drill pipe OD 3 1/2", wall thickness 0.368 inch, thread 2 3/8" mayhew regular, length 20 feet

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Drill Pipe and Heavy Weight Drill Pipe



BQ NQ HQ PQ NQWL BW size geological wireline drill rod drill pipe

Drill pipe is one of the necessary components to any drilling rig designed to extract oil or other liquid materials from the ground. The drill pipe is not used for extraction. Instead, the hollow tubes pump drilling fluids downward to the bit and back out again as needed to reduce friction and heat buildup. Drill pipe transferred drilling torque to drill bit for drilling under the oil well. It bears complicated strength subject to pulling, loading, pressing, torsion and bending. 

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