Marathon Petroleum · Garyville, LA
Marathon Refinery — Unit 10 Revamp
Revamp of crude unit 10 with new charge pumps and upgraded ICSS.
Systems
3
Subsystems
6
Open A
2
Open B
1
MC83%
RFSU53%
Comm.37%
Handover8%
Learn: Commissioning
Tap a topic — Why · How · What · Drivers. Hover any abbreviation for its meaning.
Commissioning Sequence
Commissioning Stage Map
- 1Energisation completeMV/LV bus, breakers, MCC tested
- 2Loop checks completeField-to-DCS continuity & calibration
- 3Cause & Effect validatedF&G/SIS interlock validation
- 4Functional test passedEnd-to-end logic & sequence
- 5Performance test passedCapacity & guarantee
- 6Reliability run complete72-hr / 7-day continuous run
| Subsystem | 1. Energisation | 2. Loop | 3. Cause | 4. Functional | 5. Performance | 6. Reliability | Progress | Status |
|---|---|---|---|---|---|---|---|---|
IA Compressor Package 20-IA · 20-IA-001 · Mechanical | 50% | amber | ||||||
IA Dryers 20-IA · 20-IA-002 · Mechanical MC incomplete — commissioning gated | 0% | red | ||||||
IA Distribution Network 20-IA · 20-IA-003 · Piping | 33% | amber | ||||||
P-1001 A/B Train 10-PUM · 10-PUM-001 · Mechanical | 0% | grey | ||||||
ICSS Cabinet Room 70-ICSS · 70-ICSS-001 · Instrumentation | 100% | green | ||||||
F&G Loops Unit 10 70-ICSS · 70-ICSS-FG-10 · Fire & Gas | 0% | red |
All changes saved
Why this matters
Each tick advances commissioning RAG automatically. Sequence (utilities first, then process) determines whether commissioning takes weeks or months.
Common field problems
Schedule pressure pushes process loop checks before ICSS is stable; vendors arrive after their package is needed; reliability runs start with open A-punches.
Best practice
Lock energisation order with operations and SIMOPS team; align vendor mobilisation to readiness; never enter reliability run with open A-punches.