Method and composition for inhibiting corrosion in high...

Details Method and composition for inhibiting corrosion in high... Method and composition for inhibiting corrosion in high...

E - Fixed Constructions

21

B

31/52

E21B 37/00 (2006.01) C09K 8/54 (2006.01) C23F 11/10 (2006.01)

Patent

CA 1132785

ABSTRACT OF THE DISCLOSURE A relatively nonvolatile, high molecular weight corrosion inhibitor and inhibitor carrier produced by activating a dialkyl disulfide oil by the addition of a relatively high molecular weight aliphatic amine (e.g., a fatty amine, particularly the N-alkyl-1,3-propane dia- mines) and optionally further increasing the molecular weight by the addition of elemental sulfur, which exhibits corrosion inhibition on its own and in combination with a conventional oil base corrosion inhibitor additive. Such a composition is particularly useful in sustaining a liquid film forming phase at bottomhole conditions for high temperature, high pressure gas wells wherein essen- tially no petroleum condensate phase exists. 79130ART0086

352762

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