The on-site tests of 5 wells showed that the stiffness of lower drill pipeassembly was increased to control deviation in the straight hole.
经现场5口井试验表明，不弯曲钻铤能够起到增大下部钻具组合刚度，控制直井段井斜的作用；
2
Ltd and Wuxi Kipor Power Co. , Ltd, and so on. Products are included auto engine compression components, cooling water pipeassembly, auto beam, motorcycle compression components, and so on.
产品有汽车发动机冲压深拉伸件、冷却水管总成、汽车保险杠总成和摩托车冲压覆盖件等汽车、摩托车零部件。
3
The basic components of head, column pipe and bowl assembly are combined and customized to perfectly match individual duty needs.