1.
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
2.
Research and application of complete set of technology for directional fracturing to increase coal seam permeability and eliminate coal/gas outbursts in underground coal mines
煤矿井下定向压裂增透消突成套技术研究及应用
3.
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
4.
Mechanism Research of Gas Drainage by Drilling Long Holes
井下预抽瓦斯定向长钻孔的合理性参数研究
5.
Device and Application of Underground Rope Directional Turn
井下弯道钢丝绳定向装置的研制与应用
6.
a tunnel horizontal to the surface leading to a mine is called an adit. There are also vertical shafts at right angle to the surface and inclined or slope shafts at another angle to the surface.
与地表平行通向井下的坑道是平峒。还有与地表成直角的竖井，与地表成一定角度的斜井。
7.
drifted borehole
偏离预定方向的井眼
8.
dual induction-laterolog-8 equipment
双感应-八侧向测井下井仪
9.
SYSTEM OF TRAJECTORY DESIGN AND CONTROL IN DRILLING DIRECTIONAL AND HORIZONTAL WELLS
定向井与水平井井眼轨迹控制专家系统
10.
DRILLING TECHNOLOGY OF THE DEEPEST DIRECTIONAL WELL-LONGGANG 8 IN SICHUAN
四川超深定向井龙岗8井钻井技术实践
11.
Optimizing design of wellbore trajectory of three-dimensional multi-target directional well;
三维多目标定向井井眼轨道优化设计
12.
Study on Vertical Structural Stability of a Super-deep Drilled Shaft in Slurry
泥浆中超深钻井井壁竖向稳定性分析
13.
3D visualization of hole trajectory in directional well drilling
定向井实钻井眼轨迹三维可视化描述
14.
Orientation is very important for a seismometer, whether it is installed on surface or in borehole.
无论地震计在地表或是井下使用，都必须精确定向。
15.
Forward modeling of AC logging responses in directional wells of anisotropic formations
定向井各向异性地层交流电测井响应模拟
16.
sweepout pattern
已定井网下的扫油路线
17.
fixed casing pump
套管型固定式井下泵
18.
fixed insert pump
插入型固定式井下泵