Corrosion inhibiting aqueous emulsions containing hydrophilic group functionalized silicone polymers
AssigneeHalliburton Energy Services, Inc.
InventorsBaireddy Raghava Reddy, Natalie Lynn Pascarella, Tiffany Anne Pinder
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Abstract
Methods of inhibiting corrosion of metal surfaces by aqueous acids are described. The methods include combining a corrosion inhibiting aqueous emulsion with the aqueous acid solution to form a treatment fluid and contacting the metal surface with the treatment fluid. The corrosion inhibiting aqueous emulsion includes one or more silicone polymers having hydrophilic functional groups.
Claims19
A method of inhibiting corrosion of a metal surface contacted by an aqueous acid solution comprising:
- combining a corrosion inhibiting aqueous emulsion with the aqueous acid solution to form a treatment fluid, the corrosion inhibiting aqueous emulsion comprising an internal phase of one or more silicone polymers consisting of a polydimethylsiloxane backbone and hydrophilic functional groups, wherein the hydrophilic functional groups consist of one or more of a hydroxyl group, an amino group, a sulfhydryl group, and a carboxyl group;
- and
- contacting the metal surface with the treatment fluid.
A method of inhibiting corrosion of a metal surface contacted by an aqueous acid solution comprising:
- combining a corrosion inhibiting aqueous emulsion with the aqueous acid solution to form a treatment fluid, the corrosion inhibiting emulsion comprising one or more silicone polymers consisting of a polydimethylsiloxane backbone end-functionalized with amino groups, hydroxyl groups, or both;
- and
- contacting the metal surface with the treatment fluid.
A method of inhibiting corrosion of a metal surface contacted by an aqueous acid solution comprising:
- combining a corrosion inhibiting aqueous emulsion with the aqueous acid solution to form a treatment fluid, the corrosion inhibiting aqueous emulsion comprising a polydimethylsiloxane in an amount of about 30% to about 60% by weight of the corrosion inhibiting aqueous emulsion, wherein the polydimethylsiloxane consists of a polydimethylsiloxane backbone end-functionalized with amino groups or hydroxyl groups;
- and
- contacting the metal surface with the treatment fluid.
Dependencies are inferred from the claim text.