Heavy Weight Drill Pipe

SFMC HWDP, which provides the transition from drill collar to drill pipe, can easily solve problems arising in vertical holes in soft formation by replacing part of the drill collars.

The mechanical and chemical property of tools joints and central pipe are conformity to API Spec 7-1 latest edition.

The welding HWDP is assembly by tow pieces of tools joints and one piece of central pipe by inertial friction welding. The tools joints are manufactured from AISI 4145H or 4137H alloy steel and the central pipe is manufactured from AISI 1340 alloy steel.

SFMC offers both integral and welding heavy weight drill pipes. the integral HWDP is manufactured from one piece of AISI 4145H solid bar, fully heat treated,all physical properties conform to API Spec 7-1 latest edition.

China CNGC Shanxi Fenglei Machinery Drilling Co. (SFMC) is currently the largest specialized production base for Drill Pipe, Drill Collars, HWDP, Kellys in China.

SFMC's drill pipes are manufactured in according to or exceed the requirement of API 5D, 7 and RP7G.