Installation Load Consideration in Ultra-Deepwater Pipeline Sizing
Publication: Journal of Transportation Engineering
Volume 131, Issue 8
Abstract
The design of ultra-deepwater offshore pipeline is often based on the wall thickness and material grade selection to resist the local buckling due to bending, axial tension, and external pressure. Typically, this load combination occurs at the sagbend region during pipeline installation. With the economics of ultra-deepwater pipeline systems being highly dependent on the installation considerations, it remains difficult to see how this design methodology with no reference to installation loads, can lead to an economical solution. By means of extensive numerical studies, over a range of pipe diameters and water depths, it is shown that installation parameters are sensitive to wall thickness and the level at which the maximum allowable bending strain is set. By appropriately combining pipe strength and stiffness characteristics with the pipelay installation parameters, a bending strain limit is defined that is shown to lead to the most economical solution.
Get full access to this article
View all available purchase options and get full access to this article.
References
American Petroleum Institute. (API). (2000). “Specification for line pipe.” API Specification 5L, 42nd Ed., Washington, D.C.
Dixon, D. A., and Rutledge, D. R. (1968). “Stiffened catenary calculations in pipeline laying problem.” ASME J. Eng. Ind., 90, 153–160.
Det Norske Veritas (DNV). (2000). “Submarine pipeline systems.” Offshore Standards OS F101, Veritasveien 1, N-1322 Hovik, Norway.
Langner, C. G. (1984). “Relationships for deepwater suspended pipe spans.” Proc., 3rd Int. Offshore Mechanics and Arctic Engineering Symp., New Orleans, ASME, Fairfield, N.J.
Ramberg, W., and Osgood, W. R. (1943). “Description of stress-strain curves by three parameters.” National Advisory Committee for Aeronautics (NACA) Technical Note No. 902, NACA, Washington, D.C.
Torselletti, E., Brusci, R., Vitali, L., and Marchesani, F. (1999). “Lay challenges in deep waters: Technologies and criteria.” Proc., 2nd Int. Deepwater Pipeline Technology, Clarion Technical Conf., New Orleans.
Williams, R., Williams, K., and Walker, A. (2002). “Load controlled or displacement controlled?” Proc. of Offshore Pipeline Technology Conf., IBC Energy Conference, Amsterdam, The Netherlands.
Information & Authors
Information
Published In
Copyright
© 2005 ASCE.
History
Received: Oct 2, 2003
Accepted: Dec 30, 2004
Published online: Aug 1, 2005
Published in print: Aug 2005
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.