海洋工程装备与技术 ›› 2016, Vol. 3 ›› Issue (2): 129-134.

• 海洋工程装备设计技术 • 上一篇    下一篇

基于OrcaFlex软件的柔性管缆正常铺设计算分析

孙锟, 李雪松, 陈晓东, 石锦坤   

  1. 深圳海油工程水下技术有限公司;海洋石油工程股份有限公司;
  • 收稿日期:2016-03-12 出版日期:2016-04-25 发布日期:2017-08-12
  • 作者简介:孙锟(1990—),男,硕士,助理工程师,主要从事船舶与海洋工程方面的研究。
  • 基金资助:
     

Normal Laying Analysis of Flexible Line Using OrcaFlex

SUN Kun, LI Xue-song, CHEN Xiao-dong, SHI Jin-kun   

  1. 1.COOEC Subsea Technology Co., Ltd., Shenzhen, Guangdong 518067, China; 2.Offshore Oil Engineering Co., Ltd., Tianjin 300461, China
  • Received:2016-03-12 Online:2016-04-25 Published:2017-08-12
  • Supported by:
     

摘要: 海上铺设柔性管缆是海洋油气开采技术的重要环节之一,而能够准确评估管缆铺设参数以确定作业天气窗口是其关键问题。基于集中质量法,分别从模型建立条件、模型数据输入、作业接受标准、施工作业参数等方面考虑,明确柔性管缆铺设分析施工参数,建立简化的正常铺设分析模型和分析方法,并以工程项目为实例,进行layback敏感性、轴向压力、最大作业海洋环境等分析。根据作业接受标准确定合适的作业天气窗口为2.5m有义波高、30°浪向内。分析表明:选取合适的layback有利于海上施工作业;实际施工中应避免出现轴向压力;对于浅水电缆铺设,最小弯曲半径是决定海上最大作业海况的主要限制条件。

Abstract: Installation of flexible lines, such as pipe, cable and umbilical, is an important part of offshore operation for exploring oil and gas, and the key issue is how to assess the installation parameters accurately and determine the weather window. A simplified model and the corresponding analysis method for normal laying of flexible line are presented based on lumped mass method with the considerations for the modeling, the input data of the analysis, the acceptance criteria of the operation and the important parameters used in the operation. Taking a cable installation project as an example, the sensitivity analysis for the layback, the analysis of the axial compression, and the determination of the maximum environmental condition for the operation are performed. The proper weather window is 2.5 m significant wave height and 30° wave direction. The results show that selecting a proper layback is good for offshore operation; it is suggested to avoid the axial compression; for laying cable in shallow water, minimum bending radius (MBR) is the main limiting criterion to decide the maximum allowable environment condition.

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