A new production oil well of more than 3170 meters depth was built for ROSNEFT company

A new controlled directional oil well of more than 3170 meters depth was built in Prirazlomnoe oil field in Khanty-Mansiysk Autonomous region for ROSNEFT company. A drilling rig Uralmash 4000/250  EK BM equipped  with a top drive DQ50BQ-JH was used for this purpose. 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 NaftaGas-Burenie company.

DQ50BQ-JH as well as DQ50B-JH is the most popular top drive model among drilling companies.  It allows to build fishbone 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 500hp 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.