Posts by wilson

Various impurities can be reduced into the production layer: after acidifying the conventional oil casing pipe, the wax, rust residue and adherent instruments in the pipe will be brought to the format...

What should you pay attention to when welding seamless steel tubes? 1. To prevent the back surface of the bottom bead from being oxidized when performing butt backing, gas back protection is also requ...

Oil casing pipe damage is one of the important factors affecting China's crude oil production. The reasons for its damage include non-uniform stress, corrosion, sand formation in oil layers, and high-...

The biggest difference between ERW steel pipe and seamless steel tube is that ERW has a weld seam, which is the key to the quality of ERW steel pipe. Modern ERW steel pipe production technology and eq...

1) Tube appearance inspection There are two kinds of raw material sources for casing tube blanks, one is seamless tube blank, and the other is ERW tube blank. The above blanks should be inspected as f...

Oil casing pipe in-plant inspection: defect handling Various defects found in the pipe body or pipe end that affect the performance of the pipe, such as pits, cracks, folds, bumps, bumps, gouges, d...

1. Gage length measurement The basic principle is: two fixed-length grating rulers are set on the outer sides of the two ends of the seamless steel tube, and the rod ruler is used to drive the grating...

Material analysis of 3PE anti-corrosive steel pipe 3PE anticorrosive steel pipe base material includes seamless steel pipe, spiral steel pipe and straight seam steel pipe. The three-layer structure po...

Straight seam steel pipe is a steel pipe with welds parallel to the longitudinal direction of the steel pipe. It is usually pided into metric welded steel pipes, welded thin-walled pipes, transformer ...

In recent years, anticorrosive steel pipes have begun to be widely used in the construction of water and natural gas pipelines. Anti-corrosion steel pipes are usually selected from spiral steel pipes....