Specific type of well Intervention which involves changing completion or its elements and/or reservoir invasion using heavy rigs
| Completion-orientated | Reservoir-orientated | Reactivation | Abandonment | |
|---|---|---|---|---|
| Borehole cleaning | Milling | Water Shut-off (WSO) | ||
| Fishing | Cement recovery | Selective Stimulations | ||
| Replacing pump | Bottomhole drilling | Switching to another pay | ||
| Replacing tubing | Pulling down extra casing | Conversion (producer → injector) | ||
| Replacing packer | Removing the casing | Conversion (injector→ producer) | ||
| Installing a bridge plug | ||||
| Setting up the tubing/casing patch | ||||
| Pumping corrosion inhibitors | ||||
| Installing the gravel pack | ||||
| Setting up the bottom hole cement plug | ||||