Drill Rod Pipe

Drill pipe is a steel pipe with indulge grain on the tail, which is used to connect the surface equipment of the drilling rig to the drilling and grinding equipment or bottom hole device located at the bottom of the drilling rig. The purpose of the drill pipe is to transport drilling mud to the bit and to raise, lower, or rotate the bottom hole device with the bit. The drill pipe must be able to withstand tremendous internal and external pressure, distortion, bending and vibration. In the process of oil and gas extraction and refining, drill pipe can be used many times.