2500HP Skid-Mounted Rig

2500HP skid-mounted drills (ZJ90/6750DB) adopt double motors to drive single shaft AC frequency conversion drawworks withⅡshift and it realizes double stages stepless speed regulation.
The skid-mounted drilling rigs are equipped with 3 sets of triplex mud pump F - 1600 with high pump pressure, 1 set 495 rotary table,and integrated driller control room. The electric drive control system adopts Siemens PLC and AC frequency conversion technology which has fault self-diagnosis function, drilling remote diagnosis and control software interface.


1. Electric transmission of 2500HP skid-mounted drills adopts vector frequency conversion drive system and realizes the fully digital control operation.
2. The reserve interface for remote fault diagnosis expert system can realize control parameters and drilling parameters (signal) collection, display, storage, print remote monitoring and management.
3. With the adoption of advanced digital AC frequency conversion electric transmission and the integration design of machine, electricity, liquid, gad and digital control, the skid-mounted drills are more simplified on structure.
4. The operation control system of 2500HP skid-mounted drilling rigs adopts dual PLC design and improves the reliability of the system.
5. The high pressure F-1600 mud pump can improve drilling speed and ensure the high speed rotation of bit. It prolongs the drill bit's longevity and drilling's working efficiency.


Parameters of 2500HP Skid-Mounted Rig

Nominal drill depth (114mm DP) 6000~9000m Rotary table open nominal diameter Φ1257.3mm (49.5”)
(127mm DP) 5000~8000m Diesel generator pcs×power 5×1200kW
Max. hood load 6750kN Drawworks gear shift stepless speed regulation
Travel system structure 7×8 Substructure height 10.5m,12m
Drill wireline diameter Φ42mm Mast type and height K type, 48m
Mud pump pcs ×power 3×1600hp Drawworks power 2210kW (3000hp)
Travel type AC-VFD-AC Mud high pressure manifold Φ102mm (diameter) ×52MPa
Rotary table shift quantity 1shift or 2 shifts stepless speed regulation Effective capacity of mud of solid system ≥600m3