Fluorosurfactants and treatment fluids for reduction of water blocks, oil blocks, and/or gas condensates and associated methods

• US 8,772,204 B2
• Filed: 03/09/2012
• Issued: 07/08/2014
• Est. Priority Date: 09/03/2009
• Status: Expired due to Fees

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Norman, Lewis R., Saini, Rajesh K.
• Primary Examiner(s): Figueroa, John J
• Application Number:
  US13/417,020
• Publication Number:
  US 20120172262A1
• Time in Patent Office: 851 Days
• Field of Search: None
• US Class Current: 507/205
• CPC Class Codes: C09K 8/035 Organic additives
• CPC Class Codes: C09K 8/52 Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
• CPC Class Codes: C09K 8/602 containing surfactants
• CPC Class Codes: C09K 8/604 Polymeric surfactants
• CPC Class Codes: C09K 8/68 containing organic compounds
• CPC Class Codes: C09K 8/78 for preventing sealing

Abstract

The present invention relates to fluids useful for subterranean operations, and more particularly, to fluorosurfactants useful for the reduction of water blocks, gas blocks, and/or gas condensates and their associated treatment fluids and methods. Provided is a method of treating a subterranean formation. The Method may comprise contacting the subterranean formation with a fluorosurfactant. The fluorosurfactant may comprise an amine group, wherein the amine group comprises at least one substituent selected from the group consisting of a fluoroalkyl group, a fluoroalkenyl group, and combinations thereof, wherein the at least one substituent comprises about 3 carbons to about 22 carbons. Also provided are polymeric surfactants and treatment fluids that comprise fluorosurfactants.

Claims

1. A treatment fluid comprising:

a carrier fluid; and

a cationic fluorosurfactant comprising an amine group, wherein the amine group comprises at least one substituent comprising about 3 carbons to about 22 carbons and selected from the group consisting of a fluoroalkyl group, a fluoroalkenyl group, and combinations thereof.

2. The treatment fluid of claim 1 wherein the fluorosurfactant comprises a polymeric surfactant comprising repeating nitrogens that comprise the at least one substituent.

3. The treatment fluid of claim 1 wherein the amine group is positively charged.

4. The treatment fluid of claim 1 wherein the amine group is a quaternary amine.

5. The treatment fluid of claim 1 wherein the fluorosurfactant comprises a surfactanthaving the following general structure:

6. The treatment fluid of claim 1 wherein the fluorosurfactant comprises a surfactant having the following general structure:

7. The treatment fluid of claim 1 wherein the fluorosurfactant comprises a surfactant having the following general structure:

8. The treatment fluid of claim 1 wherein the fluorosurfactant is present in the treatment fluid in an amount of about 0.01% to about 10% by weight of the treatment fluid.

9. The treatment fluid of claim 1 wherein the fluorosurfactant comprises a reaction product of a reaction comprising polyethylene imine and perfluoroalkyl halide.

10. The treatment fluid of claim 1 wherein the substituent comprises the fluoroalkyl group and wherein the fluoroalkyl group comprises a perfluoroalkyl group.

11. The treatment fluid of claim 1 wherein the treatment fluid further comprises at least one additive selected from the group consisting of a proppant particulate, a gravel particulate, a gelling agent, a crosslinking agent, a salt, an additional surfactant, a fluid loss control additive, an acid, gas, a surface modifying agent, a tackifying agent, a foamer, a corrosion inhibitor, a scale inhibitor, a catalyst, a clay control agent, a biocide, a friction reducer, an antifoam agent, a bridging agent, a dispersant, a flocculant, H₂S scavenger, CO₂ scavenger, an oxygen scavenger, a lubricant, a viscosifier, a breaker, a weighting agent, a relative permeability modifier, a resin, a wetting agent, and a coating enhancement agent.

12. The treatment fluid of claim 1 wherein the treatment fluid further comprises a non-fluoro surfactant in ratio of the non-fluoro surfactant to the fluorosurfactant of from about 1:

99 to about 99;

1.

13. The treatment fluid of claim 1 wherein the treatment fluid further comprises a non-fluoro quaternary surfactant.

14. A treatment fluid comprising:

a carrier fluid; and

a fluorosurfactant in an amount of about 0.01% to about 10% by weight of the treatment fluid, wherein the fluorosurfactant has the following general structure;

15. The treatment fluid of claim 14 wherein the treatment fluid further comprises at least one additive selected from the group consisting of a proppant particulate, a gravel particulate, a gelling agent, a crosslinking agent, a salt, an additional surfactant, a fluid loss control additive, an acid, gas, a surface modifying agent, a tackifying agent, a foamer, a corrosion inhibitor, a scale inhibitor, a catalyst, a clay control agent, a biocide, a friction reducer, an antifoam agent, a bridging agent, a dispersant, a flocculant, H₂S scavenger, CO₂ scavenger, an oxygen scavenger, a lubricant, a viscosifier, a breaker, a weighting agent, a relative permeability modifier, a resin, a wetting agent, and a coating enhancement agent.

16. The treatment fluid of claim 14 wherein the treatment fluid further comprises a non-fluoro quaternary surfactant.

17. A treatment fluid comprising:

a carrier fluid;

a cationic fluorosurfactant comprising a positively charged amine group, wherein the amine group comprises at least one substituent comprising about 3 carbons to about 22 carbons and selected from the group consisting of a fluoroalkyl group, a fluoroalkenyl group, and combinations thereof; and

a non-fluoro quaternary surfactant

18. The treatment fluid of claim 17 wherein the fluorosurfactant has the following general structure:

19. The treatment fluid of claim 17 wherein the fluorosurfactant has the following general structure:

20. The treatment fluid of claim 17 wherein the fluorosurfactant has the following general structure: