1) drill collar curvature
钻铤弯曲率
2) Drill collar
钻铤
1.
Research on a new stress relief groove of drill collar threaded connections;
新型石油钻铤联接螺纹减应力区的研究
2.
Measuring residual stress by blind-hole method for the box connection of Ф158.8 mm drill collar;
用盲孔法测量Ф158.8mm钻铤内螺纹端残余应力
3.
Dynamic load analysis of the drill collar during jarring operations by the FEM
震击作用时钻铤上动载荷的有限元分析
3) drilling collar
钻铤
1.
The study on drilling collar screw-stick,analysis of drilling collar screw thread and test of material and thread parameter have been done.
对钻铤粘螺纹事故进行了调查研究,并进行了宏观形貌和材质分析;对新钻铤材质和螺纹参数进行了检验,并采用不同旋螺纹扭矩对新钻铤试样进行了上卸螺纹试验。
2.
Fractographic and metallographic examination, mechanical testing have been carried out on the failure analysis of the drilling collar.
对钻铤断裂原因进行了断口分析、金相检验和力学性能试验。
4) borehole deviation
钻孔弯曲
1.
Through analyses of geological,skill and technological factors caused borehole deviation during drilling construction put forward preventing measures to install construction equipment correctly and use rational drilling tool structure.
通过对造成钻探工程施工中钻孔弯曲的地质、技术和工艺等因素的分析,提出了正确安装施工设备,采用合理的钻具结构的预防措施,并介绍了常用的下垂法、上漂法和封孔重开法在纠斜中的应用情况。
5) curved drilling
弯曲钻孔
6) bend of drill pipe
钻杆弯曲
补充资料：冻土钻(见取土钻)
冻土钻(见取土钻)
dongtuzuan冻土钻见取土钻
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条