Downhole tool KST-GK

Special geophysical systems

Downhole tool KST-GK

Downhole tool KST-GK

 

Appointment

The borehole tool KST-GK is designed to measure apparent resistivity (CS), spontaneous polarization (PS) potential, fluid temperature, and also to record the intensity of gamma radiation from formations along the wellbore.

Scope - research in wells drilled in water at temperatures from 0 to 60 ° C and a pressure up to 5 MPa.

 

Execution options

  • KST- GK-A - a borehole device KST-GK with autonomous power supply (with a channel GK), can additionally be equipped with depth control equipment;     

  • KST- GK-K - downhole tool KST-GK with cable feed (with GK channel).    

 

Specifications

Name

KST-GK-A

KST-GK-K

Measured parameters

Apparent resistivity probe N1.0M0.1A (PZ), ρk , Ohm * m

from 0.2 to 2000

Apparent resistivity probe N0.1M1.0A (GZ), ρk , Ohm * m

from 0.2 to 2000

Probe PS, V

from minus 1.5 to 1.5

Ambient temperature, ° С

from 0 to 60

Sensitivity of the measured parameter

The apparent resistance of the probe N1.0M0.1A (PZ), Ohm

0.1

The apparent resistance of the probe N0.1M1.0A (GZ ), Ohm

0.1

Probe PS, V

0.0001

Ambient temperature, ° С

0.008

General technical data

The upper value of the hydrostatic pressure of the operating conditions of use, MPa

5

Diameter of the investigated wells, mm

from 110 to 350

Logging speed, m / h

up to 300

Data logging period, ms

500

The temperature range at which the device remains operational, ° C

from minus 10 to 70

Maximum diameter mm

60

Total length of the device, mm, no more

4400

3700

Length of flexible probe, mm, no more

2160

An example of data obtained from the KST-GK device