When existing pipelines fail — we fix without replacing

A pipeline operator's worst conversation is "we need to shut the line down to repair it." For most external corrosion damage, mechanical wear, dents, or even small leaks, we can restore the line to design pressure without taking it out of service. Our pipeline repair service covers everything from emergency leak sealing to long-term composite reinforcement.

What we repair

  • External corrosion losses — wall-thickness reductions up to 80% can be restored to MAOP using composite wraps
  • Mechanical damage — dents, gouges, third-party damage from excavation
  • Through-wall leaks — emergency sealing for pinhole leaks or weld defects
  • Coating failures — re-coating of areas where the original 3LPE/FBE has disbonded
  • Riser corrosion — splash-zone and atmospheric-zone repairs on offshore platforms
  • Field-joint failures — re-sealing of HSS joints that have lifted

Repair systems we deploy

Composite reinforcement wraps

Glass-fibre or carbon-fibre composite layers bonded with structural epoxy. Restore burst pressure on corroded sections; qualified to ASME PCC-2, ISO 24817, DNV-RP-F113. Installable in service without shutdown.

Steel sleeves (Type-A or Type-B)

Welded full-encirclement steel sleeves for higher-pressure or weld-defect repairs. Type-B sleeves can hold pressure even through a leak.

Cold-applied repair tapes

Visco-elastic and butyl tapes for non-pressure-bearing repairs to coatings and atmospheric corrosion.

Liquid epoxy patch repairs

Two-component liquid epoxy for restoring localized coating damage, mill defects and HSS failures. Same chemistry as our mainline systems.

Internal sleeve liners

For internal corrosion damage, we deploy cured-in-place epoxy or mechanical sleeve inserts at the affected section.

Our repair workflow

  1. Site assessment — UT thickness mapping, MFL inspection data review, defect characterization
  2. Repair system selection — match the failure mode and operating conditions to the right repair option
  3. Surface preparation — power-tool or abrasive cleaning to Sa 2½ at the repair zone
  4. Application — composite layup, sleeve welding or epoxy patching as specified
  5. Verification — adhesion test, visual inspection, hydrotest where applicable
  6. Documentation — repair record with location coordinates, photos, materials traceability

Standards we qualify to

  • ASME PCC-2 — repair of pressure equipment and piping
  • ISO 24817 — composite repairs of pipework
  • DNV-RP-F113 — pipeline subsea repair
  • API 2200 — repair of crude oil, LPG and product pipelines
  • NACE SP0102 — in-service inspection of pipelines

Common questions

Can you do this without depressurizing the line? For composite wraps, yes — the line can stay at MAOP throughout the repair. For Type-B steel sleeves over leaks, the line is depressurized briefly during welding.

How long does a repair last? Composite wraps are qualified for 20+ year design life when properly engineered. Steel sleeves are permanent.

Emergency response time? We maintain emergency repair stocks at our facility. For Gulf-region projects, we can be on-site within 24-48 hours of a confirmed leak call.