Fluid driven commingling system for oil and gas applications

A fluid management system positioned in a wellbore for recovering a multiphase fluid having a carrier fluid component and an entrained fluid component from the wellbore, the fluid management system comprising:

• inlet tubing, the inlet tubing configured to receive the multiphase fluid, where the inlet tubing selected from the group consisting of tubing, piping, hose, or combination of the same;
• a downhole separator fluidly connected to the inlet tubing, the downhole separator configured to produce a carrier fluid and a separated fluid from the multiphase fluid, the carrier fluid having a concentration of the entrained fluid component, the carrier fluid having a carrier fluid pressure, the separated fluid having a separated fluid pressure;
• carrier tubing fluidly connected to the downhole separator, the carrier tubing configured to convey the carrier fluid from the downhole separator to an artificial lift device, where the carrier tubing is selected from the group consisting of tubing, piping, hose, or combination of the same;
• the artificial lift device fluidly connected to the carrier tubing, the artificial lift device configured to increase the carrier fluid pressure to produce a turbine feed stream, the turbine feed stream having a turbine feed pressure;
• turbine tubing fluidly connected to the artificial lift device, the turbine tubing configured to convey the turbine feed stream from the artificial lift device to the turbine, where the turbine tubing is selected from the group consisting of tubing, piping, hose, or combination of the same;
• the turbine fluidly connected to the turbine tubing, the turbine configured to convert fluid energy in the turbine feed stream to harvested energy,
• wherein conversion in the turbine of fluid energy from the turbine feed stream to harvested energy produces a turbine discharge stream, the turbine discharge stream having a turbine discharge pressure,
• wherein the turbine discharge pressure is less than the turbine feed pressure;
• and
• a coupling physically connected to the turbine, the coupling configured to transfer the harvested energy from the turbine to a pressure boosting device, the coupling selected from a mechanical coupling, hydraulic coupling, and magnetic coupling;
• fluid tubing fluidly connected to the downhole separator, the fluid tubing configured to convey the separated fluid from the downhole separator to a pressure boosting device, where the fluid tubing is selected from the group consisting of tubing, piping, hose, or combination of the same;
• the pressure boosting device, the pressure boosting device fluidly connected to the fluid tubing and physically connected to the turbine, the pressure boosting device configured to convert the harvested energy to pressurized fluid energy,
• wherein conversion of harvested energy to pressurized fluid energy produces a pressurized fluid stream having a pressurized fluid pressure,
• wherein the pressurized fluid pressure is greater than the separated fluid pressure;
• surface tubing fluidly connected to the pressure boosting device, the surface tubing configured to convey the pressurized fluid stream to the surface, the surface tubing is selected from the group consisting of tubing, piping, hose, or combinations of the same;
• and
• discharge tubing fluidly connected to the turbine, the discharge tubing configured to convey the turbine discharge stream to the surface.