Product Overview

The Junchi (SANMON) Float Shoe with Eccentric Nose is a specialized cementing tool designed to guide the casing string smoothly through wellbore irregularities, ledges, and deviation points while providing the primary check valve function for cementing operations. Unlike conventional float shoes with a central guide nose, the eccentric design features an offset, rounded-profile nose that helps navigate the casing past obstacles encountered during running into highly deviated, horizontal, and problematic wellbores.

The shoe body is manufactured from high-strength alloy steel (L80/N80) with a PDC-drillable internal structure. The guide nose is forged from high-strength composite or cast aluminum with a polised exterior finish to reduce friction during casing running. The integral check valve utilizes a reliable plunger-type mechanism with a phenolic resin core rated for high differential pressures. Manufactured to API Spec 10F standards, each float shoe undergoes hydrostatic testing and dimensional inspection in our Tianjin facility.

Technical Specifications

Applications

• Deviated & Horizontal Wells: Eccentric nose profile helps guide the casing past ledges and through build-up sections in highly deviated and horizontal wellbores.

• Casing Through Problem Zones: Effectively navigates through doglegs, washouts, and collapsed sections where conventional central-nose shoes may hang up.

• Re-Entry Wells: Ideal for re-entry drilling programs where casing must pass through existing wellbore obstacles.

• Directional Drilling Programs: Supports complex directional trajectories including S-shape and J-shape well profiles.

• Extended Reach Wells (ERD): Reduces running friction and improves casing reach in long lateral sections exceeding 5,000 meters.

Advantages

• Superior Guidance: Offset nose profile reduces hanging-up incidents by 60-80% compared to conventional central-nose float shoes in deviated wells.

• Low Friction Profile: Polished composite nose surface minimizes friction coefficient, reducing casing running drag by up to 25%.

• Reliable Check Valve: Proven plunger-type check valve with multiple sealing elements ensures zero backflow during cementing.

• Full Drillability: All internal components including nose and valve core are fully drillable with PDC Bits, typically completed in under 20 minutes.

• Robust Construction: Forged one-piece body with seamless transition between steel body and composite nose for structural integrity.

• Cost Savings: Reduced casing running time and elimination of stuck-pipe incidents translate to significant rig time savings.

Why Choose SANMON

SANMON combines precision engineering with practical field experience to deliver float shoes that solve real-world casing running challenges. Our Tianjin manufacturing center features CNC machining for shoe bodies, specialized composite molding for guide noses, and comprehensive testing including hydrostatic pressure tests, ultrasonic C-scan inspections, and dimensional verification. We utilize hot press forming technology and autoclaves for composite nose curing to ensure optimal material properties. Our engineering team includes experienced drilling engineers who understand the challenges of casing running in complex well trajectories and can provide technical consultation on product selection and running procedures. With proven field performance across multiple basins in Asia, the Middle East, and Africa, Junchi/SANMON float shoes deliver reliable guidance and cementing integrity at competitive prices with responsive customer support.

FAQ

Q: How does the eccentric nose improve casing running?
A: The offset nose acts as a cam, guiding the casing over ledges and through doglegs rather than impacting them directly like a central nose would. This significantly reduces the risk of hanging up during casing running.

Q: Is the float shoe suitable for horizontal wells?
A: Yes, the eccentric nose design is specifically optimized for horizontal and highly deviated wells where conventional shoes may experience difficulties.

Q: What type of check valve is used?
A: We use a plunger-type check valve with a phenolic resin core, which provides reliable back-pressure control and is fully drillable.

Q: Can the shoe be used in sour service (H2S) wells?
A: For sour service applications, we offer the float shoe body in NACE MR0175 compliant materials. Please specify H2S service requirements when placing your order.

Q: What is your minimum order quantity?
A: We accept orders starting from single units for evaluation. Volume pricing is available for orders of 10 units or more.