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.
Features
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
Parameters of 2500HP Skid-Mounted Rig
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Nominal drill depth
(114mm DP)
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6000~9000m
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Rotary table open nominal diameter
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Φ1257.3mm (49.5”)
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(127mm DP)
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5000~8000m
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Diesel generator pcs×power
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5×1200kW
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Max. hood load
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6750kN
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Drawworks gear shift
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stepless
speed regulation
|
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Travel system structure
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7×8
|
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Substructure height
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10.5m,12m
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|
Drill wireline diameter
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Φ42mm
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Mast type and height
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K type, 48m
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Mud pump pcs ×power
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3×1600hp
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Drawworks power
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2210kW (3000hp)
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Travel type
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AC-VFD-AC
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Mud high pressure manifold
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Φ102mm (diameter) ×52MPa
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Rotary table shift quantity
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1shift or 2 shifts stepless speed
regulation
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Effective capacity of mud of solid
system
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≥600m3
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