SIBBURMASH Group of Companies

Normalization Sub

A metal body with an easily drillable ball seat.

Advantages

  • prevents large particles from reaching the frac-sleeve seats;
  • reliable sealing;
  • backup equipment activation;

Specifications

  • differential pressure rating: up to 35 MPa
  • internal-parts material: easily drillable metal
  • internal-parts drill-out time: up to 0.5 h
  • size range: 102/146; 114/168(178); 127/178; 178/245

Application area and experience

The normalization sub helps grind up large parts of the liner hardware during drill-out and, when needed, allows a ball to be seated in the drillable seat to carry out additional operations.