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Numerical Analysis for Pipeline Installation by S-Lay Method

[+] Author Affiliations
Li-Zhong Wang, Feng Yuan, Zhen Guo

Zhejiang University, Hangzhou, China

Paper No. OMAE2010-20552, pp. 591-599; 9 pages
doi:10.1115/OMAE2010-20552
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

S-lay method is widely used in pipeline installation from shallow water to deep water for decades. However, previous researches on S-lay method are not so complete because they are based on some assumptions, such as calm water and rigid seabed, which make the results deviate from precision. In this paper, a novel numerical model for analyzing pipelines in the S-lay problem is proposed to investigate the overall configuration, internal forces and strain of the pipeline taking into account the influence of ocean currents and seabed stiffness. Such a model is of great advantage because it can properly consider many influential factors in the real situation, including the variation position of the liftoff point, the change of stinger radius, the influence of ocean currents, seabed stiffness and the strain of the pipeline. Moreover, the solution process of this model is easy and not time consuming, so it is suitable for engineering application.

Copyright © 2010 by ASME

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