UltraSeal™ Auto-Fill Float Equipment

UltraSeal™ Auto-Fill Float Collars and Guide Shoes

Blackhawk’s UltraSeal™ Auto-Fill Float Equipment is designed for running and cementing tight-tolerance 9-5/8” and larger casing/liner strings. Industry-leading technology combined with exclusive features results in the most capable and flexible auto-fill system available.


  • High-pressure holding capability from proprietary dual, composite flapper valves - fully PDC-drillable, temperature resistant to 300°F
  • Large ID through valves and ball seat to maximize running speeds, minimizing surge pressures
  • Activation flow rate and pressure can be adjusted “on-the-fly”, just prior to running downhole via the removable ball seat
  • Only the activation ball is expelled, no auto-fill tube that needs to be caught downhole
  • Latching profile for Blackhawk Single and Dual SSR Plugs


  • Maximized cement column height for increased well safety and regulatory compliance
  • Surge reduction while auto-filling casing decreases costly mud loss and improves well control
  • Tight-tolerance capability allows for optimized well tubular diameter
  • Increased running speeds contributing to significant rig time savings while running casing

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