Downhole · Completion
Production Packer
A sealing device set between the tubing and the casing that keeps produced fluids and pressure inside the tubing.
What it does
Isolates zones, protects the casing above from pressure and corrosion, anchors the tubing and holds the packer fluid in the annulus. Slips grip the casing and a rubber element seals.
Basics
| Types | Permanent or retrievable |
| Setting | Mechanical (tubing movement) or hydraulic (tubing pressure) |
| Standard | API Spec 11D1 |
Common failures
- Element or slips that do not hold, communication between zones or with the annulus
Troubleshooting
- Symptom
- Annulus pressure follows tubing pressure
- Likely cause
- Packer or seal leak
- What to check
- Pressure test the annulus, check tubing integrity before blaming the packer