1.
A finite element analysis of headframe intensity of 40-ton workover rig;
40t修井机井架强度的有限元分析
2.
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
3.
APPLICATION OF ORGANIC SALT DRILLING FLUID IN THE THIRD SECTION OF WELL T4031
有机盐钻井液在T4031井三开井段的应用
4.
Raise-boring machines
GB/T12761-1991天井钻机
5.
spider bow [for well drilling machines]
星形斗[钻井机用]
6.
The application of well drilling a big bore well through use a machinery to drilling、filling the grawel wall the well ' s outside about the well
机械成井、管外换料工艺在大口井成井中的应用
7.
SHALLOW HORIZONTAL DRILLING TECHNOLOGY BY USING VERTICAL-WELL RIG IN HENAN OILFIELD
河南油田直井钻机钻浅层水平井钻井技术
8.
ERW Drilling and Completion Technology in Ultra-Shallow Heavy Oil Reservoir with Conventional Vertical Rig
直井钻机钻超浅层稠油大位移水平井钻井完井技术
9.
Implementation of Non-Motor Pushing on Calibre Well Logging Toll
井径测井仪器非电机推靠技术的实现
10.
A discussion on the mechanism of acoustic cement bond logging
固井水泥胶结声波测井声学机理探讨
11.
drive bushing, Kelly,for well-drilling machines
凯氏传动衬套,钻井机用
12.
tool joint for well-drilling machines
工具接头,钻井机用
13.
beam pumping well
游梁式抽油机抽油的井
14.
kelly for well-drilling machiens
旋转钻孔,钻井机用
15.
computerized well planning program
计算机钻井设计程序
16.
computer-processed log interpretation
计算机处理测井解释
17.
mixed oil drilling rig
复合式石油钻井钻机
18.
"Enter your extension, followed by the pound (#) sign"
先拔井号键,再拔分机号