Asset Type
Subsea Crude Oil Pipeline
Build Location
South Korea
Final Location
Offshore South Korea
Project Phases
On-Line Leak Repair, Diver Deployment, Commissioning
Clamp Size
42" (follow-up project 36")
Lead Time
8 weeks from enquiry to execution
A crude oil unloading system, located 3 km off the southwest coast of South Korea, suffered damage due to a misaligned 42" flange 40 metres below sea level. The leak required urgent attention, but the subsea location created significant technical challenges:
Repair had to be completed on-line, with no disruption to production.
Solution needed to be diver-friendly for safe installation.
Time was critical – every delay increased operational costs.
Hydratight responded with its Subsea Leak Sealing Clamp technology, part of a suite of On-Line Leak Sealing services. Key advantages included:
Diver-friendly design
Compact, low-profile clamps that could be installed quickly and safely.
Rapid deployment
From initial enquiry to on-site execution in just eight weeks – compared to 12 months for the nearest competitor.
Full-service solution
Included scoping, design, custom manufacturing, diver training, and logistics.
Quality assurance
Delivered a DNV GL-approved permanent seal, maintaining production and environmental compliance.
Leak sealed permanently without halting production.
Project executed four months ahead of competitor timelines.
Immediate cost savings for the operator through reduced downtime and avoided environmental risk.
Follow-on project awarded in the North Sea, demonstrating confidence in Hydratight’s speed and technical expertise.
When time, safety, and reliability matter, Hydratight delivers innovative subsea solutions with proven expertise. Discover how we can protect your assets and maintain uninterrupted production.
