|Table of Contents|

Citation:
 J. H. Seo,D. K. Kim,H. S. Choi,et al.Simplified Technique for Predicting Offshore Pipeline Expansion[J].Journal of Marine Science and Application,2018,(1):68-78.[doi:10.1007/s11804-018-0006-8]
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Simplified Technique for Predicting Offshore Pipeline Expansion

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Title:
Simplified Technique for Predicting Offshore Pipeline Expansion
Author(s):
J. H. Seo1 D. K. Kim123 H. S. Choi1 S. Y. Yu2 K. S. Park4
Affilations:
Author(s):
J. H. Seo1 D. K. Kim123 H. S. Choi1 S. Y. Yu2 K. S. Park4
1 Graduate School of Engineering Mastership, Pohang University of Science and Technology, Pohang 37673, Republic of Korea;
2 Ocean and Ship Technology Research Group, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia;
3 Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia
Keywords:
Pipe expansionHP/HTThermal expansionSubsea pipeline
分类号:
-
DOI:
10.1007/s11804-018-0006-8
Abstract:
In this study, we propose a method for estimating the amount of expansion that occurs in subsea pipelines, which could be applied in the design of robust structures that transport oil and gas from offshore wells. We begin with a literature review and general discussion of existing estimation methods and terminologies with respect to subsea pipelines. Due to the effects of high pressure and high temperature, the production of fluid from offshore wells is typically caused by physical deformation of subsea structures, e.g., expansion and contraction during the transportation process. In severe cases, vertical and lateral buckling occurs, which causes a significant negative impact on structural safety, and which is related to on-bottom stability, free-span, structural collapse, and many other factors. In addition, these factors may affect the production rate with respect to flow assurance, wax, and hydration, to name a few. In this study, we developed a simple and efficient method for generating a reliable pipe expansion design in the early stage, which can lead to savings in both cost and computation time. As such, in this paper, we propose an applicable diagram, which we call the standard dimensionless ratio (SDR) versus virtual anchor length (LA) diagram, that utilizes an efficient procedure for estimating subsea pipeline expansion based on applied reliable scenarios. With this user guideline, offshore pipeline structural designers can reliably determine the amount of subsea pipeline expansion and the obtained results will also be useful for the installation, design, and maintenance of the subsea pipeline.

References:

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Memo

Memo:
Received date:2017-01-04;Accepted date:2017-09-21。
Foundation item:Supported by the Technology Innovation Program (Grant No.:10053121 and 10051279) funded by the Ministry of Trade, Industry & Energy (MI, Korea).
Corresponding author:D. K. Kim, do.kim@utp.edu.my
Last Update: 2018-10-11