7000m DC electric drive rig
ZJ70/4500D Drilling module |
Main features of drilling rig：
Drawworks, rotary table and mud pump can realize stepless speed regulation independently, making drilling technology optimized.
Auto-bit-feed uses fully digital auto-control; driller can carry out drilling operation through touch screen at optimized drilling parameters, reducing labor intensity greatly, improving work efficiency; realizing display, memory, regulation and remote management of main drilling parameters.
Main technical parameters :
Nominal drilling depth |
7000m （ 114mm DP ） |
6000m （ 127mm DP ） |
Max. hook load |
4500kN |
Wire rope system of traveling system |
6x7 ， parallel |
DW rated power |
1470 kW （ 2000hp ） |
DW gears |
4 forward +4 reverse ， stepless speed regulation |
Diameter of drilling line |
φ 38mm |
RT opening dia. |
950mm （ 37-1/2″ ） |
RT gears |
1 gear, stepless speed regulation |
2 gears, stepless speed regulation |
Qty./power of drilling pump |
3× 1600 hp pump |
Derrick type and effective height |
K type ， 45m |
Derrick type ， 46m |
Transmission mode |
AC-SCR-DC |
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