Subsea Umbilicals
Subsea Umbilicals serve as the “lifeline” connecting surface facilities to subsea production systems in offshore oil and gas developments.
They integrate hydraulic control lines, chemical injection tubes, power cables, and fiber optics within a single cross-section.
As a remote extension of downhole production systems, they provide power while facilitating critical formation data feedback and wellhead safety control.
| Components | Materials & Specifications | Materials & Specifications |
|---|---|---|
|
Steel Tubes
|
Super Duplex / 316L / Alloy 825
|
High-pressure hydraulic/chemical transport; superior seawater corrosion resistance.
|
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Thermoplastic Hoses
|
Reinforced Polyamide / Polyurethane / PVDF
|
Flexible conduits for hydraulic control and fluid injection in shallow to mid-water applications.
|
|
Power Cores
|
Copper Conductor + XLPE/EPR Insulation
|
Reliable power delivery to subsea pump motors and Subsea Control Modules (SCM).
|
|
Fiber Optics |
Fiber In Metal Tube (FIMT) – Stainless Steel
|
Long-distance, high-bandwidth data telemetry and real-time sensing.
|
|
Armor & Fillers |
PE/PP Fillers + Galvanized Steel Wire Armor
|
Maintains sectional roundness and provides high tensile strength for deepwater deployment.
|
Downhole Chemical Injection
Delivers methanol or scale inhibitors deep into the wellbore via integrated stainless steel capillary tubes.
SSSV Control
Provides high-pressure hydraulic power to ensure Subsurface Safety Valves can be rapidly closed in emergencies.
Intelligent Completion Support
Provides continuous power and signal connectivity for Inflow Control Valves (ICVs) and permanent monitoring systems.
| Parameter | Typical Range / Options |
|---|---|
|
Operational Water Depth |
Rated for deepwater and ultra-deepwater environments up to 3,000m.
|
|
Design Life |
Robust engineering for a service life of 25 – 30 years. |
|
Design Pressure |
Capable of handling extreme internal pressures up to 15,000 psi (1,034 bar). |
|
Dynamic Performance |
Optimized Fatigue & Torque Balanced design for floating production systems (FPSO/FLNG).
|
Full-System Continuity
Comprehensive testing of all hydraulic, chemical, and electrical functional elements over the entire umbilical length.
Hyperbaric Pressure Simulation
External pressure testing to verify resistance to extreme hydrostatic loads in ultra-deepwater.
Termination Load Test
Verification of the umbilical-to-connector interface to ensure mechanical and functional reliability under tension.
