Description
Heavy Weight Drill Pipe (HWDP) is an
intermediate weight drill stem component
which is used in conjunction with the drill
pipes and dril l collars. TIAnHE HWDPis
available in standard, spiral and non-
magnetic designs. In some applications,
heavy-weight drill pipes also can be used
instead of the drill collars.
Fengliang 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.
Fengliang HWDP is a transition member
between drill collar and drill pipe. For
directional holes HWDP provides weight-
on-bit and additional stiffness to prevent
buckling.
Specifications - Heavy Weight Drill Pipe
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
connections;
● Hardbanding and internal coating can be
provided
