钻井工具主要有井口工具和井下钻具。井口工具为起下和上卸钻具的工具，如吊钳、吊卡、卡瓦等。吊钳用于上、卸各类下井钻具丝扣。吊卡用以悬挂、提升和下放钻柱。卡瓦用于卡住钻柱并悬挂在转盘上。
底切式钻井工具 undercut drilling tool
定向钻井工具 directional drill tool
搬出钻井工具 mort
井下钻井工具 downhole drilling tools
钻柱、钻井工具及仪表 drill string, drilling tool and instrumentation
旋转导向钻井工具 rotary drilling steering tool ; Rotary Steering Drilling tool
涡轮钻具井底工作特性 hole-bottom working characteristics of turbo-drill
稳定平台单元机械系统的设计是旋转导向钻井工具的关键和难点之一。
Mechanical design of stabilized platform unit is one of the key techniques in the rotary steering drilling tool.
旋转导向钻井工具稳定平台的闭环控制是调制式旋转导向钻井系统的关键。
The closed loop control of the stabilizing platform on the rotary steering drilling system is the key technique of the modulating rotary steering drilling system.
套管柱顶部的一根大口径管，形如漏斗，以引导钻井工具进入到井眼的顶部。
An enlarged pipe at the top of a casing string that serves as a funnel to guide drilling tools into the top of a well.
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