Method for inhibiting corrosion in high temperature, high...

Details Method for inhibiting corrosion in high temperature, high... Method for inhibiting corrosion in high temperature, high...

C - Chemistry, Metallurgy

23

F

31/30, 31/48

C23F 11/14 (2006.01) C09K 8/54 (2006.01)

Patent

CA 1131002

ABSTRACT OF THE DISCLOSURE A method for inhibiting corrosion in a high tem- perature, high pressure gas well in which an aqueous or bring phase is present but no petroleum condensate phase exist at bottomhole conditions, involving the injection of a relatively high molecular weight predominantly aliphatic amine (e.g., a fatty amine, particularly, the N-alkyl-1,3-propane diamine) into the gas well on its own or in combination with conventional oil based corrosion inhibitor additives to inhibit corrosion. Such a method is particularly useful in sustaining a liquid film forming phase at hostile bottomhole conditions.

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