The ZJ90 drilling rig series is a high-capacity land drilling solution with a maximum drilling depth of 9000 meters. It is primarily designed for oil and natural gas exploration and development in wells up to 6000–9000m (using 4 1/2” drill pipes) or 5000–8000m (using 5” drill pipes).
Key Features:
Major parameters, structural form, and design/manufacture standards comply with API, IEC, HSE, and other international specifications.
The rig’s systems and equipment use temperature-resistant components and air-cooled systems, enabling reliable operation in high-temperature, desert, and rainy conditions.
| Model | ZJ90/5850D/6750D | ZJ90/5850DB/6750DB |
|---|---|---|
| 4-1/2″ Drill Pipe (ft/m) | 19700–30000 / 6000–9000 | 19700–30000 / 6000–9000 |
| 5″ Drill Pipe (ft/m) | 16400–26250 / 5000–8000 | 16400–26250 / 5000–8000 |
| Max. Static Hook Load (lb/kN) | 1,300,000 / 5850 1,500,000 / 6750 |
1,300,000 / 5850 1,500,000 / 6750 |
| Max. Drill String Weight (lb/kN) | 640,000 / 2900 | 640,000 / 2900 |
| Max. Draw-Works Input Power (HP/kW) | 3000 / 2321 | 3000 / 2321 |
| Draw-Works Gear Selection | 4 forward + 4 reverse | Infinitely variable |
| Main Brake Type | Disc Brake | Dynamic Braking |
| Wire Rope Diameter (in/mm) | 1–5/8” / 42 1–3/4” / 45 |
1–5/8” / 42 1–3/4” / 45 |
| Maximum Hoisting System Ropes | 7×8 | 7×8 |
| Travelling Block Diameter (in/mm) | 60 / 1524 | 60 / 1524 |
| Rotary Table Opening Diameter (in/mm) | 49–1/2” / 1260 | 49–1/2” / 1260 |
| Rotary Table Drive Method | Independent Drive | Independent Drive |
| Derrick Effective Height (ft/m) | 153 (46.5) / 162 (49.5) | 153 (46.5) / 162 (49.5) |
| Substructure Height (ft/m) | 34.5 (10.5) / 39.4 (12) | 34.5 (10.5) / 39.4 (12) |
| Mud Pump Single Power (HP/kW) | 2200 / 1618 | 2200 / 1618 |
| Number of Mud Pumps | 3 | 3 |
| Total Mud Tank Capacity (bbl/m³) | 3900 / 590 | 4000 / 636 |