The equipment was development by AO NPP VNIIGIS in cooperation with OOO NPF VNIIGIS-TZS
is designed for detailed casing string conditions survey, defects form and size identification; cumulative and drilling perforation holes detection, wall thickness determination within certain sectors
Features and Advantages
- casing small defects identification (longitudinal cracks and cross cracks and holes);
- identification of local reductions in casing wall thickness within corrosion sectors and mechanical wear zones (including key seats);
- cumulative and drilling perforation holes detection.
Specifications
| Casing pipe size, mm | 140-168 |
| Wall thickness measurements range, mm | 3 ÷ 12 |
| Wall thickness measurements relative error (full-circle averaged), % | 10 |
| Wall thickness measurements relative error for every sector, % | 20 |
| Defects minimal length (cracks), mm | 30 |
| Defects minimal size (holes), mm | 9 |
| Minimal spacing between perforation holes, mm | 100 |
| Max. hydrostatic pressure, MPa | 60 |
| Max. operating temperature, °С | 100 |
| Cable | one-core cable |
| Tool dimensions, mm: surface panel downhole tool diameter downhole tool length | 290х260х150 102, 112 3100 |
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