Float equipment (float shoe and float collars) are used in well cementing.
Float collars are placed one to three joints above the guide shoe or float shoe. They provide a seat for the cement plugs, the bottom plug pumped ahead of the cement and the top plug behind the full volume of slurry.
Float shoes contain a backpressure valve that prevents fluids from entering the casing while the pipe is lowered into the hole and prevents cement from flowing back into the casing after placement, while enabling circulation down through the casing.
The following float equipment (float collars and float shoes) are available
Single valve float collar
Double valve non-rotating float collar
Single valve float shoe
Cement type float collar and float shoe
Aluminum alloy type float collar and float shoe
Stab-in float collar and float shoe
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