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Low Insulation Resistance in Your Subsea Systems?

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If insulation resistance is declining due to water ingress, there are intervention-free ways to recover performance—without shutdown or subsea intervention.

Up to 200× insulation resistance recovery has been achieved in live offshore systems

Achieved using V-LIFE

Overview

V-LIFE is an intervention-free subsea electrical protection technology designed to restore insulation resistance in degraded systems affected by water ingress.

It operates without shutdown or subsea intervention, helping operators stabilise electrical performance and extend the operational life of critical subsea assets.

Insulation resistance decline is a known failure mode in subsea cables and umbilicals

In subsea electrical systems, insulation resistance degradation is typically driven by long-term water ingress and environmental exposure.

You may already be seeing:

  • Downward IR trends over time
  • Increased leakage current
  • Reduced confidence in system integrity margins

At this stage, the technical challenge is usually clear. The uncertainty is whether the system can be stabilised—or whether intervention is inevitable.

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Insulation resistance can be increased without subsea intervention

V-LIFE is a subsea electrical protection system designed to support recovery of insulation resistance in circuits affected by water ingress.

It is deployed via topside-installed V-LIM hardware and can be activated remotely while the system remains in service.

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Active insulation resistance recovery

  • Applies a controlled low-voltage conditioning signal to increase low insulation resistance
  • Supports stabilisation and recovery of insulation performance over time

Intervention-free protection

  • Protects subsea electrical systems without vessel mobilisation or hardware replacement
  • Eliminates the need for costly offshore intervention campaigns

Remote activation and control

  • Activated through installed V-LIM or V-SLIM monitoring hardware
  • Enables remote deployment and control via PlatformVi

Ongoing system protection

  • Prevents further insulation degradation at points of water ingress
  • Maintains safe, stable system operation in harsh subsea environments

Case Study

200× Insulation Resistance Recovery in Live Subsea System

In a Gulf of America deployment, a subsea production control system experienced insulation resistance decline to approximately 460kΩ due to water ingress.

V-LIFE was deployed using topside-installed hardware, allowing activation without any subsea intervention.

Following activation:

  • Insulation resistance increased by ~100× within 24 hours
  • Improvement exceeded 200× within one week
  • Performance stabilised above 100MΩ over the longer term

This enabled continued operation and reduced the immediate need for offshore intervention or system replacement.

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Talk to our team about V-LIFE

Concerned about declining insulation resistance? Contact our team to discuss recovery potential and whether V-LIFE is right for your subsea system.

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