Dongfeng Drill Pipe Products

Petroleum casing is an important equipment for oil drilling. The thread surface of oil casing and coupling should be smooth. Burrs, tearing and other defects sufficient to cause thread interruption to affect strength and tight connection should not be allowed Company Hebei Borun Petroleum Pipe ...

Definition : drill pipe is hollow, thin-walled, steel or aluminium alloy piping used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the hole through the bit and back up the annulus. Manufacturer process : Modern drill pipe is made from the welding of at least three ...