The ZJ50 Skid-mounted Drilling Rig Series is designed for onshore oil and gas drilling operations, with a maximum drilling depth capability of 5000 meters. It is suitable for well depths of 3500–5000m (using 4-1/2″ drill pipe) or 2800–4500m (using 5″ drill pipe). The rig complies with international standards such as API, IEC, and HSE. Its systems and components are selected for high temperature resistance, and it utilizes air-cooling for enhanced operation in extreme conditions such as deserts, high temperatures, and heavy rainfall.
| Model | ZJ50/3150L | ZJ50/3150LDB | ZJ50/3150D | ZJ50/3150DB |
|---|---|---|---|---|
| 4-1/2″ Drill Pipe ft (m) 5″ Drill Pipe ft (m) |
11500~16400 (3500~5000) 9200~14800 (2800~4500) |
11500~16400 (3500~5000) 9200~14800 (2800~4500) |
11500~16400 (3500~5000) 9200~14800 (2800~4500) |
11500~16400 (3500~5000) 9200~14800 (2800~4500) |
| Max Static Hook Load lb (kN) | 700,000 / 3150 | 700,000 / 3150 | 700,000 / 3150 | 700,000 / 3150 |
| Max Pipe Weight lb (kN) | 350,000 / 1600 | 350,000 / 1600 | 350,000 / 1600 | 350,000 / 1600 |
| Max Input Power of Drawworks HP (kW) | 1500 / 1100 | 1500 / 1100 | 1500 / 1100 | 1500 / 1100 |
| Drawworks Speed | 4 forward + 2 reverse | 4 forward + 2 reverse | 4 forward + 2 reverse | Stepless speed regulation |
| Main Brake Type | Disc brake | Disc brake | Disc brake | Energy dissipation brake |
| Wire Rope Diameter in (mm) | 1-3/8″ (35) | 1-3/8″ (35) | 1-3/8″ (35) | 1-3/8″ (35) |
| Max Rope System | 6×7 | 6×7 | 6×7 | 6×7 |
| Traveling Block Diameter in (mm) | 50 (1270) | 50 (1270) | 50 (1270) | 50 (1270) |
| Rotary Table Opening Diameter in (mm) | 37-1/2″ (952.5) | 37-1/2″ (952.5) | 37-1/2″ (952.5) | 37-1/2″ (952.5) |
| Rotary Table Drive Mode | Chain drive | Independent drive | Independent drive | Independent drive |
| Derrick Effective Height ft (m) | 148 (45) | 148 (45) | 148 (45) | 148 (45) |
| Substructure Height ft (m) | 29.5 (9) | 29.5 (9) | 29.5 (9) | 29.5 (9) |
| Mud Pump Single Unit Power HP (kW) | 1600 / 1180 | 1600 / 1180 | 1600 / 1180 | 1600 / 1180 |
| No. of Mud Pumps | 2 | 2 | 2 | 2 |
| Total Mud Tank Capacity bbl (m³) | 2800 (450) | 2800 (450) | 2800 (450) | 2800 (450) |