JET PUMP
Is ahydrulic pump where the pump is transmited from the surface equipment to the
"subsurface pump by means of fluid called"power fluid
Concept of jet pump
Bernollws equation
There is an anverse proportion between P&V
There is an anverse proportion between P&V
Continvity equation
There is on inverse proportion between A&V
The jet pump installation may be
.gif "Jet pump artificial lift")
Free installion insid atubing
Fixed at the bottom of the tubing
Lower&lifted by wire line
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Surface equipment of jet pump
Power fluid tank
Surface pump
Manifold
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Sub surface equipment of jet pump
Nozzel
Throat or mixing tube
Diffuser
Production inlet chamber
note: the length of jet pump from 60-70 cm
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power fluid
May be oil or water
Advantage of using the water as apower fluid
Water is prefer from the safty&environmental point of view
Required lower surface pressure
Dis advantage of using the water as apower fluid
Additional cost due to chemicals addition to water to improve its properties mainly its lubricity
Advantage of using oil as apower fluid
Increase the pump life due to the oil viscosity
Reduce maintance jobs due to oil viscosity
If the well produce heavy viscous crude ,light oil may be used as apower fluid to mixed with heavey to facilitate its production and transportation
Dis advantage of using oil as apower fluid
When the oil is used as power fluid may cause some confusion in interpretation of the well test results,therfore the power
(fluid (in&out
should be accuratly measured to determine the actual production rate from the test
The operation depend on
High pressure of power fluid with low velocity which pass through nozzle which created very very high velocity and very very low pressure then mixed with production fluid (low
(velocity&increase pressure
which required to lifting the crude oil to the surface
Advantage and dis advantage of jet pump
Advantage of jet pump
Setting depth is limited
Can handle solids&corrosive fluids
Can be run in crooked holes due to it has small lengh &no moving parts
Can fits in all bottom hole assemblies
Applicable in off shore
Handle high production rate
Applicable to multiple completion
Can handle gassy production,low gravity and high pour point crude oil
Can use gas or electricity as apower source
Unobtrusive in urban location
Dis advantage of jet pump
Power oil system is fire hazard
Power fluid used is missing cost
Design system is more complex
Pump may be cavitate under acertain condition
Relatively inficient lift method
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power fluid
May be oil or water
Advantage of using the water as apower fluid
Water is prefer from the safty&environmental point of view
Required lower surface pressure
Dis advantage of using the water as apower fluid
Additional cost due to chemicals addition to water to improve its properties mainly its lubricity
Advantage of using oil as apower fluid
Increase the pump life due to the oil viscosity
Reduce maintance jobs due to oil viscosity
If the well produce heavy viscous crude ,light oil may be used as apower fluid to mixed with heavey to facilitate its production and transportation
Dis advantage of using oil as apower fluid
(fluid (in&out
should be accuratly measured to determine the actual production rate from the test
The operation depend on
High pressure of power fluid with low velocity which pass through nozzle which created very very high velocity and very very low pressure then mixed with production fluid (low
(velocity&increase pressure
which required to lifting the crude oil to the surface
Advantage and dis advantage of jet pump
Advantage of jet pump
Setting depth is limited
Can handle solids&corrosive fluids
Can be run in crooked holes due to it has small lengh &no moving parts
Can fits in all bottom hole assemblies
Applicable in off shore
Handle high production rate
Applicable to multiple completion
Can handle gassy production,low gravity and high pour point crude oil
Can use gas or electricity as apower source
Unobtrusive in urban location
Dis advantage of jet pump
Power oil system is fire hazard
Power fluid used is missing cost
Design system is more complex
Pump may be cavitate under acertain condition
Relatively inficient lift method