Integrated Approach to Quantify L80 Tubing Corrosion for High-rate Sour Gas Wells

Sun, Wei; Ling, S.; Reddy, Ramani V.; Pacheco, José Augusto; Asmann, Marcus; Nor, Nazri; Kersey, Michael Scott; Morshidi, L.; Nisbet, Robert Smith

doi:10.2523/14933-ms

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“…As more and more aggressive oil and gas fields with considerable amount of H 2 S and CO 2 gas have been discovered, the corrosion problem of pipeline steel has attracted more attention. [1][2][3][4] It is generally acknowledged that severe general and localised corrosion of steel are prone to appear in CO 2 environments. [5][6][7] In addition, the presence of H 2 S would cause hydrogen induced cracking and sulphide stress corrosion cracking of pipelines.…”

Section: Introductionmentioning

confidence: 99%

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H₂S/CO₂environments

Huang

Chen

et al. 2015

Corrosion Engineering, Science and Technology

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The present research investigated the effect of H 2 S/CO 2 partial pressure, sulphur deposition and corrosion inhibitor on the corrosion behaviour of L360QCS pipeline steel in H 2 S/CO 2 environments by immersion tests, scanning electron microscope analysis and electrochemical measurements. The results show that the corrosion rate (CR) of L360QCS steel decreased first and then increased with increasing p H2S and p CO2 .The CR is closely associated with the protectiveness of corrosion film. Sulphur deposition can cause an acceleration of the corrosion of steel in H 2 S/CO 2 environments. Furthermore, the CR increased obviously with increasing p H2S and p CO2 in sulphur deposition environments. After addition of continuous corrosion inhibitor, the CR decreased significantly in H 2 S/CO 2 environments. Prefilming corrosion inhibitor could enhance the inhibition effect in the presence of continuous corrosion inhibitor.

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Section: Introductionmentioning

confidence: 99%

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H₂S/CO₂environments

Huang

Chen

et al. 2015

Corrosion Engineering, Science and Technology

View full text Add to dashboard Cite

show abstract

Integrated Approach to Quantify L80 Tubing Corrosion for High-rate Sour Gas Wells

Cited by 1 publication

References 0 publications

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H₂S/CO₂environments

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H₂S/CO₂environments

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Integrated Approach to Quantify L80 Tubing Corrosion for High-rate Sour Gas Wells

Cited by 1 publication

References 0 publications

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H2S/CO2environments

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H2S/CO2environments

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Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H₂S/CO₂environments

Effect of environmental factors on corrosion behaviour of L360QCS pipeline steel in H₂S/CO₂environments