Major features:
On the basis of common mechanical rig, driving of RT and DW is separated, and RT is driven by an independent AC VF motor. RT rev, torque and mud pump stroke can be adjusted separately as per drilling technology, which provides precondition and guarantee for drilling technology optimization and auto-bit-feeding realization.
RT and auto-bit-feeding both adopt all-digital auto control technique, which make the performance of the rig under drilling condition get close to digital-control electric VF rig; 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.
Main technical parameters:
1 |
Nominal drilling depth |
7000m （ 114mmDP ） |
9 |
Quantity and power of drilling pump |
2× 1600 hp pump |
6000m （ 127mmDP ） |
10 |
Substructure type |
Block package type |
Swing up type |
2 |
Max hook load |
4500kN |
11 |
Substructure height and clear height under RT beam |
9m / 7.6m |
10.5m / 9m |
3 |
Wire rope system of traveling system |
6 × 7 ， parallel |
12 |
Mast type and effective height |
K TYPE ， 45m |
4 |
DW rated power |
1470 kW （ 2000hp ） |
13 |
Transmission mode |
hydraulic transmission and chain paralleling +AC-VFD-AC |
5 |
DW gear |
4 gears |
6 gears |
14 |
Quantity/power of main diesel engine |
3 × 810kW |
4 forward+ 2 reverse |
6 forward+ 2 reverse |
15 |
Quantity/power of auxiliary generator set |
3×400kW |
6 |
Diameter of drilling wire rope |
φ 38mm |
16 |
Quantity and power of VF motor |
1×600kW+1 × 45kW |
7 |
RT opening diameter |
950mm （ 37 1/2″ ） |
17 |
HP mud manifold |
φ 102mm （ bore diameter ） ×35MPa |
8 |
RT gear |
1 gear |
2 gears |
18 |
Effective mud volume of solid control system |
430m3 |
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