HEAVY WEIGHT DRILL PIPE

TIANHE HWDP is made from one-piece AISI 4145H modified quenched and tempered steel. It is designed for tough drilling environment in vertical and directional wells. TIANHE HWDP is a transition member between drill collar and drill pipe. For directional holes HWDP provides weighton-bit and additional stiffness to prevent buckling.

Features and Benefits 

● A center upset or wear pad to increase tube life, reduce hole drag and differential sticking problems; 

● Connections are completed (phosphate coated) to protect them from the elements after machining and to help prevent galling upon initial make-up; 

● Thread roots are cold rolled on API and H-90 connections. And pressed steel thread protectors are supplied for standard connections; 

● Hardbanding and internal coating can be provided on customer’s request.