1.
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
2.
A Research on Failure Mechanism of Drilling String in Interaction of Stresses and Corrosion;
交变应力和腐蚀交互作用下钻柱失效机理研究
3.
Study on Weary Petroleum Drill Post Corrosion Loses Efficacy Mechanism and Prevention and Cure Measure;
石油钻柱疲劳腐蚀失效机理及防治措施研究
4.
Analysis on sealing failure of myriameter drilling mud pump plunger and improvement measures
万米钻井泥浆泵柱塞密封失效分析及改进
5.
STUDY ON MECHANICAL EFFECT AND COAL PILLAR STABILITY DURING HIGHWALL MINING WITH AUGER MACHINE
螺旋钻机开采的力学效应及煤柱稳定性研究
6.
Numerical simulation of small pillar stress concentration areas borehole pressure relief effect
小煤柱应力集中区钻孔卸压效果的数值模拟
7.
Failure Analysis of φ127.0 mm×9.19 mm G105 Drill Pipe
φ127.0 mm×9.19 mm G105钻杆失效分析
8.
Probe on the Failure Analysis and the Design Optimization of Drill Pipe Structure
失效分析对钻杆结构设计优化的促进
9.
Failure Analysis of φ127 mm G105 Punched Drilling Pipe
φ127 mm G105钻杆管体刺穿失效分析
10.
Longitudinal-cracking Failure Analysis of Box
φ139.7mm钻杆内螺纹接头纵向开裂失效分析
11.
Piercing Failure Analysis ofΦ127 mm S135 Drill Pipe
φ127 mm S135钻杆刺漏失效分析
12.
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
13.
Failure Analysis on Tool Joint Expansion of φ88.9mm×9.35mm G105 Drill Pipe
φ88.9mm×9.35mm G105钻杆内螺纹接头胀扣失效分析
14.
Research on Fatigue Invalidation of Helical Outer Spring for Type K2 Bogie;
K2转向架圆柱外弹簧疲劳失效研究
15.
Analysis of Sucker Rod & String Fatigue Failure on Heat Treatment Factor
抽油杆柱疲劳失效的热处理因素分析
16.
The endurance crack is apt to be produced in collar thread during drilling, which eventually results in the connection failure.
在钻井过程中,钻铤螺纹容易产生疲劳裂纹,最终导致连接失效。
17.
Analysis for Petroleum Casing Pipe and Drilling String Failure and Reliability Design Method Research;
钻井套管失效机理分析及可靠度设计方法研究
18.
Mechanical Performance and Fatigue Failure of Bottom Hole Assembly;
下部钻具组合力学特性分析及疲劳失效研究