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Research on the spindle deflecting reliability of the wellbore trajectory control tool based on Palmgren-Miner
Journal of Mechanical Science and Technology ( IF 1.6 ) Pub Date : 2020-07-24 , DOI: 10.1007/s12206-020-2105-0
Hong Zhang , Lei Shi , Xuhui Liu , Xianshu Leng , Ding Feng , Paul Tu

Wellbore trajectory control tool is a sort of point-the-bit drilling tool to achieve the steering function while drilling. In complex conditions, the spindle bears the acting force of the bit pressure, the torque, the force of biasing mechanism and so on. So the force is very complex. Basing on the early research of our group, the further research of spindle deflecting reliability of prototype has been carried out. Based on the contact analysis between the tool spindle and the inner eccentric ring, the variation law of contact stress between the inner ring of the eccentric mechanism and the spindle is studied. Based on Palmgren-Miner and the fatigue life experiment of the spindle material, the cumulative damage calculation model of the spindle is established, and the fatigue life of spindle is solved. The result shows that the deflecting reliability of the spindle can be guaranteed.



中文翻译:

基于Palmgren-Miner的井眼轨迹控制工具的主轴偏转可靠性研究

井眼轨迹控制工具是一种点钻工具,可在钻井时实现转向功能。在复杂条件下,主轴承受钻头压力的作用力,扭矩,偏置机构的力等。因此力量非常复杂。在我们小组的早期研究的基础上,对原型的主轴偏转可靠性进行了进一步的研究。通过对刀具主轴与内偏心圈的接触分析,研究了偏心机构内圈与主轴之间的接触应力变化规律。基于Palmgren-Miner和主轴材料的疲劳寿命试验,建立了主轴的累积损伤计算模型,求解了主轴的疲劳寿命。

更新日期:2020-07-24
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