钻杆

Its upper end is drill pipe box or union, the nether end is casing pin. It is a crossover with hollow inside.

它是个上端为钻杆母扣或者由壬，下端为套管公扣，内空心的转换接头。

The Floormen rotate the pipe into the box utilising the air spinner or where applicable, the Driller utilises the top-drive or the kelly spinner.

钻工在钻杆或管子接头上上打上大钳（内钳打在下方接头上，外钳打在上方接头上）钻工通过拉钳头推钳柄使钳子咬紧。

A numerical method for contact mechanics and fracture analysis for oil drill pipe screw coupling have been systemically studied in a deepgoing way in this thesis.

本文就接触力学的数值计算方法，石油钻杆接头螺纹齿的断裂计算作了深入、细致、系统的研究，主要工作包括以下几方面。

That pipe thread is bad. Use another one instead.

那个钻杆的丝扣坏了，换另外一根。

The paper gives a overall of the current situation of the development of drill pipe power tongs in well at home and abroad at first, given the manufacture techonology.

本文运用的基于自顶向下设计思想进行参数化设计的方法，现已完成了&钻杆动力钳系列产品开发&的项目。

Drill pipe power tongs and casing power tongs manufactured by the company have been awarded as famous-brand products for China petroleum and petrochemical equipment manufacturing industry.

公司享有API7K、8A、8C会标使用权，钻杆动力钳和套管动力钳系列产品被评为&中国石油石化装备制造业名牌产品和驰名品牌产品&。

The main products has: ZQ drill pipe power tongs series, QT Series Casing power tongs, FYZ series air-cooled hydraulic, pneumatic winch series, XYQ tubing power tongs series, ZQ-100 suspended or devices.

主要产品有：ZQ钻杆动力钳系列，QT套管动力钳系列，FYZ风冷液压系列，气动绞车系列，XYQ油管动力钳系列，ZQ-100吊升装置等。

Study of the torsion strength and material toughness criteria of drill pipe tool joint［J］.

钻杆接头抗扭强度及材料韧性指标研究［J］。

Professional management of various oil machinery and equipment for oil fields, wells, mines and other industrial building supply various models of the three cone bit, PDC drill, drill pipe, fishing tool.

专业经营各种石油机械设备，为油田，水井，矿井等工业建设供应各种型号三牙轮钻头，PDC钻头，钻杆，打捞工具。

Because there will always be a wellbore casing, but also no longer have to play under the drill pipe within the wellbore swabbing the role, to improve the well control situation.

因为井筒内始终有套管，也不再有起下钻杆时向井筒内的抽汲作用，改善了井控状况。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。