In oil and gas drilling, float collars and float shoes are vital for efficient casing and cementing. A float collar, 20 - 30 meters from the casing end, acts as a backpressure valve and bearing ring. A float shoe, at the casing tip, combines guidance and backflow prevention.
Core Advantages
Smooth Installation: The float shoe’s streamlined design eases casing lowering, reducing friction in deep or horizontal wells.
Backflow Prevention: Both devices seal tightly post - cementing, keeping slurry in place to secure well integrity.
Buoyancy Support: They reduce rig load, critical for heavy casing in deep wells.
Key Parameters
Sizes: 4 1/2" to 20+" for various casings; float shoes (300 - 600mm), collars (150 - 300mm).
Pressure/Temperature: Handles 20 - 150 Mpa and - 20°C to 250°C, suitable for harsh environments.
Materials: High - strength steel or alloys resist corrosion from mud and hydrocarbons.
Ideal for technical/oil layer casing, deep, and horizontal wells. Choose based on well conditions and casing specs to ensure safe, efficient operations.
