Definition - What does Plunger Lift mean?
Plunger Lift is an artificial lift method used to remove unnecessary streams of water, mist, sand, oil or wax from a productive natural gas well. In order to deliquefy the natural gas the Plunger Lift opens and closes the shutoff valves of the natural gas well at optimum times. This is done so as to bring up the contaminants to the wellhead and maximize the production natural gas.
Petropedia explains Plunger Lift
The Plunger Lift unit comprises of following components:
- Plungers to create a mechanical seal in the wellbore
- Upper and Lower bumper springs
- Lubricators (to provide lubrication during lift operations)
- Downhole accessories (such as plungers, slicklines and wireline)
- Surface controls (Human machine interface)
- Analysis software (to analyze the seal efficiency, pressure, amount of gas and fluids produced)
With the help of the analysis software, open and close cycles of the Plunger Lift system are operated which measure the pressure in the wellhead and intelligently allow a reactive control of shutoff valves based on pressure.
The Plunger is the most important component in the Plunger Lift System. Inside the wellbore, the plunger creates a mechanical seal between the gas pressure in the annulus and the fluid in the tube which allows the fluid to be sucked up to the surface.