SAFE Disc
At-source detection
Page last modified
November 10 2025
Using its Passive Trigger technology, Sentinel has developed SAFE Disc. Deployable via ROV or installed permanently on subsea infrastructure, SAFE Disc is a visual indicator system that provides immediate field-based indication and characterisation of subsea emissions mitigating the need to sample and send back to shore for testing.
SAFE Disc™ is designed to provide a clear and simple visual indication when a specific material is detected in the subsea environment. Triggers include CO2, thermogenic gas, liquid hydrocarbons, and from other subsea fluids to fluids in the subsea environment.
Rapid results: SAFE Disc™ helps operators characterise subsea emissions at source, avoiding delays and reducing movement of dangerous material
Cost reductions: Removes the need to transport samples topside or onshore, significantly reducing wait times for results and reducing test costs
Enables Compliance: Operators can assess situations (e.g., thermogenic vs biogenic source) immediately and take corrective action faster if required
Pros & Limitations
1
Characterise emissions at source, avoiding delays and reducing movement of dangerous material
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At source characterisation significantly reduces costs associated with transport and onshore testing
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Operators can assess situations (e.g., thermogenic vs biogenic source) immediately and take corrective action faster if required, enabling compliance with industry regulations
Specification
| Title | Description |
|---|---|
| Theme/Discipline | Emission Monitoring |
| Core Tech | Leak Detection |
|
Deployment type
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Permanent installation onto subsea infrastructure or deployable via ROV
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Detection materials
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CO2, thermogenic gas, liquid hydrocarbons, and other subsea fluids
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Applications
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All stages of well lifecycle including exploration, development, production, late-life, decommissioning, and carbon capture
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Technology Readiness Level
The Technology Readiness Level (TRL) indicates the maturity level of novel technologies. Learn more about the TRL scale used by us.
[4/9]
Development
Technology demonstration
Mature / Proven
Committed to delivering asset integrity confidence, Sentinel's innovative passive systems enable operators to continuously monitor and manage subsea assets.
Deployable across the full asset lifecycle, the WellSentinel™ and SAFE Disc™ systems utilise Sentinel's proprietary Passive Trigger technology to detect the presence of oil, thermogenic gas, CO₂, and other fluids in the subsea environment.
Deployed globally, Sentinel's field-proven technologies reduce monitoring OPEX by up to 80%, decrease vessel-based operations, streamline decommissioning, support asset life extension and exemplify regulatory compliance.
With over 100 years of collective industry experience and a proven global track record, Sentinel is a trusted partner in subsea integrity assurance, combining extensive industry expertise with a strong commitment to supporting the offshore industry.
Country of Headquarters
United Kingdom
Contact:
07739355351
Visit website
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