Introduction
The Bladerunner centralizers are renowned for having ultra-low friction characteristics and high strength construction.
Low friction blade inserts will reduce drag as the liner is run through the previous casing string to expose the SPIR-O-LIZER® 360° blade form to aid running as the liner enters the open hole. Low friction bands in the bore of the centralizer ensure extremely low start-up torque when the liner is rotated during the cementing process.
In this Case Study we set out to compare the performance of our friction-reducing centralizer. We achieved this by comparing simulated results utilizing Landmark WellPlan® software with RigData after casing was run with our VICTUS – BLADERUNNER. This helped us verify that our equipment meets the performance standards we rate and advertise.
Customer Challenge
A major operator in Saudi Arabia faced challenges with high drag forces while running a 7” Liner into a deviated well path.
Torque and drag simulations showed that the Liner String would not be able to reach the required set depth without losing a significant amount of hook load and subsequently have the risk of helical buckling.
Varel Solution
To reduce drag friction in this deviated well, the VICTUS – BLADERUNNER centralizers were utilized.
The low friction Teflon buttons on the exterior ensured a reduction in drag while running in the liner. And the spiral blades assisted in an increased stand-off in the open hole section for an improved cementing operation.