Download - Pre-Asses CO2 Corrosion Rate
7/18/2019 Pre-Asses CO2 Corrosion Rate
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1 Partial Pressure Ratio to consider CO₂ Corrosion
Partial Pressure H₂S
Pressure MPa 200
H₂S mole % 0.0068
H₂S Partial Pressure MPa 0.0136
Partial Pressure CO₂
Pressure MPa 40
CO₂ mole % 20
CO₂ Partial Pressure MPa 8
Partial Pressure Ratio 588.235294118
Susceptible to CO₂ Corrosion Susceptible
2 Corrosion Rate
Thickness Data
Year 1988 1996 2003
Reading 0.488 0.456 0.422
Sort!"er# Corrosion Rate$S" % 0.0049 ##&'ear
(on)!"er# Corrosion Rate$ (" % 0.0044 ##&'ear
*aseline Corrosion Rate$ *Cr % 0.0040 ##&'ear
Corrosion Rate +Hi)est, % 0.0049 ##&'ear
3 Remaining Life Calculation
% 0.14
Re#ainin) (i-e$ R( % 58.0588235294
4 Severity Level
Severity Level
1 0.01
2 0.01 ! 0.1
3 0.1 ! 1.0
4 1.0 ! 10.0
5 / 10.0
i)ure 1.1 Seerit' ne base on nstitute o- ner)' +,
Seerit' 1.6864
n#iti)ate Preiction Corrosion Rate -or CO₂ Corrosion -or Preli#inar' 7esi)
t initial
t preious
t actual
t reuire
UnmitigatedCorrosion Rate
mm!yr"
7/18/2019 Pre-Asses CO2 Corrosion Rate
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eS % H₂S
arl' assess#ent
eCo: % CO₂