1.
Discussion on Downhole Tool to Improve Drilling Maneuverability in Case of Narrow Density Windows
提高窄密度窗口钻井可操作性的井下工具探讨
2.
Design and Simulation Platform Research on Down-hole Tools Based on SolidWorks;
基于SolidWorks的石油井下工具设计仿真平台研究
3.
The Application of Web3D Technology in Down-hole Tools Information Exhibiting System
Web3D技术在井下工具信息展示系统中的应用
4.
wire-line workover
用绳索起下工具进行的修井
5.
downhole performance
钻具等设备的井下工作性能
6.
The Technology Assessment for Down-hole Production Tools Dynamic Testing System;
井下采油工具动态检测系统技术评价
7.
Application and Improvement of a Hydraulic Downhole Pulling Tool
井下液压增力打捞工具的应用及改进
8.
Design and Research on Downhole Water Injection Tool with Low-frequency Hydraulic Pressure Pulse
井下低频水力脉冲注水工具设计与研究
9.
Typical Structure and Application of Downhole Sand Jet Fracturing Tools
井下水力喷砂压裂工具典型结构及应用
10.
Design and Simulation of Downhole Low-frequency Pulse Water Injection Tool
井下低频脉动注水工具设计及仿真计算
11.
tool joint for well-drilling machines
工具接头,钻井机用
12.
wireline downhole guidance tool
钢丝绳井底导向工具
13.
open caisson method in underground construction
地下工程沉井法施工
14.
STUDY ON THE INFLUENCE OF ABNORMAL WELL BORE ON BOTTOM HOLE ASSEMBLY STRESS IN GAS DRILLING
非正常井眼对气体钻井下部钻具受力影响研究
15.
Minimum Age (underground work) Convention, 1965
（井下工作）最低年龄公约
16.
Basic Geological Conditions and Technology for Horizontal Well Drilling
水平井钻井具备的基本地质条件及工艺
17.
Development of rod absolute oil tool in workover operations of pumping wells
抽油井修井作业中抽油杆净油工具的研制
18.
Bottom-Hole Dynamic Coring Assembly Analysis Using the Finite Element Method and Deviation Control Research of Chinese Continental Scientific Drilling No.1 Well;
科钻一井井下动力取心钻具组合有限元分析与井斜控制研究