| 摘要 |
A corrosion inhibitor composition, for reducing the corrosivity of acids towards ferrous metals at elevated temperatures, comprises… (i) at least one acetylenic alcohol having the general formula …<CHEM>… wherein R1, R2 and R3 are each a hydrogen, alkyl, phenyl, substituted phenyl or hydroxy-alkyl radical;… (ii) at least one quaternary ammonium compound;… (iii) at least one hydrocarbon compound which exhibits high oil-wetting characteristics; and… (iv) at least one antimony compound capable of activation by the other constituents of said corrosion inhibitor composition whereby the corrosivity of said corrosive acid in contact with said ferrous metal is reduced. …<??>The compositions are particularly useful in the acidization of subterranean formations and wellbores. |
