Reaction products of acrylamide polymers and methods for use thereof as relative permeability modifiers

Patent metadata

Field	Value
Publication number	US-9644130-B2
Application number	US-201414438514-A
Country	US
Kind code	B2
Filing date	Jun 27, 2014
Priority date	Jun 27, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Suppressing passage of an aqueous fluid in a subterranean formation in preference to passage of an oleaginous fluid can often be desirable. Methods for suppressing the passage of an aqueous fluid in a subterranean formation, particularly a carbonate formation, can comprise: providing a treatment fluid comprising a carrier fluid and a relative permeability modifier comprising a reaction product of 1) an acrylamide polymer, any copolymer thereof, any derivative thereof, any salt thereof, or any combination thereof, and 2) a plurality of amine-containing compounds or any salt thereof, each amine-containing compound containing a primary amine, a secondary amine, or any combination thereof, and the amine-containing compounds being randomly reacted with at least a portion of the amide groups of the acrylamide polymer; and introducing the treatment fluid into a subterranean formation.

First claim

The invention claimed is:

1. A method comprising:
providing a treatment fluid comprising a carrier fluid and a relative permeability modifier comprising a reaction product of 1) an acrylamide polymer, any copolymer thereof, any derivative thereof, any salt thereof, or any combination thereof, and 2) a plurality of amine-containing compounds or any salt thereof, each amine-containing compound containing a primary amine, a secondary amine, or any combination thereof, and the amine-containing compounds being randomly reacted through transamidation with at least a portion of the amide groups of the acrylamide polymer; and
introducing the treatment fluid into a subterranean formation.

2. The method of claim 1 , further comprising:
at least partially suppressing passage of an aqueous fluid in the subterranean formation with the relative permeability modifier, the passage of the aqueous fluid being suppressed to a greater extent than is passage of an oleaginous fluid.

3. The method of claim 1 , wherein the subterranean formation comprises a carbonate formation.

4. The method of claim 1 , wherein the amine-containing compounds comprise one or more of a primary alkyl or aryl amine having about 2 to about 30 carbon atoms, a phosphonic acid-terminated primary alkyl amine, a sulfonic acid-terminated primary alkyl amine, an iminodicarboxylic acid-terminated primary alkyl amine, or any salt thereof.

5. The method of claim 4 , wherein the acrylamide polymer is reacted with the primary alkyl or aryl amine having about 2 to about 30 carbon atoms and at least one other amine-containing compound.

6. The method of claim 4 , wherein the acrylamide polymer is reacted with at least two of the amine-containing compounds.

7. The method of claim 4 , wherein the acrylamide polymer is reacted with at least some of each of the amine-containing compounds.

8. The method of claim 4 , wherein the acrylamide polymer comprises polyacrylamide, a copolymer of acrylamide and t-butyl acrylate, a partially hydrolyzed variant thereof, a hydrophobically modified variant thereof, any derivative thereof, any salt thereof, or any combination thereof.

9. A method comprising:
providing a treatment fluid comprising a carrier fluid and a relative permeability modifier comprising a reaction product of 1) an acrylamide polymer, any copolymer thereof, any derivative thereof, any salt thereof, or any combination thereof, and 2) a plurality of amine-containing compounds or any salt thereof, the amine-containing compounds being randomly reacted through transamidation with at least a portion of the amide groups of the acrylamide polymer and the amine-containing compounds comprising one or more of the following compounds or any salt thereof:
a primary alkyl or aryl amine having about 2 to about 30 carbon atoms,
a phosphonic acid-terminated primary alkyl amine,
a sulfonic acid-terminated primary alkyl amine, and
an iminodicarboxylic acid-terminated primary alkyl amine;

introducing the treatment fluid into a carbonate formation; and
at least partially suppressing passage of an aqueous fluid in the carbonate formation with the relative permeability modifier, the passage of the aqueous fluid being suppressed to a greater extent than is passage of an oleaginous fluid.

10. The method of claim 9 , wherein the acrylamide polymer comprises polyacrylamide, a copolymer of acrylamide and t-butyl acrylate, a partially hydrolyzed variant thereof, a hydrophobically modified variant thereof, any derivative thereof, any salt thereof, or any combination thereof.

11. The method of claim 9 , wherein the acrylamide polymer is reacted with the primary alkyl or aryl amine having about 2 to about 30 carbon atoms and at least one other amine-containing compound.

12. The method of claim 9 , wherein the acrylamide polymer is reacted with at least two of the amine-containing compounds.

13. The method of claim 9 , wherein the acrylamide polymer is reacted with at least some of each of the amine-containing compounds.

Assignees

• Halliburton Energy Services Inc

Inventors

• Recio Iii Antonio
• Eoff Larry Steven
• Reddy B Raghava
• Lewis Christopher Austin

Classifications

• C09K8/5083

  obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• C09K8/502

  Oil-based compositions · CPC title

• C09K8/035 Primary

  Organic additives · CPC title

• C08F20/56

  Acrylamide; Methacrylamide · CPC title

• C09K8/50

  Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls (compositions for consolidating loose sand or the like around wells C09K8/56) · CPC title