Polymerizable ionic liquids for use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-9702219-B2
Application number	US-201414759947-A
Country	US
Kind code	B2
Filing date	Oct 1, 2014
Priority date	Oct 1, 2014
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A stabilization composition including a polymerizable ionic liquid (“PIL”) comprising a cationic group, an anionic group, and a polymerizable functional group, wherein the cationic group has a molecular mass in the range of about 20 g/mol to about 500 g/mol and the anionic group has a molecular mass in the range of about 30 g/mol to about 500 g/mol.

First claim

The invention claimed is:

1. A method comprising:
introducing a stabilization composition into a wellbore in a portion of a subterranean formation,
wherein the stabilization composition comprises a polymerizable ionic liquid (“PIL”) comprising a cationic group, an anionic group, and a polymerizable functional group, wherein the stabilization composition further comprises a polymerization initiator that polymerizes the PIL;

coating a face of the portion of the subterranean formation with the stabilization composition; and
polymerizing the PIL in the wellbore.

2. The method of claim 1 , wherein the stabilization composition is included in a base fluid.

3. The method of claim 1 , wherein the face of the portion of the subterranean formation is a fracture face.

4. The method of claim 1 , wherein the cationic group is an organic cationic group.

5. The method of claim 1 , wherein the cationic group has a molecular mass in the range of about 20 g/mol to about 500 g/mol.

6. The method of claim 1 , wherein the cationic group is selected from the group consisting of ammonium, phosphonium, pyridinium, imidazolium, a pyrrolidinium, a cholinium, a pyrazolium, and any combination thereof.

7. The method of claim 1 , wherein the anionic group is selected from the group consisting of an organic anionic group, an inorganic cationic group, and any combination thereof.

8. The method of claim 1 , wherein the anionic group has a molecular mass in the range of about 30 g/mol to about 500 g/mol.

9. The method of claim 1 , wherein the anionic group is selected from the group consisting of a halide, a formate, an alkylsulfate, an alkylphosphate, a glycolate, a nitrate, a tetrafluoroborate, a hexafluorophosphate, a bistriflimide, a triflate, a tosylate, a carboxylate, a sulfate, a sulfonate, a perchlorate, a hexafluoridoantimonate, a hexafluoroarsinate, and any combination thereof.

10. The method of claim 1 , wherein the PIL has the general formula:

wherein X is an anion and R is the polymerizable functional group.

11. The method of claim 1 , wherein the polymerizable functional group is selected from the group consisting of a monofunctional group, a multifunctional group, and any combination thereof.

12. The method of claim 1 , wherein the polymerizable functional group is selected from the group consisting of a vinyl group, a vinyl aryl group, a styryl group, an imino group, an acrylate group, a methacrylate group, an acrylamide group, a methacrylamide group, a styrene group, an acryl amide group, a methacryl amide group, a maleate group, a fumarate group, an iconate group, an allyl group, an allyl amino group, a methallyl group, a crotyl group, a propargyl group, a lipoyl group, a dihydrolipoyl group, and any combination thereof.

13. The method of claim 1 , wherein the PIL is selected from the group consisting of 1-allyl-3-methylimidazolium chloride, 1-allyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide, diallyldimethylammonium-bis(trifluoromethanesulfonyl)imide, and any combination thereof.

14. The method of claim 1 , wherein the polymerization initiator is a thermal initiator selected from the group consisting of an azo initiator, 2,2′-azobis(2-methylpropionamidine) dihydrochloride, 2,2′-azobis(2-methylpropionitrile), an inorganic peroxide initiator, an organic peroxide initiator, and any combination thereof.

15. The method of claim 1 , wherein the polymerization initiator is a photoinitiator selected from the group consisting of an acetophenone photoinitiator, a benzoin photoinitiator, a benzyl photoinitiator, a benzophenone photoinitiator, a cationic photoinitiator, a thioxanthone photoinitiator, an anthraquinone-2-sulfonic acid sodium salt, a 2-tert-butylanthraquinone, a camphorquinone, a diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide, a 9,10-phenanthrenequinone, a phenylbis(2,4,6-trimethylbenzoyl)phosphine oxide, and any combination thereof.

16. The method of claim 1 , further comprising a tubular extending into the wellbore and a pump fluidly coupled to the tubular, wherein the stabilization composition is introduced into the wellbore through the tubular.

17. A method comprising:
providing proppant particulates coated with a stabilization composition, thereby forming coated proppant particulates,
wherein the stabilization composition comprises a polymerizable ionic liquid (“PIL”) comprising a cationic group, an anionic group, and a polymerizable functional group, wherein the stabilization composition further comprises a polymerization initiator that polymerizes the PIL;

introducing the coated proppant particulates into wellbore in a subterranean formation; and
polymerizing the PIL in the wellbore.

18. The method of claim 17 , further comprising a tubular extending into the wellbore and a pump fluidly coupled to the tubular, wherein the coated proppant particulates are introduced into the wellbore through the tubular.

19. A stabilization composition comprising:
a polymerizable ionic liquid (“PIL”) comprising a cationic group, an anionic group, and a polymerizable functional group wherein the stabilization composition further comprises a polymerization initiator that polymerizes the PIL and is present in an amount of from about 0.1% to about 10% by weight of the PIL in the stabilization composition,
wherein the cationic group has a molecular mass in the range of about 20 g/mol to about 500 g/mol and the anionic group has a molecular mass in the range of about 30 g/mol to about 500 g/mol.

Assignees

• Halliburton Energy Services Inc

Inventors

• Stanciu Corneliu
• Ogle James
• Sparks Bradley James

Classifications

• C09K8/56 Primary

  Compositions for consolidating loose sand or the like around wells without excessively decreasing the permeability thereof (compositions for plastering borehole walls C09K8/50; {Soil-conditioning materials or soil-stabilising materials in general C09K17/00}) · CPC title

• C09K8/805

  Coated proppants · CPC title

• C09K8/62

  Compositions for forming crevices or fractures · CPC title

• C09K8/5753

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

• C09K8/575

  containing organic compounds · CPC title