A new controlled directional oil well of more than 3580 meters depth was built in Samotlorskoe oil field in Khanty-Mansiysk Autonomous region

A new controlled directional oil well of more than 3580 meters depth was built by Rosneft-Burenie in Samotlorskoe oil field in Khanty-Mansiysk Autonomous region for ROSNEFT company. A mobile drilling rig ZJ-40CZ equipped  with a top drive DQ40B-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 Rosneft-Burenie company.

DQ40B-JH is an optimal choice for using with mobile drilling rigs. It allows to build fishbone oil wells of up to 4000 meters depth (using drilling 144mm tubes) as quickly as possible. The top drive is equipped with an asynchronous frequency controlled electric motor of  420hp power. This allows to drill with a smooth shaft speed changes in the range from 0 to 180 rpm and with a working torque of up to 33 kNm.