This used 1500HP SCR electric drilling rig for sale is a solid mid-depth drilling solution designed for operators working in the 3,500–5,000 meter range. Manufactured in 2012, this rig (Model ZJ50D / 3150kN) features a full SCR electric drive system and core components produced in China, ensuring stable performance and proven reliability in field operations.
With a maximum static hook load of 3150 kN, a 45-meter mast, and a complete electrical power and control system, the rig is well-suited for medium-depth onshore drilling projects where consistent hoisting capacity and controllable power delivery are required. Its configuration supports efficient drilling operations while maintaining compatibility with standard well-control and mud-circulation systems.
Important condition notes should be carefully reviewed before purchase: the original 350-ton top drive system (TDS) is damaged and currently unavailable. In addition, the rig skidding system is damaged. A new skidding system can be supplied and installed at an additional cost of USD 110,000. These conditions are fully disclosed to support transparent evaluation and project planning.
Basic Parameters
| Item | Specification |
| Rig Model | ZJ50D / 3150kN |
| Year of Manufacture | 2012 |
| Rated Drilling Depth | 3,500 – 5,000 m |
| Drive System | SCR Electric Drive |
| Maximum Static Hook Load | 3150 kN |
| Manufacturing Origin | China |
Mast & Substructure
| Item | Specification |
| Effective Mast Height | 45 m |
| Racking Capacity | 28 stands of 5″ drill pipe |
| Rotary Beam Static Load | 3150 kN |
| Clear Height (Floor to Rotary Beam) | 7.62 m |
| Setback Capacity | 1800 kN |
| Crown Block Rating | 3150 kN, 7 sheaves |
Drawworks & Hoisting System
| Item | Specification |
| Drawworks Power | 1500 HP |
| Drawworks Drive | 2 × 800 kW DC motors |
| Max Fast Line Pull | 340–350 kN |
| Drilling Line Diameter | 35 mm (1 1/2″) |
| Traveling Block Hook Rating | 3150 kN |
Rotary & Well Control System
| Item | Specification |
| Rotary Table Size | 37-1/2″ opening |
| Rotary Table Static Load | 5850 kN |
| Swivel Load Rating | 4500 kN |
| Swivel Pressure Rating | 5,000 psi |
| BOP System | 13-5/8″, 5,000 psi (double ram + single ram) |
| BOP Control System | FKQ800-8, oil reservoir 1730 L |
Mud & Solid Control System
| Item | Specification |
| Mud Pumps | 2 × 1600 HP |
| Working Pressure | 5,000 psi |
| Mud Tank Volume | 5 tanks, total 250 m³ |
| Shale Shakers | 2 × ZHZS1180×70ZX |
| Desander / Desilter | ZQJ250×2 / ZQJ125×8 |
| Fuel Tanks | 1 active + 1 standby, 300 bbls each (min.) |
Power & Auxiliary Equipment
The rig is supported by a complete auxiliary system, including three JICHAI 190-series diesel generator sets and one 400 kW standby generator, providing reliable power redundancy. A full SCR control system with a dedicated power control house is included for centralized operation.
Handling tools include a comprehensive range of power tongs for tubing and drill pipe, a 350-ton elevator, and slips suitable for 5″ to 20″ casing. The package also includes an extensive inventory of fishing tools, such as 11-3/4″ and 8-1/4″ series 150 FS overshots with related accessories.
The available drill string inventory consists of approximately 2500 meters of 5″ drill pipe and 13 pieces of 6-1/2″ drill collars, supporting immediate deployment or project integration.
(Condition disclosures are provided in full for transparent evaluation. Additional details, pricing clarification, and inspection arrangements are available upon request.)
For more information, technical inquiries, or to arrange an inspection, please contact us. This used 1500HP SCR electric drilling rig for sale represents a practical opportunity for operators seeking a cost-effective, mid-depth drilling asset with a complete supporting system.
