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FOXTROT COMPRESSOR STUDY
FOXTROT Compressor SystemFOXTROT Compressor System
Review StudyReview StudyMay 7th,2015
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BackgroundObjectives
Production ProfleCase Study
Block DiagramLiquid Carry Over
Adequacy Check esselAdequacy Check !in"#an Cooler
$rim Cooler %eactivation or %e#rigerant%e&lacement
!uel 'as System %evie(Com&ressor System %evie(
Summary ) %ecommendation
TABLE OF CONTENT
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BACKGROUND
3
1. Stripping Down and Bearing Capsule Replacement due to ingress liquid carry
overto compressor in ECHO and L!".
#. $uture %owrate condition and changes S.G.
&o c'ec( and review e)isting $O*&RO&Compressor system any issue regarding+
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OBJECTIVE
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a.C'ec( ,Liquid Carryover- to compressor system..,"dequacy C'ec( o/ 0essel and $in/an Cooler-.c.Review Reactivation o/ &rim Cooler2Re/rigerantregarding ,Corrosion ssue-.d.Review t'e ,Compressor 3er/ormance-.e.Review $uel 4as System.
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PRODUCTION PROFILE
Max productionof total fluid
Future Case Train B
Reactivation
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1) Current Casea.Current Operating based on site surey data !2"#$an#2015)b.1 %rain Co&pressor 'unning(.%ri& Cooer is ina(tie
2) Future Casea.Ma*i&u& +as o-rate reer to rodu(tion roieb.2 %rains Co&pressor running(.%ri& Cooer is ina(tie or %ri& Cooer 'ea(tiation and or
'epa(ed 'erigerant
CASE STUDY
Current Case(*)
Future Case(**)
Design Case
Train A A B A B
Flowrate,MMSCFD
19.! ".!! "1.9# "".$$ #5.6#
S%, &'( .9! 1.!$ 1.!$ 1.1$ .9#!
(*) 1 Train Compressor is running(**) 2 Trains Compressor are running
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BLOC7 D"4R"!
FFB,F)
FA,F% *F+
$O*&RO
&
Fuel %as
%as ift
9.89 SCFDCURRENT
FUTURE!."8 SCFD #$%CURRENT
!&.'8 SCFD #$%CURRENT
(&.8) SCFDFUTURE
).8" SCFD #$$%FUTURE(!.&* SCFD
CURRENT 9.!& SCFD
FUTURE 8.'+ SCFD
8ote+9: One train compressor is running99: &wo trains compressor are running
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LIQUID CARRY OVER
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%here is iuid (o&ing
ro& iuid outet 2nd
stage s(rubber to 1st
s(rubber.
%here are iuid
(o&ing ro& #
200 and M#300,
400 to 2nd
stages(rubber
L,-u, Carr/ O0er ,ssue t1 2134ress1r 51r 6Current7 an 6Future7 Case
LIUID CARRY OVER
Mitigation iuid (ontent
(an be separated by &ist
e*tra(tor at 1stand 2ndstage
s(rubber
N1L,-u, Carr/ O0er
t1 2134ress1r 51r
Current Future Case
Current (ase
# 1 train running# nti#surge
ae is open
5.
uture (ase
# 2 trains running#'e(y(e and
nti#surge
ae (osed.
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VESSEL ADEQUACY CHEC
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VESSEL ADEQUACY CHEC
%he possibiity o iuid (arry
oer to (o&pressor (an be
redu(ed by the presen(e o
Mist e*tra(tor in s(rubber.8n order to &eet &o&entu&
(riteria, it is suggested to &a9e
sure the e*isting inet dei(e
type.
Parameter Unit FP-V7 FP-V1B MBF
100/110
MBF
200/210
MBF
300/310
MBF
400/410
Gas !"#rateMMscfd
"#1
"1.$ "1.11 "1.9# "1.$ 1-.!$$i%ui& !"#rate BFD "!/.! 1"!- 1#".1 1/!1 /"! 1-"1
'erating P/ psi0F -"1" -2$! $9-! #1#2 !112 !112
n!et
M"mentum
3xistin0 l4ft 's" "1.! ##" #"1.- 19"- "/1 "$2"
Maxi5u
5l4ft's" # # 1" 1" 1" 1"
n!et +",,!e
3xistin0 in " 1$ 1$ - $ $
Re6uired in 9.2 -.9 1".9 1".1 !.# !.!
Gas 'ut!et
+",,!e
3xistin0 in " 1$ 1$ - $ $
Re6uired in 1.2 9.# 1." !./ 2.9 2.9
$i%ui&
'ut!et
+",,!e
3xistin0 in $ - "#
# #
Re6uired in " " .2 1.$ " "
D/rea
Re6uired inft" 2.-1 1".2- #2./- /.1- /.92 /.92
Availa4le inft" #!.2" 19."# $ #" 9.$" 9.$"
.emars Ade6uate Ade6uate Ade6uate)o77le inlet
is undersi7ed
)o77le inlet
is
undersi7ed
)o77le inlet
is
undersi7ed
:ote
1. +as o-rate based on Ma*.
o-rate !Future Case).
2. 8net dei(e and interna
dei(e are assu&ption !ha
open pipe).
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12
FI!"FA! COOLER ADEQUACYCHEC
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Adequacy Check HAL-100
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Noe! 1" Daa#hee e$%#%&' (%&-(a& coo)e* %# a##u+ed ,a#ed o& NE coo)e* e$ce. (o* u,e d%a+ee* / h%ck&e##"
Tu,e d%a+ee* / h%ck&e## %# adu#ed ,a#ed o& P*e##u*e d*o."
1" Sca)e a&d )eaka'e
a u,e #%de %#%&d%caed (*o+
h%'h .*e##u*e d*o.
2" The ou)e
e+.e*au*e %# #%))
h%'h"
Co%de* o %a))
&e3 coo)e*"
Parameter Unit Current
(eisting1)Current (ne#
""!er)Future (+e#
C""!er)Design (+e#
C""!er)
Gas .ateMMscfd 19.! 19.! "1.$- "-.!
&1( l48r $2.1"/ $2.1"/ !#."/ 9-.$9
emerature in F //$ //$ "$9 /!2
emerature "ut F 12- 12- 112 112
Pressure Dr" psi 212 /.#! /.$9 $.$2!!"#a!e Press Dr" psi 1 1 1 1
ir !"# &1( l48r 2.! 2.! 2.! 2.!
emerature in F 9- 9- 9- 9-
emerature "ut
F 1#1 1#1 1#1.2 1-".#Pressure Dr" in": .$# .$" .$" .$2
Dut MMBtu8r 5164 5172 5233 10164
U atua! Btuft"'8r'F /.$! ".-#- ".9-9 /.//
U re%uire& Btuft"'8r'F .-"$ .-/1 "./!# ".9--
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Adequacy Check HAL-200
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Noe! 1" Daa#hee e$%#%&' (%&-(a& coo)e* %# a##u+ed ,a#ed o& NE coo)e* e$ce. (o* u,e d%a+ee* / h%ck&e##"
Tu,e d%a+ee* / h%ck&e## %# adu#ed ,a#ed o& P*e##u*e d*o."
Sca)e a&d )eaka'e au,e #%de %# %&d%caed
(*o+ h%'h .*e##u*e
d*o."
Co%de* o %a)) &e3
coo)e*
Parameter Unit Current
(eisting1
)
Current (ne#
""!er)
Future (+e#
C""!er)
Design (+e#
C""!er)
Gas .ateMMscfd 19.! 19.! "1.$- "-.!
&1( l48r $2.1"/ $2.1"/ !#."/ 9-.$9
emerature in F "/2 "/#.9 "/." "#
emerature "ut F 1 1 112 112
Pressure Dr" psi 301 #.-9 2./2 1.9
ir !"# &1( l48r 2""./ 2""./ 2""./ 2""./
emerature in F 9- 9- 9- 9-
emerature "ut F 1"9 1/ 1"2.! 1#-
Pressure Dr" in": .$9 1.12 1.12 1.1!9
Dut MMBtu8r 323 34 2738 6272
U atua! Btuft"'8r'F #./#2 /.9"" #.1#" #.#!"
U re%uire& Btuft"'8r'F /.21 ".99" "."- #.9#
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TRI# COOLER REACTIVATIO! ORREFRI$ERA!T RE%LACE#E!T
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TRI COOLER REACTIVATION
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FAF4
F5
a(9ground
1. %ri& Cooer had
been de&oished !in#
a(tie (ondition) or
Current (ondition.
2. igh ris9 (orrosion
due to CO2partia
pressure at 164 psia
!(urrent (ondition).
Tri5 Cooler is in'active condition
17
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T*%+ coo)e* )oca%o&
17
ast Current !%ri& Cooer had been
de&oished)
1/
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TRI COOLER #Sea :ater % REACTIVATION STUDY
1/
FAF4
F5
Tri5 Cooler re'activation usin0
sea water
1"
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1"
FF6
FN
FAF4
F5
TRI COOLER #Re5r,;erant% REACTIVATION STUDY
Tri5 Cooler is replace
usin0 Refri0erant
Tri5 Cooler is activeusin0 Seawater
%ri& Cooer re#a(tiation using
;'erigerant< suppy
'erigerant type is
using '14 or C4 or
%etrauoroðane.
%ri& Cooer
euip&ent -i be
repa(ed -ith the
ne- one to (o&e up
-ith '14 uid
(hara(teristi(.
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REFRIGERATION SYSTE PACKAGE
=u(tion
=(rubber
Co&pressor
Co&pressorOi iter
Co&pressorOi u&p
Co&pressorOi Cooer
Co&pressor
Oi =eparator
O>%'O% ator& has i&ited spa(e and aready (ro-ded, :ot
aiabe to 8nsta additiona 'erigerant syste& pa(9age.
Gas Fr"mMBF
300/310
" F!are
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TRI COOLER REACTIVATION
Parameter Unit
Current Case Future Case
nati9e rimC""!er
.e-ati9ati"nrim C""!er
.erigerant
%as Flowrate MMSCFD 19.! #."$ #."$%as ressure psi0 ! !"1 !"1%as Te5p. inlet outlet
F 1 1 112 92 112 -
Cooler Suppl;
Flowrate 48 ' //" 9$!#Cooler Suppl;Te5p.
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P*o# a&d Co
22
3arameterReactivation &rim Cooler Re/rigerant Replacement
"dvantages Disadvantages "dvantages Disadvantages
$em&erature
$em&erature canbe reduce to *+ !
,as closed asambient
tem&erature-
"$em&erature canbe reduce to ./ !
"
0ater Content
%educe (atercontent #rom
.1234 to 1526lb788sc#
"
%educe (atercontent #rom
.1234 to /211lb788sc#
"
CO1 PartialPressure
"
CO1 &artial&ressure is not
signifcantlyreduced ,#rom3952. to 3+6
&sia-2 Corrosion
rate is still high2
"
CO1 &artial&ressure is not
signifcantlyreduced ,#rom3952. to 34*
&sia-2 Corrosion
rate is still high2
Constructability "%e"install $rim
Cooler2"
:eed additionals&ace since thearea is limited
;tility "
%e"install Sea0ater Pum&,e
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FUEL 4AS SYSTEM RE78E
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FUEL GAS SYSTE REVIE:
=(he&ati( ue +as =yste& !Current Case)
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FUEL GAS SYSTE REVIE:
=(he&ati( o :e- ue +as =yste& !uture Case)
Consider to install new3lectric Super8eater atdownstrea5 of Fuel 0asFilter to raise t8ete5perature a4ove dewpoint re6uire5ent.
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FUEL GAS SYSTE REVIE:
Parameter Unit Current
Case
Future Case
(.eati9ati"n
rim C""!er)
Future Case
(.erigerant)
Future Case
(Using ?!etri
@uer=eater)
Mass F!"# .ate MMSCFD 1.#$# ".9"- ".9"- ".9"-
n!et Fue! Gas @stem
emerature in oF 1 92- -
Pressure in psi0 ! !"1 !1$ !1$
+e# ?!etri @uer >eater
.e%uire& Dut >= ' '' /$.!
Fue! Gas C"ntr"! Va!9e
emerature
D"#nstream FGCVoF $-."" /2.2- "/.#" $./9
=C De# P"int
emeratureoF "$.1 11.# $.- !.1
Pressure
D"#nstream FGCVpsi0 1/$ 1/$ 1/$ 1/$
FU?$ gas Aua!it
8ot
adequat
e
8ot adequate 8ot adequate "dequate
+as te&perature is
not adeuate as ue
gas reuire&ent.Consider to insta
ne- @e(tri(
=uperheater at
do-nstrea& o ue
gas iter to raise
the te&perature
reuire&ent aboede- point
te&perature.
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?!etri @uer>eater ti9ating
A0anta;es Aisadantages
I34r10e Fue Gas -ua,t/ #at east ;aste34erature '* *F a?10e De 41,ntte34erature%.
i&ited spa(e to insta ne- @e(tri(=uperheater.
:eed additiona (ost or pur(hasing o ne-@e(tri( =uperheater.
8n(rease operationa (ost !po-er(onsu&ption).
AB:%+@= :A A8=:AB:%+@=
2/
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2/
COMPRESSOR SYSTEM RE78E
2"
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2"
C)A!C)B!
1st=tage Co&pressor !C2#
1?C2#1) peror&an(e is sti
adeuate !po-er reuire&entess than po-er design) to
hande (urrent and uture (ase. 'e#staging is not needed.
PERFORANCE RESULTParameter Unit Current Future Design
Caait MMscfd 19.$ ".!! "".$$
tua!
aait
ACFM "/ "/$/ //!/
@eii
gra9it' .9!" 1.!$ 1.1$
@ee& rp5 1/2$9 1"$$ 1/$#
=ea& ft 2#9/ ##$## 221
P"#er >=8p 1-2-"#9" 1$-/""2- "1#-"--1
?iien ? $$.!! !1.99 !".1$
@uti"n P/ psi0 F $9-2 $!/-.$ 2#$.!
Dis>arge P/ psi0 F #""//$ #"""$! /92/"-
.emars Ade6uate Ade6uate
$low ;"C$! :==Head ;/t: