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Dynamic analysis of SLWR subjected to internal slug flow conditions

Authors
Park, B.W.Oh, S.H.Kwon, Y.J.Jung, J.H.Jung, D.H.
Issue Date
2019
Publisher
International Society of Offshore and Polar Engineers
Keywords
Catenary equation; Configuration; Flow regime; Slug flow; Steel wave lazy risers
Citation
Proceedings of the International Offshore and Polar Engineering Conference, v.2, pp 1861 - 1867
Pages
7
Journal Title
Proceedings of the International Offshore and Polar Engineering Conference
Volume
2
Start Page
1861
End Page
1867
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/8402
ISSN
1098-6189
Abstract
The riser is one of the most important system for deep water oil field development, which can transfer production fluid such as gas, oil and water from well to topside of processing platform on sea surface. There are several types of riser systems, depending on the material, configuration, and layout. Among these possible selections, Steel Lazy Wave Riser(SLWR) is a riser system suitable for deep and severe environmental conditions, because it can reduce excessive line tension at the hang-off position and fatigue damage at the touchdown point. A lazy wave configuration can be implemented using buoyancy modules attached in the middle of the SLWR. The configuration of the SLWR varies depending on the density and flow pattern of the production fluid. In this paper, the initial configurations of the SLWR ware evaluated based on catenary equation taking into account buoyancy from buoyancy modules. Dynamic analysis carried out considering the influence of density of the internal fluid and fluid pattern in configuration, especially for slug flow data calculated using multi-phase flow analysis. Applicability of SLWR of configuration and design considering effects of internal flow regime ware studied based on the analysis results. ? 2019 by the International Society of Offshore and Polar Engineers (ISOPE).
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친환경해양개발연구본부 (심해공학연구센터)
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