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Heavy Weight Drill Pipe (HWDP)
Heavy Weight Drill Pipe (HWDP) is an intermediate weight drill stem component
which is used in conjunction with the drill pipes and drill l collars. JX Petro HWDP is
available in standard, spiral and nonmagnetic designs. In some applications, heavy-weight drill pipes also can be used instead of the drill collars.
Our HWDP is made from one-piece AISI 4145H modified quenched and tempered steel. It is designed for tough drilling environment in vertical and directional wells. HWDP is a transition member between drill collar and drill pipe. For directional holes HWDP provides weight on-bit and additional stiffness to prevent buckling.
| Size (in) | O.D.(in) | I.D.(in) | Tool Joint O.D. (in) | Tool Joint I.D(in) | Thread | Max.elevator dia (in) | Central upset dia.(in) | Min.drift dia.(in) |
| 3-1/2 | 3-1/2 | 2-1/4 | 4-3/4 (4-7/8, 5) |
2-1/4 | NC38 | 3-7/8 | 4 | 2 |
| 2-1/16 | 2-1/16 | 1-13/16 | ||||||
| 4 | 4 | 2-1/2 | 5-1/4 | 2-1/2 | NC40 | 4-3/16 | 4-1/2 | 2-1/4 |
| 2-9/16 | 2-9/16 | 2-5/16 | ||||||
| 4-1/2 | 4-1/2 | 2-11/16 | 6-1/4 | 2-11/16 | NC46 | 4-11/16 | 5 | 2-7/16 |
| 2-3/4 | 2-3/4 | 2-1/2 | ||||||
| 2-13/16 | 2-13/16 | 2-9/16 | ||||||
| 5 | 5 | 3 | 6-5/8 | 3 | NC50 | 5-1/8 | 5-1/2 | 2-3/4 |
| 5-1/2 | 5-1/2 | 3-1/4 | 7 (7-1/4, 7-1/2) |
3-1/4 | 5-1/2 FH | 5-11/16 | 6 | 3 |
| 3-3/8 | 3-3/8 | 3-1/8 | ||||||
| 3-7/8 | 3-7/8 | 3-5/8 | ||||||
| 4 | 4 | 3-3/4 | ||||||
| 6-5/8 | 6-5/8 | 4 | 8 (8-1/4, 8-1/2) |
4 | 6-5/8 FH | 6-15/16 | 7-1/8 | 3-3/4 |
| 4-1/2 | 4-1/2 | 4-1/4 | ||||||
| 5 | 5 | 4-3/4 |
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