1. Project Overview

In the global oil and gas sector, few names carry as much weight as the Abu Dhabi National Oil Company (ADNOC). Known for its extensive upstream and downstream operations, ADNOC plays a central role in the UAE’s energy sector, driving economic growth and technological progress.
One of its key development projects — the ADNOC Onshore One Tie-In Program — focuses on enhancing onshore pipeline connections to improve efficiency, reliability, and throughput in oil and gas transport.
Shanghai Feiting Pipe Manufacture Co., Ltd. was entrusted to supply a comprehensive package of piping components, including elbows, reducers, tees, and weldolets, for this strategically important project. Our role was to ensure that every fitting met stringent ADNOC specifications, international standards, and the demanding conditions of UAE’s oil and gas environment.

2. Client Information – ADNOC Onshore

ADNOC Onshore is a subsidiary of the Abu Dhabi National Oil Company, responsible for the development and production of crude oil from onshore reserves. Its operations span vast oil fields, producing hundreds of thousands of barrels per day, and form a critical part of ADNOC’s upstream portfolio.
The One Tie-In Program involves expanding and upgrading pipeline tie-ins, which connect field facilities to the main pipeline network, enabling smooth transfer of oil and gas to processing and export facilities.

3. Project Location and Significance

Located in the United Arab Emirates, the ADNOC Onshore One Tie-In Program is more than an infrastructure upgrade — it’s a key step toward future-proofing the country’s oil and gas transportation system.
Pipeline fittings such as elbows, reducers, tees, and weldolets are vital for ensuring safe and efficient flow through the network. These components must be manufactured with precision to withstand high pressures, extreme temperatures, and the corrosive nature of hydrocarbons.

4. Our Role and Supply Scope

Shanghai Feiting Pipe Manufacture Co., Ltd. supplied a total of 3,581 pieces of high-quality piping fittings for the project. Every component was produced according to strict technical requirements and applicable ASTM standards.
Supply Summary:
- Products: Elbow, Reducer, Tee, Weldolet
- Materials:
  * ASTM A105/A105M A105N
  * ASTM A182/A182M F316/316L
  * ASTM A234/A234M WPB
  * ASTM A403/A403M WP316/316L
  * ASTM A420/A420M WPL6
  * ASTM B366/B366M N08825
  * ASTM B564 N08825
- Size Range: OD 1/2” – 12”
- Quantity: 3,581 pieces
- End User: Abu Dhabi National Oil Company

5. Technical Excellence in Manufacturing

Every fitting manufactured for ADNOC Onshore underwent rigorous production and inspection processes to meet both international codes and ADNOC’s specific standards.
Manufacturing Highlights:
- Material Verification: Full traceability from mill certificates to finished products.
- Forming Processes: Forging, pressing, and machining tailored to each fitting type.
- Heat Treatment: Normalizing and solution annealing where required to achieve optimal mechanical properties.
- Dimensional Control: Precision machining to ensure perfect fit during site installation.
- Non-Destructive Testing (NDT): Including UT, RT, PT, and MT to verify weld and base material integrity.
- Corrosion Protection: Surface treatment and protective coatings applied as per ADNOC specifications.

6. Key Products and Their Functions

1. Elbows – Allow directional changes in pipelines while minimizing flow resistance.
2. Reducers – Enable smooth diameter transition between pipes of different sizes, maintaining flow efficiency.
3. Tees – Facilitate branching of flow in process piping systems.
4. Weldolets – Provide branch connections to existing pipelines with enhanced strength.
Each product was manufactured in compliance with ASTM and MSS-SP specifications, ensuring compatibility and durability in service.

7. Challenges and Solutions

a) Material Diversity
Multiple material grades, including carbon steel, stainless steel, and nickel alloys, were required in varying sizes.
Solution: Established parallel production lines to handle each material category simultaneously.
b) Compliance with ADNOC Standards
ADNOC enforces stringent requirements for chemical composition, mechanical properties, and dimensional tolerances.
Solution: Close coordination between our QC department, third-party inspectors, and ADNOC representatives throughout production.
c) Delivery Schedule
The project’s construction timeline required timely delivery without compromising quality.
Solution: Implemented a staged manufacturing and shipping plan to ensure critical items reached site ahead of schedule.

8. Quality Assurance & Documentation

Shanghai Feiting Pipe Manufacture Co., Ltd. maintains a robust quality management system in line with ISO 9001. For this project, we provided ADNOC with:
- Full material traceability and heat numbers
- Inspection & Test Plans (ITP) approved by the client
- Dimensional inspection reports for all fittings
- NDT reports and certificates
- Packing lists and export compliance documentation

9. Client Benefits

By partnering with Shanghai Feiting Pipe Manufacture Co., Ltd., ADNOC Onshore benefited from:
- High Reliability: Products engineered for long service life in harsh oilfield conditions.
- Reduced Downtime: Precision manufacturing ensured smooth installation with minimal adjustments.
- Cost-Efficiency: Competitive pricing without compromising performance.
- Global Standards Compliance: Full adherence to ASTM and ADNOC specifications.

10. Conclusion

The ADNOC Onshore One Tie-In Program highlights the critical role of high-quality piping components in oil and gas infrastructure. By delivering 3,581 precision-engineered fittings across a wide range of materials and sizes, Shanghai Feiting Pipe Manufacture Co., Ltd. contributed to the safe, efficient, and timely completion of this key UAE project.
Our continued collaboration with industry leaders like ADNOC demonstrates our commitment to excellence, reliability, and long-term partnerships in the global energy sector.

Project Summary Table