Heavy weight drill pipe

Heavy weight drill pipe

Weighted drilling pipes are used for generating load on the bit and increasing the resistance of the bottom of the drill string.

Description

Against a background of endurance in bending

Model UBT The outer diameter Inner diameter Length
mm
The radius of fillets shoulder Against a background of endurance in bending
mm inch mm inch
NC23-31 79.4 3 1/8 31.8 1 1/2 9150 76.2 2.57:1
NC26-35(2 3/8 IF) 88.9 3 1/2 38.1 1 1/2 9150 82.9 2.42:1
NC31-41(2 7/8 IF) 104.8 4 1/8 50.8 2 9150 100.4 2.43:1
NC35-47 120.6 4 3/4 50.8 2 9150 114.7 2.58:1
NC38-50(3 1/2 IF) 127.0 5ong> 57.2 2 1/4 9150 121.0 2.38:1
NC44-60 152.4 6 57.2 2 1/4 9150&9450 144.5 2.49:1
NC44-60 152.4 6 71.4 2 13/16 9150&9450 144.5 2.84:1
NC44-62 158.8 6 1/4 57.2 2 1/4 9150&9450 149.2 2.91:1
NC46-62(4IF) 158.8 6 1/4 71.4 2 13/16 9150&9450 150.0 2.63:1
NC46-65(4IF) 165.1 6 1/2 57.2 2 1/4 9150&9450 154.8 2.76:1
NC46-65(4IF) 165.1 6 1/2 71.4 2 13/16 9150&9450 154.8 3.05:1
NC46-67(4IF) 171.4 6 3/4 57.2 >2 1/4 9150&9450 159.5 3.18:1
NC50-67(4 1/2 IF) 171.4 6 3/4 71.4 2 13/16 9150&9450 159.5 2.37:1
NC50-70(4 1/2 IF) 177.8 7 57.2 2 1/4 9150&9450 164.7 2.54:1