OBS Bow Spring Centralizer

• Slip On Bow Spring Centralizers
• S2 Bow Spring Centralizer
• S2-HD Heavy Duty Bow Spring Centralizer
• OBS-2 Bow Spring Centralizer
• OBS Bow Spring Centralizer

The Centek OBS single-piece bow spring centralizer has been reintroduced to deliver reliable performance in onshore wells, including vertical, horizontal, and deviated applications. Designed to withstand tough casing-running environments, the OBS centralizer combines durability with a compact design, offering a cost-effective solution for operators without sacrificing quality or effectiveness. Its single-piece construction ensures strength and stability downhole, making it ideal for demanding well conditions.

Shorter than the premium Centek S2 model, the OBS maintains a high restoring force, meeting the requirements of most well designs. The proprietary heat treatment process enhances the flexibility of the bows, allowing the OBS to adapt to varying wellbore geometries and support effective centralization. With its strong performance, durability, and optimized design, the OBS centralizer provides a dependable choice for onshore applications where robust and efficient well construction is essential.

Features and benefits

• Good standoff
• High restoring force
• Exceeds API 10D version 7

Targeted applications

• Onshore
• Vertical, deviated and horizontal wells

Performance ratings

Centralization and the ease of running casing is often a balance between strength and flexibility which combine to support, what we call, 'runability'. To help with product selection we've added a rating to all our products for flexibility, runability and inherent strength.

Sizing

OBS centralizers are available in sizes from 4 1/2" to 13 3/8".

For more information talk to our Product Service Experts today or use our Product Selector Tool to find the right product for your application

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