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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%
Handover12%
Learn: Commissioning
Tap a topic — Why · How · What · Drivers. Hover any abbreviation for its meaning.

Commissioning Sequence

Commissioning Stage Map
  1. 1
    Energisation complete
    MV/LV bus, breakers, MCC tested
  2. 2
    Loop checks complete
    Field-to-DCS continuity & calibration
  3. 3
    Cause & Effect validated
    F&G/SIS interlock validation
  4. 4
    Functional test passed
    End-to-end logic & sequence
  5. 5
    Performance test passed
    Capacity & guarantee
  6. 6
    Reliability run complete
    72-hr / 7-day continuous run
Subsystem1. Energisation2. Loop3. Cause4. Functional5. Performance6. ReliabilityProgressStatus
IA Compressor Package
20-IA · 20-IA-001 · Mechanical
45%amber
IA Dryers
20-IA · 20-IA-002 · Mechanical
MC incomplete — commissioning gated
0%red
IA Distribution Network
20-IA · 20-IA-003 · Piping
30%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

Start-up Tracking

First feed, stable operations, safeguards, and shift coverage

Subsystem1. First feed introduced2. Stable operating conditions3. Safeguards in service4. Operations shift coverageProgress
IA Compressor Package
20-IA / 20-IA-001
0%
IA Dryers
20-IA / 20-IA-002
0%
IA Distribution Network
20-IA / 20-IA-003
0%
P-1001 A/B Train
10-PUM / 10-PUM-001
0%
ICSS Cabinet Room
70-ICSS / 70-ICSS-001
0%
F&G Loops Unit 10
70-ICSS / 70-ICSS-FG-10
0%

Reliability Run Tracking

Contractual run readiness and owner acceptance

Subsystem1. Reliability run started2. At design rate3. No trips / forced outages4. No critical open punches5. Owner accepted runProgress
IA Compressor Package
20-IA / 20-IA-001
0%
IA Dryers
20-IA / 20-IA-002
0%
IA Distribution Network
20-IA / 20-IA-003
0%
P-1001 A/B Train
10-PUM / 10-PUM-001
0%
ICSS Cabinet Room
70-ICSS / 70-ICSS-001
0%
F&G Loops Unit 10
70-ICSS / 70-ICSS-FG-10
0%
Commissioning progress weightingIndustry default
Basis: Functional + performance + reliability runs are the value-proving phase. Energisation alone proves nothing about operability.
Sources: IPA Pacesetter benchmarks · IOGP Report 597 (C&E independence)
Energisation complete
10%
default 10%
Loop checks complete
20%
default 20%
Cause & Effect validated
15%
default 15%
Functional test passed
25%
default 25%
Performance test passed
15%
default 15%
Reliability run complete
15%
default 15%
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.
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