1.
weight-responsive bottom-assembly
对钻压敏感的井底钻具组合
2.
Signal Processing of Near-Bit Weight on Bit and Torque
近钻头钻压、扭矩测量中微弱信号处理
3.
diaphragm-type weight unit
膜片式钻压测量装置
4.
Calculating Method and Effect on ROP of Ratio for WOB of RWD Tools
随钻扩眼工具钻压分配比的计算方法及对钻速的影响
5.
A NEW METHOD OF SOLVING BUILD-UP HOLE ANGLE PROBLEM ON PENDULUM ASSEMBLY WHILE WOB IS INCREASING
解决钟摆钻具在大钻压下增斜问题的新思路
6.
Research on Bit Pressure Control System of Auto-drilling Based on BP Theory;
基于BP算法的自动送钻钻压优化控制技术研究
7.
Research on Bit Pressure Control System of Auto-drilling Based on Fuzzy Theory;
基于模糊理论的自动送钻钻压控制系统的研究
8.
bit-pinching formations
钻压略重就扭矩增大转速减慢的地层
9.
easing the bit in
钻头轻压慢转钻进地层
10.
Drilling Fluid Technology for MPD in Moderate and Deep Well in Binhai Oilfield.DFCF,
滨海油田中深层控压钻井钻井液技术
11.
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
12.
high pressure water jet drilling system
高压水射流钻井系统
13.
tension-control cylinder
控制钻头给进的液压缸
14.
Joy-Sullivan hydrodrill rig
乔伊－苏利文液压钻车
15.
pressure balanced drilling bumpersub
压力平衡式钻井震击器
16.
a drill powered by compressed air.
用压缩空气驱动的钻。
17.
hydraulic gait-model all-auger drilling machine
液压步履式螺旋钻孔机
18.
horizontal borehole pressure recorder
水平钻孔压力记录器