Study of PDC bit’s optimization matching with dynamical drilling tools and PDC bit drilling-in performance;
PDC钻头与动力钻具的优化匹配和钻进特性研究
ANALYZING SELF-LOCKING PHENOMENON OF PDM(POSITIVE DISPLALEMENT MOTOR) WITH BENT SUB IN SAIPING 1 WELL
塞平—1井所用单弯螺杆动力钻具自锁现象分析
Wellbore dynamic surge pressure while tripping a drill pipe in slim hole drilling
小井眼钻具升降产生的孔内波动压力
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
drill ,electric, hand-held (incl. rock drills)
电动钻具,手持式（包括岩石钻具）
Study on the Modeling and the Hydromechanics of the Fluid in the Auto Anti-Deviation Drilling System;
自动垂直钻具井下流场建模及受力分析
hand-held non-electric power-operated boring tools
手提式非电动机动钻具
Development of Hydraulic Controlled Steerable Mechanism of Automatic Vertical Drilling Tools and Its Dynamics Characteristic Analysis
自动垂直钻具液控导向机构的研制与动力学特性分析
ANALYSING DYNAMIC CHARACTERISTICS OF DRILLING STRING EDDY OF INSIDE CONTAINING DRILL FLUID
内含钻井液的钻柱涡动动力特性分析
Strong sense of responsibility and teamwork spirit; Initiative and capable of self-study and hands on.
爱钻研、具备很强自学能力及动手能力；具有强烈责任感和团队协作精神。
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
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
Technical measure for enhancing treating ability of drilling tools for drilling pipe sticking by section reducing
提高钻具处置缩径卡钻能力的技术措施
The Dynamic Analysis on Drilling System of ZY-200 Type Rotary Drilling Rig;
ZY-200型旋挖钻机钻挖系统动力学分析
Structural dynamic analysis on ultrasonic driller and drilling experiments
超声钻结构动力分析与钻削实验研究
engine mud sill
钻机动力机下纵向底梁
drill(ing) head
钻头; 主轴头; 钻床床头箱; 钻削动力头;钻头头部, 钎头
Mechanical Analysis and Design of Coring BHA in Long Horizontal Segment
水平段大段取心钻具力学分析与设计
Design of Annular Slot Cutting Tool Used in Rock Stress Measurement with Borehole-wall Stress Relief Method
钻孔局部壁面应力解除切割工具设计