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Alarm and Tuning Systems

Alarm System - Advanced Warnings

Real-Time Mode
- Additional to the conventional alarms in control system
- Alarms triggered by model-based instrumentation
  or edpm advisors
- Alarms available in edpm GUI and/or integrated
  into external GUI

Look-Ahead/Forecasting Mode
- Early alarm predictions
- Simulations into the future including operational changes

Tuning System

Automatic Tuning
- Pipeline friction
- Pipeline heat transfer / ambient temperature
- Reservoir pressure, temperature and composition
- Automatic flow tuning

Manual Tuning
- Encompass variation from design input and actual plant
- Account for larger model discrepancies

edpm Alarm Examples

  • Pipeline leakage
  • Risk for hydrate formation
  • Pig/scraper arrival (e.g. pig 20 minutes away from pig receiver)
  • Lack of inhibitor
  • Arrival of slugs and liquid surges
  • Too fast or too slow ramp-up
  • Separator high liquid level occurs in 3.5 hours
  • Sand production
  • Cool-down time for wells and pipelines
  • Warm-up time
  • Pipeline blockage
  • Instrument failure
  • Packing/survival time
  • Gas quality
  • Corrosion rate