Mobile drilling rigs are designed for drilling oil and gas exploration and production wells using a rotary method or downhole motors, drilling depth up to 4200 m, with a maximum hook load of 225 tons, at an ambient temperature from -50 ºС to +60 ºС. The units are mounted on special chassis.
Specifications
| Type | DR 225/4200 ME |
| Drilling depth, m | 4200 |
| Maximum hook load, kN | 2800 |
| Hook speed, m/sec | 0.2~1.5 |
| Derrick height, m | 36/38 |
| Derrick type | Pole |
| Engine type | АВВ |
| Transmission mode | AC with frequency variation |
| Trolley system (reeving) | 5×6 |
| Diameter of main cable rope, mm | Ø32 |
| Hook block type | YG250 |
| TDS | TDS250E |
| Rotor type | RT275 |
| Chassis type | 14×8 |
| Approach angle/departure angle | 26°/28° |
| Maximum duct angle | 26% |
| Minimum swinging radius, m | 41 |
| Movement dimensions, m | 22.3x3x4.48 |
| Main machine weight, kg | 80000 |
| Weight of attached facilities, kg | 82000 |