1.
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
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.
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
4.
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
5.
The guiding function of mud logging for increasing effective drilling catching rate in reservoirs of horizontal wells
录井对提高水平井储集层有效钻遇率的导向作用
6.
medium-radius lateral drilling
中曲率半径侧向钻井
7.
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
8.
Study on Dynamic Characteristics and Failure Mechanism of Drill String in Air Drilling
气体钻井钻柱动力学特性及钻柱失效机理研究
9.
To bore(a shaft) with a trepan.
钻用钻井机钻（矿井）
10.
An analysis on influential parameters for modeling permeability profile during underbalanced drilling in horizontal wells
水平井负压钻井渗透率剖面计算模型影响参数
11.
Pump Pressure Analysis of the 3NB2200 High Efficiency Well Drilling Pump
3NB2200型大功率钻井泵的泵压分析研究
12.
Development of 6kVA High-power Integrated Electric Coal Drilling Device for Coalmine Use
6kVA大功率井下煤电钻综合装置的研制
13.
Application of inverse well drill will permit quick and safe excavation of pilot shaft.
应用反井钻机开挖导井可达到快速安全的效果。
14.
Pilot test of horizontal drilling and completion techniques in Nanpu Oilfield
南堡油田先导试验水平井高效钻完井技术
15.
In drilling high angle deviated holes, friction is the main factor affecting the effective WOB.
在大斜度定向井钻井过程中，摩擦阻力是影响有效钻压的主要因素。
16.
An oil platform.
钻井平台石油钻井平台
17.
drilling practice
钻井实践；钻井习用方法；钻井作业；钻井参数
18.
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