Downhole · Completion
Sand Control Screens
Screens across the producing zone that let fluid in and keep formation sand out of the well, alone or with a gravel pack around them.
What it does
Weak formations produce sand that erodes chokes and screens and plugs tubing and surface vessels. Screens, gravel packs or chemical consolidation hold the sand back.
Basics
| Methods | Screens, gravel packs, chemical consolidation |
| Needed in | Weak, unconsolidated sands |
Common failures
- Screen eroded by sand laden flow, or plugged by fines
Troubleshooting
- Symptom
- Sand at surface after a period of clean production
- Likely cause
- Screen erosion
- What to check
- Check sand rates and choke wear, plan a workover