Hydrogen-induced cracking and sulphide stress cracking...

Details Hydrogen-induced cracking and sulphide stress cracking... Hydrogen-induced cracking and sulphide stress cracking...

C - Chemistry, Metallurgy

22

C

C22C 38/12 (2006.01) C22C 38/22 (2006.01)

Patent

CA 2231290

A steel alloy, for use in casing for oil and gas wells in low pH environments. The steel alloy has a carbon range by weight of 0.15% to 0.35 %, a manganese range by weight of 0.60% to 1.50%, a molybdenum range by weight of 0.15% to 0.65%, and a sulfur range by weight of less than 0.002%. The steel alloy also has, by weight, a chromium range of less than 0.50%, an aluminum range of 0.030% to 0.050% and a calcium range of 0.0020% to 0.0045%.

Alliage d'acier pour tubage de puits de pétrole ou de gaz dans des milieux à faible pH. En poids, l'alliage renferme 0,15 à 0,35 % de carbone, 0,60 à 1,50 % de manganèse, 0,15 à 0,65 % de molybdène, et moins de 0,002 % de soufre. Toujours en poids, l'alliage d'acier contient également moins de 0,50 % de chrome, 0,030 à 0,050 % d'aluminium, et 0,0020 à 0,0045 % de calcium.

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