Yearly Archives: 2022

Upset tubing, as the name suggests, is to thicken the tubing to make the tubing more robust and durable. The thickness of a standard pipe is not increased randomly. Increasing randomly may cause crack...

How to prevent well casing pipe damage? How to repair well casing to restore its production? These are important questions in the development of oil field. Causes of well casing pipe damage: Improper...

Causes of welding deformation of thin steel plate: 1. Analysis of welding deformation Welding uses heat to connect two workpieces, but the heat will cause welding thermal deformation of ...

The internal and external anti-corrosion practices of spiral steel pipes (SSAW) should meet the requirements of the design institute and the owner. Generally, the internal and external anti-corrosion ...

The three-layer polyethylene (3PE) anticorrosive coating has been widely used in the petroleum pipeline industry due to its good corrosion resistance, water vapor permeability resistance and mechanica...

Spiral steel pipe(SSAW) is also called spiral welded pipe. It is made by rolling low-carbon structural steel or low-alloy structural steel strip according to the angle of the spiral line (forming angl...

Straight seam steel pipes are steel pipes whose welds are parallel to the longitudinal direction of the steel pipe. Usually pided into metric electric welded steel pipe, electric welded thin-walled pi...

Welding residual stress is the temperature difference inside the weldment caused by the heating and cooling process during welding, which leads to inconsistent deformation and internal stress. Welding...

3PE anticorrosive steel pipe base materials include seamless steel pipes, spiral steel pipes and straight seam steel pipes. The three-layer polyethylene (3PE) anticorrosive coating has been widely use...