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OBS Bow Spring Centralizer

Centek OBS single-piece bow spring centralizers deliver reliable performance in onshore wells, including vertical, horizontal, and deviated applications.

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A Reliable & Dependable Choice

OBS single-piece bow spring centralizers 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.

Key Benefits

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

Targeted applications

  • Onshore
  • Vertical, deviated and horizontal wells

Stop Collars

OBS centralizers are available with a corresponding range of stop collars.

0SO Slip on Stop Collar

Available 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 Finder to find the right product for your application

Centek Product Service Experts

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Customer Testimonial

Don't take our word for it!

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TUR Nigeria
Christian Rogerson, Drilling Operations Engineer, Chevron

"This is a technology improvement/ innovation that will continue to be deployed for this application in deep water Agbami wells.”

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UROS Malaysia
Mohd Irfan, Talisman Energy

"No issue at all to get casing to the bottom…managed to rotate while cementing approximately 20rpm, 10-15kft lbs torque. Will be using the same for the next 2 wells"

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S2 Indonesia
Senior Engineer, Indonesia

"The side track was run successfully with no issues. We would use Centek products again, this time in the first instance."

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ES West Turkey
Operator, Turkey

"The installation was smooth, the cement job was excellent, and the final bond log confirmed we made the right choice."

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Search our product catalogue to find the right product

The Centek Product Finder is your go-to tool for exploring our full range of centralizers and stop collars available worldwide. Designed to make product selection simple, it provides instant access to key dimensional and performance data, helping you compare options and identify the best fit for your well design.

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