The equipment was development by AO NPP VNIIGIS in cooperation with OOO NPF VNIIGIS-TZS
is designed for defect detection and separate casing wall thickness measuring.
Features and Advantages
- detection of defects (cracks, pipe break-off, corrosion intervals and mechanical wear zones, explosion perforation zones and filters, collar corrosion);
- two inner pipes separate wall thickness measurement (after computer processing), without retrieving the internal pipe;
- wellbore construction investigation: collars location within the internal pipes, depth referencing of all pipes, pads/packers/valves depth location, etc.
Wellbore diagram with all the defects, collars, pads (both two pipes); signal isoline diagram (prolonged
measurement time) is represented by the means of processing software.
Specifications
| Pipe outer diameter, mm | 62-340 |
| Max. two pipes wall thickness | 25 |
| Wall thickness measurements error, mm: a single-pipe configuration a multistring configuration | 5 10 |
| Minimum longitudinal crack length, mm: -first inner pipe -second pipe cross-axis | 1/9 of circumference 1/4 of circumference 1/6 of circumference |
| Temperature absolute error, °C | 1 |
| Response threshold, °C | 0.01 |
| GR intensity range, μR/h | 3-100 |
| Internal diameter error, mm | 1 |
| Max. hydrostatic pressure, MPa | 80, 100* |
| Max. operating temperature, °C | 120,150,175* |
| Cable | one-core cable |
| Tool dimensions, mm diameter length (without centralizers) | 42 2100 |
*- depends on tool modification
Download the equipment card