A new production oil well of more than 4460 meters depth was built in Yamal-Nenetsk Autonomous region

A new horizontal oil well of more than 4460 meters depth was built in Yamal-Nenetsk Autonomous region. A drilling rig ZJ-50 DBS equipped with a top drive DQ70BS-JH was used for this purpose. A top drive field service support was provided by SLC service engineers working 24 hours 7 days a week under service agreement with a drilling company.

DQ70BS-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 422 hp each. This allows to perform drilling with a smooth shaft speed changes in the range from 0 to 220 rpm and with a working torque of up to 55 kNm.