| ZJ40/2250DB Rig |
| Author：管理中心
Source： Release date：2015-3-18 Clicks：1739 |
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ZJ40/2250DB rig adopts swing up substructure and K type mast, one time stringing can continuous raising, double motors and single transmission drive single shaft two shifts AC frequency conversion Drawworks, can realize double stages stepless speed regulation, improve the equipment reliability and operational economy. Electric drive control system adopts Siemens PLC and AC frequency conversion technology, which has the advantage of high mechanical efficiency and high control precision, the whole rig control system adopts the redundant heat backup mode, compatible, fault-tolerant performance is good; Supporting 2 sets of F - 1300 triplex cylinder mud pumps, can improve drilling speed, ensures the bit reliable high-speed rotation, prolong the service life of the drill bit and improve drilling efficiency.
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1. Give full play to the advantage of advanced digital AC frequency conversion electric transmission, and uses the machine, electricity, liquid, gas, digital control integration design, improve the control accuracy, simplifies the structure of drilling rig.
2. Equipment is installed at low position and hoisted as a whole，which reduces the workload of aerial work, and improve the safety.
3. Electric transmission adopts vector frequency conversion drive system, realize the fully digital control operation, reserve interface for remote fault diagnosis expert system, can realize control parameters and drilling parameters (signal) collection, display, storage, printing, remote monitoring and management.
4. Realize bit pressure, drilling rate, pump pressure, pump capacity to large range, high precision effectively control, greatly improve the drilling process. Using the characteristics of frequency conversion technology, make Drawworks hover at zero speed and change the traditional way of driller operation.
5. The operation control system adopts dual PLC redundancy design and improve the reliability of the system.
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Technical diameter
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Nominal drilling depth (114mmDP)
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2500～4000m
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Open diameter of rotary table
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φ700mm (27.5” )
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(127mmDP)
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2000～3200m
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Qty.× power of diesel
engine
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3×1000kW
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Max.hook load
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2250kN
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Shift of Drawworks
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stepless speed
regulation
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Traveling system
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5×6
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Height of substructure
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7.5m
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Dia of Drill line
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φ32mm
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Mast model and height
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Ktype, 43m
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Mud pump Qty ×power
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2×1300hp
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Drawworks power
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735kW（1000hp）
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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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Rotary table gear
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1 shift stepless speed
regulation
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mud tank effective
volume of solid control system
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≥180m3
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