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Jet Pumps:Jet Pumps can be adapted to run in a wide variety of bottom hole cavities and down hole tools. The actual working components of the jet pump are the nozzle, throat and diffuser. These components are assembled in a variety of configurations
How the Jet Pump Works
Power fluid at high pressure (low velocity) is converted to a low-pressure (high velocity) jet by the nozzle. The pressure at the entrance of the throat becomes lower as the power fluid rate is increased. Due to this lower pressure, fluid is drawn in from the wellbore. The suction fluid becomes entrained with the high velocity jet and the pumping action then begins. After mixing in the throat, the combined power fluid and suction fluid is slowed down by the diffuser. Because the velocity is reduced, the pressure increases – rising to a value sufficient to pump the fluid to the surface.A full range of nozzle and throat sizes are available to allow power fluid rate and pressure to be varied to meet various requirements.