

Celso K. Morooka

State University of Campinas, Campinas, SP, Brazil

Paper No. OMAE2005-67558, pp. 1073-1079; 7 pages
doi:10.1115/OMAE2005-67558
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 1, Parts A and B
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4195-2 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

The present paper introduces a concept of a hybrid riser, Self Standing Hybrid Riser (SSHR), particularly in development for ultra deepwater around 3000 meters. Main problems faced in the initial definitions for design of such risers in the described scenario are discussed. Unique laboratory test with reduced model carried out in waves, current and riser top oscillation experiments in a very deepwater wave tank is shown. And, experimental results are shown and discussed, especially considering difficulties faced to carry out this experiment. Discussions are addressed in terms of vortex induced vibration (VIV) around buoyancy can, riser line pipe and flexible jumper.

Copyright © 2005 by ASME

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