When you find your drilling project in a tight spot, Innovex has you covered. Our 600 Series slip-on welded close tolerance centralizers are specifically designed for close tolerance casing applications when restrictions are rampant. Their design provides a practical solution for sufficient restoring forces after passing through those restrictions, while keeping the starting and running forces at a minimum.
Used in close tolerance well applications
Recommended where tight restrictions are encountered
Slip-on design with a smooth continuous bow profile
Bows are inserted into the collar to allow minimum positive O.D.
Slip-on end collars have enhanced mechanical integrity
The 610 Series Centralizer consists of two slip-on, three-inch-long notched steel collars with straight bow springs that are welded to the end collars. These centralizers are normally run between two stop collars or over a slip-on stop collar to provide the casing/liner a smooth bearing surface.
611 – Slip-On, Welded, Close-Tolerance Centralizer with Set Screws
An upgraded version of the 610 Series, this centralizer features an end collar with evenly spaced integral set screws that allow the centralizer to be pulled into the hole; a stop collar is not required. It is recommended for use on casing grades of P-110 and lower.
The 640 Series is a slip-on centralizer with straight extended bow springs welded to notched slip-on end collars. The extended profile ensures it does not hit the casing collars during casing running.
641 – Slip-On, Welded, Extended Bow, Close-Tolerance Centralizer with Set Screws
In addition to straight extended bow springs, this centralizer features evenly spaced integral set screws that allow the centralizer to be pulled into the hole and eliminate the need for a stop collar. The 641 Series is recommended for use on casing grades of P-110 and lower.