R780 Water Well Friction Weld DTH Drill Rods/ Drill Pipes
The drill pipe is a steel pipe with a thread at the tail, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device located at the bottom end of the drilling well. The purpose of the drill pipe is to transport the drilling mud to the drill bit, and together with the drill bit to raise, lower or rotate the bottom hole device. The drill pipe must be able to withstand huge internal and external pressures, twists, bends and vibrations.
Our R780 Water Well Friction Weld DTH Drill Rods/ Drill Pipes are produced by CNC machine, and choose high grade steel material through heat treatment of the steel tube & thread joint to improve the steel material strength and insurance the thread wear life. Our R780 Water Well Friction Weld DTH Drill Rods/ Drill Pipes can be generally widely used in the projects of water well drilling, geothermal well drilling, coal mining, water conservancy & hydropower, highway, railway, bridge and building construction etc.
Available Specification R780 Water Well Friction Weld DTH Drill Rods/ Drill Pipes |
Outer Diameter | Wall Thickness | Thread Connection | Working Length |
inch | mm | mm | pin & box | meter |
1-2/3 | 42 | 5.5 - 8 | N Rod | 0.5m - 3m |
2 | 50 | 5.5 - 8 | N Rod | 0.5m - 3m |
2-1/2 | 63.5 | 5.5 - 8 | N Rod | 0.5m - 3m |
2-7/8 | 73 | 5.5 - 8 | N Rod | 1m - 9m |
3 | 76 | 5.5 - 8.5 | API 2- 3/8" REG | 1m - 9m |
3-1/2 | 89 | 5.5 - 8.5 | API 2- 3/8" REG | 1m - 9m |
3-3/4 | 95.25 | 5.5 - 8.5 | API 2- 3/8" REG | 1m - 9m |
3-7/8 | 98.4 | 5.5 - 8.5 | API 2- 3/8" REG | 1m - 9m |
4 | 102 | 6.5 - 8.5 | API 3-1/2" REG | 1m - 11m |
4-1/2 | 114 | 8 - 10 | API 3-1/2" REG | 1m - 11m |
5 | 127 | 8 - 10 | API 3-1/2" REG | 1m - 11m |
5-1/2 | 139.7 | 8 - 10 | API 4-1/2" REG | 1m - 6m |
5-3/4 | 146 | 8 - 10 | API 4-1/2" REG | 1m - 6m |
6 | 152 | 8 - 10 | API 4-1/2" REG | 1m - 6m |
6-1/4 | 159 | 8 - 10 | API 4-1/2" REG | 1m - 6m |
7 | 178 | 10 - 12.7 | API 4-1/2" REG | 1m - 6m |
1. The other specification drill rods are available upon request.
2. Kinds of Thread: B.S., API REG, API IF, BECO or produce as customer's requirement. |
