Single Piece Semi-Rigid Bow Spring Centralizer
The COS Slip-On Welded Semi-Rigid Bow Spring Centralizer is designed to deliver high holding force, durability, and reliable casing centralization in challenging wellbore environments. Sharing many proven design features of hinged welded centralizers, this slip-on version is engineered for direct installation onto the casing pipe.
Its collars are reinforced with roll-formed peripheral ridges for added strength and rigidity, ensuring consistent performance under high loads. Equipped with set screw style stop collars, the centralizer maintains a secure grip on the casing while minimizing slippage during operations.
Key Benefits
- Direct Slip-On Installation – Easy to mount onto the pipe, reducing installation time.
- High Holding Strength – Integrated set screw stop collars provide superior axial retention.
- Enhanced Structural Rigidity – Collars designed with roll-formed ridges for added durability.
- Optimized Performance – Available with four standard bow height options to achieve the desired restoring and starting forces.
- Corrosion Resistant – Manufactured with high-grade materials and protective coatings for long service life.
Sizes Available
- Standard sizes from 2 7/8″ to 30″
- Custom sizes or configurations available upon request
Applications
- Suitable for vertical, deviated, and horizontal wells
- Effective where high restoring force and casing centralization are critical
- Ideal for use with cementing operations requiring strong stand-off
