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The use of HMPE mooring lines in deepwater MODU mooring systems

机译：深水MOTU系泊系统中HMPE系泊线的使用

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The use of synthetic components, particularly polyester, in deepwater Mobile Offshore Drilling Units (MODUs) mooring systems has become a viable option to extend the mooring capabilities of a MODU. To date, the use of synthetic components in MODU moorings has mostly been limited to polyester, with few exceptions. This paper will focus on an alternative synthetic mooring component, High Modulus Polyethylene (HMPE), for use in deepwater MODU mooring systems. This report highlights key aspects of MODU mooring system performance when analyzed with HMPE components. As a benchmark, the performance of other systems including conventional catenary mooring systems and polyester mooring systems are compared with the performance of HMPE mooring systems. The mooring systems considered in this study range in water depths up to a maximum of 10,000-feet. MODU and mooring system responses were analyzed for the survival condition or draft with Gulf of Mexico (GOM) hurricane metocean conditions. The limiting line tension utilization and FOS (Factor of Safety) values from the survival analyses are compared for all mooring system types showing the range of survivability/performance between the different mooring systems. Also shown are MODU passive offsets among the different mooring systems analyzed. Conclusions from this study will show that an HMPE MODU mooring system can be engineered to have similar performance as a polyester system in deepwater applications, including survivability and station keeping ability.
机译：在深水移动海上钻井单元（MODUS）系泊系统中使用合成组分，特别是聚酯，已成为延长MODU的系泊能力的可行选择。迄今为止，MODU系泊中的合成组件主要限于涤纶，少数例外情况。本文将专注于替代的合成系泊组件，高模量聚乙烯（HMPE），用于深水MODU系泊系统。此报告突出显示使用HMPE组件分析时MODU系泊系统性能的关键方面。作为基准，将其他系统的性能与HMPE系泊系统的性能进行了比较了包括常规脉链系泊系统和涤纶系泊系统的性能。在该研究中考虑的系泊系统在水深距离最大10,000英尺。分析Modu和系泊系统的响应，用于墨西哥湾（GOM）飓风中央条件的生存条件或草案。对来自生存分析的限制线张力利用和FOS（安全因素）值与所有系泊系统类型，显示不同系泊系统之间的生存能力/性能范围。还示出了不同系泊系统之间的Modu被动偏移分析。本研究的结论将表明，HMPE Modu系泊系统可以设计成具有与深水应用中的聚酯系统相似的性能，包括生存能力和站保持能力。

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    《OCEANS》|2008年||共4页
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    Garrity R.; Fronzaglia W.;

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