Post on 07-Jul-2018
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EP 20270A01 GAS DEHDRATION
HDRATES AND HDRATE PREVENTIONPART 5 : GAS DEHDRATION
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EP 20270A01 GAS DEHDRATION 2
HDRATE PREVENTION DIFFERENT POSSIBILITIES
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HDRATE FORMATION CONDITIONS GENERALITIES
EP 20267A10 HDRATES & HDRATE PREENTION
WATER
another compound
A GAS
PRESSURECOLD
Key points hydrates formation conditions
To get some hydrates you need 4 things :
Hydrogen bonds
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COURSE OUTLINE INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O
− A: S D TEG
− C TEG
− I TEG − T
PHSICAL ADSORPTION (SOLID DESICCANT)
− O− P
OTHER TECHNOLOGIES
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EP 20270A01 GAS DEHDRATION 5
INTRODUCTION OVERVIE OF DEHDRATION
H TO DEHDRATE A NATURAL GAS?
P HDRATES FREE ATER
M
P
HAT ARE THE MAIN DEHDRATION TECHNIQUES?
P ( LIQUID ) P ( SOLID )
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INTRODUCTION HERE IN THE GAS PROCESSING CHAIN ?
E: P (E)
P: M (F) P
B: M (F) R ( )
N : R P
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INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O
− A: S D TEG
− C TEG
− I TEG − T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
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1 PHSICAL ABSORPTION (TEG UNIT)
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OVERVIE OF PHSICAL ABSORPTION
G (TEG)
TEG
G TEG 10C100C 10
120+ .
D P 30C 100C
S TEG (.. S G,
C, DRIO)
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OVERVIE OF PHSICAL ABSORPTION PRINCIPLE OF A TEG UNIT
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OVERVIE OF PHSICAL ABSORPTION PRINCIPLE OF A TEG UNIT
TEG UNIT REGENERATOR ( STILL COLUMN)
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OVERVIE OF PHSICAL ABSORPTION PRINCIPLE OF A TEG UNIT
S R O, 1998 O G U "
2 TEG (1500 MMSCFD ; TEG 80 3/ )V TEG
OVERVIE OF PHSICAL ABSORPTION FE FIGURES
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EP 20270A01 GAS DEHDRATION 13
G T
S
− D
− G
T G (TEG) :
H
E ( 204C) C 99.9+ %
L
K : L
C : )
G : 15 40 TEG/ H2O
G : 99.0 99.95 %
OVERVIE OF PHSICAL ABSORPTION FE FIGURES
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EP 20270A01 GAS DEHDRATION 14
INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O
− A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
SUMMAR DESIGN OF A TEG UNIT FEED GAS
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SUMMAR DESIGN OF A TEG UNIT FEED GAS
≈ 830 /S3.
H2O CONTENT OF MOISTURE SATURATED GASES
(C BUKACEK)
1 35C,
70 .,
?
SUMMAR DESIGN OF A TEG UNIT TEG CIRCULATION LOOP
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SUMMAR DESIGN OF A TEG UNIT TEG CIRCULATION LOOP
2 100
C (≈ 118 000 3 /),
(
=
100% ).
≈ 100 H2O /
3 A 25
/ ,
.
≈ 2500 TEG /
:
!!!!!
!!!!!
.
..
....
..
SUMMAR DESIGN OF A TEG UNIT TEG CIRCULATION LOOP
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SUMMAR DESIGN OF A TEG UNIT TEG CIRCULATION LOOP
BUBBLE TEMPERATURE
OF COMMERCIAL TEG SOLUTIONS
4
400
(≈ 204C),
?
≈ 98.7 %
SUMMAR DESIGN OF A TEG UNIT RESIDUAL MOISTURE CONTENT OF DR
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SUMMAR DESIGN OF A TEG UNIT RESIDUAL MOISTURE CONTENT OF DR
GAS
ATER DE POINT OF A NATURAL GAS
AT EQUILIBRIUM ITH A TEG SOLUTION
5
35C,
?
≈ 10 C
SUMMAR DESIGN OF A TEG UNIT CONTACTOR
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SUMMAR DESIGN OF A TEG UNIT CONTACTOR
6 A 25
/ (= 3.00
/ ),
.
≈ 6 T
ESTIMATION OF THE NUMBER OF
SEPARATION TRAS OF THE TEG CONTACTOR
!
SUMMAR DESIGN OF A TEG UNIT CONTACTOR
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SUMMAR DESIGN OF A TEG UNIT CONTACTOR
7 ,
.
,
.
100 C.
≈ 72
ESTIMATION OF THE
DIAMETER OF THE TEG CONTACTOR
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SUMMAR DESIGN OF A TEG UNIT REGENERATOR ( STILL)
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SUMMAR DESIGN OF A TEG UNIT REGENERATOR ( STILL)
9
().
≈ 300 350 103 /
ESTIMATION OF REBOILING
DUT OF THE REGENERATOR
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INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O
− A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
CONVENTIONAL TEG PROCESS EAMPLE OF PFD
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EP 20270A01 GAS DEHDRATION 24
CONVENTIONAL TEG PROCESS FEED GAS SCRUBBING SSTEM
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FEED GAS SCRUBBER
T
T (H
+ F)
FEED GAS FILTER & MIST ETRACTOR
SOLID : > 99% > 1 μ
LIQUID : > 99% > 1 μ
CONVENTIONAL TEG PROCESS CONTACTOR
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BUBBLE CAPS
CONVENTIONAL TEG PROCESS GLCOL/GLCOL HEAT ECHANGER
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CONVENTIONAL TEG PROCESS REGENERATOR STILL COLUMN
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CONVENTIONAL TEG PROCESS REGENERATOR CONDENSATION
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EP 20270A01 GAS DEHDRATION 29
SSTEM
CONVENTIONAL TEG PROCESS REGENERATOR REBOILING
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SSTEM
CONVENTIONAL TEG PROCESS FINAL REFRIGERANT
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CONVENTIONAL TEG PROCESS TEG SOLUTION FILTRATION
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EP 20270A01 GAS DEHDRATION 32
F KE POINT . I , .
( , , .)
TEG
T (), . T :
, . T ( , ),
. , ( , ),
( )
M
I , 99% 10 μ (25μ ).
T ( , ) . T 0.5 0.7
CONVENTIONAL TEG PROCESS TEG SOLUTION FILTRATION
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A
T ( ,
, TEG , .) ,
.
T
G ,
TEG (10 20%). T ( ).
: ,
.
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EP 20270A01 GAS DEHDRATION 34
INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O
− A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
IMPROVEMENT OF CONVENTIONAL PROCESS THREE (3) TECHNIQUES
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H 100% TEG ?
T (3) :
S (COLDFINGER)
G
S (DRIO)
IMPROVEMENT OF CONVENTIONAL PROCESS SECONDAR ATER ETRACTION
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IMPROVEMENT OF CONVENTIONAL PROCESS SECONDAR ATER ETRACTION
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STILL COLUMN
TO FLARE
TO FLARE
CLOSED
DRAIN
FILTER
PUMP
GLYCOL/GLYCOL
HEAT EXCHANGER
TRIMDRYER
DRY GAS
TRIM
COOLER
GLYCOL
CONTACTOR
WET GAS
HEAT
MEDIUM
REBOILER
SURGE
DRUM
FLASH DRUM
IMPROVEMENT OF CONVENTIONAL PROCESS GAS STRIPPING
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IMPROVEMENT OF CONVENTIONAL PROCESS GAS STRIPPING PERFORMANCES
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EP 20270A01 GAS DEHDRATION 39
PROVEN
U 6 SCF/GALL
99.95% .
P
M BTE
E : I
R
EFFECT OF STRIPPING GAS
ON THE PURIT OF LEAN TEG
IMPROVEMENT OF CONVENTIONAL PROCESS GAS STRIPPING PERFORMANCES
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NNH 2007
TEG 325 MMSCFD
P
7.2 T/ TEG
R ( )
IMPROVEMENT OF CONVENTIONAL PROCESS DRIO PROCESS
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EP 20270A01 GAS DEHDRATION 41
G : 99.99+%
DRIO : S
P : B
S :
− O
− T
− S
− S
IMPROVEMENT OF CONVENTIONAL PROCESS DRIO PROCESS
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IMPROVEMENT OF CONVENTIONAL PROCESS DRIO PROCESS
PERFORMANCES
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DRIO BTE CO2
S
L
L
A
Delivery date Plant location Capacity MMSCFD Dew point achieved Lean TEGwt %
1991/1994 U.K. 400 (x2) -62°C @ 37 bar 99.99
1993 Africa 440 -55°C @ 26 bar 99.98
1995 USA 52 -66°C @ 6 bar 99.99
1995 and 1996 Latin America 375 (x2) -54°C @ 34.5 bar 99.99
1997 USA 56 -70°C @ 62 bar 99.99
1997 North Sea 615 (x2) -44°C @ 62 bar 99.98
1997 Europe 140 -108°C @ 16 bar 99.99+
IMPROVEMENT OF CONVENTIONAL PROCESS DRIO PROCESS
PERFORMANCES
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D EHRA N, 2004 SAIPEM/EON MOBIL (197 MMSCFD)
IMPROVEMENT OF CONVENTIONAL PROCESS DRIO PROCESS
PERFORMANCES
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D E T (400 MMSCFD, 80 C)
TROUBLESHOOTING HSE CONSIDERATIONS
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EP 20270A08 HDRATES PREENTION DEHDRATION
SOLUBILIT OF AROMATICS (BT) IN TEG SOLUTION
IMPROVEMENT OF CONVENTIONAL PROCESS PERFORMANCE
COMPARISON
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EP 20270A08 HDRATES PREENTION DEHDRATION
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EP 20270A01 GAS DEHDRATION 48
INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O − A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
TROUBLESHOOTING DEGRADATION & CONTAMINATION OF TEG
SOLUTION
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TROUBLESHOOTING DEGRADATION & CONTAMINATION OF TEG
SOLUTION
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QUALIT REQUIREMENTS FOR THE LEAN TEG SOLUTION
TROUBLESHOOTING DEGRADATION & CONTAMINATION OF TEG
SOLUTION
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SLUDGE PROBLEMS K6P (O HOLLAND)
SLUDGE 48
HC Condensates
SLUDGE
MEG / MDEA solution
PHSICAL ABSORPTION
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ADVANTAGES
L
L
L
R
DISADVANTAGES
L
A
G
G
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INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O − A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
MOLECULAR SIEVES CHARACTERISTICS
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E
C
E
L
L
H
SOLID DESICCANTS PRINCIPLE
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EP 20270A08 HDRATES PREENTION DEHDRATION
NG T ,
( 200 315 C)
M :
()
A
C (.. A
MTM)
S G D S D
E
C
E
L
L
H
SOLID DESICCANTS PRINCIPLE
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EP 20270A08 HDRATES PREENTION DEHDRATION
P
SOLID DESICCANTS
M S ()
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EP 20270A08 HDRATES PREENTION DEHDRATION
SOLID DESICCANTS
S
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EP 20270A08 HDRATES PREENTION DEHDRATION
.
SOLID DESICCANTS
S
A HC (C5+)
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EP 20270A08 HDRATES PREENTION DEHDRATION
A HC (C5+)
C / NGL
F C5+
C5+ : 30 45 H
MOLECULAR SIEVES CHARACTERISTICS
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EP 20270A01 GAS DEHDRATION 60
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EP 20270A01 GAS DEHDRATION 61
INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O
− A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
G / M
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PHSICAL ADSORPTION PROCESS IMPLEMENTATION
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EP 20270A08 HDRATES PREENTION DEHDRATION
N (2 6), , ,
PHSICAL ADSORPTION PROCESS IMPLEMENTATION
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QG 1 D P C QATARGAS
PHSICAL ADSORPTION PROCESS IMPLEMENTATION
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, 2003 (1100 C, )
PHSICAL ADSORPTION EAMPLE OF BED ARRANGEMENT
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PHSICAL ADSORPTION ADSORPTION / DESORPTION CCLES
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PHSICAL ADSORPTION ADSORPTION / DESORPTION CCLES
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T
M
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ADVANTAGES
C
S
( )
C
DISADVANTAGES
H
H
L /
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INTRODUCTION
PHSICAL ABSORPTION (TEG UNIT)− O − A: S D TEG
− C TEG
− I TEG
− T
PHSICAL ADSORPTION (SOLID DESICCANT)− O
− P
OTHER TECHNOLOGIES
COURSE OUTLINE
OTHER TECHNOLOGIES
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I + R: IPEOL1
G : COMPACT TECHNOLOGIES
P / S: MEMBRANES
C : TISTER
IFPEOL / C & NGL
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C G
T B
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P R O D U C
T I O N M A N I F O L D S
1 SEPARATOR
TEGREGENERATION
LPSEPARATOR
3 SEPARATOR
ED
ED
G
LPSEPARATOR
2 SEPARATOR
2055 55156
156350
TEG
C O C T
T B
TR= 5
TR= 5
TR= 5
TR= 12
TR= 12
75C
45C
S
LPSEPARATOR
2 SEPARATOR
45C
I S
TEG REGENERATION
STATIC MIER
C
STATIC MIER
P
COCURRENT PRINCIPLE
PP C100
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PP C 100
G
A
V
L
US P N. 6,284,024 B1
PP
C100 M 13)
S
R G R
GLCOL REGERATION
PP
C100 M 2
P
,
H2O 2)
T ,
10 H20
F
MM
EAR 2004
AIR PRODUCTS MEMBRANES FOR DEHDRATION
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SPIRALOUND MEMBRANE SEPARATOR
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HOLLO FIBER MEMBRANE SEPARATOR
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GAS DEHDRATION TISTER
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I
C T, F A
C S, ,
A
GAS DEHDRATION TISTER OPERATING PRINCIPLE
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EP 20270A01 GAS DEHDRATION 79
1.3 (500 /)
30 , 40C
+
70 , 5C 100 , 20C
70 , 5C
C
(300,000)
C C
GAS DEHDRATION TISTER OPERATING PRINCIPLE
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EP 20270A01 GAS DEHDRATION 80
(100 , 20 )
(70 , 5 )
(>300,000 )
+ (70 , 5 )
( 1.3 / 500 /)
& (30 , 40 )
GAS DEHDRATION TISTER SSTEM DESIGN
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EP 20270A01 GAS DEHDRATION 81
A/
(
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EP 20270A01 GAS DEHDRATION 82
E 50, A
LT T T NL Q22000
H O C
O
V LT T NL Q12002
P T B ()
I G/L S E ( )
C &
R
HeatingCoils
Cond.
water
GasOut
GasInTwo Tubes
Condensate
Hydrate
Water
Deflector
0C
10C
25
C
SSB B11 1 T
P & S S B (SSB)
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( )
N A G
820% CO2, 3003500 H2S
2 300 MM
S MLNG B F
G >98%
1 O 2003
K F T TEG:
T
T L : US$ 80 MM
( 50/50 CAPE/OPE)
TISTER
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ADVANTAGES C
L
H
N
N
N
S
I FPSO
DISADVANTAGES H (30%)
L
KE POINTS TO REMEMBER
T TEG
P TEG . T TEG ,
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EP 20270A08 HDRATES PREENTION DEHDRATION
I TEG TEG . M :
U
D;
G TEG
P A ( )
U A
D NGL IFPE