海洋工程装备与技术

海洋工程装备与技术 ›› 2015, Vol. 2 ›› Issue (2): 84-87.

• 海洋油气勘探开发技术与装备 • 上一篇    下一篇

波流作用下的张力腿平台顶张紧式立管干涉分析

石云1, 周晓东1, 曹静1, 刘小燕2   

  1. 1. 中海油研究总院,北京 100028
    2. 北京高泰深海技术有限公司,北京 100011
  • 收稿日期:2015-03-20 出版日期:2015-04-10 发布日期:2016-03-30
  • 作者简介:

    作者简介:石云(1984--),男,硕士,工程师,主要从事海底管道和立管的设计与研究.

  • 基金资助:
    国家科技重大专项(2011ZX05030-006)

Interference Analysis of Top Tensioned Risers for Tension Leg Platform under Wave and Current

Yun SHI1, Xiao-dong ZHOU1, Jing CAO1, Xiao-yan LIU2   

  1. 1. CNOOC Research Institute, Beijing 100028, China
    2. COTEC, Beijing 100011, China
  • Received:2015-03-20 Online:2015-04-10 Published:2016-03-30

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摘要：

顶张紧式立管(TTR)是张力腿平台(TLP)的关键部分之一.TTR之间干涉的风险随着水深的增加而增加,因而立管之间的干涉评估也就变得越来越重要.如果因干涉引起的碰撞力或参与碰撞的能量足够大,则有可能会在立管的某区域产生损伤,降低立管的使用寿命,甚至危及平台的安全.针对某油田开发方案设计工作,对井槽间距的设置以及立管干涉分析进行研究,并对影响立管干涉性能的主要因素开展敏感性分析,为立管的研究及设计提供参考.

关键词: 张力腿平台, 顶张紧式立管, 干涉, 敏感性分析

Abstract:

Tension leg platform (TLP) has been widely used in deepwater oil field development in recent years. The risk of top tensioned riser (TTR) interference increases with the increase of water depth. If the collision force or collision energy caused by riser interference is large enough, it is possible to endanger the integrity of riser systems, and even the safety of the platform. TTR interference assessment becomes increasingly important and a design challenge for deepwater TLP. Reasonable well-bay spacing should be selected to avoid TTR collision and also minimize the impact on TLP topsides. Based on an oil field development plan, well-bay spacing and riser interference are investigated. The key parameters such as drag coefficient and top tension factor are discussed, and sensitivity analysis is carried out on those factors. The results may provide references for the research and design of TTRs.

Key words: tension leg platform, top tensioned riser, interference, sensitivity analysis

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