Home page Operations Well drilling and workover

Well drilling and workover

LLC Rus Imperial Group is a part of Imperial Energy Group and is a 100%-owned subsidiary of ONGC VIDESH LIMITED, an overseas branch of ONGC, Indian national oil and gas company.

LLC Rus Imperial Group was founded in 2006 with the purpose of providing timely, high‑quality and cost-efficient oilfield services (mainly well drilling and workover) in Siberian region. To date, the company has drilled 116 wells, including 27 horizontal wells. The maximum ROP achieved is 1,068 meters per day; the fastest horizontal well (3,269 m) was drilled in 19.86 days, while the fastest directional well (3,080 m) took 10.63 days. The company has become one of the leaders in Siberia in terms of quality and efficiency of provided drilling and workover services.

Nowadays, oil production demands efficient services, and this demand keeps on increasing every year. The basis for development of oil industry today is geological exploration and discovery of new fields.

Complying with all the international requirements, meeting high-quality drilling and workover standards and possessing advanced equipment, LLC Rus Imperial Group nowadays provides services for Imperial Energy Group.

Starting 2014, LLC Rus Imperial Group and their contractors are engaged in drilling of wells using cutting-edge technologies, within the frameworks of innovative program of Imperial Energy to develop the Bazhenov suite and tight reservoirs.




  • Well completion, workover and servicing by WO crews;
  • Procurement and logistics;
  • Hydraulic fracturing in cooperation with LLC Imperial Frac Service;
  • Lease of modern drilling rigs RT50/3150LDB.



LLC Rus Imperial Group owns 3 drilling rigs and 3 workover rigs, as well as special vehicles and a mothballed coil tubing unit.



Characteristics of the drilling rigs:


Drilling rig name



Surface/with diesel drive/helicopter-transportable

Drill depth (m)

5 000

Hook load (tons)

315 (tested @ 336)


JC50-1 / 4 gears/ 1 100 kV

Power supply

5 diesel generators/ 2 800 kV

Mud pumps

3 x F-1300 / 3 x 956 kV / 35 MPa / Triplex

Top drive / Pressure

DQ70BSC / 35 MPa

Max load / Torque

75 kNm

Substructure height (m)



LLC Rus Imperial Group rigs are of modular type and require less time for transportation.