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US 8,940,106 B1Granted
Methods for using improved urea hydrochloride compositions
AssigneeGreen Products & Technologies, L.L.C.
InventorJohn T. MacDonald
Life of this patent
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Abstract
A composition including HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone is provided in a method for solubilizing calcium carbonate in an aqueous suspension or dispersion of calcium carbonate.
Claims12
A method for pickling, the method comprising:
- pickling using a composition comprising HCl, urea, complex substituted keto-amine-hydrochloride, at least one alcohol selected from the group consisting of isopropyl alcohol and propargyl alcohol, an ethoxylate, and at least one ketone selected from the group consisting of methyl vinyl ketone, acetone, and acetophenone.
A method for perforation cleaning, the method comprising:
- cleaning the perforation using a composition comprising HCl, urea, complex substituted keto-amine-hydrochloride, at least one alcohol selected from the group consisting of isopropyl alcohol and propargyl alcohol, an ethoxylate, and at least one ketone selected from the group consisting of methyl vinyl ketone, acetone, and acetophenone.
A method for cleaning a filter cake, the method comprising:
- cleaning the filter cake using a composition comprising HCl, urea, complex substituted keto-amine-hydrochloride, at least one alcohol selected from the group consisting of isopropyl alcohol and propargyl alcohol, an ethoxylate, and a at least one ketone selected from the group consisting of methyl vinyl ketone, acetone, and acetophenone.
Dependencies are inferred from the claim text.