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Figure 5.9 –Plunger Lift
When the plunger reaches the wellhead plunger catcher, the
valve opens and allows gas to flow freely for some time while new
liquid collects at the bottom. After some preset time the catcher
will release the plunger, and the cycle repeats.
Well workover, intervention and stimulation
After some time in operation, the well may become less
productive or faulty due to residue build up, sand erosion,
corrosion or reservoir clogging.
Well workover is the process of performing major
maintenance on an oil or gas well. This might include replacement
of the tubing, cleanup or new completions, new perforation and
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