Heavy Weight Drill Pipe
Grant Prideco heavy weight drill pipe provides a gradual transition between your drill pipe and drill collars.
Grant Prideco Standard HWDP Specifications
| Nominal Size | Spiral Upsets (in.) | Connection | Tool Joint OD × ID (in.) | Adjusted Weight (lb/ft and lb/jt**) |
2⅞* | 35/16 | NC 26 | 3⅜ × 1½ | 17.26 and 535 |
3½ | 4 | NC 38 | 4¾ × 21/16 | 25.65 and 795 |
3½ | 4 | NC 38 | 4¾ × 2¼ | 23.48 and 728 |
4 | 4½ | NC 40 | 5¼ × 29/16 | 29.92 and 928 |
4½ | 5 | NC 46 | 6¼ × 2¾ | 41.45 and 1,285 |
5 | 5½ | NC 50 | 6⅝ × 3 | 50.38 and 1,562 |
5½ | 6 | 5½ FH | 7¼ × 3¼ | 61.63 and 1,911 |
5½ | 6 | HT™ 55 | 7¼ × 3¼ | 61.63 and 1,911 |
5⅞ | 6⅜ | XT™ 57 | 7 × 4 | 57.42 and 1,780 |
6⅝ | 7⅛ | 6⅝ FH | 8 × 4½ | 71.43 and 2,214 |
*2⅞ in. HWDP is only manufactured as an integral (non-welded) design.
**Adjusted weight per joint (lb/jt) is based on 31 ft nominal length per joint.
Grant Prideco Tri-Spiral HWDP Specifications
| Nominal Size | Spiral Upsets (in.) | Connection | Tool Joint OD × ID (in.) | Approx. Weight Incl. Tube and TJs(lb/ft and lb/jt**) |
2⅞* | 35/16 | NC 26 | 3⅜ × 1½ | 18.22 and 565 |
3½ | 4 | NC 38 | 4¾ × 23/16 | 27.05 and 839 |
3½ | 4 | NC 38 | 4¾ × 25/16 | 24.88 and 771 |
4 | 4½ | NC 40 | 5¼ × 2⅝ | 31.51 and 977 |
4½ | 5 | NC 46 | 6¼ × 2⅞ | 43.31 and 1,343 |
5 | 5½ | NC 50 | 6⅝ × 31/16 | 52.34 and 1,623 |
5½ | 6 | 5 ½ FH | 7 ¼ × 35/16 | 63.78 and 1,977 |
5⅞ | 6⅜ | XT™ 57 | 7 × 4 | 57.42 and 1,780 |
6⅝ | 7 ¼ | 6⅝ FH | 8 × 4½ | 74.67 and 2,315 |
*2⅞ in. HWDP is only manufactured as an integral (non-welded) design.
**Approximate weight per joint (lb/jt) is based on 31 ft nominal length per joint.
Grant Prideco Spiral-Wate HWDP Specifications
| Nominal Size | Spiral Upset (in.) | Connection | Tool Joint OD × ID (in.) | Approx. Weight Incl. Tube and TJs (lb/ft and lb/jt**) |
33/16 | 35/16 | SLH90 | 3⅞ × 2 | 19.48 and 604 |
3½ | 4 | NC 38 | 4⅞ × 2¼ | 30.39 and 942 |
4 | 4½ | NC 40 | 5 × 29/16 | 28.90 and 896 |
4½ | 5 | NC 46 | 6¼ × 2¾ | 49.53 and 1,535 |
5 | 5½ | NC 50 | 6⅝ × 3 | 59.16 and 1,834 |
5½ | 6 | 5½ FH | 7 × 4 | 55.21 and 1,712 |
5⅞ | 6⅜ | XT™ 57 | 7 × 4 | 65.38 and 2,027 |
6⅝ | 7⅛ | 6⅝ FH | 8 × 5 | 73.40 and 2,275 |
33/16 in. Spiral-Wate (previously referred to as 2⅞ in.) is manufactured as integral only (non-welded).6⅝ in. Spiral-Wate is manufactured as integral or Submerge Arc welding.Performance properties for sizes 3½ through 5⅞ in. reflect those for inertia/friction-welded products.Sizes 3½ through 5⅞ in. can also be manufactured integrally for special purpose applications.**Approximate weight per joint (lb/jt) is based on 31 ft nominal length per joint.