01 / 03A staged cementing completion system that sets open-hole packers, opens the cementing channel, displaces cement, closes the channel and retrieves the service assembly without a routine plug-drilling operation.
| Parameter | Specification |
|---|---|
| Overall length (m) | 6800 |
| Maximum OD (mm) | 215 |
| Packer working pressure (MPa) | 7 |
| Opening pressure (MPa) | 16-18 |
| Closing pressure (MPa) | 20 |
| Retrieval force (kN) | 200 |
| Model | TFS－178 | TFS-140 |
|---|---|---|
| Overall length (m) | 3152 | 3152 |
| Maximum OD (mm) | 210 | 186 |
| Minimum ID (mm) | 159 | 124 |
| Opening pressure (MPa) | 8 10 12 | 7 9 11 |
| Closing pressure (MPa) | 9 12 | 9 12 |
| Working temperature (°C) | 125 | 125 |
| Connection thread | 7LCSG /7BCSG | 5 1⁄2LCSG |
Used to shorten the completion cycle and reduce cement or string damage in horizontal wells.
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