COMMAND-SMFI's Heavy Weight Drill Pipe (HWDP) features a tool joint pin and box and a thick-walled tube with a raised central section for wellbore protection of the tube. The central section comes in various designs; slick, spiral, full spiral, or tri-spiral. HWDP can be manufactured as a welded assembly or machined integral from bars. HWDP in the bottom-hole assembly (BHA) provide a gradual transition between drill pipe and drill collars. Its main function is to transfer surface weight-on-bit (WOB) and pipe rotation to the drilling assembly. It also mitigates drill string fatigue and provides directional control of the BHA. In addition, Heavy Weight Drill Pipe can be used to push or force liners/screens down hole during drilling operations.
Directional, Horizontal, and Extended Reach Drilling:
PRODUCT RANGE and FEATURES