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Natural Gamma Tool
This tool measures the naturally occurring gamma radiation found in rocks and sediments. Gamma radiation is found in minerals containing Potassium40, Uranium238 and Thorium232.
Argillaceous formations (shales, mudstones and siltstones) tend to have a high concentration of minerals that contain potassium.
The higher the concentration of these potassium-rich minerals the greater the responses on the natural gamma log.
Specifications
Logging Conditions
- 2 – 9 m/min
- Free running
Borehole Conditions
- Minimum diameter 50mm
- Dry or fluid filled
- Unlined, steel or plastic lined