西南石油大学学报(自然科学版) ›› 2016, Vol. 38 ›› Issue (5): 1-8.DOI: 10.11885/j.issn.16745086.2014.08.05.02

• 专家论坛 •    下一篇

深水钻井工况下隔水管横向振动特性研究

刘清友1,2, 朱军凯1,3, 毛良杰4   

  1. 1. 西南石油大学机电工程学院, 四川 成都 610500;
    2. 西华大学流体及动力机械教育部重点实验室, 四川 成都 600300;
    3. 中国石油塔里木油田分公司油气运销部, 新疆 库尔勒 841000;
    4. 西南石油大学石油与天然气工程学院, 四川 成都 610500
  • 收稿日期:2014-08-05 出版日期:2016-10-01 发布日期:2016-10-01
  • 通讯作者: 刘清友,E-mail:liuqy66@aliyun.com
  • 作者简介:刘清友,1965年生,男,汉族,重庆开县人,教授,博士生导师,长江学者特聘教授,主要从事海洋石油工程、管柱力学、机械工程等方面的教学科研工作。E-mail:liuqy66@aliyun.com;朱军凯,1989年生,男,汉族,河南商丘人,硕士,主要从事油气储运方面的研究。E-mail:389698920@qq.com;毛良杰,1987年生,男,汉族,四川成都人,博士,主要从事海洋深水钻井隔水管力学行为方面的研究工作。E-mail:maoliangjie@qq.com
  • 基金资助:
    国家自然科学基金(51274171);西南石油大学机电工程学院研究生创新基金(CX2014SY21)。

Study of Characteristics of Lateral Vibration of the Riser in Deepwater Drilling Condition

LIU Qingyou1,2, ZHU Junkai1,3, MAO Liangjie4   

  1. 1. School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. MOE Key Laboratory of Fluid and Power Machinery, Xihua University, Chengdu, Sichuan 600300, China;
    3. Oil and Gas Marketing Department, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
    4. School of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2014-08-05 Online:2016-10-01 Published:2016-10-01

摘要: 目前,对隔水管的振动研究鲜有涉及深水钻井工况对其横向振动特性的影响。为此,采用牛顿法建立了隔水管横向振动流固耦合模型,利用微分变换法(DTM)对模型进行求解,分析了钻井液排量与密度、张力比、钻柱结构等因素对隔水管横向振动固有频率的影响规律。结果表明,钻井液的存在会减小深水隔水管横向振动固有频率;隔水管横向振动固有频率随钻井液密度的增加而降低,随张力比的增加而增大;钻井液排量和钻柱尺寸对隔水管的横向振动固有频率影响不大。该研究可用于指导深水钻井作业,优化深水钻井工艺参数。

关键词: 深水钻井, 隔水管, 横向振动, 流固耦合, 固有频率

Abstract: Study of vibration of riser is rarely about lateral vibration of the riser in deepwater drilling condition. We built the fluid-structure interaction model for lateral vibration of the riser using Newton's method, and solve the model using the differential transform method(DTM). We also analyzed the effects of displacement of drilling fluid, fluid density, tension ratio, the riser's structure and other factors on the natural frequency of lateral vibration of risers. The results show that: the presence of drilling fluid will reduce the natural frequency of horizontal vibration of deepwater riser; natural frequency of the lateral vibration of the riser increases when the density of the drilling fluid decreases and when the tension ratio increase; tension ratio is a very serious impact on the natural frequency of the lateral vibration of the riser. The effect of the drilling fluid displacement and drill string size for the lateral vibration of the riser can be neglected under drilling conditions. The study results can be used to guide the operations and to optimize process parameters of deepwater drilling.

Key words: deepwater drilling, riser, lateral vibration, fluid-structure interaction, natural frequency

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