Decoding Hydrogen Embrittlement in High Strength Coiled Tubing: Insights from Acid-Induced Failures, Field Data Analysis, and Corrosion Management Strategies
G. McClelland,
I. I. Galvan,
G. L. Mallanao
et al.
Abstract:Recent reports have highlighted hydrogen embrittlement (HE) of high strength, quench-and-temper (Q&T) coiled tubing (CT) resulting from hydrochloric (HCl) acid usage in sour environments. HCl acid treatments expose CT surfaces to aggressive corrosion, often exacerbated by H2S from formation fluids or as a chemical reaction. Helping the CT industry recognize the morphologies of damage when the tube is retired and re-evaluating the CT grade selection and chemicals are vital for averting costly and dangerous … Show more
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