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Impeller Flowmeter Tool
This tool is used to determine vertical fluid velocity within a borehole and identify areas of inflow or outflow. The tool is normally run at a constant logging speed both up and down the borehole.
The data is corrected for logging speed and a fluid velocity (FV) log is produced.
Flow (Q) in l/s may then be derived from the fluid velocity (FV) and caliper (borehole diameter) data.
Specifications
Logging Conditions
- 4 – 15 m/min
Borehole Conditions
- Minimum diameter 60mm
- Water filled
- Unlined, steel or plastic screened
Impeller flowmeter log showing vertical water movement between two issues