Effect of initial Out-of-Straightness (OOS) on predeformed pipeline for controlling lateral buckling
Effect of initial Out-of-Straightness (OOS) on predeformed pipeline for controlling lateral buckling
A novel method of controlling lateral buckling, which involves pre-deforming a pipeline continuously into specific wavelength and amplitude prior to installation on the seabed, is reported in this paper. This paper first introduces the concept of pre-deforming pipe and then presents the results of FE analysis of different initial pre-deformation shapes that can influence the buckling behaviour of this pipeline system. Several random distributions of out-of-straightness are applied along the predeformed pipeline to investigate the sensitivity of the system to one of the largest uncertainty factors in pipeline designs – the exact as-laid configuration. Results show that with suitable selection of an initial pre-deformed shape and dimension, the system will only buckle at temperature and pressure levels that are unrealistically high for currently developed gas fields. It is found that both the buckle initiation load and the longitudinal strain are not sensitive to the inherent distribution of OOS. This makes a continuously pre-deformed pipeline a reliable, robust and safe lateral buckling management system.
Chee, Jayden
8c2766e4-6ec5-45ea-8c9b-25b758f9aad0
Walker, Alastair
213f8012-8f78-4f29-b366-866df23e47e0
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
27 February 2018
Chee, Jayden
8c2766e4-6ec5-45ea-8c9b-25b758f9aad0
Walker, Alastair
213f8012-8f78-4f29-b366-866df23e47e0
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Chee, Jayden, Walker, Alastair and White, David
(2018)
Effect of initial Out-of-Straightness (OOS) on predeformed pipeline for controlling lateral buckling.
41st Annual Offshore Pipeline Technology Conference, , Amsterdam, Netherlands.
27 Feb - 01 Mar 2018.
Record type:
Conference or Workshop Item
(Paper)
Abstract
A novel method of controlling lateral buckling, which involves pre-deforming a pipeline continuously into specific wavelength and amplitude prior to installation on the seabed, is reported in this paper. This paper first introduces the concept of pre-deforming pipe and then presents the results of FE analysis of different initial pre-deformation shapes that can influence the buckling behaviour of this pipeline system. Several random distributions of out-of-straightness are applied along the predeformed pipeline to investigate the sensitivity of the system to one of the largest uncertainty factors in pipeline designs – the exact as-laid configuration. Results show that with suitable selection of an initial pre-deformed shape and dimension, the system will only buckle at temperature and pressure levels that are unrealistically high for currently developed gas fields. It is found that both the buckle initiation load and the longitudinal strain are not sensitive to the inherent distribution of OOS. This makes a continuously pre-deformed pipeline a reliable, robust and safe lateral buckling management system.
Text
19 Chee et al 2018 Effect of OOS on Pre-Deformed Pipeline for Controlling Lateral Buckling
Restricted to Repository staff only
Request a copy
More information
Accepted/In Press date: 6 February 2018
Published date: 27 February 2018
Venue - Dates:
41st Annual Offshore Pipeline Technology Conference, , Amsterdam, Netherlands, 2018-02-27 - 2018-03-01
Identifiers
Local EPrints ID: 423072
URI: http://eprints.soton.ac.uk/id/eprint/423072
PURE UUID: e02f0da5-d952-43cc-ac1a-c6120658444a
Catalogue record
Date deposited: 13 Aug 2018 16:31
Last modified: 16 Mar 2024 04:32
Export record
Contributors
Author:
Jayden Chee
Author:
Alastair Walker
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
