Floating collars is a  component that is installed near the bottom of the casing string on which cement plugs land during the primary cementing operation. The floating collars typically consist of a short length of casing fitted with a check valve. This device may be a flapper-valve type, a spring-loaded ball valve, or other types. The check-valve assembly fixed within the float collar prevents flowback of the cement slurry when pumping is stopped. Without a float collar, the cement slurry placed in the annulus could U-tube, or reverse flow back into the casing. The greater density of cement slurries than the displacement mud inside the casing causes the U-tube effect.

The positive action, back pressure ball, and seat valve constructed of thermal plastic ensure a secure seat for the floating collar. The float Collar has no internal connections and is highly resistant to abrasive fluids, corrosion, and temperature.

A special coupling device inserted one or two joints above the bottom of the casing string that contains a check valve to permit fluid to pass downward but not upward through the casing. The float collar prevents drilling mud from entering the casing while it is being lowered, allowing the casing to float during its descent and thus decreasing the load on the derrick or mast. Contact the top mechanical products supplier in Malaysia now!