The paper summarizes the theoretical and test programs to validate the aluminum cladding solution – developed to overcome sulfide stress corrosion problems in high strength steel armors in H2S/CO2 containing environment.
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Pitting failure boundary of duplex stainless steel under sour condition was investigated by electrochemical and immersion tests. Polarization measurements investigate the effect of temperature and H2S on the corrosion behavior.
Microbiologically influenced corrosion (MIC) presents risk to operators and infrastructure in many industries. This work shows the continued potential of novel sulphidogenesis-inhibitory compounds and recent gains towards decreasing the impact of H2S production and on MIC.
This paper provides an overview of the existing literature with regards to the understanding of cracking in molybdenum-containing 13Cr alloys and provides suggested paths of investigation.
A sour gas plant was experiencing high corrosion and fouling in aggressive conditions (170 to 195°F, 170 psi pH2S, 280 psi pCO2) including the presence of elemental sulfur (0.1 wt%). The current chemical program appeared to be ineffective.
In this paper the charging procedure will be demonstrated. Two case histories will be shown including autoclave telemetry data (pressure and temperature) and pressure measurements taken at temperature.
Sour corrosion phenomena observed in laboratory testing as it related to the microstructural features of UNSC72900. This was investigated through a parametric study of varying temperature and levels of H2S and chloride.
Results from novel transparent autoclave experiments. Carbon steel corrosion coupons were exposed to impurities levels within established specifications at simulated transport conditions (25 °C and 10 MPa of CO2).
To evaluate the applicability of the tubing steels, the corrosion behavior and stress corrosion cracking of tubing steels (P110S, P110-13Cr and duplex stainless steel 2205) were investigated under different H2S partial pressures and temperature.
This paper re-examines most public and in-house corrosion data on the effects of six typical impurities to advance the fundamental understanding of how pipeline steels corrode in sc-CO2 environments and identify knowledge gaps for further investigations.
Corrosion problems in casing vapor recovery system in a steam recovery processes to optimize corrosion management, considering maintenance, mitigation, inspections, material selection and cost-effective solutions.
A portable method using Raman spectroscopy has been developed to allow operators to respond to situations where the H2S scavenger chemistry is underutilized or where conditions warrants additional scavenger - thus minimizing chemical costs.