Float shoe

This float shoe features a high-strength structural design, a compact appearance, and a finely finished surface, presenting a premium industrial feel. It is suitable for guiding and sealing the bottom of the casing during cementing operations, effectively improving construction stability and operational efficiency. Through optimized internal structure and material selection, it maintains stable performance under high pressure and high temperature environments, meeting the needs of various working conditions.

 

Performance Features

1. High-Strength Outer Shell Design

• The outer shell is forged or precision-machined from high-quality alloy structural steel, possessing excellent pressure resistance and impact resistance.
• The surface is treated with anti-corrosion coating, enabling long-term use in complex downhole environments and extending product lifespan.

2. High-Quality Inner Lining Material Structure

• The interior uses highly drillable aluminum alloy material, facilitating subsequent drilling operations and improving construction efficiency.
• The material balances strength and machinability, ensuring that it does not affect subsequent processes while bearing pressure.

3. Diverse Valve Structure Design

• Internal valves can be manufactured using materials such as copper rods, aluminum rods, or nylon, depending on actual technical requirements.
• Some structures utilize a rubber-coated aluminum rod process to enhance sealing and wear resistance, while also providing excellent temperature resistance to adapt to various downhole environments.

4. Wear-resistant sealing sphere configuration

• The internal sphere of the float shoe is made of highly wear-resistant material, maintaining stable performance during repeated opening and closing.
• This effectively enhances the sealing effect, reduces the risk of leakage, and improves overall safety.

5. High pressure withstand capability

• The back pressure resistance of the float ring and float shoe can reach over 20 MPa, meeting the requirements of medium- and high-pressure well operations.
• It maintains stable sealing performance even in high-pressure environments, ensuring smooth construction.

6. Flexible structural customization capability

• The internal structure can be designed as a valve-type or ball-type structure according to different user operating conditions.
• Multiple customized solutions are supported, suitable for different well depths, pressures, and construction conditions.

 

Specifications and Dimensions

1. Float Ring Specifications

Φ154 × 390 ±10 mm (Casing size 5-1/2″)

Φ270 × 370 mm (Outer shell size 9-5/8″)

Φ370 × 380 mm (Outer shell size 13-3/8″)

2. Float Shoe Specifications

Φ154 × 430 ±10 mm (Casing size 5-1/2)

Φ270 × 660 mm (Outer shell size 9-5/8)

Φ370 × 630 mm (Outer shell size 13-3/8)

Product dimensions conform to standard casing sizes, and customized processing is available to meet different well types and construction requirements.

 

Working Pressure

1. Ball Float Structure

• Working pressure range: 20–30 MPa
• Suitable for conventional cementing operations, simple and reliable structure, stable sealing performance.

2. Forced Spring Return Type

• Working Pressure Range: 25–35 MPa
• Utilizes a spring-assisted return design to improve valve response speed, suitable for high-pressure and complex operating environments.

 

Customization Notes

• Different steel grades can be selected according to customer needs to meet the strength requirements of special well conditions.
• Supports customization of multiple pressure ratings and thread types, compatible with different standard interfaces.
• Material and structural optimization designs can be performed for special environments (high temperature, high corrosion, etc.).