Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline
A novel approach to eliminate the onset of global buckling in pipelines is investigated in the paper. The method is based on pre-deforming a pipeline continuously with a specific wavelength and amplitude prior to installation on the seabed. The response of the pipeline to applied high temperature an...
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Online Access: | https://eprints.soton.ac.uk/422784/ https://eprints.soton.ac.uk/422784/1/14_Chee_et_al_2018_OMAE2018_77154.pdf |
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ftsouthampton:oai:eprints.soton.ac.uk:422784 2023-07-30T03:59:57+02:00 Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline Chee, Jayden Walker, Alastair White, David 2018-06 text https://eprints.soton.ac.uk/422784/ https://eprints.soton.ac.uk/422784/1/14_Chee_et_al_2018_OMAE2018_77154.pdf en English eng American Society Of Mechanical Engineers (ASME) https://eprints.soton.ac.uk/422784/1/14_Chee_et_al_2018_OMAE2018_77154.pdf Chee, Jayden, Walker, Alastair and White, David (2018) Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline. In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Pipelines, Risers, and Subsea Systems. vol. 5, American Society Of Mechanical Engineers (ASME). V005T04A044 . (doi:10.1115/OMAE2018-77154 <http://dx.doi.org/10.1115/OMAE2018-77154>). Conference or Workshop Item PeerReviewed 2018 ftsouthampton https://doi.org/10.1115/OMAE2018-77154 2023-07-09T22:24:04Z A novel approach to eliminate the onset of global buckling in pipelines is investigated in the paper. The method is based on pre-deforming a pipeline continuously with a specific wavelength and amplitude prior to installation on the seabed. The response of the pipeline to applied high temperature and pressure was studied in conjunction with variations in the lateral pipe-soil interaction (PSI) – both as uniform friction along the pipe and also with locally varying friction. Pipe and seabed parameters representing a typical wet-insulated infield flow line on soft clay are used. The pre-deformed pipeline has a higher buckle initiation temperature compared to a straight pipeline due to the reduced effective axial force build-up resulting from the low axial stiffness generated by the predeformed lobes along the pipeline. The results from this paper show that the strains in the predeformed pipeline are not significantly affected by the local variability of lateral PSI but rather by the global mean PSI. At a typical lateral soil resistance, i.e. a friction coefficient of 0.5, lateral buckling occurs at a very high temperature level that is not common in the subsea operation. At a very low friction, i.e. 0.1, lateral buckling occurs at a lower operating temperature but the strain is insignificant. The longitudinal strain of the pipeline is not highly sensitive to the lateral PSI, which is a quite different response to an initially straight pipeline. Therefore, this method could prove to be a valuable tool for the subsea industry as it enables the pipeline to be installed and operated safely at very high temperatures without the need for lateral buckling design and installation of expensive structures as buckle initiators. Even if the pre-deformed pipeline buckles at a very high temperature, during cycles of heat-up and cool-down the buckle shape ‘shakes down’ by geometric rearrangement to minimize the energy, and in doing so creates a series of ‘short pipelines’ in which the longitudinal strain is self-controlled. The ... Conference Object Arctic University of Southampton: e-Prints Soton Psi ENVELOPE(-63.000,-63.000,-64.300,-64.300) Volume 5: Pipelines, Risers, and Subsea Systems |
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University of Southampton: e-Prints Soton |
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ftsouthampton |
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English |
description |
A novel approach to eliminate the onset of global buckling in pipelines is investigated in the paper. The method is based on pre-deforming a pipeline continuously with a specific wavelength and amplitude prior to installation on the seabed. The response of the pipeline to applied high temperature and pressure was studied in conjunction with variations in the lateral pipe-soil interaction (PSI) – both as uniform friction along the pipe and also with locally varying friction. Pipe and seabed parameters representing a typical wet-insulated infield flow line on soft clay are used. The pre-deformed pipeline has a higher buckle initiation temperature compared to a straight pipeline due to the reduced effective axial force build-up resulting from the low axial stiffness generated by the predeformed lobes along the pipeline. The results from this paper show that the strains in the predeformed pipeline are not significantly affected by the local variability of lateral PSI but rather by the global mean PSI. At a typical lateral soil resistance, i.e. a friction coefficient of 0.5, lateral buckling occurs at a very high temperature level that is not common in the subsea operation. At a very low friction, i.e. 0.1, lateral buckling occurs at a lower operating temperature but the strain is insignificant. The longitudinal strain of the pipeline is not highly sensitive to the lateral PSI, which is a quite different response to an initially straight pipeline. Therefore, this method could prove to be a valuable tool for the subsea industry as it enables the pipeline to be installed and operated safely at very high temperatures without the need for lateral buckling design and installation of expensive structures as buckle initiators. Even if the pre-deformed pipeline buckles at a very high temperature, during cycles of heat-up and cool-down the buckle shape ‘shakes down’ by geometric rearrangement to minimize the energy, and in doing so creates a series of ‘short pipelines’ in which the longitudinal strain is self-controlled. The ... |
format |
Conference Object |
author |
Chee, Jayden Walker, Alastair White, David |
spellingShingle |
Chee, Jayden Walker, Alastair White, David Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
author_facet |
Chee, Jayden Walker, Alastair White, David |
author_sort |
Chee, Jayden |
title |
Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
title_short |
Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
title_full |
Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
title_fullStr |
Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
title_full_unstemmed |
Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
title_sort |
effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline |
publisher |
American Society Of Mechanical Engineers (ASME) |
publishDate |
2018 |
url |
https://eprints.soton.ac.uk/422784/ https://eprints.soton.ac.uk/422784/1/14_Chee_et_al_2018_OMAE2018_77154.pdf |
long_lat |
ENVELOPE(-63.000,-63.000,-64.300,-64.300) |
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Psi |
geographic_facet |
Psi |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://eprints.soton.ac.uk/422784/1/14_Chee_et_al_2018_OMAE2018_77154.pdf Chee, Jayden, Walker, Alastair and White, David (2018) Effect of lateral pipe-soil interaction on controlled lateral buckling using pre-deformed pipeline. In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Pipelines, Risers, and Subsea Systems. vol. 5, American Society Of Mechanical Engineers (ASME). V005T04A044 . (doi:10.1115/OMAE2018-77154 <http://dx.doi.org/10.1115/OMAE2018-77154>). |
op_doi |
https://doi.org/10.1115/OMAE2018-77154 |
container_title |
Volume 5: Pipelines, Risers, and Subsea Systems |
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1772810639170863104 |