External Sleeve pipeline repair

During pipeline operation, corrosion and damage inevitably occur, necessitating timely repairs. Improper handling or delays in addressing these issues may lead to severe consequences.

Conventional repair methods include pipe replacement, welding, and clamp reinforcement. However, pipe replacement involves substantial engineering work, is time-consuming, and costly. For pipelines conveying flammable or explosive media, welding poses significant safety risks due to spark generation. Moreover, welding thin-walled pipes with multiple leak points carries a high risk of burn-through and may readily cause hydrogen embrittlement and cold cracking.

With the advancement of carbon fiber reinforcement technology, its applications have become increasingly widespread. This technology enables strength restoration of damaged pipeline sections without interrupting production, offering multiple advantages: no hot work required, continuous operation during repairs, online rapid repair capability, operational safety, minimal crew requirements, no need for heavy equipment, and cost-effectiveness. Most importantly, since this technology eliminates welding on in-service pipelines, it completely avoids risks associated with burn-through, hydrogen embrittlement, and cold cracking.

The carbon fiber repair system provides a reliable alternative that meets industry standards including ASME PCC-2 and ISO/TS 24817, while maintaining pipeline integrity and extending service life. This innovative solution is particularly valuable for high-risk environments where traditional welding repairs are prohibited or impractical. Field applications demonstrate its effectiveness in restoring full pressure containment capability while significantly reducing downtime compared to conventional methods. The non-metallic composite materials also provide excellent corrosion resistance, making them suitable for various operating conditions across multiple industries.