Improved stability design of subsea pipelines on mobile seabeds: Learnings for the STABLEpipe JIP
Improved stability design of subsea pipelines on mobile seabeds: Learnings for the STABLEpipe JIP
The on-bottom stability design of subsea pipelines is important to ensure safety and reliability but is challenging to achieve, particularly in Australia due to onerous metocean and seabed conditions, and the prevalence of light gas pipelines. This challenge has been amplified by the fact that industry design guidelines have given no guidance on how to incorporate the potential benefits of seabed mobility, which can lead to lowering and self-burial of the pipeline on a sandy seabed. In this paper, we review the learnings of the STABLEpipe Joint Industry Project (JIP), which was initiated with the aim of developing new
design guidelines to assess the on-bottom stability of pipelines on mobile seabeds. The paper summarises the new research undertaken within the STABLEpipe JIP to better predict
sedimentation and scour, pipe-fluid interaction and pipe-soil interaction. New design methods to assess the on-bottom stability are also outlined, which have been developed based on
the new research. These methods have been adopted in a DNVGL guideline authored by the JIP researchers in collaboration with DNVGL and presently available for use by the JIP participants. Finally, applications of the STABLEpipe JIP outcomes and focus areas for further work are discussed
V005T04A046
The American Society of Mechanical Engineers
Griffiths, Terry
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Draper, Scott
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White, David
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Cheng, Liang
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An, Hongwei
53542f2c-e294-4e26-a581-344e646c72e6
Fogliani, Antonino
10bd8e2f-fda7-4f3b-94af-93047361164f
June 2018
Griffiths, Terry
fa0ba522-924b-44e7-b5a3-b430cf495a3e
Draper, Scott
efe46b7d-3989-403b-8b19-0b17dd54194f
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Cheng, Liang
3e5c1edf-17d3-4f54-9130-995bc16dd880
An, Hongwei
53542f2c-e294-4e26-a581-344e646c72e6
Fogliani, Antonino
10bd8e2f-fda7-4f3b-94af-93047361164f
Griffiths, Terry, Draper, Scott, White, David, Cheng, Liang, An, Hongwei and Fogliani, Antonino
(2018)
Improved stability design of subsea pipelines on mobile seabeds: Learnings for the STABLEpipe JIP.
In Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering: Volume 5: Pipelines, Risers, and Subsea Systems.
vol. 5,
The American Society of Mechanical Engineers.
.
(doi:10.1115/OMAE2018-77217).
Record type:
Conference or Workshop Item
(Paper)
Abstract
The on-bottom stability design of subsea pipelines is important to ensure safety and reliability but is challenging to achieve, particularly in Australia due to onerous metocean and seabed conditions, and the prevalence of light gas pipelines. This challenge has been amplified by the fact that industry design guidelines have given no guidance on how to incorporate the potential benefits of seabed mobility, which can lead to lowering and self-burial of the pipeline on a sandy seabed. In this paper, we review the learnings of the STABLEpipe Joint Industry Project (JIP), which was initiated with the aim of developing new
design guidelines to assess the on-bottom stability of pipelines on mobile seabeds. The paper summarises the new research undertaken within the STABLEpipe JIP to better predict
sedimentation and scour, pipe-fluid interaction and pipe-soil interaction. New design methods to assess the on-bottom stability are also outlined, which have been developed based on
the new research. These methods have been adopted in a DNVGL guideline authored by the JIP researchers in collaboration with DNVGL and presently available for use by the JIP participants. Finally, applications of the STABLEpipe JIP outcomes and focus areas for further work are discussed
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Accepted/In Press date: 7 May 2018
Published date: June 2018
Venue - Dates:
ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018, , Madrid, Spain, 2018-06-17 - 2018-06-22
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Local EPrints ID: 422788
URI: http://eprints.soton.ac.uk/id/eprint/422788
PURE UUID: 5c650166-70ff-40db-8b28-191c60751657
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Date deposited: 06 Aug 2018 16:30
Last modified: 16 Mar 2024 04:32
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Author:
Terry Griffiths
Author:
Scott Draper
Author:
Liang Cheng
Author:
Hongwei An
Author:
Antonino Fogliani
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