BPE API HEAVY WEIGHT DRILL PIPE

Heavy weight drill pipe includes weld HWDP and integral HWDP, are available from 2-7/8 inch to 6-5/8 inch complying with API 7-1 and NS-1. Integral HWDP is made from AISI 4145H, while weld HWDP uses AISI 4137 or 4145H for its tool joint and AISI 4130 for its pipe body. BPE can not only carry out the cold working of thread roots, phosphating on threads and break-in, but also process slip and elevator grooves, spiral groove, double shoulder and other premium connections. Hardbanding and internal coating can be provided. Heavy Weight Drill Pipe (short for HWDP) is an intermediate weight drill stem component which is used in conjunction with the drill pipe and drill collars. BPE HWDP is available in standard, spiral and non-magnetic designs. In some applications, heavy-weight also can be used instead of the drill collars. BPE Drill Collar has been approved by the NS-1 certification which is made from one-piece 4145H modified quenched and tempered steel. It designed for tough drilling environments in vertical and directional wells; for vertical wells, TIANHE HWDP is a transition member; for directional holes it is a weight member and provides additional stiffness to prevent buckling.

Features and Benefits
● A centre 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.