| 摘要 |
Corrosive effects arising during oilfield treatment applications are inhibited and/or prevented by introducing into an oil or gas well at least one compound of formula I: wherein: R<SUP>1 </SUP>is independently H, -[-C<SUB>n</SUB>H<SUB>2n</SUB>O-]<SUB>a</SUB>-H, or an alkyl group having from 1 to about 24 carbon atoms; R<SUP>2 </SUP>is independently H or -[-C<SUB>n</SUB>H<SUB>2n</SUB>O-]<SUB>b</SUB>-H, R<SUP>3 </SUP>is independently -[-CH<SUB>2</SUB>]<SUB>c</SUB>-, or -C<SUB>d</SUB>H<SUB>2d</SUB>-[-OC<SUB>n</SUB>H<SUB>2n</SUB>-]<SUB>e</SUB>-, R<SUP>4 </SUP>is independently H or -[-C<SUB>n</SUB>H<SUB>2n</SUB>O-]<SUB>f</SUB>-H, R<SUP>5 </SUP>is independently H or -[-C<SUB>n</SUB>H<SUB>2n</SUB>O-]<SUB>g</SUB>-H, a is from about 1 to about 8; b+f+g is between 0 to about 30; c is from about 1 to 6; d is from about 1 to 6; e is from about 1 to about 8; and n is 2 or 3. Such corrosive effects are especially inhibited in the treatment of sour wells where H<SUB>2</SUB>S corrosion is a potential problem as well as conduits used during the treatment of subterranean formations.
|
