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Resistivity Meters & Imaging Systems
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Borehole Logging Probe

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Logging Probes


Borehole Logging Probe Borehole Logging Probe  


Borehole Logging Probe

RESISTIVITY PROBE IN BOREHOLE

Borehole Logging Probe
  • Measurement of the short and long normal resistivity
  • Continuous display of the temperature
SHOWN: Resistivity probe in borehole with a logging unit (SYSCAL JUNIOR)

PRINCIPLE
This probe allows to measure short normal (16 inch = 40.64 cm) and long normal (64 inch = 162.56 cm) resistivity values.
It features 3 electrodes mounted on a cable rolled around a reel : one electrode (at the extremity) is used for the current injection and the other ones, for the potential measurements (M16 for 16 inch and M64 for 64 inch).
The reel is 100 meters length and has 3 plugs to connect the A, M16 and M64 electrodes to the SYSCAL.
Two electrodes (B and N) are located on the ground at about 10 meters from the borehole and are connected to the B and N plugs of the SYSCAL.
On the reel, a display indicates continuously the temperature values measured by an integrated sensor.

Features:

  • First, the probe is lowered down the borehole to the depth of the first measurement.
  • To get the first measuring point, the A, M16 plugs of the reel are connected to the A, M plugs of the SYSCAL
  • After each measurement, the results have to be stored in the SYSCAL.
  • Then to get the second measuring point, the M plug of the SYSCAL is then connected to the M64 plug of the reel
  • Then, get move the probe to the next depth and do anew the procedure.
Borehole Logging Probe
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