Method and composition for recovering hydrocarbon fluids from a subterranean reservoir

An aqueous composition comprising from about 0.005 percent to about 2 percent, by weight, of a water-soluble alkylene oxide branched polyhydroxyetheramine or a salt thereof and about 0.005 to about 2 percent by weight of one or more solubilizing agents, wherein the alkylene oxide branched polyhydroxyetheramine is prepared by reacting a diepoxide and optionally one or more aliphatic or aromatic triepoxides with one or more alkylene oxide functionalized amines and one or more amines having two reactive hydrogen atoms and optionally reacting the resulting polyhydroxyethermaine with an acid or alkylating agent to form the salt.

An aqueous composition comprising about 10 percent to about 50 weight percent of one or more water-soluble, alkylene oxide branched polyhydroxyetheramines or a salt therof and about 1 to about 90 weight percent of one or more solubilizing agents, wherein the alkylene oxide branched polyhydroxyetheramine is prepared by reacting a diepoxide and optionally one or more aliphatic or aromatic triepoxides with one or more alkylene oxide functionalized amines and one or more amines having two reactive hydrogen atoms and optionally reacting the resulting polyhydroxyetheramine with an acid or alkylating agent to form the salt.

A water-soluble alkylene oxide branched polyhydroxyetheramine salt prepared by reacting a diepoxide with one or more alkylene oxide functionalized amine and one or more amines having 2 reactive hydrogen atoms and then reacting the resulting polyhydroxyetheramine with an acid or alkylating agent.

A water-soluble alkylene oxide branched polyhydroxyetheramine salt comprising secondary amine, tertiary amine or ditertiary amine end groups prepared by reacting a diepoxide with one or more alkylene oxide functionalized amine and one or more amines having 2 reactive hydrogen atoms and then reacting the resulting polyhydroxyetheramine with one or more amines having one or two reactive hydrogen atoms followed by an acid or alkylating agent.

A water-soluble alkylene oxide branched polyhydroxyetheramine salt comprising secondary amine, tertiary amine or ditertiary amine end groups prepared by reacting a diepoxide with one or more alkylene oxide functionalized amine, one or more amines having 2 reactive hydrogen atoms and an amine having 3 or more reactive hydrogen atoms and then reacting the resulting polyhydroxyetheramine with one or more amines having one or two reactive hydrogen atoms followed by an acid or alkylating agent.