The "Hidden Circuit" Risk:
When Digital and Physical Diverge
Feature
Before Circuitizing
After Circuitizing
Strategy
Inspectors chase random locations.
Circuits guide inspection plans, though subtle differences within a circuit (such as dead legs) may require special attention.
Data Usage
Scattered data that is hard to trend.
Thickness readings are trended by specific CMLs (Condition Monitoring Locations) belonging to the pipe.
Risk Awareness
Uncertain coverage of high-risk areas.
Specific degradation mechanisms for each line are known.
Intervals
Intervals are based on guesswork.
Intervals are set by circuit-specific risk.
A “hidden circuit” occurs when the digital record (the “digital twin”) no longer reflects the physical asset. This discrepancy often stems from failures in the application or upkeep of the Bill of Materials (BoM) or Management of Change (MOC) processes.
- Causes of Data Mismatch: Discrepancies arise from unscheduled quick repairs, using incorrect spare parts, incorrect material selection or misidentification, and failing to “evergreen” data after field changes.
- Consequences: These errors don’t stay digital; they manifest as elevated corrosion rates, the activation of unanticipated degradation mechanisms, or unplanned shutdowns and failures.
- The Solution: Maintaining a robust Asset Integrity Management (AIM) System is essential to ensure that design specifications, repair history, and risk assessments accurately match the physical unit.
Best Practices for Effective Circuitization
To ensure circuits remain a “lens that brings piping risk into focus”, the following practices should be implemented:
- Define by Mechanism, Not Length: Practically, corrosion circuits are defined based on 1 or more degradation mechanisms, not by the length of the pipes.
- Involve Operations: Operating teams know the process transitions and historical upsets that define a circuit’s true environment.
- Field Validation: Physically walking the circuits is mandatory to confirm that boundaries match the piping and to catch unrecorded changes like added drains or bypasses.
- Keep it Living: The digital record must be updated whenever there are changes in process, materials, or newly discovered damage mechanisms.
Contact us today to learn more about our comprehensive software solutions and start streamlining your asset management operations.