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: Workflow
Tap a topic — Why · How · What · Drivers. Hover any abbreviation for its meaning.
Workflow Engine
Auto-derived from MC, Commissioning & Turnover modulesStep 1
Construction Completion
92%
Step 2
Mechanical Completion
83%
Step 3
Pre-commissioning
57%
Step 4
Commissioning
31%
Step 5
Start-up
0%
Step 6
Reliability Run
0%
Step 7
Handover
10%
Construction Completion
Mechanical erection, welding, painting, insulation complete.
92%
Mechanical Completion
Hydrotest, flushing, reinstatement, FME closed, A-punches = 0.
83%
Pre-commissioning
Cold work — alignment, lubrication, energisation prep.
57%
Commissioning
Loop checks, C&E, functional test, performance.
31%
Start-up
First feed introduction, transition to operating conditions.
0%
Reliability Run
Continuous operation at design — typically 72 hr to 7 days.
0%
Handover
Operations Acceptance — Care, Custody & Control transfer.
10%
Why this matters
Percentages here are derived live from the per-subsystem MC, Commissioning, and Turnover checklists. To advance a step, tick the underlying gates in those modules.
Common field problems
Construction declared complete with open weld NDE; commissioning loops run on unstable ICSS; reliability run aborted early due to instrument drift.
Best practice
Hard-gate every transition. This workflow is the single source of truth across construction, commissioning, vendors, and operations.