Slickline · Intervention
Slickline Unit
A unit with a winch drum that runs a thin, single strand, nonelectric wire into a live well.
What it does
Places and retrieves plugs, gauges and valves, including valves in side pocket mandrels, and shifts sleeves. The wire passes through a stuffing box and pressure control equipment, so work is done safely on a pressurized well.
Basics
| Line | Single strand wire, no conductor |
| Works on | Live wells through a lubricator |
| Typical jobs | Plugs, gauges, valves, sleeves |
Common failures
- Tool string lost in the well
Troubleshooting
- Symptom
- Tools left in the hole
- Likely cause
- Wire or tool failure
- What to check
- Plan a fishing run, starting with an impression block