Composition Comprising an Alkoxylated Amine Compound and a Carboxylic Acid Compound, Use Thereof in Water in Oil Emulsions and Process Using the Composition as or as Part of a Drilling Fluid

A method of improving flow of heavy hydrocarbons comprising

• introducing a composition comprising:
• (A) one or more alkoxylated primary amine, alkoxylated secondary amine, or alkoxylated tertiary amine compounds and
• (B) one or more carboxylic acid compounds selected from one or more members of the group of polyalkylene glycol ether carboxylic acids of a monoalcohol and polyalkylene glycol ether carboxylic acids of a polyol,
• (F) water,
• wherein the composition further comprises salts dissolved in the water (F) in a concentration of greater than 1% by wt. and the composition is a water-in-oil emulsion wherein the oil (C) forms the continuous phase and the water (F) forms the dispersed phase,
• into heavy crude oils or extra heavy crude oils to form water-in-oil emulsions with reduced viscosity
• wherein the polyalkylene glycol ether carboxylic acids of a monoalcohol and/or a polyol have the general formula
• R3—[—O—(Z)p-E]y,
• wherein
• R3 stands for a hydrocarbon radical with 1 to 24 hydrocarbon atoms,
• Z stands for alkoxylate groups —CH2—CHR2—O— or CHR2—CH2—O— which may or may not be different for each p,
• R2 stands for H, a methyl group or an ethyl group, which may or may not be different for each p,
• E stands for —CH2—COOH,
• p stands for average numerical values from greater than 0 to 15 and
• y is 1 in the case of a monoalcohol, and 2, 3, 4, 5 or 6 in the case of a polyol.

A method of forming a water-in-oil emulsion comprising:

• introducing a composition comprising:
• (A) one or more alkoxylated primary amine, alkoxylated secondary amine, or alkoxylated tertiary amine compounds and
• (B) one or more carboxylic acid compounds selected from one or more members of the group of polyalkylene glycol ether carboxylic acids of a monoalcohol and polyalkylene glycol ether carboxylic acids of a polyol,
• into a mixture of water and oil,
• wherein the polyalkylene glycol ether carboxylic acids of a monoalcohol and/or a polyol have the general formula
• R3—[—O—(Z)p-E]y
• wherein
• R3 stands for a hydrocarbon radical with 1 to 24 hydrocarbon atoms,
• Z stands for alkoxylate groups —CH2—CHR2—O— or CHR2—CH2—O— which may or may not be different for each p,
• R2 stands for H, a methyl group or an ethyl group, which may or may not be different for each p,
• E stands for —CH2—COOH,
• p stands for average numerical values from greater than 0 to 15 and
• y is 1 in the case of a monoalcohol, and 2, 3, 4, 5 or 6 in the case of a polyol.