1.
great lengths of drill pipe which are rotated by an engine at the top,
钻杆顶部安装的发动机带动钻杆旋转，
2.
hard banding of tool joint
钻杆接头表面加硬圈
3.
stacking capacity of derrick
井架的钻杆立根容量
4.
plain clinometer
钻杆下部装的测斜仪
5.
hard facing of tool joint
钻杆接头表面加硬层
6.
shoulder dressing tool
钻杆接头端面整形工具
7.
Defects Analysis on 37CrMnMo4 Drill Pipe Joints
37CrMnMo4钻杆接头缺陷分析
8.
5.11 The drill collar O.D. is 7.5 inch, and the drill pipe O.D. is 5 inch.
钻铤外径为7.5” ，钻杆外径为5敗£
9.
Simulation Research on Drill Pipe of 2000 Meter Water Well Rig;
2000m水井钻机的钻杆仿真研究
10.
Experimental Model and Simulation Analysis on Drill Pipe of the Reconnaissance Drilling;
勘查钻进钻杆的实验模型与仿真分析
11.
The Research of Using Drill Stem as Antenna in Telemetering System of Well-drilling;
以钻杆为天线的钻井遥测系统的研究
12.
Control System Research of Pipe Racking System for the Drilling Platform
钻井平台钻杆自动排放控制系统研究
13.
According to the drillpipe structural characteristics, a dolly appropriate for drillpipe and Kelly detection is designed, of which its probe is adjustable.
根据钻杆的结构特点,设计了探头距离可调的适用于圆钻杆和方钻杆的探测小车。
14.
Application of pneumatic clip for oil drilling rig
新型气动钻杆卡瓦在钻井生产中的应用
15.
Design and Application of Multifunctional Drill Stems Pneumatic Clip for Oil Drilling Rig
石油钻机多功能钻杆气动卡瓦的设计及应用
16.
Research on the Drill Pipe Transportation Manipulator of Horizontal Directional Driller and the Control System
水平定向钻机钻杆输送机械手及控制系统研究
17.
Research of Key Technology with Drilling Stem Fixed with Cable in Directional Drilling under Coal Mine
煤矿井下定向钻进通缆钻杆关键技术研究
18.
Application of Triangular Drilling Rod to Gas Drainage Borehole Drilling in Medium Soft Seam
三棱钻杆在中软煤层顺层瓦斯抽排钻孔的应用