The Centek HDSO is a heavy duty stop collar developed for use in challenging wells where strength is a priority.
The HDSO slip-on heavy duty stop collar is engineered for challenging well conditions where strength and reliability are paramount.
Utilizing the same integrated hinge technology as Centek’s S2 Hinged bow spring centralizer, the 00SH offers a robust solution for securing and protecting centralizers on the casing string. Made from ultra-high-strength materials and heat-treated to enhance durability, the 00SH features a low-profile twisted hinge design for quick and easy installation. Its advanced engineering enables it to withstand high axial forces, ensuring reliability and efficiency in demanding wellbore environments.
As a counterpart to the S2-HD Heavy Duty Centralizer, the HDSO stop collar features two offset rows of M12 socket set screws for secure attachment, with fitment tested up to 50 lb-ft of torque. Its anti-vibration screw retention design ensures reliable performance even in the most challenging conditions, and it is optimized for casing grades up to P110. The HDSO offers operators a robust, high-performance solution to maintain well integrity and support effective cementing operations in tough environments.
HDSO stop collars are developed as counterparts to the S2-HD heavy duty centralizer.
HDSO stop collars are available in sizes from 4 1/2" to 24"
For more information talk to our Product Service Experts today or use our Product Finder to find the right product for your application

High-strength 00SO slip-on stop collars are engineered to deliver exceptional performance in the most demanding well conditions.
00SO Slip on Stop Collar
The Centek UHD Stop Collar is engineered for the most demanding well environments, delivering exceptionally high holding forces where reliability is non-negotiable.
UHD Ultra Heavy Duty, Slip on Stop Collar
"While on bottom in a 12,000ft well we were able to rotate at 60rpm and the bond log results were excellent”
Read more..."The installation was smooth, the cement job was excellent, and the final bond log confirmed we made the right choice."
Read more..."I was very sceptical about running this quantity of centralizers in the hole. The company man said he would bet money we’d have problems. The Centek centralizer got us to bottom under very difficult conditions.”
Read more..."This is a technology improvement/ innovation that will continue to be deployed for this application in deep water Agbami wells.”
Read more...Submit your well details to request a tailored Centek simulation and receive expert product recommendations for your application.
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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