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Dual Induction Tool
The induction tool generates an electromagnetic field in the vicinity of the borehole and measures the response of the formations to this applied field, from which conductivity is determined.
Formation conductivity (inverse of resistivity) is related to both mineralogy and fluid properties. Clay formations tend to a higher conductivity than sandy formations.
The tool may be used in dry, fluid filled and PVC lined boreholes. The tool is normally used in high conductivity (low resistivity) formations typically less than 200 Ohm.m.
Specifications
Logging Conditions
- 2 – 9 m/min
- Free running
Borehole Conditions
- Minimum diameter 50mm
- Dry or fluid filled
- Unlined, steel or plastic lined
Formation evaluation using natural gamma, dual induction and normal resistivity