SETTABLE COMPOSITIONS AND USES THEREOF

• US 20160264842A1
• Filed: 02/26/2014
• Published: 09/15/2016
• Est. Priority Date: 02/26/2014
• Status: Abandoned Application

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Miller, Matthew Lynn, Whitfill, Donald L.
• Application Number:
  US15/031,145
• Publication Number:
  US 20160264842A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: C04B 14/042 Magnesium silicates, e.g. talc, sepiolite
• CPC Class Codes: C04B 14/043 Alkaline-earth metal silicates, e.g. wollastonite
• CPC Class Codes: C04B 18/08 Flue dust , i.e. fly ash
• CPC Class Codes: C04B 18/146 Silica fume
• CPC Class Codes: C04B 18/24 Vegetable refuse, e.g. rice husks, maize-ear refuse; Cellulosic materials, e.g. paper , cork
• CPC Class Codes: C04B 20/002 Hollow or porous granular materials
• CPC Class Codes: C04B 2103/005 Alkali-swellable polymers
• CPC Class Codes: C04B 2103/0079 Rheology influencing agents
• CPC Class Codes: C04B 2103/10 Accelerators; Activators
• CPC Class Codes: C04B 2103/12 Set accelerators
• CPC Class Codes: C04B 2103/22 Set retarders
• CPC Class Codes: C04B 2103/40 Surface-active agents, dispersants
• CPC Class Codes: C04B 2103/50 Defoamers, air detrainers
• CPC Class Codes: C04B 22/0093 Aluminates
• CPC Class Codes: C04B 22/062 of the alkali or alkaline-earth metals
• CPC Class Codes: C04B 22/10 containing carbon in the anion
• CPC Class Codes: C04B 22/124 Chlorides of ammonium or of the alkali or alkaline earth metals, e.g. calcium chloride
• CPC Class Codes: C04B 22/14 containing sulfur in the anion, e.g. sulfides
• CPC Class Codes: C04B 22/16 containing phosphorus in the anion, e.g. phosphates
• CPC Class Codes: C04B 24/12 Nitrogen containing compounds organic derivatives of hydrazine hydrazine C04B22/00
• CPC Class Codes: C04B 24/2641 : Polyacrylates; Polymethacrylates
• CPC Class Codes: C04B 24/2664 : of ethylenically unsaturated dicarboxylic acid polymers, e.g. maleic anhydride copolymers
• CPC Class Codes: C04B 24/2676 : Polystyrenes
• CPC Class Codes: C04B 24/38 : Polysaccharides or derivatives thereof C04B24/243 takes precedence
• CPC Class Codes: C04B 24/383 : Cellulose or derivatives thereof
• CPC Class Codes: C04B 28/02 : containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C09K 2208/08 : Fiber-containing well treatment fluids
• CPC Class Codes: C09K 2208/18 : Bridging agents, i.e. particles for temporarily filling the pores of a formation; Graded salts
• CPC Class Codes: C09K 8/428 : for squeeze cementing, e.g. for repairing
• CPC Class Codes: C09K 8/44 : containing organic binders only
• CPC Class Codes: C09K 8/467 : containing additives for specific purposes
• CPC Class Codes: C09K 8/50 : 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 Class Codes: C09K 8/508 : macromolecular compounds C09K8/512 takes precedence
• CPC Class Codes: C09K 8/5083 : obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: E21B 33/14 : for cementing casings into boreholes
• CPC Class Codes: Y02W 30/91 : Use of waste materials as fillers for mortars or concrete

Abstract

Various embodiments disclosed related to a composition for treating a subterranean formation, and methods and systems including the same. In various embodiments, the present invention provides a method of treating a subterranean formation that can include obtaining or providing a sealant composition comprising an alkali-swellable latex and a viscosifying agent. The method also includes placing the composition in a subterranean formation downhole.

Claims

1. A method comprising:

obtaining or providing a sealant composition comprising an alkali-swellable latex and a viscosifying agent;

placing the sealant composition in a subterranean formation; and

heating the sealant composition at a temperature and for a time sufficient to solidify the sealant composition.

2. The method of claim 1, wherein the sealant composition does not comprise an added pH-increasing material.

3. The method of claim 1, wherein the heating comprises heating the placed sealant composition at a temperature from about 120°

F. to about 300°

F.

4. The method of claim 1, wherein the time sufficient to solidify the sealant composition is from about 30 minutes to about 20 hours.

5. The method of claim 1, wherein the alkali-swellable latex comprises an ethylenically unsaturated monomer containing at least one carboxylic acid functional group.

6. The method of claim 5, wherein the ethylenically unsaturated monomer containing at least one carboxylic functional group is present in the sealant composition in the amount of from about 5 to about 30% by weight of the monomers used in preparing the alkali-swellable latex.

7. The method of claim 1, wherein the alkali-swellable latex comprises a vinyl aromatic monomer, an ethylene monomer, a butadiene monomer, a vinylnitrile monomer, an olefinically unsaturated ester of C₁-C₈ alcohol monomer, or combinations thereof.

8. The method of claim 1, wherein the alkali-swellable latex comprises hydrophobically-modified carboxylated styrene-butadiene copolymer.

9. The method of claim 1, wherein the alkali-swellable latex comprises from about 0.1 to about 5 wt. % of a crosslinking agent by weight of monomer.

10. The method of claim 1, wherein the viscosifying agent comprises at least one of alginate, chitosan, curdlan, dextran, emulsan, a galactoglucopolysaccharide, gellan, glucuronan, N-acetyl-heparosan, hyaluronic acid, indicant, kefiran, lentinan, levan, mauran, pullulan, scleroglucan, schizophyllan, stewartan, succinoglycan, xanthan gum, xylane, welan, starch, tamarind, tragacanth, guar gum, derivatized guar, gum ghatti, gum arabic, locust bean gum, diutan gum, cellulose, hydroxyethylcellulose, hemicellulose, carboxymethyl cellulose, hydroxyethyl cellulose, carboxymethyl hydroxyethyl cellulose, hydroxypropyl cellulose, methyl hydroxyl ethyl cellulose, guar, hydroxypropyl guar, carboxy methyl guar, and carboxymethyl hydroxylpropyl guar.

11. The method of claim 1, wherein the sealant composition further comprises a pH-increasing material.

12. The method of claim 11, wherein the pH-increasing material comprises at least one of a base-producing material and a cement.

13. The method of claim 12, wherein the cement comprises a Portland cement, a pozzolana cement, a gypsum cement, a phosphate cement, a high alumina content cement, a silica cement, a high alkalinity cement, a magnesia cement, or combinations thereof.

14. The method of claim 12, wherein the pH-increasing material comprises a base-producing material, and wherein the base-producing material comprises alkali and alkali earth metal carbonates, alkali and alkali earth metal bicarbonates, alkali and alkali earth metal hydroxides, alkali and alkali earth metal oxides, alkali and alkali earth metal phosphates, alkali and alkali earth metal hydrogen phosphates, alkali and alkaline earth metal sulphides, alkali and alkaline earth metal salts of silicates, alkali and alkaline earth metal salts of aluminates, water soluble or water dispersible organic amines, polymeric amines, amino alcohols, or combinations thereof.

15. The method of claim 11, wherein the pH-increasing material comprises an encapsulated pH-increasing material.

16. The method of claim 1, wherein the sealant composition further comprises at least one of a fluid absorbing material, a particulate material, and a non-alkali-swellable latex.

17. The method of claim 1, wherein the sealant composition further comprises a fluid absorbing material, and wherein the fluid absorbing material comprises organophilic clay, water swellable clay, a water absorbing mineral, an oil absorbing mineral, or combinations thereof.

18. The method of claim 1, wherein the sealant composition further comprises a particulate material comprising cellulosic fibers.

19. The method of claim 1, wherein the sealant composition further comprises particulate materials in an amount between about 0.01 ppb to about 200 ppb of the sealant composition.

20. The method of claim 1, wherein the sealant composition further comprises at least one of a surfactant, a densifying material, a light weight additive, fly ash, fumed silica, a defoamer, a set retarder, and a set accelerator.

21. The method of claim 1, further comprising introducing a particulate material to the wellbore.

22. The method of claim 1, wherein the method comprises mixing the alkali-swellable latex and the viscosifying agent before the placing in the subterranean formation.

23. The method of claim 1, wherein the method comprises separately placing the alkali-swellable latex and the viscosifying agent in the subterranean formation.

24. The method of claim 1, wherein the sealant composition further comprises an acid.

25. The method of claim 1, wherein the solidified sealant composition has a shear strength of from about 3,000 lb/100 ft² to about 30,000 lb/100 ft².

26. A system for performing the method of claim 1, the system comprising:

a tubular disposed in a wellbore;

a pump configured to pump the sealant composition downhole through the tubular and into the subterranean formation.

27. A system generated by the method of claim 1, the system comprising:

a subterranean formation comprising the sealant composition therein.

28. A system generated by the method of claim 1, the system comprising:

a subterranean formation comprising the solidified sealant composition therein.

29. A method of treating a subterranean formation, the method comprising:

placing a sealant composition comprising an alkali-swellable latex and a viscosifying agent in a subterranean formation; and

heating the sealant composition at a temperature and for a time sufficient to solidify the treatment fluid.

30. A sealant composition for treatment of a subterranean formation, the composition comprising an alkali-swellable latex and a viscosifying agent, wherein the sealant composition solidifies upon sufficient heating.

31. A method for solidifying a sealant composition comprising an alkali-swellable latex and a viscosifying agent, in the absence of an added pH-increasing material, comprising heating the sealant composition at a temperature and for a time sufficient to solidify the sealant composition.