Professional API Thread Protectors – Safeguarding the Safety and Performance of Your Tubular Goods

Oil casing thread protector

Oil casing thread protectors are essential protective devices in the petroleum industry, designed to safeguard the threads of casing, tubing, and other tubular products from impact and corrosion during production, transportation, and storage. They are typically manufactured from plastic steel, All-Plastic, or steel-plastic composite materials, conforming to industry standards such as API Spec 5CT, meeting conventional onshore oilfield storage requirements, and also withstanding harsh environments such as offshore platforms with high salt spray and deep well operations involving extreme temperatures, delivering a customized protection solution for oil casing threads across diverse operating conditions.

Material: steel-plastic composite, plastic (HDPE)

Features

• Material characteristics:
  • Engineering Plastics (HDPE/PPA) Core Features: lightweight (weight per unit ≤2.5 kg), labor-saving installation and removal, resistant to acid and alkali corrosion, cost-effective
  • Composite Type (ASM (CEL/CENL)) Core Features: integrates the lightweight benefits of plastics with the impact resistance of metals, includes a built-in reinforcing rib structure, enhanced sealing performance
• Compatible specifications

  The compatible specifications are as follows:

  • Standard Outer Diameter Specifications: 4-1/2", 5-1/2", 7", 9-5/8", 10-3/4", 13-3/8", 18-5/8", 20", 24"
  • Compatible thread types: BTC (Buttress Thread), LTC (Long Round Thread), STC (Short Round Thread), VAM (Special Thread, Customized)
• Product application:

  This product is an essential accessory for petroleum casing, drill pipe, drill string, and similar tubular products, providing protection for steel pipe threads. Prevents damage to thread ends during handling, transportation, and warehouse storage.

Specifications

Quick Release Thread Protector

Quick release thread protector is designed for rapid coverage of petroleum casing threads, preventing damage caused by impact during handling and transportation.

Manufactured from polymeric materials with excellent weather resistance and lightweight properties, it reduces labor intensity. The product enables fast wrapping and releasing of threads with simple operation, suitable for diverse application scenarios, ensuring stable and reliable quality.

Features:

• Environmental adaptability
  • Oil Resistant, Low Temperature Resistant, High Temperature Resistant
  • UV Resistant, Aging Resistant
  • Suitable for Desert, Coastal, and Cold Region Oilfields
• Superior thread protection performance
  • Elastic Materials (NBR, PU) Securely Fit the Threads
  • Effectively Prevents: Impact Deformation, Thread Damage, Sand and Mud Ingress, Oil Corrosion
• Reusable
  • Fatigue Resistant, Resistant to Cracking
  • Can Be Installed and Removed Multiple Times without Loosening or Slipping
• Compatible with

  API Standard Threads, Special Coupling Types, Multiple Coupling Types including Oilfield 1502 / 602

Specifications:

Union Thread Protector

Union thread protector is a specialized protective accessory designed for threaded connections in petroleum drilling operations. It is commonly applied to high-pressure mud pipes, oil pipelines, and similar tubular connections to prevent thread damage. It fully complies with applicable API standards and petroleum coupling industry requirements.

Features

• Efficient thread protection: Covers the entire union thread to prevent impact deformation, thread damage, and contamination
• Common materials: High-strength plastics (PE / PP / PA), steel, or composite materials, designed to withstand frequent on-site handling and impact.
• Adapted for harsh conditions: High temperature resistant, low temperature resistant, oil-resistant, and aging resistant. Suitable for desert, cold regions, and marine high-salinity environments.
• Warehouse: Prevents corrosion caused by humid environments, as well as sand, dust, and mud ingress into threads. Suitable for oilfield warehouses and port stockyards.

On-site construction and maintenance

• Used for Making-up and Breaking-out, and Rapid Replacement during Oilfield Operations
• Reduce difficulties in threading, jamming, and cross-threading
• Improve on-site construction efficiency and safety

Specification

1”-1502 、 2”-1502 、 3“-1502 、 4”-206 、4”-602

Applicable to standard joints (threaded connections) with specifications including:FIG100, FIG200, FIG 206, FIG 400, FIG 402, FIG 602, FIG 1002, FIG 1502, and other specified joints

Applicable to welded joints with specifications including: FIG 602, FIG 60, FIG 1002, FIG 1502, FIG 2002, and other specified joints

Applicable to sulfide-stress cracking resistant welded joints with specifications including: FIG 602, FIG 1002, FIG 1502, FIG 2202, TR120×6, TR150×6, TR180×8, and other specified joints

Inflatable Thread Protector

Inflatable thread protector is installed at the threaded ends of casing and tubing to protect the thread ends during drilling and workover operations. Its pneumatic operation relies on rig air pressure (72-130 PSI, or 496-896 KPa) to ensure compliance with all API standards and to provide reliable protection for premium thread connections.

Structural composition

• Housing: High-strength rubber or composite elastomer, tear-resistant, oil resistant, and aging resistant
• Inflatable chamber: Internal sealed airbag structure provides radial expansion force upon inflation
• Inflation valve: Check valve or quick-connect valve compatible with standard inflation tools
• Sealing contact layer: Direct contact with the thread to prevent hard contact damage

Features

• Non-engaging protection: Does not engage with the thread to avoid wear or galling caused by repeated screwing
• Excellent sealing performance: Tightly seals upon inflation; waterproof, dustproof, and salt spray resistant, suitable for maritime transport and long-term storage
• Quick and safe installation: Inflate to secure, deflate to remove; simple, safe, and efficient operation
• Suitable for complex environments: High temperature resistant, low temperature resistant, oil resistant, mud resistant, aging resistant, UV resistant
• Broad compatibility: a single protector fits a range of pipe diameters, reducing inventory requirements

Specifications