Coiled tubing · Intervention
Stripper & CT BOP
The stripper seals around the moving coiled tubing; below it, ram preventers can close the well.
What it does
Keeps a live well contained while pipe moves. The stripper rubber is a consumable seal. A shear seal preventer can cut the tubing and then close fully to seal the well.
Basics
| Stripper | Consumable rubber seal on the moving pipe |
| Shear seal BOP | Cuts the tubing and seals the well |
| Practice | API RP 16ST |
Common failures
- Stripper rubber worn and leaking
Troubleshooting
- Symptom
- Leak at the stripper during the job
- Likely cause
- Worn stripper rubber
- What to check
- Change the element; with coiled tubing it can be changed with the pipe still in the well