Drill Pipe Profile

A steel pipe with a threaded end is used to connect the surface equipment of the drilling rig to the drilling and grinding equipment or bottom hole equipment 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. Drill pipe is divided into three categories: kelly pipe, drill pipe and weighted drill pipe. The connection sequence is kelly pipe (1 piece)+ drill pipe (n pieces, determined by the well depth)+ weighted drill pipe (n pieces, determined by the drill assembly design). The classification of drill pipe, joint of drill pipe, specification of drill pipe, steel grade and strength of drill pipe are introduced in detail.