China's drill pipe production began in 1990s, and drill pipe production generally includes three parts: pipe end thickening, tool joint processing, friction butt welding and subsequent processing....

In order to do good, it is necessary to benefit from the development of equipment and tool technology. Petroleum drilling is the process of getting through the surface and oil and gas passages, includ...

The production technology mainly includes:Tube thickening process. In order to ensure the overall strength of the drill pipe, it is necessary to increase the thickness of the wall before welding. Ther...

In recent years, horizontal well, deep well and ultra deep well, large displacement well and special well have been increasing year by year. The drilling rod in the traditional sense can not fully mee...