Due to the high temperature resistance of the float shoe or float collar, good sealing and drillability, and convenient connection, it can replace lead shoes and casing shoes. Floating shoes or floating collars can be used not only for general technical casing and casing casing but also for deep wells, ultra deep wells and special process wells.

Float shoe is attached to the end of the casing string and acts as a guide shoe and back pressure.

Float collar is located 20 to 30 meters from the end of the casing string. Support the ring and back pressure Verr.

Float hoop and floating shoe is a one-way valve, fluid can only flow from one direction, the opposite direction is sealed.