1500HP skid-mounted oil drilling rigs (ZJ50/3150DB) adopt swing up substructure and K type mast, one time stringing leads to continuous raising.
The double motors and single transmission drive single shaft two shifts AC frequency conversion drawworks, which can realize double stages stepless speed regulation and improve the equipment reliability.
Electric drive control system of skid-mounted oil drilling rigs adopt Siemens PLC and AC frequency conversion technology, which has the characters of high mechanical efficiency and high control precision.
The whole rig control system of mobile oil rigs adopts the heat backup mode which is compatible and fault-tolerant.
Its two sets of supporting F-1300 triplex cylinder mud pumps can improve drilling speed, ensure the bit reliable high-speed rotation, prolong the service life of the drill bit and improve drilling efficiency.
Features
1. 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 oil drilling rigs are more simplified on structure.
2. Equipment of mobile oil rigs is installed at low position and integrated hoist,which reduces the workload of aerial work and improves the safety.
3. Electric transmission adopts vector frequency conversion drive system and realizes the fully digital control operation.
4. The reserve interface for remote fault diagnosis expert system of skid-mounted oil drilling rigs can realize control parameters and drilling parameters (signal) collection, display, storage, print remote monitoring and management.
5. Enlarging the parameter range of bit pressure, drilling rate, pump pressure and pump capacity realizes the high precise control and improves drilling crafts. With the adoption of frequency conversion technology, the winches are suspended which change the traditional way of driller operation.
6. The operation control system of 1500HP skid-mounted oil drilling rigs adopts dual PLC design and improves the reliability of the system.
Parameters
Parameters of 1500HPSkid-Mounted Rig
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Nominal drilling depth
(114mm DP)
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3500~5000m
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Open diameter of rotary table
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φ952.5mm (37.5”)
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(127mm DP)
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2800~4500m
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Qty.× power of diesel engine
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3×1080kW
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Max. hook load
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3150kN
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Shift of drawwork
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stepless speed
regulation
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Traveling system
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6×7
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Height of drilling floor
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9m
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Dia. of Drill line
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φ35mm
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Mast model and height
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K type, 45m
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Qty.× power of mud pump
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2×1300hp
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Drawworks power
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1100kW (1500hp)
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Transmission type
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AC-VFD-AC
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Mud high pressure manifold
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Φ102mm (dia) ×35MPa
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Shift of rotary table
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1 shift stepless speed regulation
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s Effective capacity of mud tank of
solid control system
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≥320m3
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