FlowStat™ Downhole Flow Switch
Electronically Activated Flow Switch for Downhole Use
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APS Technology's FlowStat is an electronic switch that employs a proprietary algorithm to detect flow by monitoring the pressure fluctuations generated by the rig mud pumps†. The sensor has no moving parts and can operate reliably under adverse drilling conditions such as drillstring vibration and lost circulation – both key advantages over alternative designs. Potential applications of this rugged, fit-for-purpose device include battery-powered MWD tools where power conservation is a key issue for optimizing battery life and extending the time tools can remain in the hole before battery replacement is required.
System Features
- Proprietary algorithm detects pressure signature generated by the rig mud pumps
- Rugged, high-reliability design
- No moving parts that can be jammed by debris
- Downhole vibration does not affect switch performance
- Performance not affected by lost circulation conditions
- Rated for 347°F (175°C) operation
- Compact design; typical module size is 1.75 x 6 in. (44 x 152 mm)
† U.S. Patent #6,105,690
Download the FlowStat TDS to view detailed Product Specifications.
* Specifications subject to change without notice
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