Surface · Plunger Lift
Lubricator & Catcher
A short section of pipe above the wellhead that receives the plunger at the end of each trip, with a spring loaded receiver and a catcher.
What it does
Stops the plunger out of the flow path so the gas can flow to the flowline. The catcher can hold the plunger at surface for inspection or replacement.
Basics
| Sits | Above the wellhead |
| Receiver | Spring loaded |
| Catcher | Holds the plunger at surface |
Common failures
- Worn receiver spring from fast arrivals
- Catcher that does not hold the plunger
Troubleshooting
- Symptom
- Damage at the top of the lubricator
- Likely cause
- Plunger arriving at high speed
- What to check
- Adjust the cycle to slow arrivals; inspect the spring