| FEATURES |
| Operates in dry or water-filled
boreholes |
| Unaffected by plastic casing |
| Ideal for use in small-diameter
exploration boreholes |
| Excellent thermal/pressure stability
across specified operating range |
| MEASUREMENTS |
| Magnetic susceptibility |
| Natural gamma (optional) |
| APPLICATIONS |
| Water |
Indicator of permeable zones and
porosity
Formation-water salinity
Long-term well monitoring |
| Mineral Exploration |
Of particular use for uranium where
the log shows a negative correlation with uraniferous
compunds. Susceptibility logs are highly sensitive
to iron and show large contrasts according to its oxidation
state. The frequent occurrence of iron with other redox-sensitive
metals can provide a valuable indicator of the presence
of other minerals.
Horizon detection particularly of altered sequences |
| OPERATING CONDITIONS |
| Borehole type |
open/ plastic or grp cased, air/water
filled |
| Centralisation |
none; fin standoff recommended |
| SPECIFICATIONS |
| Diameter |
38mm |
| Length |
1.0m |
| Weight |
8kg |
| Max. temperature |
70ºC (extended range available) |
| Max. pressure |
20MPa (extended range available) |
| Transmitter/receiver |
Focussed dual coil |
| Operating frequency |
1.439kHz |
| Vertical resolution |
25mm |
| Range |
10-5 to 1cgs |
| Natural-gamma detector |
50mm x 25mm NaI(Tl) scintillation
crystal (larger sizes available) |
| SALES
INFORMATION |
| Probe |
| 25 062 001 |
Magnetic susceptibility probe |
| 25 063 000 |
includes natural gamma |
| Accessories |
| 20 091 000 |
Field calibrator |
| 23 001 000 |
Fin stand-off |
| 20 070 000 |
Natural-gamma API calibrator without
source |
| 30 010 000 |
3.7MBq 137Cs source for natural
gamma calibrator |
