Heat Pulse Flowmeter Tool
Precision Fluid Velocity Measurement for Low-Flow Conditions
The Heat Pulse Flowmeter Tool is specifically designed for measuring very low fluid velocities in boreholes, where traditional impeller flowmeters would fail to detect any flow. The tool features a small heating element positioned between two highly sensitive temperature sensors, located 5cm above and below the element.
When the tool is stabilised at a specific depth, a heat pulse is generated, and the time taken for the heat to reach a sensor is recorded. This time interval is used to calculate the fluid velocity with exceptional precision, making it ideal for low-flow scenarios and detailed borehole investigations.
Key Features
Specifications
- Dimensions: 1000mm (length) x 52mm (diameter)
- Weight: 6.2kg
- Measurement Range: 1–50mm/s
- Maximum Temperature: 80°C
- Maximum Pressure: 20MPa
Logging Conditions
- Measurements are taken with the tool held stationary at the desired depth.
Borehole Compatibility
- Minimum Diameter: 60mm
- Environment: Suitable for water-filled boreholes
- Lining: Compatible with unlined, screened, or cased boreholes (useful for detecting casing leaks)
The Heat Pulse Flowmeter Tool is an essential instrument for low-flow fluid velocity measurements, offering precise and reliable results in challenging conditions. Its advanced technology and specialised design make it ideal for hydrogeological, environmental, and geotechnical investigations.
