Granted Patent B2

US 7,417,011 · App. 10/661,669 · Granted Aug 26, 2008

Abstract

Claims (27)

1. A method of modifying the permeability to water of a subterranean formation comprising injecting into the subterranean formation 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, wherein the alkylene oxide branched polyhydroxyetheramine is prepared by reacting a diepoxide selected from the group consisting of diglycidyl ethers of polyhydric phenols 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 of formula R 14 X where R 14 is C 1 -C 4 alkyl and X is halogen, sulfate or sulfonyl to form the salt.

2. The method of claim 1 wherein, the alkylene oxide functionalized amine is selected from the group consisting of amines of formula (a)-(d)

wherein

R 1 is independently selected at each occurrence from a group of formula (—CH 2 —CH 2 —O—) p and a group of formula (—CH 2 —CH(CH 3 )—O—) q or a mixture thereof;

R 3 is C 2 -C 20 alkylene optionally substituted with alkylamido, hydroxy, alkoxy, halo, cyano, aryloxy, alkylcarbonyl or arylcarbonyl;

R 4 is alkoxy;

R 5 is H or —CH 3 ;

Z 1 is independently selected at each occurrence from hydrogen, C 1 -C 7 alkyl and acyl; and

n, p, q and r are independently integers of 1 to about 45.

3. The method of claim 1 wherein the amine having two reactive hydrogen atoms is selected from the group consisting of amines of formula (e)-(g)

wherein

R is C 2 -C 30 alkylene, optionally substituted with one or more hydroxy or hydroxyalkyl groups;

R 2 is C 2 -C 10 alkylene, optionally substituted with alkylamido, hydroxy, alkoxy, cyano, dialkylamine, aryloxy, alkylcarbonyl or arylcarbonyl;

R 3 is C 2 -C 20 alkylene optionally substituted with alkylamido, hydroxy, alkoxy, halo, cyano, aryloxy, alkylcarbonyl or arylcarbonyl; and

Z is hydrogen, alkylamido, hydroxy, dialkylamine, alkoxy, aryoxy, cyano, alkylcarbonyl, or arylcarbonyl.

4. The method of claim 3 wherein R is methylene or ethylene; R 2 is ethylene; R 3 is C 2 -C 20 alkylene optionally substituted with alkylamido, dialkylamino, hydroxy or alkoxy; and Z is alkylamido, dialkylamino, hydroxy or alkoxy.

5. The method of claim 3 wherein the amine having 2 reactive hydrogen atoms is selected from the group consisting of methylamine; ethylamine; propylamine; butylamine; sec-butylamine; isobutylamine; 3,3-dimethylbutylamine; hexylamine; benzylamine; 2-amino-1-butanol; 4-amino-1-butanol; 2-amino-2-methyl-1-propanol; 6-amino-1-hexanol; ethanolamine; propanolamine; tris(hydroxymethyl)aminomethane; 1-amino-1-deoxy-D-sorbitol; 3-amino-1,2-propanediol; 2-amino-2-methyl-1,3-propanediol; 2-amino-2-ethyl-1,3-propanediol; 3-(dimethylamino)propylamine; N,N-dimethylethylenediamine; N,N-diethylethylenediamine; 1-(2-aminoethyl)piperidine; 4-(2-aminoethyl)morpholine; 2-(2-aminoethyl)-1-methylpyrrolidine; 1-(2-aminoethyl)pyrrolidine; 2-(2-aminoethyl)pyridine; 2-(2-aminoethoxy)ethanol; 2-(2-aminoethylamino)ethanol; piperazine, 2-methylpiperazine, 2,6-dimethylpiperazine; 2-(methylamido)piperazine; N,N′-bis(2-hydroxyethyl)ethylenediamine, N,N′-dimethylethylenediamine, N,N′-dimethyl-1,4-phenylenediamine and N,N′-dimethyl-1,6-hexanediamine.

6. The method of claim 1 wherein the diglycidyl ether of a polyhydric phenol is selected from diglycidyl ethers of resorcinol; catechol; hydroquinone; bisphenol A; bisphenol F; bisphenol E; bisphenol K; 4,4′-dihydroxydiphenyl sulfide; bisphenol S; 4,4′-thiodiphenol; 2,6-dihydroxynaphthalene; 1,4′-dihydroxynapthalene; 9,9-bis(4-hydroxyphenyl)fluorene; dihydroxy dinitrofluorenylidene; diphenylene; 2,2-bis(4-hydroxyphenyl)-acetamide; 2,2-bis(4-hydroxyphenyl)ethanol; 2,2-bis(4-hydroxyphenyl)-N-methylacetamide; 2,2-bis(4-hydroxyphenyl)-N,N-dimethylacetamide; 3,5-dihydroxyphenyl-acetamide; 2,4-dihydroxyphenyl-N-(hydroxyethyl)-acetamide; 2,2-bistris-hydroxyphenyl methane; 2,6,2′,6′-tetrabromo-p,p′-bisphenol A; 2,6,2′,6′-tetramethyl-3,5,3′-tribromo-p,p′-biphenol; 2,6,2′,6′-tetramethyl-3,5,3′5′-tetrabromo-p,p′-biphenol; tetramethylbiphenol; 4,4′-dihydroxydiphenylethylmethane; 3,3′-dihydroxydiphenyldiethylmethane; 3,4′-dihydroxydiphenylmethylpropylmethane; 4,4′-dihydroxydiphenyloxide; and 4,4′-dihydroxydiphenylcyanomethane.

7. The method of claim 1 wherein the diglycidyl ether of a polyhydric phenol is selected from the diglycidyl ethers of bisphenol A, 4,4′-sulfonyldiphenol, 4,4′-oxydiphenol, 4,4′-dihydroxybenzophenone, 9,9-bis(4-hydroxyphenyl)fluorene and bisphenol F.

8. The method of claim 1 wherein the diglycidyl ether of a polyhydric phenol is the diglycidyl ether of bisphenol A.

9. The method of claim 1 wherein the water-soluble alkylene oxide branched polyhydroxyetheramine comprises secondary amine, tertiary amine or ditertiary amine end groups.

10. The method of claim 9 wherein the water-soluble alkylene oxide branched polyhydroxyetheramine comprising secondary amine, tertiary amine or ditertiary amine end groups is prepared by reacting the diepoxide selected from the group consisting of diglycidyl ethers of polyhydric phenols with one or more alkylene oxide functionalized amines and one or more amines having two reactive hydrogen atoms to form the water-soluble alkylene oxide branched polyhydroxyetheramine and then reacting the water-soluble alkylene oxide branched polyhydroxyetheramine with one or more amines having one or two reactive hydrogen atoms.

11. The method of claim 9 wherein the water-soluble alkylene oxide branched polyhydroxyetheramine comprising secondary amine, tertiary amine or ditertiary amine end groups is prepared by reacting the diepoxide selected from the group consisting of diglycidyl ethers of polyhydric phenols with one or more alkylene oxide functionalized amines and one or more amines having two reactive hydrogen atoms and an amine having 3 or more reactive hydrogen atoms to form the water-soluble alkylene oxide branched polyhydroxyetheramine and then reacting the water-soluble alkylene oxide branched polyhydroxyetheramine with one or more amines having one or two reactive hydrogen atoms.

12. The method of claim 1 wherein the water-soluble alkylene oxide branched polyhydroxyetheramine is prepared by reacting a mixture of the diepoxide selected from the group consisting of diglycidyl ethers of polyhydric phenols and one or more aliphatic or aromatic triepoxides with one or more alkylene oxide functionalized amines, one or more amines having two reactive hydrogen atoms to impart cross linking.

13. The method of claim 1 wherein the water-soluble alkylene oxide branched polyhydroxyetheramine salt is prepared by reacting a mixture of the diepoxide selected from the group consisting of diglycidyl ethers of polyhydric phenols and one or more aliphatic or aromatic triepoxides, one or more alkylene oxide functionalized amines, one or more amines having two reactive hydrogen atoms to impart cross linking and then an acid or alkylating agent.

14. The method of claim 1 wherein the aqueous composition further comprises about 1 to about 10 weight percent of one or more clay stabilization salts.

15. The method of claim 14 wherein the clay stabilization salts are selected from KCl, NaCl, NaBr, sodium acetate and NH 4 Cl.

Assignments (12)