考虑流体升力作用的海洋钻井隔水管变形特性分析

冯钰钦; 艾志久; 艾雨

doi:10.3879/j.issn.1000-0887.2016.01.004

考虑流体升力作用的海洋钻井隔水管变形特性分析

doi: 10.3879/j.issn.1000-0887.2016.01.004

¹西南石油大学机电工程学院, 成都 610500;²中国民用航空局西南地区空中交通管理局, 成都 610000

详细信息

作者简介:
冯钰钦（1989—），男，硕士生(E-mail: zhaomu24@aliyun.com);艾志久（1954—），男，教授，博士生导师(通讯作者. E-mail: aizhijiu123@vip.sina.com).

中图分类号: TE951
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出版历程
- 收稿日期: 2015-06-23
- 修回日期: 2015-07-24
- 刊出日期: 2016-01-16

Analysis on Deformation Properties of Marine Risers Under Fluid Lift Forces

¹School of Mechatronic Engineering, Southwest Petroleum University,Chengdu 610500, P.R.China;²Southwest Air Traffic Management Bureau, Civil Aviation Administration of China,Chengdu 610000, P.R.China

摘要

摘要: 为了分析隔水管在复杂海洋环境下的变形，采用能量法及变分原理建立了隔水管的力学行为模型，并通过中心差商法对模型进行了数值分析.得到了隔水管的三维变形图，并通过计算机编程针对影响隔水管变形的主要因素进行了分析.结果表明，流体升力因素对隔水管变形有一定程度的影响；浮式钻井平台偏移量对隔水管变形的影响十分显著，隔水管变形随着偏移量的增加而增大；浮力块的安置虽然一定程度地增加了隔水管的变形，但却可以较好地改善隔水管的受力情况；隔水管变形随着顶部张力和钻井液密度的增大而减小.
- 隔水管 /
- 流体升力 /
- 海洋钻井 /
- 能量法
Abstract: In order to analyze the riser deformation in complex sea conditions, the energy method and variational principle were adopted to establish the mechanical behavior model, and numerical analysis was made with the central difference quotient. The 3D deformation diagrams of the marine risers were obtained, and the main factors influencing the marine riser deformation were investigated by numerical tests. The results show that the fluid lift force partly affects the riser deformation. The floating drilling platform offset has a significant effect on the riser deformation, i.e. the riser deformation increases dramatically with the offset. The installation of buoyancy blocks improves the stress condition of the marine riser, although that partly increases the riser deformation. Furthermore, the riser deformation decreases along with the top tension and drilling fluid density to some extent.
- marine riser /
- fluid lift force /
- offshore drilling /
- energy method

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参考文献(19)

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