FloFuse is a biased open valve which enables water injection at normal distributed rates but chokes once a trigger rate is exceeded. The FloFuse device is deployed as part of the lower completion or retrofitted into an existing well, mounted within a sub or integrated with sand screens. The lower completion is segmented into multiple zones with one or more FloFuse per zone dependant on required injection rates


  • Primary nozzle for distributed injection or production
  • Fused nozzle for limiting injection into fractures
  • Biased open feature to reset the valve
  • Optional check valve feature for backflow prevention
  • Field adjustable design


  • Ensures uniform injection distribution along the well
  • Restricts injection to fractures or high permeability zones
  • Improves sweep efficiency in the reservoir
  • Delays water breakthrough to producer wells
  • Improved placement of acid treatments