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Quality requirements of seamless steel pipes in production: 1. Chemical composition The chemical composition of steel is one of the most important factors affecting the performance of seamless steel ...

The material and type of casing pipe should be selected according to the drilling structure design and engineering needs. Deep-hole core drilling has a long construction period and a large casing dept...

The basic situation of API standard tubing and casing thread connection: The API standard threaded connection of tubing and casing in petroleum special pipes consists of two parts: pipe or male end a...

Welding seam is an important indicator of the quality of welded pipes (SSAW/LSAW/ERW) and is the life of welded pipes. Therefore, the analysis and treatment of welded section quality defects should be...

Common problems in the removal process of internal burrs include eccentric, deep, shallow, etc., which of them will affect the quality of weld detection and reduce the yield of welded pipes. In partic...

In the rolling process of seamless steel pipes, especially precision seamless steel pipes, the pickling process is very important to remove the oxide scale and rust on the surface. How is pickling per...