1.
Parameter Measurement and Transmission of the Drill Bit for Horizontal Directional Drilling
水平定向钻进钻头信息的测量与传输
2.
Application of Bit Water Way in HDD
水平定向钻进扩孔钻头水口应用分析
3.
Research on MWD Surveying Method and Locating Technique of Horizontal Directional Drilling;
水平定向钻进随钻测量方法及定位技术研究
4.
Research on the Drill Pipe Transportation Manipulator of Horizontal Directional Driller and the Control System
水平定向钻机钻杆输送机械手及控制系统研究
5.
Research of Key Technology with Drilling Stem Fixed with Cable in Directional Drilling under Coal Mine
煤矿井下定向钻进通缆钻杆关键技术研究
6.
Research and design of a measurement-while-drilling system for horizontal directional drilling
水平定向钻进随钻测量系统研究与设计*
7.
The measurement while drilling technology in nearly horizontal directional drilling in coal mines
煤矿井下近水平定向钻进中的随钻测量技术
8.
Application of Directional Drilling in CBM Exploration
定向钻进技术在煤层气勘探中的应用
9.
The First Crossing in the Project of West China Gas Transported to the East-Directional Drilling of Crossing the Huaihe River
西气东输工程第一穿——淮河定向钻穿越
10.
Simulating Research on Stress Effect in Horizontal Directional Drill Stem;
水平定向钻杆力学效应模拟仿真研究
11.
The construction craft research of directional note thick liquid water shutoff drill hole in the depletion region
过煤矿采空区定向钻孔施工工艺研究
12.
On the trenchless construction technology of horizontal directional drilling in sewerage projects
排水工程水平定向钻非开挖施工技术
13.
Application of Directional Drilling Technology in the Hole WFSD-1 of Wenchuan Earthquake Fault Scientific Drilling Project
汶川地震断裂带科学钻探一号孔(WFSD-1)定向钻进技术的应用
14.
Non- excavating horizontal directional drilling technique is a kind of newly developed construction technique.
非开挖水平定向钻进技术是一项高新施工技术。
15.
BHA directional behavior
底部钻具组合定向特性
16.
bit's directional cutting ability
钻头的定向切削能力
17.
Study on axial vibration drilling to improve positioning accuracy
轴向振动钻削提高钻孔定位精度研究
18.
Research on Direction Control Techology of Auger Drill Miner Drill
螺旋钻采煤机钻具定向控制技术的研究