浅水柔性立管线型设计与顺应性研究

发布时间：2018-06-27 15:48

本文选题：柔性立管 + 缓波线型　；参考：《大连理工大学》2015年硕士论文

【摘要】：海洋柔性立管承担着连接浮式平台与水下生产设备的功能装备,是海洋油气开发的关键装备之一。随着浮式开发模式的日趋成熟,海洋柔性立管的使用越来越多,占立管的比例也越来越高。同时由于浮式开发模式的优越性,在浅水油气开发中也有非常好的应用前景。然而柔性立管在浅水应用面临着环境荷载影响显著、浮体运动相对剧烈等因素,使得浅水柔性立管线型设计非常困难,从而制约着柔性管缆在浅水的应用,因此,解决浅水立管线型设计问题迫在眉睫。本文研究工作属于国家863专项课题“柔性海底管道关键技术研究”(2012AA09A212)的一部分。本文首先对柔性立管线型的设计与分析方法进行详细的调研和总结,并以此为基础,针对现有设计方法设计周期长、效率低下等不足,发展了更为高效的线型参数设计方法；并以此为基础,结合浅水线型近远位的失效模式,对该方法的设计参数进行详细的参数分析,充分研究线型参数跟柔性管缆失效模式之间的关系,得到失效模式对应的性能曲线,对线型设计的参数取值空间进行规划,搭建立管线型设计平台,实现浅水线型的快速设计；最后结合将本文提出的设计方法用于某浅水单点系泊系统的设计分析,快速得到了适用的立管线型。本文的工作将为浅水柔性立管的缓波线型的工程设计提供一条高效的技术路线,对立管、缆这类顺应性结构的性能的研究提供有价值的参考。
[Abstract]:Marine flexible riser is one of the key equipments for offshore oil and gas development, which is responsible for connecting floating platform with underwater production equipment. With the development of floating development mode, more and more flexible risers are used and the proportion of risers is increasing. At the same time, because of the superiority of floating development mode, it also has a very good application prospect in shallow water oil and gas development. However, the application of flexible riser in shallow water is faced with significant influence of environmental load and relatively violent movement of floating body, which makes the design of flexible riser in shallow water very difficult, which restricts the application of flexible pipe cable in shallow water. It is urgent to solve the design problem of shallow water vertical pipeline. The research work in this paper is a part of the national 863 project, "Research on key Technologies of flexible Submarine Pipeline" (2012AA09A212). In this paper, the design and analysis methods of flexible vertical pipeline type are investigated and summarized in detail, and based on this, a more efficient design method of linear parameters is developed in view of the shortcomings of the existing design methods, such as long design period and low efficiency. On the basis of this, the design parameters of the method are analyzed in detail, and the relationship between the linear parameters and the failure mode of flexible pipe cable is fully studied, combined with the near distant failure mode of the shallow water line type, and the design parameters of the method are analyzed in detail. The corresponding performance curve of the failure mode is obtained, the parameter value space of the linear design is planned, the pipeline design platform is set up, and the quick design of the shallow water line is realized. Finally, the design method proposed in this paper is applied to the design and analysis of a shallow water single point mooring system, and a suitable vertical pipeline type is obtained quickly. The work in this paper will provide a highly efficient technical route for the engineering design of slow wave line of shallow water flexible riser, and provide a valuable reference for the study of the performance of compliant structures such as pipes and cables.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P742

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