NOV Tuboscope - Drill Pipe Selection Guide #Drill_Pipe Information Drill pipe is hollow, thick-walled piping that transmits drilling fluid and torque through the wellbore to the drill bit on a drilling rig.
Differences between Oil Casing Pipe and Oil Drill Pipe | CSCMP's Supply Chain Quarterly
drillpipe | Energy Glossary
Composite drill pipe, a new technology development