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EPIC™ Riser Repair Clamp

Typical challenges

Do any of these apply to your flexible risers?

  • You have an outer sheath breach either above or below sea level that requires a repair
  • You lack a good solution to document to maintain your riser integrity
  • You need a cost effective solution easily and safely installed either by rope access (above sea level) or by ROV or divers (subsea)

Key benefits

A riser clamp repair may be required based on findings from annulus testing, ROV inspection, or visual inspections. The most common findings are a damaged outer sheath or blocked vent ports. 4Subsea provides repair solutions that can be installed without any loss of production time. We may also undertake overall project responsibility for such projects. The patent pending EPIC™ clamping solutions are currently in use on several installations on the Norwegian and British continental shelf, the Dutch sector, and in Africa.

  • EPIC™ clamps are designed for long lifetime in harsh offshore
    environments and designed in accordance with Eurocode and NORSOK
    requirements to ensure long lifetime.

  • 4Subsea offers long-term repair solutions to reduce risk of pipe failure and ensure maintained production.

  • 4Subsea provides repair solutions that can be installed without any loss of production time. We may also undertake overall project responsibility for such projects and perform a fit-for-service assessment of the flexible riser, taking into account the characteristics of the damage, the amount of incurred corrosion and pipe dynamics to document the remaining design life of the flexible pipe.

Key Features

A riser clamp repair may be required based on findings from annulus testing, ROV inspection, or visual inspections. The most common findings are a damaged outer sheath or blocked vent ports. 4Subsea provides repair

  • Made of steel plate with rubber sealing for repair of outer sheath breach
  • Clamps can be delivered with vent port(s) for re-establishment of annulus ventilation
  • Customized to riser outer diameter and size of damage
  • Produced in Super Duplex, 6 Mo, or 316SS material
  • Light weight design with long lifetime
  • EPICTM ROV clamp is designed for ROV installation, and the operation is performed with a standard work class ROV
  • EPIC™ clamps are designed for long lifetime in harsh offshore environments, and is normally installed by climbers or from scaffolding
  • Clamps may be installed both as temporary and permanent solutions

Watch a short video demonstrating riser repair subsea:

The EPIC™ Clamp Repair Series

4Subsea offers long-term clamp repair to reduce risk of pipe failure and ensure maintained production. The EPIC™ series provides safe and cost effective outer sheath repair solutions for flexible risers and flowlines. The repair can be performed with no riser downtime and low installation time.

  • Our clamp repair system seamlessly integrates with remotely operated vehicles (ROVs), enabling swift and precise installation even in challenging subsea environments. Equipped with cutting-edge technology, it ensures efficient repair solutions without the need for diver intervention, minimizing operational risks and enhancing project timelines.

  • For subsea repairs requiring a more hands-on approach, our clamp repair series offers compatibility with diver installations. Engineered for reliability and ease of use, it facilitates seamless deployment and secure fastening, empowering divers to execute repair tasks with confidence and precision, even at considerable depths.

  • In topside applications where subsea access is not required, our clamp repair system offers a manual installation option. Designed for simplicity and efficiency, it enables quick and straightforward installation by onsite personnel, minimizing downtime and maximizing operational efficiency for topside repair scenarios.

  • Beyond standard repair solutions, our Epic Clamp Repair Series offers customized options tailored to specific needs. Whether it’s a bespoke repair clamp for addressing leakage in riser end-fittings, re-establishing annulus vents, or incorporating monitoring clamps for equipping sensors or other equipment, our team is equipped to deliver tailored solutions to meet your unique requirements with precision and reliability.

Get in touch

Please feel free to contact us about our solutions or request a demo. We look forward to hearing from you!

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