Hydrogeologic Investigations
Heat Pulse Flowmeter
Description
WORLDWIDE
Services
Home > Services > Site Monitoring
Site Monitoring
Heat Pulse Flowmeter is a unique flowmeter tool designed to measure low flow rates in groundwater monitoring well. It will also give the direction of the flow of fluid vertically.
Features
The probe contains a horizontal wire-grid heating element and thermistors located above and below it. Apertures in the tool permit the free flow of well fluid through the assembly. Pulses of electric current are applied to the heating grid under surface command, warming fluid in the vicinity of the grid. The warm fluid front migrates towards the thermistors where it is detected. Depending on the direction of flow, either upper or lower thermistor detects the warm fluid front first. The time taken to reach the detector gives an indication of flow rate.
