Vibration Characteristic Analysis and Information Transmission Test of bottom Drilling Tool

底部钻具振动特性分析及信息传输实验

属类：行业术语-中文论文标题-

Application of Spired Stabilizer and Collar Combination of Packed Hole anti-deflection Drilling Tool to Well Drilling in deep-seated Bedrocks

螺旋式扶正器与钻铤组合满眼防斜钻具在基岩地层深水井施工中的应用

属类：行业术语-中文论文标题-

Flourecent Magnetic Particle Inspection and Flaw Analysis for the Screw Thread of Oil Drilling Tool

石油专用钻具螺纹荧光磁粉探伤及缺陷分析

属类：行业术语-中文论文标题-

Moreover, the removal of the coiled chips from the drilling tool previously necessary after each drilling cycle is dispensed with.

而且，省却了以前在钻孔之后必须从钻孔工具中移走切屑螺旋的需要。

属类：英汉句库-ip.com-

Sand pile drilling test adopted mod counterfort to prevent burying the drilling tool by the borehole from collapsing.

砂桩钻孔检测为防止塌孔埋住钻具，采用泥浆护壁。

属类：中国大陆-www.ceps.com.tw-

each drilling tool comprises a drill bit, a drill pipe behind the drill bit and a hollow drill pipe sleeve outside the drill pipe;

所述钻具包括钻头，位于钻头后方的钻杆，钻杆外套中空的钻杆套；

属类：英汉句库-ip.com-