Downhole · Jet Pump
Packer
A sealing element set between the tubing and the casing below the pump.
What it does
Isolates the well fluid entering the pump from the return in the annulus, so the jet can draw from below and discharge above.
Basics
| Used in | Single string installations returning up the annulus |
| Effect | The pump must handle all the well gas |
Common failures
- Packer leak that recirculates return back to the intake
Troubleshooting
- Symptom
- Production drops while power fluid rate and pressure are normal
- Likely cause
- Packer leak
- What to check
- Test the annulus and packer integrity