The difference between casing centralizer and rod centralizer and their respective functions.

Casing centralizer. The casing can be smoothly down to the desired depth and the casing is in the center of the well. Ensure that the cement slurry is replaced with clean ring mud. Obtain more uniform cement rings.In this way, the cementing quality of solid well water is improved effectively.

The casing centralizer has the characteristics of simple structure, convenient use, long service life and relatively low cost.

The sucker rod centralizer is a downhole tool for anti-pumping well, which is suitable for the deflector well. It is especially suitable for the pump well and directional incline of the sucker rod and the above point, and the below point of the sucker rod, which is combined with the nylon centralizer on the rod body, and the anti-poling effect is better.