This patented remotely controlled completion system used in multi-reservoir production (MRP) includes two packers and ESP unit for simultaneous production from two reservoirs through a single tubing string. The completion system provides parameter measurement and flow control separately for each of the two fluid flows entering the section of an ESP.


  • For cost reduction in multi-reservoir fields and production wells penetrating reservoirs with different properties;
  • For tapping currently inactive reservoirs;
  • For solving problems associated with drawdown pressure limits or negative mutual interference between reservoirs;
  • For simultaneous production from multiple reservoirs with different physicochemical properties, production fluid characteristics, water cuts, gas-oil ratios, bubble-point pressures and temperatures. 


  • The entire completion, including controlled electric valves (CEV), is controlled in real time remotely or from Geonik’s control station;
  • Two-way communication to obtain fluid data from Telemetry units (TMU) with P, Q, C, T gauges and precise opening / closing regulation of electrovalves during operation of an ESP from Geonik’s dedicated telemetry system (TMS) or through power or logging cable by personal request*;
  • Dynamic testing of each reservoir during ESP operation with recording of pressure build-up curves by shutting in one of the reservoirs;
  • The completion is run and set in the well in two stages: (1) setting a two-packer system and (2) running 2CEVs with 2TMUs, and an ESP for connection to the two-packer system;
  • Real time management of each reservoir using downhole gauge and flow-meter data from CEVs and TMUs;
  • To change an ESP, the system is retrieved from the well without packers;
  • To wash downhole pumping equipment by reagent injection from the wellhead, both direct and reverse circulation can be performed;
  • No additional tubing used for production from multi-completion wells with hydraulic valves is required due to ease of installation and high performance of the completion system.


Item code Casing string, mm./in. CEV seat diameter,


Pressure differences at CEV,



Maximum T, /F Tubing thread diameter,




Nominal diameter Wall thickness TMU w/gauges TMS
MRP-2CEV-2TMU TMS-118 140/5.51 6-8/


12/0.47; 20/0.78 ⃰ 30/4351 120/248; 150/302 ⃰ 150/302 73/2.87 Oil

Associated gas

Gas Condensate

Natural gas

Formation water

146/5.74 9-11/


MRP-2CEV-2TMU TMS- 120 146/5.74 6,5-10/


12/0.47; 20/0.78 ⃰ 30/4351 120/248; 150/302 ⃰ 150/302 73/2.87
MRP-2CEV-2TMU TMS – 140 168/6.61 8-11/


12/0.47; 20/0.78 ⃰ 30/4351 120/248; 150/302 ⃰ 150/302 73/2.87
178/7 13-15/


MRP-2CEV-2TMU TMS – 145 168/6.61 7,3-8/


12/0.47; 20/0.78 ⃰ 30/4351 120/248; 150/302 ⃰ 150/302 73/2.87
178/7 11,5-12,7/


*by personal request.