ISO Certified Standard Back Pressure Valve Casing Guide Float Shoe for Wellbore Stability

ISO Certified Standard Back Pressure Valve Casing Guide Float Shoe for Wellbore Stability. Large-size Custom Support: Available up to 24", exceeding standard casing sizes. High-Grade Steel Compatibility: Supports V140, V155 grades, beyond standard requirements. Full PDC-Drillable Design: 100% drillable with PDC bits, minimizing non-productive time during post-cementing operations. Customizable for Special Wells: Supports premium connections and CRA materials (13Cr, Super 13Cr) for sour service and HPHT wells. Dual-Valve Anti-Backflow Design: High-pressure resistant (up to 5000PSI) dual check valve, preventing cement slurry backflow effectively.