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Method and composition for inhibiting corrosion in high temperature, high pressure gas wells
Method and composition for inhibiting corrosion in high temperature, high pressure gas wells
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机译:在高温高压气井中抑制腐蚀的方法和组合物
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摘要
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 diamines) 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 essentially no petroleum condensate phase exists.
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