Major features:
Driving of RT, DW and mud pump is independent, RT rev, torque and mud pump stroke can be adjusted separately as per drilling technology.
RT rev adjusting and DW auto-bit-feeding both adopt all-digital auto control technique, which makes 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.
Major parts as mast, substructure and drawworks etc can be placed on shifting guide rail, to perform cluster well drilling by cylinder shifting.
Main technical parameters:
1 |
Nominal drilling depth |
3000m （ 114mmDP ） |
10 |
Substructure type |
box-on-box type |
2500m （ 127mmDP ） |
2 |
Max hook load |
1700 kN |
11 |
Substructure height and clear height under RT beam |
4.5m / 3.58m |
3 |
Wire rope system of traveling system |
5x6 ， parallel |
12 |
Mast type and effective height |
K TYPE/ 42m |
4 |
DW rated power |
551kW （ 750hp ） |
13 |
Transmission mode |
hydraulic transmission and chain paralleling+ AC-VFD-AC |
5 |
DW gear |
4 gears |
14 |
Quantity/power of main diesel engine |
2 × 810 kW |
15 |
Quantity/power of auxiliary generator set |
3×400kW |
6 |
Diameter of drilling wire rope |
φ 29mm |
7 |
RT opening diameter |
520.7mm （ 20 1/2″ ） |
16 |
Quantity and power of VF motor |
1×300kW+1 × 22 kW |
8 |
RT gear |
One gear stepless speed regulation |
17 |
HP mud manifold |
φ 102mm （ bore diameter ） ×35MPa |
9 |
Quantity and power of drilling pump |
1× 1300 hp pump |
18 |
Effective mud volume of solid control system |
245m 3 |
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