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Home » Pressroom » News Archive » 2017 » A top drive DQ50BQ-JH was used for drilling a new horizontal oil-well of more than 4300m depth in Yamal-Nenetsk Autonomous region

A top drive DQ50BQ-JH was used for drilling a new horizontal oil-well of more than 4300m depth in Yamal-Nenetsk Autonomous region

31.07.2017

A new fishbone oil-well of more than 4300 meters depth was built in Ety-Purovskoe oilfield in Yamal-Nenetsk Autonomous region. A drilling rig Uralmash 3900/225 EK equipped  with a top drive DQ50BQ-JH was used by NaftaGaz Drilling company professionals to build this complex oil-well . A non-stop top drive performance was provided by SLC service engineers working 24 hours a day 7 days a week with a drilling crew under service agreement with NaftaGaz Drilling company.

The DQ50BQ-JH as well as DQ50B-JH is the most popular top drive model among drilling companies.  It allows to build fishbone oil-wells of up to 5000 meters depth (using drilling 144mm tubes) as quickly as possible. The top drive is equipped with an asynchronous frequency controlled electric motor of 600hp power. This allows drilling with a smooth shaft speed changes in the range from 0 to 180 rpm and with a working torque of up to 48 kNm.