Research on the dynamic response of a steel catenary riser in the touchdown zone under pigging conditions

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dc.contributor.authorZhu, Xiaoxiao
dc.contributor.authorFu, Yunlei
dc.contributor.authorWang, Yutao
dc.contributor.authorWang, Lulu
dc.contributor.authorLao, Liyun
dc.date.accessioned2023-08-24T10:18:58Z
dc.date.available2023-08-24T10:18:58Z
dc.date.issued2023-08-06
dc.description.abstractA periodic pigging operation performed to clean off sediment and provide operators with detailed health information for a pipeline is mandatorily required. The research on pigging-induced issues for the steel catenary riser (SCR), one of the key parts in offshore hydrocarbon recovery pipelines between the floating production system and the seabed, has been scarce until now. As a result, there is an urgent need for theories to guide the pigging operation to ensure safe pigging is achieved in deepwater risers. In this paper, a study aiming to determine the effects of the pigging impact load and the pigging-induced slugging load on the dynamic response of the riser is reported. A SCR pigging model was established and proposed based on the finite element analysis (FEA) method. The stress distribution and displacement of the SCR were investigated under the pigging conditions, with the consideration of the effects of waves, currents, and floating platform movements. It was found that the pigging load has large effects on the stress and displacement of the touchdown zone (TDZ), especially the touchdown point (TDP). The displacement of the TDZ in the Y (vertical) direction is more significant than that in the X (horizontal) direction under pigging conditions, and the maximum displacement of the TDZ in the Y direction is proportional to the weight of the pig, as well as the length of the pigging-induced slugging.en_UK
dc.identifier.citationZhu X, Fu Y, Wang Y, et al., (2023) Research on the dynamic response of a steel catenary riser in the touchdown zone under pigging conditions. Energies, Volume 16, Issue 15, August 2023, Article number 5832en_UK
dc.identifier.issn1996-1073
dc.identifier.urihttps://doi.org/10.3390/en16155832
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20139
dc.language.isoenen_UK
dc.publisherMDPIen_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectsteel catenary riseren_UK
dc.subjectpiggingen_UK
dc.subjectsluggingen_UK
dc.subjecttouchdown zoneen_UK
dc.subjectdynamic responseen_UK
dc.titleResearch on the dynamic response of a steel catenary riser in the touchdown zone under pigging conditionsen_UK
dc.typeArticleen_UK

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