Drill pipe (Heavy-weight (HWDP))
Heavy-weight drill pipe 140 mm, bore 83 mm
Heavy-weight heavy-weight drill pipe (HWDP), diameter 140 mm, bore 83 mm. Manufactured from steel grade S135, providing high resistance to fatigue loading. Tool joint thread GOST Z-147 / API 5½ FH, upset OD 177.8 mm. Ideal for the transition zone of the drill string. When ordering, please specify the required length R1 / R2 / R3, bore and tool joint upset diameters for box and pin, as well as the delivery region.
Heavy-weight (HWDP)140 mm83 mmS135API Spec 7-1
| Type | Heavy-weight (HWDP) |
| Diameter (OD) | 140 mm |
| Steel grade | S135 |
| Bore (ID) | 83 mm |
| Tool joint OD | 177.8 mm |
| Length | R2 ≈ 9.1–9.5 m |
| Cross-section | Round |
| Thread protector | Metal |
| Standard | API Spec 7-1 |
| Condition | New |
| Thread type | GOST Z-147 (5½ FH) |
| Thread standard | API Spec 7‑2 |
| Thread direction | Right-hand |
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