PIM-CI – MRP-ESP/BHP

This patented completion system used in multi-reservoir production (MRP) includes PIM packer with cable inlet (CI) and two pumps (lower ESP and upper bottom-hole) for simultaneous production from two reservoirs through a single tubing string. The completion system provides independent operation of two pumps.

Applications:

• For cost reduction in multi-reservoir fields;
• Production wells with two different properties and significant differences in stratum depth;
• 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. 

BENEFITS

• Application of standard downhole and wellhead equipment;
• No additional tools and equipment are required due to ease of installation and high performance of the completion system;
• Possibility to conduct sequential control of recovered fluids from each reservoir;
• The completion is run and set in the well in two stages: (1) setting PIM-CI packer system with ESP and (2) running a bottom-hole pump (BHP);
• BHP is retrieved from the well by lift rods without packer and an ESP unit.