drilling g pipe钻杆
Directional Drilling and pipe laying定向钻孔铺管
drilling rig pipe racking arm钻杆排放悬臂
drilling and pipe-laying开槽布管
fishing through-drilling-pipe电缆穿芯打捞
corrosion of drilling pipe钻具腐蚀;钻具侵蚀
drilling pipe powe钻杆动力钳箱
dual drilling pipe双壁钻杆
drilling pipe enclosure钻杆盒
We manufactured 250 Ton new drilling pipe with the machine. It indicated that we could weld new drilling pipe by native machine, which is important to our country economy progress.
本文所取得的成果，极大的提高了整个国产钻杆热处理生产线的性能，在此基础上生产了250余吨新钻杆并全部发往钻井现场使用，效果良好，开创了利用国产设备生产新钻杆的先河，在国民经济发展中将具有重要意义。
参考来源 - 石油钻杆摩擦焊接头焊后感应热处理PLC闭环控制系统研究According to the research and mend above, the performance of welding and heating production line was improved vastly. We produced about 1000 metric tons new drilling pipe and got many approvals from users.
通过对以上几方面的研究改进，极大提高了整个国产钻杆焊接和热处理生产线的性能，在此基础上试焊了1000余吨新钻杆并全部发往钻井现场使用，效果良好，开创了利用国产设备焊接新钻杆的先河。
参考来源 - 钻杆对焊自动找正及焊区热处理监控系统研究