TOP-DRIVE DRILLING UNIT
The top-drive drilling unit can be specially used for the drilling operations of the directional wells, level wells, and can save auxiliary drilling time and increase drilling efficiency.
Parameter of TOP-DRIVE DRILLING UNIT
1、The top-drive drilling unit, with a compact structure and small size, it can be utilized for the truck-mounted drilling rig, onshore skid-mounted drilling rig and offshore drilling rig.
2、The top-drive drilling unit can be specially used for the drilling operations of the directional wells, level wells, and can save auxiliary drilling time and increase drilling efficiency.
3、The top-drive drilling unit with a simple and dependable transmission system will be driven by VFD and has a wide range of adjustable speed, which can be flexibly operated and is convenient for installation and maintenance.
4、The main loaded parts are made of special material and are heat treated to insure the excellent mechanical performance.
5、Safety and inspection measures are strengthened under the guidance of the design concept of “Humanism Above All” to meet the requirements of HSE.
| Model | DQ250 | DQ500 | |
| Nominal drilling depth(ft) | 5” DP | 6600~10000 | 13000~20000 |
| 41/2 “ DP | 8200~13000 | 15000~23000 | |
| Max hook load (lbs) | 562000 | 1124000 | |
| Max torque for main bearing (ft.lbf) | 36000 | 46000 | |
| Max buckle-dismantled torque (ft.lbf) | 50000 | 50000 | |
| Main bearing speed range (r/min) | 0~182 | 0~228 | |
| Suitable Mast Height (ft) | 108~141 | 148 | |
| Diameter of the center pipe (in) | 3 | 3 | |
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