GAMMA DUAL DENSITY CALIPER

SPECIFICATIONS

System Requirement GAA Logger 20
Diameter 60 mm
Length 2.50 m
Weight 42 kg
Max. pressure 200 bars =2900 psi
Max. temp. 70º C
Power supply 35-40v
Detectors NaCl crystals
(Both source and Detectors are focused)
Source Cs1 3 7 100 mCi
Caliper: range 60 - 380 mm
Logging speeds 6 m/min @ 1cm sample rate
Hole diameter 60 mm to 280mm
Logging Mode Side-walled

LOG PARAMETERS

Natural Gamma Ray (GR)
Long Spaced Density 32cm (LSD)
Short Spaced Density 12cm (SSD)
Caliper (CALI)

APPLICATIONS

The FDS probe employs a Cs 137 radioactive source to record backscattered radiation from the formation. This probe can be used in dry or water filled, cased or uncased wells
A natural gamma detector at the top of the tool measures natural gamma radiation.
There is a single arm caliper to measure the borehole diameter and push the probe to the sidewall of the well.
From this bulk density, rock porosity as well as elastic parameters and lithology can be determined.

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