engleski

Identification of hydrogen trapping in oil well steel by scanning electron microscopy

Based on the field report, wsudden cr4aking of C-Mn-V tubing occured of one 3000 m deep oil well. The damaged tuing was removed and analyzed by usual methods: chemical analysis. mechanical tasting, metallography, scanningelectron microskopy and X-ray diffraction. Tensocorrosion experiments were performed too in order to asses the sensitivity of steel to sulfide stress corrosion cracking. For this purpose, the samples were machined out of the pipe material and examined in laboratory according to the standardized procedure.

electron microscopy

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