Introduction of the Drill Rods
Seamless alloy steel pipes are made into drill pipes after several processing steps. First of all, through the processing of the steel pipe thickening process, the outer surface of the light pipe is bent inward, and the wall of the steel pipe is thickened. The next step is threading and plating with copper for strength. A non-destructive quality control inspection is then carried out, followed by welding of the steel pipe body joint. Then, the tube undergoes a welding heat treatment and a welding finish to eliminate welding residual stress. Several other tests are performed on the finished steel pipe before painting and packaging the finished drill pipe, including hardness testing, pressure testing and non-destructive testing.
The drill pipe is a steel pipe with ribbing at the end, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of drill pipe is to transmit torque, transport drilling fluid, connect and increase drill string, deepen wellbore to achieve normal drilling, etc. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. During the construction of the drilling rig, the drill pipe can be used many times.
