Does adding more centralizers to the string increase drag?
Not necessarily. While it might seem that adding more centralizers would increase drag, in practice the effect is often the opposite when the correct centralizer type and spacing are used. Centek’s simulation software accurately models the impact of centralizer quantity, placement, and design on both stand-off and running forces.
Using too few centralizers can cause poor stand-off, leading to increased side forces and higher drag as the casing contacts the borehole wall. By contrast, the right number of low-start and low-running-force Centek centralizers helps the casing run smoother, reducing drag and ensuring proper centralization for effective cementing.
In short, optimized placement based on Centek’s placement recommendations can actually reduce drag, not increase it, while improving well integrity and cement quality.
