| ZJ90/6750DB Rig |
| Author：管理中心
Source： Release date：2015-3-18 Clicks：1800 |
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Rig adopts double motors drive single shaft Ⅱshift AC frequency conversion Drawworks, realize double stages stepless speed regulation. Equipped with 3 sets of high pump pressure triplex mud pump F - 1600 ，1 set 495 rotary table，and integration of driller control room, electric drive control system adopts Siemens PLC and AC frequency conversion technology, has fault self-diagnosis function and drilling remote diagnosis and control software interface.
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1. The vector frequency conversion control of electric drive control system realizes the fully digital control operation, reserved interface for remote fault diagnosis expert system can realize the collection of control parameters and drilling parameters (signal), display, storage, printing, remote monitoring and management.
2. Drawworks adopts with double motor drive, and can drive control separately, power reserve factor is large, the equipment efficiency and safety are high.
3. 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.
4. Operation control system using dual PLC redundancy design, improve the reliability of the system.
5. Mud purification circulation system design is scientific, F - 1600 high pressure mud pump can improve drilling speed, ensures the bit reliable high-speed rotation, pro-long the service life of the drill bit and improve drilling efficiency.
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Technical diameter
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Nominal drill depth (114mmDP)
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6000～9000m
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Rotary table open
nomina diameter
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Φ1257.3mm
(49.5” )
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(127mmDP)
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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 hight
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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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Ktype, 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（dia）×52MPa
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Rotary table shift Qty
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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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