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: Mechanical Completion
Tap a topic — Why · How · What · Drivers. Hover any abbreviation for its meaning.
Mechanical Completion
| Subsystem | Discipline | Walkdown signed | Hydrotest pack closed | Flushing / cleaning certified | Reinstatement & FME closed | Preservation register active | No open A-punches | Progress | MC Status |
|---|---|---|---|---|---|---|---|---|---|
IA Compressor Package 20-IA · 20-IA-001 | Mechanical | 100% | green | ||||||
IA Dryers 20-IA · 20-IA-002 | Mechanical | 75% | amber | ||||||
IA Distribution Network 20-IA · 20-IA-003 | Piping | 100% | green | ||||||
P-1001 A/B Train 10-PUM · 10-PUM-001 | Mechanical | 65% 1 A-punch | amber | ||||||
ICSS Cabinet Room 70-ICSS · 70-ICSS-001 | Instrumentation | 75% 1 A-punch | green | ||||||
F&G Loops Unit 10 70-ICSS · 70-ICSS-FG-10 | Fire & Gas | 75% 1 A-punch | green |
Mechanical Completion progress weightingIndustry default
Basis: Hydrotest and A-punch closure are absolute gates — failure invalidates MC. Walkdown and preservation matter but rarely block.
Sources: CII IR-272 · Shell DEP 80.00.10.11 · Saudi Aramco SAEP-1145
Walkdown signed
10%
default 10%
Hydrotest pack closed
25%
default 25%
Flushing / cleaning certified
15%
default 15%
Reinstatement & FME closed
15%
default 15%
Preservation register active
10%
default 10%
No open A-punches
25%
default 25%
All changes saved
Why this matters
MC is the formal handover from Construction to Commissioning. Tick the six gates per subsystem; A-punch closure is automatic from the punch list. Changes are held in draft — click Save changes to commit.
Common field problems
MC declared with open hydrotest packs; reinstatement done after MC; preservation logs missing; vendor scopes not closed out.
Best practice
Treat each row as a hard gate. Generate the MC Dossier when all rows are green and use it to drive the MC walkdown with operations.