Products: Drill Pipe, Heavy Weight Drill Pipe
Size: 2-3/8"--6-5/8"
Standard: API 5DP
Grade: E75, X95, G105, S135, SS-105
Length: Range 1, Range 2 or 3
Upset of Drill Pipe
Internal-External Upset IEU
Products: Drill Pipe, Heavy Weight Drill Pipe, Drill Collar
Size: 2-3/8"--6-5/8"
Standard: API 5DP
Grade: E75, X95, G105, S135, SS-105
Length: Range 1, Range 2 or 3
Upset of Drill Pipe
Internal-External Upset IEU
Drill Pipe Dimensional Range and Performance Properties
Thedrill pipeis a steel pipe with threads at the end, which is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or the bottom hole device at the bottom 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. Drill pipe must be able to withstand enormous internal and external pressure, twisting, bending and vibration. In the process of oil and gas extraction and refining, the drill pipe can be used many times.
The length of the drill pipe is generally about nine meters, and it is divided into three categories: kelly, drill pipe and weighted drill pipe. The connection sequence is kelly (1 piece) + drill pipe (n pieces, determined by the well depth) + heavy drill pipe (n pieces, determined by the design of the drilling tool assembly).
Plain and raw steel pipe is made into drill pipe after several processing steps. First, through the steel pipe thickening process, the outer surface of the bare pipe is bent inward, and the steel pipe wall is thickened. Next, it is threaded and plated with copper for added strength. Non-destructive quality control inspections are then performed, followed by welding of the steel pipe body joints. Then, the pipe will undergo welding heat treatment and welding final treatment to eliminate welding residual stress. Before the finished drill pipe is painted and packaged, other tests are carried out on the finished steel pipe, including hardness test, pressure test and non-destructive test.