1.
Discussion on the reason of influencing coalfield drilling efficiency and its countermeasure
浅谈影响煤田钻探效率的原因及其对策
2.
Promote the efficiency of drilling equipments in tunneling and drilling rocks
提高钻探设备在岩石中掘进钻井的效率
3.
Analysis on the Effect Factors of Drilling Work Efficiency and Cost in Geological Survey Project;
影响地调项目钻探施工效率与成本的因素分析
4.
Study on Improving the Drilling Efficiency of the Hailar and Tamtsay Exploration Area
海拉尔—塔木察格探区提高钻井效率技术研究
5.
The Multi-functions of Micro-bubble Drilling Fluid for Core Drilling
微泡钻井液在岩芯钻探中的多重功效
6.
A Brief Explanation of Air Actuated DTH Hammer Drilling Efficiency
空气潜孔锤钻进是提高钻进效率的有效途径
7.
Beta Distribution and Quality Contrel of Drill-Core Recovery
贝塔分布与钻探取心率的质量控制(一)
8.
Method of Enhancing Correct-judgement Rate by the Pile Foundation Geological Drilling in Karst Area
提高岩溶桩基地质钻探正判率的方法
9.
Laser has been found very efficient in drilling small holes.
人们发现激光用于小孔钻眼效率很高。
10.
offshore drilling
海底钻探;海上钻井;海上钻探;海洋钻井;海洋钻探;近海钻探;滨外钻探
11.
Discuss of Effectiveness Lose Inducement and Damage to BHA in Wet H_2S Environment
钻具失效诱因及湿H_2S环境危害探讨
12.
Discussion on methods of simulation for resistivity logging-while-drilling (LWD) measurements
随钻电阻率测量系统响应模拟算法探讨
13.
Application of Core Drilling Collecting Rate to Evaluate Seam Gas Content and Distribution
应用钻探岩芯采取率评价煤层瓦斯含量及分布
14.
Deviation Percent Model to Analyze Target Hitting of Actual Horizontal Wellbore Trajectories
水平井实钻轨迹中靶效果分析的偏差率模型
15.
FEA of Efficiency in Rotary Ultrasonic Drilling of Engineering Ceramics;
工程陶瓷旋转超声钻削效率的有限元分析
16.
Experiment on effect of cutter parameters of PDC bit on rate of penetration
布齿参数对PDC钻头破岩效率影响的试验
17.
The efficiency study of traveling hydraulic drive about the down-the-hole drill
潜孔钻机履带行驶液压驱动系统效率研究
18.
ROP increasing method based on the utilization efficiency of hydraulic power for the ultra-deep wells
基于水力能量利用效率的超深井钻井提速技术