力学与实践 ›› 2017, Vol. 39 ›› Issue (2): 152-157,134.DOI: 10.6052/1000-0879-16-309

• 应用研究 • 上一篇    下一篇

井眼轨迹控制工具主轴载荷与造斜能力关系研究

张红1,2,3, 向正新1,3, 钱利勤1,3, 冯定1,3, 涂忆柳1,3   

  1. 1. 湖北省油气钻完井工具工程技术研究中心(长江大学), 湖北荆州 434023;
    水电机械设备设计与维护湖北省重点实验室(三峡大学), 湖北宜昌 443002;
    3. 非常规油气湖北省协同创新中心(长江大学), 武汉 430100
  • 收稿日期:2016-09-23 修回日期:2016-11-11 出版日期:2017-04-15 发布日期:2017-04-19
  • 通讯作者: 张红,讲师,在职博士生,主要从事石油装备研究与开发等工作.E-mail:zhanghong821223@163.com;冯定,通讯作者,教授,博士生导师,主要从事石油机械及井下工具的设计、诊断及动态仿真的技术研究.E-mail:fengd0861@163.com
  • 基金资助:

    国家自然科学基金(51275057)、石油天然气装备教育部重点实验室(西南石油大学)项目(OGE201403-01)、湖北省教育厅科学研究计划中青年人才项目(Q20151301)和水电机械设备设计与维护湖北省重点实验室开放基金项目(2016KJX12)资助.

THE CORRELATION BETWEEN THE SPINDLE LOAD AND THE DEFLECTING CAPACITY OF THE WELLBORE TRAJECTORY CONTROL TOOL

ZHANG Hong1,2,3, XIANG Zhengxin1,3, QIAN Liqin1,3, FENG Ding1,3, TU Yiliu1,3   

  1. Hubei Engineering Research Center of Oil and Gas Drilling and Completion Tools (Yangtze University), Jingzhou 434023, Hubei, China;
    2. Hubei Key Laboratory of Hydro-mechanical Equipment Design and Maintenance (China Three Gorges University), Yichang 443002, Hubei, China;
    3. Hubei Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan 430100, Hubei, China
  • Received:2016-09-23 Revised:2016-11-11 Online:2017-04-15 Published:2017-04-19

摘要:

井眼轨迹控制工具是随钻实时完成导向功能的一种导向式钻井工具. 在复杂工况下,主轴承受钻压、扭矩和偏置机构作用力等,十分复杂. 在课题组前期研究的基础上,对样机主轴的力学行为开展了进一步的研究,在建立主轴静力学模型的基础上,分析了工具外壳刚度、偏置机构安装位置等因素对主轴力学行为与造斜能力的影响规律. 研究发现,主轴下端偏转角、偏心机构作用力和最大截面弯矩会随着偏心位移增加呈线性增加;随着外壳刚度的增加和偏置机构安装的位置与上支撑轴承之间距离的增加,工具造斜能力也会增强;通过分析偏置机构安装位置和外壳刚度对主轴力学行为的影响规律发现,随着外壳刚度的增大和偏置机构安装位置与上支撑轴承之间距离的增大,主轴最大截面弯矩也会增大. 最后,给出了最佳的外壳刚度与偏置机构安装位置建议.

关键词:

井眼轨迹控制工具|主轴|力学模型|力学行为|造斜能力

Abstract:

The wellbore trajectory control tool is a sort of guiding drilling tool to achieve the orientation function while drilling. Under complex conditions, the spindle is under the actions of the bit pressure, the torque, the force of biasing mechanism and so on. This paper studies the mechanical behavior of the prototype spindle. A spindle mechanical model is established. With the model, the influences of the housing stiffness and the position of the eccentric mechanism of the spindle on the mechanical behavior and the deflecting capacity are analyzed. The data analysis shows that the deflection angle of the lower end of the principal axis, the force of the biasing mechanism and the maximum bending moment will increase linearly with the eccentric displacement of the eccentric ring. With the increase of the housing stiffness and the axial bearing distance from the mounting position of the biasing mechanism, the tool deflecting capacity will be enhanced and the maximum bending moment of the spindle will increase. It is shown that, we have selected the most suitable house stiffness and the mounting position of the biasing mechanism, which would serve as a reference for the spindle design and the improvement of the deflecting capacity of the wellbore trajectory control tool.

Key words:

wellbore trajectory control tool|the spindle|mechanical model|mechanical behavior|deflecting capacity

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