RT and auto-bit-feeding both adopt AC VF all-digital auto control technique, which make the performance of the rig under drilling condition get close to digital-control electric VF rig; but its cost is much lower. Driller operates the touch screen to fulfill drilling operation through optimized drilling parameters, which will reduce labor intensity significantly and improve work efficiency. Display, restoration, regulation and control, remote management of major drilling parameters can be realized.
4000m(114mmDP)
Nominal drilling depth
Substructure type
Block package type
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3200m(127mmDP)
Substructure height and clear height under RT beam
7.5m,6.3m
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Max hook load
2250kN
Mast type and effective height
K type,43m
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Wire rope system of traveling system
5×6,parallel
Transmission mode
hydraulic transmission and chain paralleling+AC-VFD-AC
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DW rated power
735kW(1000hp)
Quantity/power of main diesel engine
3×810kW
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DW gear
4 forward
4 forward+ 2 reverse
Quantity and power of auxiliary generator set
3×400kW
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Diameter of drilling wire rope
φ32mm
Quantity and power of AC motor
1×600kW+1×45 kW
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RT opening diameter
698.5mm(27 1/2″)
HP mud manifold
Φ103mm(bore diameter)×35MPa
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RT gear
One gear stepless speed regulation
Two gears stepless speed regulation
Effective mud volume of solid control system
260m3
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Quantity and power of drilling pump
2×1300hp