Effects of H2S and CO2 on cement/casing interface corrosion integrity for cold climate oil and gas well applications

Justin Beck, Ruishu Feng, Derek M. Hall, Aysel Buyuksagis, Margaret Ziomek-Moroz, Serguei N. Lvov

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


Low-temperature corrosion relevant to oil and gas wells was investigated. Casing cement was exposed to brine in contact with CO2 at 4 °C and 10 MPa. Pore water was extracted from wet cement using a die press, and a cement simulated pore solution (CSPS) was developed to be used for corrosion studies. High levels of chloride similar to the original brine solution were found. The sodium content was well below that of the original brine, with the change in charge mostly balanced by an increase in dissolved calcium. The calcium content was above predictions for brine-CO2- Ca(OH)2 equilibrium, suggesting that sodium was displaced in favor of calcium. Corrosion measurements were performed on casing steel using linear polarization resistance, electrochemical impedance spectroscopy, and mass loss samples with H2S:CO2 ratios from 0 to 0.001. The corrosion rate was found to decrease slightly with increasing sulfide content from 0.02 to 0.01 mm y-1.

Original languageEnglish (US)
Title of host publicationCorrosion General Session
EditorsR. G. Buchheit, S. Virtanen
PublisherElectrochemical Society Inc.
Number of pages16
ISBN (Electronic)9781607687443
ISBN (Print)9781623323868
StatePublished - 2016
EventCorrosion General Session - 229th ECS Meeting - San Diego, United States
Duration: May 29 2016Jun 2 2016

Publication series

NameECS Transactions
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862


OtherCorrosion General Session - 229th ECS Meeting
Country/TerritoryUnited States
CitySan Diego

All Science Journal Classification (ASJC) codes

  • General Engineering


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