磨钻、骨凿、刮勺和拉钩；
The invention also comprises an abrasion drill, a bone chisel, a spatula and a drag hook.
介绍了以回转双曲面作为麻花钻后刀面的数学模型，研究了钻头设计参数与刃磨参数的关系。
Mathematical model for twist drill hyperboloid grinding is introduced. The relationship between drill design para meters and grinding parameters is studied.
介绍了以回转双曲面作为麻花钻后刀面的数学模型，设计参数与刃磨参数的关系。
Mathematical model for hyperboloid grinding of twist drill and relationships between drill design and grinding parameters are introduced.
同时由于钻具接头超磨，也容易造成钻具使用周期缩短甚至提前报废。
At the same time the joint drill wear also easily lead to shortening the life cycle of drilling and even early retirement.
永久型封隔器由容易钻掉或者磨铣掉的材料制成。
Permanent packers are constructed of materials that are easy to drill or mill out.
阐述了内锥面法刃磨麻花钻的原理以及在工具磨床上进行磨削工艺试验的方法。
This paper illustrates the principle of the inner cone grinding twist drill and the process of grinding experiments on the tool grinder.
阐述内锥面刃磨麻花钻原理及在工具磨床上进行磨削工艺试验的方法和机床的调整。
Illustrates the principle of the inner cone grinding twist drills, the process of grinding experiments on the tool grinder and the adjustment of the tool grinder.
仅能用钻或磨铣方法从井筒中去除的封隔装置。
A packer assembly that can be removed from the wellbore only by drilling or milling.
主要用于刃磨铣刀、铰刀、拉刀、盘形车刀、插齿刀及扩孔钻等。
Mainly Renmo milling cutter, reamer, pulling knives, plate-shaped lathe tool, knife inserted teeth and bore drilling.
本文建立了基于渐开圆柱面的SPLIT钻数学模型，并进行了实际刃磨。
This paper established the mathematical model of SPLIT drill basing on the involute cylindrical surface, and conducted real edge grinding.
断铣工具是用来割断并磨铣井内一段套管以能够进行侧钻作业的专用工具。
The breaking and milling tool is a special tool used which is used to cut and mill a section of casing in hole so that sidetrack drilling operation can be done smoothly.
利用电镀超硬磨料刀具加工复合材料的“以磨代钻”工艺的提出，极大地提高了复合材料的加工质量和加工效率。
Using electroplating superabrasive tools, the process of "Drilling replaced by grinding" can notably improve the processing quality and efficiency of carbon fiber reinforced composites.
LW-2 台式万能刀具刃磨床主要用于刃磨普通刀具，如各类型铣刀、铰刀、车刀、刨刀、丝攻、锪钻等。
LW—2 bench style universal cutter grinder is used for grinding normal cutter such as various kingds of milling cutters, reamers, lathe tools, planning tools, screw tap and shaving drill ect.
台式万能刀具刃磨床主要用于刃磨普通刀具， 如各类型铣刀、铰刀、车刀、刨刀、丝攻、锪钻等。
LW—2 bench style universal cutter grinder is used for grinding normal cutter such as various kingds of milling cutters, reamers, lathe tools, planning tools, screw tap and shaving drill ect.
计算结果表明，有效偏心距和上部钻柱的提升力是影响近井口套管偏磨的主要因素。
The calculation results demonstrate the effective eccentricity and the lifting force of the upper drill string are the major influential factors.
安装和操作机器工具来执行反复加工操作，如车，铣，钻，镗，刨，珩磨，拉削，磨削或其他加工业务。
Set up and operate machine tools to perform repetitive machining operations, such as turning, milling, drilling, boring, planing, honing, broaching, grinding or other machining operations.
在石油天然气钻井施工过程中，常常造成钻具接头磨损、偏磨及丝扣粘连，这是引起钻具损坏进而演化为井下事故的主要原因之一。
In the construction process of oil and gas drilling, the joint drill wear, eccentric wear and threaded partial adhesion caused drilling damage and then evolved into the major mine accidents.
为了提高新型微钻头的钻削性能，提出了一种适合于微钻头的横刃修磨原理及方法。
To raise drilling performance of new micro-drill, a novel method was advanced for reginding of chisel edge.
分析了该钻头的结构和刃磨特点，进行了振动钻削试验。
The structures and tool grinding features were analyzed and vibration drilling experiments were done.
该模型能够用于求解钻头处的侧向力和转角以及偏轴接头处的侧向力，以评价钻具组合的防斜（纠斜）能力和偏轴接头附近的偏磨程度。
The lateral force on offset-axes sub can be calculated and used to evaluate the eccentrically wearing degree near the offset-axes sub.
通过更换凸轮，机床可以用来刃磨中心钻、阶梯钻等刃具。
Multi step and center drills can be ground by interchanging cams.
主要介绍的工具有：钻咀(头)、磨盘、铰刀、磨头、磨轮、磨轴。
The tools introduced include drill, millstones, reamer, grinding head, grinding wheel, grinding shaft.
水泥塞具有多种应用，包括水力分隔、提供可靠的平台以及在侧钻新眼时的套管开窗磨铣作业中的应用。
Cement plugs are used for a variety of applications including hydraulic isolation, provision of a secure platform, and in window-milling operations for sidetracking a new wellbore.
阐述了麻花钻内锥面刃磨法的原理及参数的确定方法，揭示了内锥面刃磨中存在“翘尾”现象的原因并提出了相应的解决措施。
The inner cone grinding method of twist drills is discussed. The phenomenon of up tail in the grinding method is exposed and the solving idea is given.
得出普通钻磨时的轴向平均切削力和平均扭矩均远大于超声钻磨加工时的轴向平均切削力和平均扭矩；
The research results show that the average axial cutting force and torque of common drill-grinding are greater than that of ultrasonic drill-grinding.
得出普通钻磨时的轴向平均切削力和平均扭矩均远大于超声钻磨加工时的轴向平均切削力和平均扭矩；
The research results show that the average axial cutting force and torque of common drill-grinding are greater than that of ultrasonic drill-grinding.
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