Nautilus™ Centralizer Sub

The NAUTILUS™ Centralizer Sub was designed to solve one of our industry's most challenging centralization problems encountered when running casing into close tolerance, under reamed hole sections.

The NAUTILUS™ centralizer sub is specifically designed to be run as an integral part of almost any casing string. Bow spring can be supplied in almost any casing size, weight, grade, or thread and for use in the most challenging wellbore configurations while being able to rotate casing to bottom.


  • Centek UROS-SUB or TUR-SUB centralizer for maximum standoff
  • Designed specifically for ultra-tight tolerance applications
  • Built to match customer designed casing requirements


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