Specifications
1. Top Drive2.speed and torque accuracy control
3.with high anti-electromagnetic interference capability.
4.dual load path
Top Drive
Top Drive Drilling system is the equipment used to replace kelly and rotary table with power swivel and pipe handeler device, it can rotate the drilling pipe, screw and unscrew teh subs, and moce vertically along with the guide rail.
Top Drive can rotate drilling string directly from the upper derrick and drill downwards along with the guidance of guide rail. Top Drive can complete rotary drilling operation, mud circulation, pipe connection, make-up and break-out, back reaming and other drilling operations.
DQ120BSC specifications
Drive mode | AC VFD
| |
Nominal Drilling Depth
| 12000m (114mm drill pipe) | 39370ft (4 1/2" drill pipe) |
(API 8A/8C PSL1) Rated Load capacities | 9000kN | 1000ton(US) |
Power supply | 600VAC/50HZ (60 HZ optional) | |
Main Motor Rated Power (Continuous) | 440kW×2 | 600HP×2 |
Rotary Speed | 0~200r/min | |
Drilling Torque (continues) | 85kN·m | 62700lbf·ft |
Max. Torque of Break-out | 135kN·m | 99600lbf·ft |
Backup Tong Range | 87~250mm | 2 7/8"~6 5/8" (drill pipe) |
Hydraulic System Working Pressure | 16MPa | 2280psi |
Mud Circulating Diameter | 89mm | 3 1/2" |
Rated Circulating Pressure | 52MPa | 7540psi |
Main Body Working Height | 6.9m | 22.6ft |
Main Body Width | 2096mm | 6.88ft |
Distance of GUid Rail to teh Center of Well | 1090mm | 3.58ft |
