A new record of the Top Drive DQ70BSQ-JH20 июля 2017 года 20.07.2017
A new drilling speed record was achieved by Nefteugansk subsidiary of Rosneft Drilling company: 7 days were enough for Rosneft professionals to finish 3201m depth oil-well in Khanty-Mansiysk Autonomus region. An Uralmash 5000/320 EK-BMCH drilling rig equipped with the top drive DQ70BSQ-JH (№7058) was used for this purpose. This top drive is being used by Rosneft Drilling Company for 3,5 years demonstrating high performance and reliability.
DQ70BSQ-JH is one of the high performance models of top drives and provides drilling of the wells up to 7000 meters deep (with a 114 mm drill pipe). The top drive is equipped with two asynchronous frequency controlled electric motors with a power of 500 hp each. This allows to perform drilling with a smooth shaft speed changes in the range from 0 to 230 rpm and with a working torque of up to 65 kNm.