Causes and Treatment Measures of Submarine Pipeline Free-Spanning

Submarine pipelines, as arteries for offshore oil and gas transportation, play a particularly important role in the exploitation of offshore oil and gas resources. Since the world’s first submarine pipelines were laid in the Gulf of Mexico, numerous failures have been caused by pipeline free-spannin...

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Main Authors: Bo Zhang, Rui Gong, Tao Wang, Zhuo Wang
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Journal of Marine Science and Engineering
Subjects:
Online Access:https://www.mdpi.com/2077-1312/8/5/329
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author Bo Zhang
Rui Gong
Tao Wang
Zhuo Wang
author_facet Bo Zhang
Rui Gong
Tao Wang
Zhuo Wang
author_sort Bo Zhang
collection DOAJ
description Submarine pipelines, as arteries for offshore oil and gas transportation, play a particularly important role in the exploitation of offshore oil and gas resources. Since the world’s first submarine pipelines were laid in the Gulf of Mexico, numerous failures have been caused by pipeline free-spanning. This paper provides a review of the causes and treatment measures for the free span of submarine pipeline. Various factors cause the free span of submarine pipelines, including wave flow scouring, fluctuations in seabed topography, residual stress or thermal stress of pipelines, and human activities. The scour of the wave current is the main factor affecting free span; the research on sediment starting and equilibrium depth during scour is reviewed in-depth. For the span treatment of submarine pipelines, the main measures available at present include the re-digging trench burying, structural support, covering bionic water plants, and choke plate self-burying. For each, the principle, advantages, disadvantages, and research are discussed. This review provides a convenient resource for understanding the causes of submarine free-spanning pipelines and choosing suitable treatment measures.
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spelling doaj.art-e59192ffe6b94df581bb722700103e9f2023-11-19T23:45:41ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-05-018532910.3390/jmse8050329Causes and Treatment Measures of Submarine Pipeline Free-SpanningBo Zhang0Rui Gong1Tao Wang2Zhuo Wang3College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaSchool of MechanicalEngineering, Hebei University of Technology, Tianjin 300401, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaSubmarine pipelines, as arteries for offshore oil and gas transportation, play a particularly important role in the exploitation of offshore oil and gas resources. Since the world’s first submarine pipelines were laid in the Gulf of Mexico, numerous failures have been caused by pipeline free-spanning. This paper provides a review of the causes and treatment measures for the free span of submarine pipeline. Various factors cause the free span of submarine pipelines, including wave flow scouring, fluctuations in seabed topography, residual stress or thermal stress of pipelines, and human activities. The scour of the wave current is the main factor affecting free span; the research on sediment starting and equilibrium depth during scour is reviewed in-depth. For the span treatment of submarine pipelines, the main measures available at present include the re-digging trench burying, structural support, covering bionic water plants, and choke plate self-burying. For each, the principle, advantages, disadvantages, and research are discussed. This review provides a convenient resource for understanding the causes of submarine free-spanning pipelines and choosing suitable treatment measures.https://www.mdpi.com/2077-1312/8/5/329oil and gas transportationsubmarine pipelinesfree-spanningcausestreatment measuresscour
spellingShingle Bo Zhang
Rui Gong
Tao Wang
Zhuo Wang
Causes and Treatment Measures of Submarine Pipeline Free-Spanning
Journal of Marine Science and Engineering
oil and gas transportation
submarine pipelines
free-spanning
causes
treatment measures
scour
title Causes and Treatment Measures of Submarine Pipeline Free-Spanning
title_full Causes and Treatment Measures of Submarine Pipeline Free-Spanning
title_fullStr Causes and Treatment Measures of Submarine Pipeline Free-Spanning
title_full_unstemmed Causes and Treatment Measures of Submarine Pipeline Free-Spanning
title_short Causes and Treatment Measures of Submarine Pipeline Free-Spanning
title_sort causes and treatment measures of submarine pipeline free spanning
topic oil and gas transportation
submarine pipelines
free-spanning
causes
treatment measures
scour
url https://www.mdpi.com/2077-1312/8/5/329
work_keys_str_mv AT bozhang causesandtreatmentmeasuresofsubmarinepipelinefreespanning
AT ruigong causesandtreatmentmeasuresofsubmarinepipelinefreespanning
AT taowang causesandtreatmentmeasuresofsubmarinepipelinefreespanning
AT zhuowang causesandtreatmentmeasuresofsubmarinepipelinefreespanning