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.

Description

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.

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

Results

Sample of metal casing, cement stone

Sample of casing, cement stone and rock formation

Certificate