Overview
Unique Group offers world-class Emergency Pipeline Repair Systems (EPRS) that restore structural integrity to damaged or leaking subsea pipelines. Designed in accordance with international offshore codes such as DNV-RP-F113 and DNV-OS-F101, our EPRS solutions are trusted by global operators to minimize production downtime, prevent environmental incidents, and maintain operational continuity with speed and confidence.
From pipeline clamps and connectors to installation tooling and verification systems, each solution is engineered to meet site-specific needs—whether deployed by ROV at deepwater depths or installed by divers in shallow environments.
Key Components of Our EPRS Solutions
- Structural Pipeline Repair Clamps: Grip and seal damaged sections of pipe to restore mechanical and pressure integrity.
- Sealing-Only Clamps: Designed to isolate and seal non-structural leaks.
- Split Sleeve Connectors: Used with spool sections to replace compromised pipe segments.
- End Plugs: Provide secure sealing during isolation or abandonment operations.
- Installation & Activation Tooling: ROV or diver-compatible, with remote hydraulic control capability.
- Testing & Seal Verification Equipment: For factory and subsea pressure testing, including dual-seal cavity pressurisation.
Technical Strengths
- Certifications: Compliant with DNV-RP-F113, DNV-OS-F101, and NORSOK M-501 System 7B
- Design Life: 25 years
- Service Conditions:
- Sweet and sour service variants available (Inconel-lined internal components for H2S environments)
- Suitable for pressures up to 600 bar.g
- Designed for deployment in depths up to 2000m
- Materials: Forged or plate materials depending on lead time requirements and certification level
- Installation: Compatible with diver or ROV intervention, depending on depth and project needs
Custom Engineering to Match Pipeline Specifications
Each system is tailored to your operational requirements. We consider:
- Nominal Pipe Size: 4″ to 48″
- Wall Thickness & Material Specification: Tailored to pipeline design.
- Flange Pressure Ratings: ANSI #900, #1500, etc.
- Fluid Media: Sweet gas, sour gas (H2S tolerance), oil
- vDepth & Access Constraints: Determines installation method and tooling
- QA/QC Requirements: Third party certification, factory testing, and documentation
- Client-Specified Lead Times: Standard vs accelerated manufacturing paths (e.g., plate material option for rapid deployment)
Typical Use Cases & Scenarios
- Emergency response to pipeline damage from anchor drag or dropped objects
- Long-term isolation and sealing of degraded or corroded pipe sections
- Restoration of pressurized systems during unplanned shutdowns
- Spool replacement using paired connectors and custom-fit spools
- Rapid deployment via ROV in deepwater fields where diver access is limited
Engineering & Testing Excellence
- Factory Acceptance Testing (FAT): Performed with client-supplied pipeline samples where possible
- Seal Verification: Dual-seal cavity pressure testing ensures proper engagement before commissioning
- Installation Tooling: ROV skids, diver tools, and hydraulic supply options based on project design
- Storage & Transport: Modular skids and pallet-style racks support easy inspection and quick mobilisation
- Modular Inventory: Common components shared across clamp and connector designs to streamline spare part management
Why Choose Unique Group’s EPRS?
- Proven EPRS installations across global offshore projects
- Deep engineering expertise in harsh subsea environments
- Comprehensive product range: clamps, connectors, tooling, test kits
- Full compliance with global offshore pipeline standards
- Scalable solutions from isolated repairs to large-diameter pipelines
Speak to our engineering team to customise your solution today.
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