1.
The Analysis of Principle for Drill Frame of MG100 Hydraulic Roof Bolter
MG100全液压锚杆钻机钻架工作原理分析
2.
Analysis on balling up caused by helicoid hydraulic motor bypass valve failure in combined drilling technology
复合钻井过程中螺杆钻具旁通阀刺漏造成钻头泥包分析
3.
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，
4.
hard banding of tool joint
钻杆接头表面加硬圈
5.
Ingersoll-Rand jumbo column
英格索尔－兰德钻车托杆
6.
stacking capacity of derrick
井架的钻杆立根容量
7.
plain clinometer
钻杆下部装的测斜仪
8.
hard facing of tool joint
钻杆接头表面加硬层
9.
engine ,drill, dental, with swivel arm
牙科钻机,带旋转杆
10.
shoulder dressing tool
钻杆接头端面整形工具
11.
Defects Analysis on 37CrMnMo4 Drill Pipe Joints
37CrMnMo4钻杆接头缺陷分析
12.
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£
13.
Simulation Research on Drill Pipe of 2000 Meter Water Well Rig;
2000m水井钻机的钻杆仿真研究
14.
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
15.
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
16.
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
17.
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。
18.
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