Commercially available, higher strength coiled tubing were exposed to sour environments and tested to failure through full size bending fatigue. Preliminary analyses of the results indicate the sour service life of coiled tubing correlates with the hydrogen-induced cracking performance of the coiled tubing steel. Improvements to coiled tubing specifications are discussed.

Subject
Hydrogen induced cracking, Test methods, Materials, Inhibitor performance, Internal pressure, Crack initiation, Mechanical failure, Stress oriented hydrogen induced cracking, Hydrophobic interaction chromatography, Coiled tubing, Fatigue, Sulfide stress cracking, Damage
Keywords:
sulfide stress cracking, SSC, hydrogen-induced cracking, HIC, coiled tubing, fatigue, bending, testing, specifications
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2007
Association for Materials Protection and Performance (AMPP)
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