Roller Centralizer
Spiral Vane Roller Centralizer consists of rigid body, on which machined spiral vanes. There are modified alloy steel, fully heat treated rollers fixed on every spiral vanes. Because of rigid body and rolling friction between the rollers and inside of well or casing. The capability of the roller Centralizer is
better than others of all. Roller Centralizer Product Show Roller Centralizer Production Roller Centralizer Package
Roller centralizers are mainly used
for big high Roller, high deviated wells and horizontal wells, to
centre casings.Roller Centralizers can also remove wellbore cake and improve mud replacement efficiency etc.Roller Centralizers provide
superior wear resistance and have been proven to remain functional
throughout the life of the well and can aid in casing/tubing retrieval.
Precision-machined inside diameter fits over
the casing through the complete API tolerance range, providing
excellent rotational performance in mud.
When running casing through open hole, the
system’s smaller roller-contact area reduces the risk of differential
sticking and maintains standoff .The roller/axle relationship ensures that axle shear stresses remain within elastic limits, preventing permanent deformation.
Axles are crimped in place, eliminating the
welding process, while ensuring the rollers cannot break free and fall
into the wellbore. The system’s high-quality construction materials improve high-pressure/high-temperature capabilities.
Roller Centralizers are available in sizes 4½" to 20".Any special sizes are available on request.
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