Blast Joint

1）Blast Joints are heavy wall tubes which are run as an integral part of the tubing string. The purpose of a Blast Joint is to minimize the effect of external erosion action. Blast Joints can be located opposite to perforations in dual completions or directly below the tubing hanger in sand frac situations.
2）A Blast Joint is a heavy-duty, wear-resistant component used in oil and gas well operations to protect tubing, casing, or drill strings from erosion, corrosion, and high-velocity fluid impacts in harsh downhole environments. Installed in critical zones (e.g., across perforations or abrasive formations), it extends equipment lifespan by shielding vulnerable sections from sand, proppants, or corrosive fluids. Compliant with API 5CT/7-1 standards, blast joints are essential for maintaining well integrity in high-pressure, high-temperature (HPHT), and sour service applications.

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Key Features

• Robust Construction

  Made from high-grade alloy steel, stainless steel, or corrosion-resistant alloys (CRAs) like Inconel®.

• Erosion/Corrosion Resistance

  Hard-faced surfaces or tungsten carbide coatings mitigate wear from abrasive fluids.

• HPHT Compatibility

  Engineered to withstand pressures up to 20,000 psi and temperatures exceeding 350°F (177°C).

• API Compliance

  Manufactured to API 5CT/7-1 specifications for dimensional accuracy and performance.

• Customizable Designs

  Available in varying lengths, OD/ID sizes, and connection types (e.g., API threaded, flanged).

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 Comment & FAQ

1. How does a blast joint differ from standard tubing?

A: It features reinforced materials and coatings to withstand extreme erosion/corrosion, unlike regular tubing.

2. Can blast joints be retrofitted into existing well strings?

A: Yes – they are designed for easy integration with standard API connections.

3. What’s the typical lifespan of a blast joint?

A: Varies by application, but typically 2–5x longer than unprotected tubing in abrasive conditions.

4. Are non-API sizes available?

A: Yes – we offer custom OD/ID and connection designs for specialized applications.

5. Do you provide testing reports?

A: Yes – material certifications are included.

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Technical Specifications

| Advantages

✅ Extended Equipment Life

Reduces replacement costs by protecting tubing/casing in abrasive or corrosive zones.
✅ Enhanced Safety

Prevents leaks and failures in HPHT or sour (H₂S) environments.
✅ Operational Efficiency

Minimizes downtime caused by erosion-related repairs.
✅ Versatility

Suitable for vertical, horizontal, and multilateral wells.

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 Data Sheet

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Applications

• Hydraulic Fracturing: Shields tubing from high-velocity proppant-laden fluids.

• Sand Control: Protects completion strings in sandy reservoirs.

• Sour Gas Wells: Resists H₂S-induced corrosion in sour service applications.

• Coiled Tubing Operations: Used in abrasive cleanout or milling jobs.