Defoaming Methods and Compositions
AssigneeHalliburton Energy Services, Inc.
InventorsJiten Chatterji, Bobby J. King
Life of this patent
Estimating the term…
Abstract
Embodiments of the present invention are directed to defoaming methods and compositions for well treatment fluids. An exemplary embodiment of the present invention provides a method of defoaming a well treatment fluid, comprising combining a defoaming composition with the well treatment fluid, wherein the defoaming composition comprises an amide of a carboxylic acid, a polypropylene glycol, an ethoxylated and propoxylated fatty alcohol, an ethoxylated alcohol comprising from 3 carbons to 6 carbons, and a hydrophobic silica in an amount of up to about 3% by weight of the defoaming composition.
Claims20
A composition comprising:
- a well treatment fluid;
- and
- a defoaming composition comprising an amide of carboxylic acid, a polypropylene glycol, an ethoxylated and propoxylated fatty alcohol, an ethoxylated alcohol comprising from 3 carbons to 6 carbons, and a hydrophobic silica in an amount of up to about 3% by weight of the defoaming composition.
A composition comprising:
- cement;
- water;
- and
- a defoaming composition comprising an amide of carboxylic acid, a polypropylene glycol, an ethoxylated and propoxylated fatty alcohol, an ethoxylated alcohol comprising from 3 carbons to 6 carbons, and a hydrophobic silica in an amount of up to about 3% by weight of the defoaming composition.
A composition comprising:
- water;
- and
- a defoaming composition comprising:
- an amide of a nonanioc acid having a carbon chain in the range of from 8 carbons to 12 carbons,
- a polypropylene glycol,
- a C12-C15 fatty alcohol ethoxylated with from about 4 moles to about 6 moles of ethylene oxide per mole of the fatty alcohol and propoxylated with from about 4 moles to about 6 moles of propylene oxide per mole of the fatty alcohol,
- an alcohol comprising from 3 carbons to 6 carbons and ethoxylated with from about 3 moles to about 6 moles of ethylene oxide per mole of the alcohol, and
- a hydrophobic silica in an amount of up to about 3% by weight of the defoaming composition.
Dependencies are inferred from the claim text.