PowerScrew Liner Hanger


The most pressing issues in well completions today require a more advanced, yet simple-to-operate and efficient suite of tool solutions. Seminole Services’ PowerScrew™ Torsionally Set Liner Hanger delivers just that: a hanger system with fewer components, offering ease-of-operation, reliable mechanical setting process, and robust functionality. And a bonus: PowerScrew’s ease of operation is combined with superior hanging capacity and pressure containment.

Key Features:
  • Unique metal-formed design using helical insets for additional strength
  • Simple, reliable mechanical setting process
  • Integral hardened slip wickers combined with advanced, profiled Viton® packing elements
  • Setting tool employing planetary roller screw (high performance component adopted from the aerospace industry)
  • Proven downhole diamond bearings used during the setting process
  • Multi-lead rifling mandrel used in the setting tool, for greater collapse resistance
  • Polished Bore Receptacle located below liner top provides easy tie-backs
  • TMK Ultra FJ premium connection used as an interface between the PBR and the liner top
  • Latch-lock liner wiper sub assembly
Reliable, Safe Operation

This advanced hanger system, employing a patented stretch-forming technique, provides a superior connection between casing liners and intermediate casing strings. The PowerScrew’s liner top combines profiled packer elements and hardened slip wickers for reliable hanging and sealing performance. In addition, the system’s running tool delivers superior tensile, compressive, and torsional strength, providing for successful deployment and target placement of the liner every time.



In contrast to many other liner hangers today which require high hydraulic pressure for setting, the PowerScrew utilizes the energy from the top drive to set the tool safely and efficiently, eliminating the need for high setting pressure. Top drive rotation provides the energy to helically stretch-form the liner top, allowing the entire hanger body to form against the casing wall. This process provides for improved pressure containment, higher hanging capacity, and an overall higher standard of reliability and safety.

Running Procedure