Technical characteristics
| BU-320 DS | BU-450 DS | |
| Critical hook load, kN (tnf) | 320 | 450 |
| Conditional drilling depth, m | 5000 | 6500 |
| Drill-pipe stand lenght, m | 25-27 | 25-27 |
| Drive type | diesel | diesel |
| Derrick type | open-front derrick | open-front derrick |
| Derrick height, m | 46 | 46 |
| Drill floor height, m | 8,3-8,8 | 9,2 |
| Drilling line diameter, mm | 32 | 35 |
| Hardware of the block and tackle | 6х7 | 6х7 |
| Drawworks | BL-1200/D-4 | BL-1600/D-4 |
| Drawworks power, kW | 1200 | 1600 |
| Swivel | UV-320МА | UV-450МА |
| Load capacity, tnf | 320 | 450 |
| Rotary system | R-700 | R-950 |
| Rotary drive power, kW | 440 | 440 |
| Diameter of the hole in the rotary table, mm | 700 | 950 |
| Mud pump | UNBT-950А | UNBT-1180L |
| Mud pump power, kW | 950 | 1180 |
| Maximum pump flow rate, l/s | 46 | 51,4 |
| Maximum pressure developed by the pump, MPa | 32 | 35 |
