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US 10,619,091 B2Granted
Imidazolinium compounds as dual corrosion inhibitors
AssigneeHalliburton Energy Services, Inc.
InventorSushant Dattaram Wadekar
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Abstract
A method comprises obtaining or providing a treatment fluid comprising an imidazolinium compound and placing the treatment fluid in a subterranean formation. The imidazolinium compound functions as a viscoelastic surfactant (VES) gelling agent and as a corrosion inhibitor.
Claims29
A method comprising:
- obtaining or providing a treatment fluid, wherein the treatment fluid is an acidizing fluid comprising an acid and a compound of the formula (III):
- placing the treatment fluid in a subterranean formation via equipment comprising metal;
- inhibiting corrosion of the metal in the presence of the acid with the compound, wherein the conditions comprise a temperature from about 100° F. to about 250° F.;
- after the placing, contacting the acid with the subterranean formation so as to form spent acid such that the treatment fluid comprises spent acid after the placing;
- and
- gelling the treatment fluid in the presence of the spent acid with the compound, wherein the conditions comprise a temperature from about 100° F. to about 250° F.
3 more elements
Dependencies are inferred from the claim text.