Compositions and methods for forming and utilizing stable, single-component resin mixture

Patent metadata

Field	Value
Publication number	US-9840655-B2
Application number	US-201314916934-A
Country	US
Kind code	B2
Filing date	Sep 20, 2013
Priority date	Sep 20, 2013
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A method of treating a subterranean formation including providing a treatment fluid comprising a hardenable acid curable resin and a hydrolysable dimer acid ester. The treatment fluid is combined with a carrier fluid and is introduced into a subterranean formation. Upon the hydrolyzing of the ester in the formation and the contacting of unconsolidated proppants, the treatment method produces consolidated proppants.

First claim

What is claimed is:

1. A well treatment method comprising:
providing wellbore in a subterranean formation;
providing a first fluid comprising a hardenable acid curable resin and a hydrolysable dimer acid ester capable of generating a dimerized fatty acid when exposed to water;
providing a carrier fluid;
placing a first stream comprising the first fluid and the carrier fluid into a zone in the subterranean formation, said zone comprising unconsolidated particulates; and
forming consolidated particulates upon the contacting of the unconsolidated particles with the reaction product of the hardenable acid curable resin, hydrolysable dimer acid ester and water in the formation, thereby forming a cured resin, wherein the reaction product includes a dimerized fatty acid generated from the reaction of the hydrolysable dimer acid ester and water in the formation, and the dimerized fatty acid is incorporated in the cured resin that consolidates the particulates.

2. The method of claim 1 , wherein the hardenable acid curable resin comprises at least one member selected from the group consisting of bisphenol A diglycidyl ether resins, butoxymethyl butyl glycidyl ether resins, bisphenol A-epichlorohydrin resins, bisphenol F resins, polyepoxide resins, novolak resins, polyester resins, urethane resins, glycidyl ether resins, other epoxide resins, and combinations thereof.

3. The method of claim 1 , wherein the hardenable acid curable resin comprises a urethane resin.

4. The method of claim 1 , wherein the hydrolysable dimer acid ester capable of generating a dimerized fatty acid when exposed to water comprises at least one member selected from the group consisting of polyacids, synthetic acids produced from fatty acids, maleic anhydride, acrylic acid; and any combination thereof.

5. The method of claim 4 , wherein the polyacid comprises C 36 dibasic acids including at least one of dimer oligomers, trimer oligomers, tetramer oligomers, pentamer oligomers, hexamer oligomers, heptamer oligomers, octamer oligomers, nonamer oligomers, decamer oligomers, oligomers, monomer acids, and any combination thereof.

6. The method of claim 1 , wherein the first stream further comprises a catalyst.

7. The method of claim 6 , wherein the catalyst comprises at least one member selected from organic amine bases, inorganic bases, and mixtures thereof.

8. The method of claim 7 , wherein the organic amine base is selected from the following group consisting of pyridine, isoquinoline, quinoline, N,Ndimethylcyclohexylamine, tributylamine, tripropylamie, N-ethylmorpholine, dimethylaniline, and mixtures thereof.

9. The method of claim 7 , wherein the inorganic base is selected from the following group consisting of potassium hydroxide, sodium hydroxide, ammonium hydroxide, and mixtures thereof.

10. The method of claim 1 , wherein the first stream further comprises a silane coupling agent.

11. The method of claim 10 , wherein the silane coupling agent comprises at least one member selected from the group consisting of N-2-(aminoethyl)-3-aminopropyltrimethoxysilane, 3-glycidoxypropyltrimethoxysilane, n-beta-(aminoethyl)-gamma-aminopropyl trimethoxysilane, and combinations thereof.

12. The method of claim 1 , wherein the first stream further comprises a surfactant for facilitating the contacting of the unconsolidated particulates with the reaction product.

13. The method of claim 12 , wherein the surfactant comprises at least one member is selected from the group consisting of an ethoxylated nonyl phenol phosphate ester, mixtures of one or more cationic surfactants, a C 12 -C 22 alkyl phosphonate surfactant, a mixture of one or more non-ionic surfactants, an alkyl phosphonate surfactant, or mixtures thereof.

14. The method of claim 1 , wherein the zone comprises proppant particulates forming a proppant pack in a fracture.

15. The method of claim 14 , wherein the proppant is sand.

16. The method of claim 1 , wherein the forming comprises reacting the hardenable acid curable resin, hydrolysable dimer acid ester, and water in the formation, thereby forming a reaction product.

17. The method of claim 16 , wherein the reaction product comprises a dimerized fatty acid incorporated into the backbone of the polyester polymer of the hardenable acid curable resin.

18. The method of claim 16 , wherein the hardenable acid curable resin is a bisphenol A epoxy resin.

19. The method of claim 16 , further comprising curing the reaction product to the unconsolidated particulates.

20. The method of claim 1 , wherein the hydrolysable dimer acid ester is encapsulated in a hydrolysable material.

21. The method of claim 1 , wherein the carrier fluid comprises a non-aqueous base fluid.

22. The method of claim 1 , wherein at least one of the hardenable acid curable resin and the hydrolysable dimer acid ester is soluble in the carrier fluid.

23. A method comprising:
placing a first stream comprising a hardenable acid curable resin and a hydrolysable dimer acid ester capable of generating a dimerized fatty acid when exposed to water into a wellbore in a subterranean formation, said formation comprising unconsolidated particulates; and
forming consolidated particulates upon the contacting of the unconsolidated particles with the reaction product of the hardenable acid curing resin, hydrolysable dimer acid ester and water in the formation, thereby forming a cured resin, wherein the reaction product includes a dimerized fatty acid generated from the reaction of the hydrolysable dimer acid ester and water in the formation, and the dimerized fatty acid is incorporated in the cured resin that consolidates the particulates.

24. A method comprising:
providing a wellbore in a subterranean formation;
providing a first fluid comprising a hardenable acid curable resin and a hydrolysable dimer acid ester capable of generating a dimerized fatty acid;
providing proppant particulates;
coating the proppant particulates with the first fluid;
providing a second stream comprising an aqueous base fluid;
creating at least one fracture in said subterranean formation;
placing a first stream comprising the coated proppant particulates and the second stream into the subterranean and into at least one fracture therein;
wherein the proppant particulates form a proppant pack in the at least one fracture; and
forming consolidated proppant particulates upon the curing of the coated proppant particulates in the proppant pack upon hydrolyzing of at least a portion of said dimer acid ester, thereby forming a cured resin, wherein the reaction product includes a dimerized fatty acid generated from the reaction of the hydrolysable dimer acid ester and water in the formation, and the dimerized fatty acid is incorporated in the cured resin that consolidates the particulates.

25. A well treatment system comprising:
a well treatment apparatus configured to:
form or provide a first stream comprising a hardenable acid curable resin and a hydrolysable dimer acid ester capable of generating a dimerized fatty acid when exposed to water;
place the first stream into a zone in a subterranean formation, said zone comprising unconsolidated particulates; and
form consolidated particulates upon the contacting of the unconsolidated particles with the reaction product of the hardenable acid curable resin, hydrolysable dimer acid ester and water in the formation, thereby forming a cured resin, wherein the reaction product

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• Vo Loan K
• Ogle James William

Classifications

• C09K8/805

  Coated proppants · CPC title

• C09K8/5751 Primary

  Macromolecular compounds (C09K8/5756 takes precedence) · CPC title

• E21B43/025

  Consolidation of loose sand or the like round the wells without excessively decreasing the permeability thereof · CPC title

• C09K8/575 Primary

  containing organic compounds · CPC title