1.
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
2.
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
3.
The tooth marks depths′s finite element analysis of power slip in deep well drilling
深井钻井中动力卡瓦对钻杆造成的牙痕深度的有限元分析
4.
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
5.
CLAMPING FORCE ANALYSIS FOR ON/OFF SLIP OF CONTINUOUS-CIRCULATION SYSTEM
钻井连续循环系统上卸扣卡瓦卡紧力分析
6.
Experiment Study in High Gas Heavy Section Colligate Driving Drift Hydraulic Pressure Rockbolt Drill Vehicle
高瓦斯大断面综掘巷道液压锚杆钻车试验研究
7.
Action Mechanism Research and Improvement of Slips of Horizontal Directional Drilling Rig
水平定向钻机卡瓦的作用机理研究与改进
8.
boring machine for connecting rod and cylinder block bush
连杆瓦及缸体轴瓦镗床
9.
REWAKA, Denis DANGUE
德尼·当格-雷瓦卡
10.
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，
11.
hard banding of tool joint
钻杆接头表面加硬圈
12.
Ingersoll-Rand jumbo column
英格索尔－兰德钻车托杆
13.
stacking capacity of derrick
井架的钻杆立根容量
14.
plain clinometer
钻杆下部装的测斜仪
15.
hard facing of tool joint
钻杆接头表面加硬层
16.
engine ,drill, dental, with swivel arm
牙科钻机,带旋转杆
17.
shoulder dressing tool
钻杆接头端面整形工具
18.
Defects Analysis on 37CrMnMo4 Drill Pipe Joints
37CrMnMo4钻杆接头缺陷分析