Polymer gel compositions for treating aqueous zones in subterranean formations and methods of treating the aqueous zones

1. A method for treating an aqueous zone of a subterranean formation, the method comprising:

injecting a polymer gel composition into at least a portion of the aqueous zone of the subterranean formation, the polymer gel composition comprising:

a base polymer comprising poly[acrylamide-co-(tert-butyl acrylate)], polyacrylamide homopolymer, or poly[acrylamide-co-(tert-butyl acrylate)] and polyacrylamide homopolymer;

a cross-linking agent; and

an adsorption system comprising at least a silane compound;

where the polymer gel composition has a viscosity of from 5 centipoise to 10 centipoise prior to injection into the aqueous zone;

curing the polymer gel composition in the portion of the aqueous zone to produce a cross-linked polymer gel matrix, where the cross-linked polymer gel matrix produces a barrier that reduces or prevents aqueous materials from flowing from the aqueous zone into a wellbore.

2. The method of claim 1 , where the adsorption system further comprises a silicate component selected from sodium silicate, potassium silicate, or both.

3. The method of claim 1 , where the polymer gel composition further comprises one or more salts selected from ammonium chloride, potassium chloride, or both.

4. The method of claim 1 , in which the base polymer includes polyacrylamides, polyimide acrylates, or both.

5. The method of claim 1 , in which the base polymer has an average molecular weight of from 250,000 to 500,000 grams per mole.

6. The method of claim 1 , in which the cross-linking agent comprises polyethyleneimine.

7. The method of claim 1 , in which the silane compound is an amino-silane compound having the following chemical formula (II):

H 2 N—R 1 —Si(R 2 ) 3   (II)

in which:

R 1 is a linear or branched hydrocarbyl having from 1 to 20 carbon atoms; and

each R 2 is independently selected from a linear or branched hydrocarbyl having from 1 to 10 carbons, an amine group, or an alkoxy group having general formula (—O—R 3 ), where R 3 can be a linear or branched hydrocarbyl having from 1 to 10 carbon atoms, where at least one R 2 is an alkoxy group.

8. The method of claim 1 , in which the silane compound comprises 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, or both.

9. The method of claim 1 , in which the polymer gel composition has a pH of from 9 to 14.

10. The method of claim 1 , comprising injecting the polymer gel composition into the aqueous zone through the drill string, production tubing, or coiled tubing.

11. A polymer gel composition for treating an aqueous zone of a subterranean formation, the polymer gel composition comprising:

from 3 weight percent to 10 weight percent base polymer based on the total weight of the polymer gel composition, where the base polymer comprises poly[acrylamide-co-(tert-butyl acrylate)], polyacrylamide homopolymer, or poly[acrylamide-co-(tert-butyl acrylate)] and polyacrylamide homopolymer;

from 0.3 weight percent to 2.0 weight percent cross-linking agent based on the total weight of the polymer gel composition;

from 3 weight percent to 10 weight percent silane compound based on the total weight of the polymer gel composition; and

the balance water.

12. The polymer gel composition of claim 11 , further comprising from 2 weight percent to 7 weight percent aqueous silicate solution based on the total weight of the polymer gel composition.

13. The polymer gel composition of claim 11 , where the aqueous silicate solution comprises sodium silicate, potassium silicate, or both.

14. The polymer gel composition of claim 11 , in which the base polymer has an average molecular weight of from 250,000 to 500,000 grams per mole.

15. The polymer gel composition of claim 11 , in which the cross-linking agent comprises polyethyleneimine.

16. The polymer gel composition of claim 11 , in which the silane compound is an amino-silane compound having the following chemical formula (II):

H 2 N—R 1 —Si(R 2 ) 3   (II)

in which:

R 1 is a linear or branched hydrocarbyl having from 1 to 20 carbon atoms; and

each R 2 is independently selected from a linear or branched hydrocarbyl having from 1 to 10 carbons, an amine group, or an alkoxy group having general formula (—O—R 3 ), where R 3 can be a linear or branched hydrocarbyl having from 1 to 10 carbon atoms, where at least one R 2 is an alkoxy group.

17. The polymer gel composition of claim 12 , in which the silane compound comprises 3-aminopropyltriethoxysilane, 3-aminopropyltrimethoxysilane, or both.

18. The polymer gel composition of claim 12 , where an initial viscosity of the polymer gel composition is from 5 centipoise to 10 centipoise at surface atmospheric conditions and before cross-linking of the polymer gel composition.

19. The polymer gel composition of claim 12 , in which the polymer gel composition comprises from 5 weight percent to 10 weight percent of the silane compound based on the total weight of the polymer gel composition.

20. The polymer gel composition of claim 12 , in which the polymer gel composition consists essentially of:

from 3 weight percent to 10 weight percent the base polymer based on the total weight of the polymer gel composition;

from 0.3 weight percent to 2.0 weight percent the cross-linking agent based on the total weight of the polymer gel composition;

from 3 weight percent to 10 weight percent the silane compound based on the total weight of the polymer gel composition;

optionally from 2 weight percent to 7 weight percent aqueous silicate solution based on the total weight of the polymer gel composition; and

the balance water.