Geological drill pipe is a geological alloy steel pipe by friction welding process design and production of geological drilling tools, geological drill pipe body using geological special alloy steel pipe (R780, DZ50), geological drill pipe joint using high-quality alloy structural steel (42CrMo) by real air conditioning quality treatment, greatly improve the fatigue strength and shear strength. The geological drill pipe is produced and processed by excellent friction welding technology. The drill pipe has the characteristics of high bending strength and solid welding, which can ensure the straightness requirement during deep hole drilling, and has high fatigue strength and long service life.

The drill pipe is a commonly used vulnerable tool in the drilling process, which requires users who often use the rig to know more about some relevant knowledge, we all know that the role of the drill pipe is very large, what role and characteristics of the drill pipe

Geological drill pipe action

The drill pipe is a steel pipe with indulge grain on the tail, which is used to connect the surface equipment of the drill rig to the drilling and grinding equipment or bottom hole device located at the bottom of the drill. The purpose of the drill pipe is to transport drilling mud to the bit and lift, lower, or rotate the bottom hole device. The drill pipe must be able to withstand enormous internal and external pressures, twisting strains, bending forces, and vibrations. The drill pipe can be reused during the mining and refining process.

Raw steel pipe and light pipe are made into drill pipe after several processing steps. First of all, through the processing of the steel pipe thickening process, the surface of the light pipe is curved inward, and the wall of the steel pipe is thickened. Next, the thread is machined and plated with copper to increase strength. Non-destructive quality control is then carried out, followed by the welding of the pipe body joint. The tube is then subjected to welding heat treatment and welding final treatment to eliminate welding residual pressure. Before the finished drill pipe is painted and packaged, the finished steel pipe is subjected to a number of other tests, including hardness testing, pressure testing and non-destructive testing. The length of the drill pipe is usually about nine meters.

Geological drill pipe characteristics

1. Spiral drill pipe cold-drawn molding blade, not annealed, good toughness, durable.
2. Long spiral drill pipe: cold-drawn molding blade, no annealing, good toughness, durable.
3. The drill pipe of the pile machine equipment is connected by inserting wire, which is convenient for disassembly and rapid, good sealing, high tensile strength and high quality of pile formation. Good verticality, easy to disassemble and install.