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A Case Study of High Pressure/High Temperature Pipeline for Ice Scour Design Using 3D Continuum Modeling

[+] Author Affiliations
Abdelfettah Fredj, George Comfort, Aaron Dinovitzer

BMT Fleet Technology, Kanata, Ontario, Canada

Paper No. OMAE2008-57702, pp. 563-572; 10 pages
doi:10.1115/OMAE2008-57702
From:
  • ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
  • Volume 3: Pipeline and Riser Technology; Ocean Space Utilization
  • Estoril, Portugal, June 15–20, 2008
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 978-0-7918-4820-3 | eISBN: 0-7918-3821-8
  • Copyright © 2008 by ASME

abstract

Offshore pipelines in ice environments are increasingly required to operate at higher pressure and temperature conditions. These offshore pipelines can be subjected to stress and strains resulting from loading condition and ice scour created in the area. This paper describes a study performed to investigate the mechanical behavior of High Pressure/High Temperature (HP/HT) pipelines to withstand ice scouring events. A parametric study was completed to define the governing parameters for HP/HT pipeline design. This study was based on 3D continuum modeling with an ALE (Arbitrary Lagrangian Eulerian) formulation that was developed and run using LS-DYNA. The model incorporated large deformation theory, non-linear pipe-soil interaction and non-linear pipe material behavior to define ice interaction induced pipe deformations.

Copyright © 2008 by ASME

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