Mobile drilling rigs of the DR model are designed for drilling oil and gas exploration and production wells using a rotary method or downhole motors, drilling depth up to 2500 m, with a maximum hook load of 140 tons, at an ambient temperature from -50 ºС to +60 ºС . The units are mounted on special chassis.
Specifications
| Type | DR 140/2500 ME |
| Drilling depth, m | 2500 |
| Maximum hook load, kN | 1770 |
| Hook speed, m/sec | 0.2~1.5 |
| Derrick height, m | 35 |
| Derrick type | Pole |
| Engine type | ABB |
| Transmission mode | AC with frequency variation |
| Trolley system (reeving) | 4×5 |
| Diameter of main cable rope, mm | Ø29 |
| Hook block type | YG150 |
| TDS | TDS175E |
| Rotor type | RT205 |
| Chassis type | 12х8 |
| Approach angle/departure angle | 26°/28° |
| Maximum duct angle | 26% |
| Minimum swinging radius, m | 38 |
| Movement dimensions, m | 20.5×2.85×4.5 |
| Main machine weight, kg | 58000 |
| Weight of attached facilities, kg | 65000 |