Case Study: Automated Drill Pipe Internal Coating Line for the Oil & Gas Industry
Discover how CoatTech provides customized automated internal coating and handling systems for heavy drill pipes, ensuring precise centering, seamless transfer, and perfect anti-corrosion curing for Middle East oilfield projects.
The Challenge: Handling Heavy Pipes for Precision Coating
In the oil and gas industry, drill pipes require rigorous internal anti-corrosion coating (such as liquid epoxy or FBE). The major challenge is handling these heavy, elongated tubulars efficiently while ensuring the absolute precision required for internal lance spraying. Traditional manual or semi-automated methods often result in handling damage, safety risks, and uneven coating due to misalignment.
The CoatTech Solution: Seamless Automation & Precision
To address the specific requirements of heavy-duty pipe internal coating (like our recent customized project for the Triangle Oilfield in Egypt), CoatTech engineered a fully automated material handling and coating system.
Here are the core technical highlights of our custom system:
1. Automated Heavy-Duty Step-Beam Transfer: We replaced traditional rolling racks with a synchronized step-beam mechanism. This ensures heavy drill pipes are smoothly indexed, separated, and transferred horizontally without violent collisions, protecting the pipe threads and external surfaces.
2. Dual-End Precision Clamping & Centering: For flawless internal coating, the spray lance must remain perfectly centered inside the pipe. Our customized dual-end clamping system securely lifts and aligns each pipe to an absolute horizontal axis, eliminating vibrations during the high-pressure internal spraying process.
3. Space-Saving Overhead Conveying for Curing:
After coating, the pipes are automatically transferred to a heavy-duty overhead chain conveyor. This vertical suspension method maximizes workshop floor space and allows for 360-degree uniform heat distribution in the curing oven, ensuring the anti-corrosion layer cures perfectly without support marks.
Project Highlights & Technical Specifications
| Project Parameter | Specification / CoatTech Solution |
| Application Industry | Oil & Gas, Petrochemical (e.g., Triangle Project) |
| Workpiece Type | Heavy Drill Pipes, Oilfield Tubulars |
| Core Process | Internal Anti-Corrosion Coating |
| Handling Mechanism | Step-beam transfer, Overhead chain conveyor |
| Positioning Method | Dual-end automated clamping and centering |
| Key Benefits | Zero handling damage, 100% centralized spraying, High curing uniformity |
Why Choose CoatTech for Custom Industrial Coating Lines?
With extensive experience in designing intelligent equipment for overseas markets (from the Middle East to Southeast Asia), our engineering team specializes in tailoring material handling and coating systems to your specific workpiece dimensions and production cycle times.
The CoatTech Solution: Seamless Automation & Precision,please click here
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