API Roller Centralizer/ Casing Roller Centralizer/Spiral Vane Roller Steel Solid Rigid Centralzier

The Roller Centralizer consists of rigid body, on which machined five spiral blades or straight blades. There are three modified alloy steel, fully heat treated rollers fixed on every blade. Because of rolling friction between the rollers and inside of well or casing, the capability of the RCR Centralizer is better than others of all. Recommend to use the tool in deviated holes and horizontal holes.

13-3/8"Centralizer Technical parameters(Bore Hole17-1/2")

9-5/8"Centralizer Technical parameters(Bore Hole12-1/4")

7"Centralizer Technical parameters(Bore Hole9-1/2")

7"Centralizer Technical parameters(Bore Hole8-1/2")

5-1/2"Centralizer Technical parameters(Bore Hole8-1/2")

4-1/2"Centralizer Technical parameters(Bore Hole6")

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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After-Sales Service: Provide considerate services to minimize clients' worries. (1) Assist clients to prepare for the first construction scheme; (2) Install and debug the equipment; (3) Train the first-line operators on site (4) Examine the equipment regularly; (5) Take initiative to eliminate the troubles rapidly at site; (6) Distribute the guarantee fittings door-to-door (7) Provide perfect service; (8) Provide technical exchanging; (9) Provide maintenance for big items.