is designed for investigation of borehole set condition by means of casing and cement stone sampling in oil and gas boreholes, and also for creation of holes of large diameter in casings for plug-back mixture topping-up in annular space during isolation squeeze.
Specifications
| Well diameter, mm | 140-168 |
| Max depth of core sampling, m | 4500 |
| Diameter of drilled out sample, mm | 20 |
| Diameter of casing hole, mm | 31 |
| Bore emission, mm | up to 45 |
| Time of sample drilling-out, min | 12-20 |
| Maximum number of cores, sampled for one round-trip, pcs | up to 5 |
| Power-supply, W | 380 |
| Max. operating pressure, MPa | 80 |
| Max. operating downhole temperature, °C | 150 |
| Instrument dimensions, mm: diameter length | 112 2610 |
| Downhole tool weight, kg: | 85 |
The tool is acceptable to use in complex with MYO-1 angular orientation module for creation of some holes along the casing.
PKS-112 drilling perforator-core extractor is worked out for exploitation with logging laboratory and hoist, equipped by three- or seven-core cable.
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