3 year EPC Project – Overall Engineering sequence
6
12
Project Month
IFR
P&IDs
Piping
classes
Line
Diagr.
Fluids
list
Eqt
sizing
& list
1st
Piping
MTO (IFI)
General UG
networks
1st
Piping
PO
Eqt PDS
In-line
instr. POs
30%
model
review
Eqt bids
Eqt TBTs
P&IDs
PR
calcs
PR
found
IFC
3D MODEL
Equipment GADs
Equipment POs
1st IFC
Package
vendor
dwgs
Last
IFC
PIDs
70% piping
materials
delivered
Start
Piping
fab.
MTO
50% upisos dates
Pipe supports location &
loads
IFD
plot
plan
Eqt Guide
drawings
In-line instr.
Vendor dwgs
Eqt Vendor
dwgs
Stress analysis
HX sizing
Eqt spec
MDS,
MR
Piping materials supply
Piping studies
IT system
set-up
Haz.
area
class
MSD
IFD
PIDs
Fire
Protection
Main cable
routing
Plot Plan
Review
Plot
Plan
IFR
PFDs
HMB
P&ID
review
H
A
Z
O nd
2
P
Piping
MTO
(IFP)
18
Eqt setting plan
& loads
PR str
dwgs
IFC
Piping MTO
up-dates
60%
model
review
XXX
XXXX
IFC
plot
Plan
UG piping
Process
& cable
str IFC
trench IFC
Eqt
found
IFC
Final Equipment,
packages and in-line
instrument vendor
dwgs
Piping
Isometrics
90%
model
review
Piping
GADs
© The Oil & Gas Engineering Guide, Editions Technip, 3rd edition, 2018