Open Hole Centralizer

The STAR Open Hole Centralizer is mainly used with STAR Open Hole Packers, generally as part of the STAR Multi-Stage Frac System. The Centralizer helps to protect the packers from damage during equipment installation in the open hole section of the well bore as well as helping to centralize the packers during the setting procedure. The Centralizer freely swivels to allow for rotation when running in the hole if required and has spiraled grooves to ensure good circulation.

Features and Benefits

Helps prevent running damage
Centralizes when setting
Available in composite or steel
Swivels to allow for tool string rotation

Technical Data

Open Hole Size Max O.D. STD Connection
in mm in mm in mm
6 118.11 5.8 147.32 3 1/2EUE 88.9
6 1/8 155.58 5.812 147.62 3 1/2EUE 88.9
6 1/8 155.58 5.812 147.62 4 1/2EUE 114.3
6 1/4 195.58 5.93 150.62 3 1/2EUE 88.9
6 1/4 151.13 5.93 150.62 4 1/2LTC 114.3
7 7/8 200.03 7.5 190.5 5 1/2LTC 139.7
8 1/2 215.9 8.16 207.26 6 5/8LTC 168.3