Innovex’s 700 class of Hinged Welded Imperial and Dual Contact Bow Centralizers are unmatched for durability and performance. Thanks to their semi-rigid characteristics and optimal centralizing capacity, our dual contact bow spring centralizers are ideal for deviated and horizontal wells. The design of our imperial bow spring centralizers provides strong restoring forces while minimizing starting and running forces, making it a proven choice for excellent casing centralization in vertical, deviated and horizontal wells.
The 700 Series Centralizer uses hinge pins to secure the hinged designed end collars together around the casing, while straight bow springs are welded onto the end collars. The design is hinged for easy installation and is normally run over a stop collar or coupling.
707 – Hinged, Welded, Imperial Bow Centralizer with Turbo Fins
Another hinged centralizer, the 707 Series includes the addition of turbo fins that are spot-welded onto the hinged end collars. The turbo fins induce a spiral flow pattern to cement slurry, help remove mud cake and reduce channeling during cementing operations
709 – Hinged, Welded, Imperial Bow Centralizer with Turbo Fins and Set Screws
The hinged 709 adds both spot-welded turbo fins and evenly spaced integral set screws to the design of the 700 Series. Because of the greater holding force supplied by the set screws, a stop collar is not required with this centralizer.
710 – Slip-On, Welded, Imperial Bow Spring Centralizer
The 710 Centralizer is our slip-on version of the imperial bow design. It consists of two slip-on, three-inch creased steel collars with straight bow springs that are welded onto the outside of the end collars. It provides the casing/liner a smooth bearing surface when run between two stop collars or over a slip-on stop collar.
711 – Slip-On, Welded, Imperial Bow Spring Centralizer with Set Screws
This centralizer consists of straight dual contact bow springs that are welded onto the hinged end collars. Normally run between two stop collars, the 780 Series’ double bow design is optimized for small-clearance situations.
The 788 is our dual contact bow centralizer in a slip-on configuration, which allows the casing/liner to maintain a smooth bearing surface. It features two slip-on, three-inch creased steel collars with straight dual contact bow springs that are welded onto the outside of the end collars. The 788 may be run between two stop collars or over a slip-on type stop collar.