1. Adopt swing up type of mast and substructure integral raising. Substructure, mast and all equipments are installed at low position and raised at one time by drawworks power, which is convenient for dismounting and has advantages of quick moving, integral movement and installation.
2. Diesel engine, hydraulic coupling and transmission box form a whole transport unit, installed on driving base at rear floor. The whole chain box is installed directly on the substructure at rear floor.
3. Rotary table speed, torque and mud pump stroke rate can be respectively adjusted according to the drilling process, providing the premise and guarantee to optimize the drilling process and automatic bit feeding.
Applications
ZJ70/4500LDB Rig,Land Drilling Rig,China Drilling Rig Supplier is a heavy-duty land drilling rig built for sustained drilling operations in onshore oil fields. Its skid-mounted design makes it a popular choice for operators drilling concentrated field blocks where rig moves are infrequent and ease of assembly matters more than road mobility.
- It is typically used for drilling 2,500 to 5,000 meter production wells, depending on the horsepower rating.
- Common applications include development drilling in mature onshore basins, exploration well drilling, and workover operations on deeper wells.
- Operators in the Middle East, Russia, and Central Asia often prefer skid rigs for their lower initial cost and simpler maintenance compared to complex truck-mounted rigs.
Field-Proven Design
Our skid rigs use AC variable frequency electric drive, which simplifies the power transmission system compared to older mechanical drive rigs. This design reduces moving parts, lowers maintenance requirements, and gives the driller finer control over hook load and rotary speed.
- The control system uses common industrial PLC components that are available worldwide.
- Drawworks and rotary table components are interchangeable with common API-spec drilling rig spares.
- Optional cold-weather packages are available for rigs operating in northern climates.
Parameters of ZJ70/4500LDB Rig
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Nominal drilling depth (114mm DP)
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4500~7000m
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Open diameter of Rotary table
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φ952.5mm (37.5" )
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(127mmDP)
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4000~6000m
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Qty.× power of diesel engine
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3×1060kW
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Max.hook load
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4500kN
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Shift of Drawworks
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4+2R
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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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φ38mm
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Mast type and height
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Ktype, 45.5m
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Qty.× power of mud pump
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2×1600hp
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Drawworks power
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1470kW(2000hp)
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