Yuan Pengbin

Three-dimensional mechanical analysis of the double-shouldered tool joint

Drilling tool with metal structure electronic recognition tag

Vertical-die-separation, horizontal-clamping, multi-die cavity forming horizontal drilling rod thickening hydraulic press

Forming method of drill pipe high station structure for rapid raising and dropping drill and drill pipe

Drilling tool with electronic identification tag

Warm extrusion forming process of internal thread joint of petroleum drill rod

Non-thickened connection type thick-wall drill rod

Thread tooth type drill pipe joint

Drilling rod capable of reducing friction and pressure and removing cuttings bed

High-torsion-resistance high pressure sealing tool joint used for oil gas drilling and production