Method of transporting oil and gas using casing made from...

Details Method of transporting oil and gas using casing made from... Method of transporting oil and gas using casing made from...

C - Chemistry, Metallurgy

22

C

C22C 38/18 (2006.01) C22C 38/02 (2006.01) C22C 38/04 (2006.01) C22C 38/06 (2006.01) C22C 38/12 (2006.01) F17D 1/00 (2006.01)

Patent

CA 2412177

A method for transporting oil and gas in a low pH environment from oil and gas wells in a casing comprising a hydrogen-induced cracking and sulphide- stress cracking resistant steel alloy. The steel alloy has a carbon range by weight of 0.15% to 0.35 %, a manganese range by weight of 0.60% to 1.10%,a molybdenum range by weight of 0.15% to 0.65%, a calcium range by weight of 0.0020% to 0.0045% and a sulphur range by weight of less than 0.002%. The steel alloy also has, by weight, a chromium range of less than 0.50%, and an aluminum range of 0.030% to 0.050%.

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