Pump · Jet Pump
Throat
The short mixing tube just after the production inlet chamber, where the jet and the well fluid combine.
What it does
Transfers momentum from the power fluid to the produced fluid. By its end the two streams are fully mixed and moving fast.
Basics
| Also called | Mixing tube |
| Main risk | Cavitation at the throat entrance |
| Sized with | The nozzle, as a pair |
Common failures
- Cavitation erosion at the throat entrance
- Wear from sand
Troubleshooting
- Symptom
- Production stops rising with more power fluid
- Likely cause
- Cavitation at the throat
- What to check
- Raise intake pressure or change the nozzle and throat size