Drilling rigs are designed for drilling oil and gas exploratory and production wells using a rotary method or downhole motors, drilling depth up to 4500 m, with a maximum hook load up to 250 tons, at an ambient temperature from -50 ºС to +60 ºС. Units are mounted on a trailer.
Specifications
| Type | DR 250/4500 SE | |
| Drilling depth, m | 4500 | |
| Maximum hook load, kN | 3150 | |
| Hook speed, m/sec | 0.2~1.5 | |
| Derrick height, m | 39 | |
| Derrick type | Pole | |
| Derrick floor elevation, m | 9 | |
| Type of e-engine | ABB | |
| E-engine capacity, kVt | 1250 | |
| Transmission mode | AC with frequency variation | |
| Trolley system | 5×6 | |
| Gyn type | JC50Е | |
| Mane brake | Disc | |
| Auxiliary brake | WCB324 | |
| Diameter of main cable rope, mm | 32 | |
| Hook block type | YG250 | |
| TDS | TDS250E | |
| Rotor type | RT275 | |
| Work pressure of hydraulic system, MPa | 14 | |
| Work pressure of air utility, MPa | 1 | |