Methods and compositions comprising a dual oil/water-swellable particle

• US 7,934,554 B2
• Filed: 02/03/2009
• Issued: 05/03/2011
• Est. Priority Date: 02/03/2009
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Roddy, Craig W.
• Primary Examiner(s): SUCHFIELD, GEORGE A
• Application Number:
  US12/364,998
• Publication Number:
  US 20100193191A1
• Time in Patent Office: 819 Days
• Field of Search: None
• US Class Current: 166/278
• CPC Class Codes: C09K 8/03 Specific additives for general use in well-drilling compositions
• CPC Class Codes: C09K 8/487 Fluid loss control additives; Additives for reducing or preventing circulation loss
• CPC Class Codes: C09K 8/516 characterised by their form or by the form of their components, e.g. encapsulated material
• CPC Class Codes: C09K 8/92 characterised by their form or by the form of their components, e.g. encapsulated material C09K8/70 takes precedence

Abstract

Methods and compositions are provided that relate to well bore treatments that comprise swellable particles. An embodiment includes a method that comprises introducing a fluid comprising a dual oil/water-swellable particle into a subterranean formation. Another embodiment includes a method of cementing that comprises: introducing a cement composition comprising cement, water, and a dual oil/water-swellable particle into a space between a pipe string and a subterranean formation; and allowing the cement composition to set in the space. Another embodiment includes a well treatment composition comprising a dual oil/water-swellable particle.

Claims

1. A method comprising:

providing a dual oil/water swellable particle having a particle size of about 1 micron to about 1,500 microns, the dual oil/water swellable particle comprising an oil-swellable material and a water-swellable material in a single particle;

adding the dual oil/water swellable particle to a fluid; and

introducing the fluid into a subterranean formation.

2. The method of claim 1 wherein the fluid is selected from the group consisting of cementing fluids, drilling fluids, completion fluids, and stimulation fluids.

3. The method of claim 1 further comprising at least one step selected from the group consisting of:

allowing the dual oil/water-swellable particle to contact oil and/or water in the subterranean formation, whereby the dual oil/water-swellable particle swells to counteract the flow of fluids through the formation;

introducing the fluid into the subterranean formation at or above the formation fracture pressure; and

depositing at least the dual oil/water-swellable particle into the subterranean formation to form a gravel pack.

4. The method of claim 1 wherein the oil-swellable material comprises a material selected from the group consisting of a natural rubber, a polyurethane rubber, a nitrile rubber, a hydrogenated nitrile rubber, an acrylate butadiene rubber, a polyacrylate rubber, a butyl rubber, a brominated butyl rubber, a chlorinated butyl rubber, a chlorinated polyethylene rubber, an isoprene rubber, a chloroprene rubber, a neoprene rubber, a butadiene rubber, a styrene butadiene copolymer rubber, a sulphonated polyethylene, an ethylene acrylate rubber, an epichlorohydrin ethylene oxide copolymer rubber, an ethylene-propylene-copolymer (peroxide cross-linked) rubber, an ethylene-propylene-copolymer (sulphur cross-linked) rubber, an ethylene-propylene-diene terpolymer rubber, an ethylene vinyl acetate copolymer, a fluoro rubber, a fluoro silicone rubber, a silicone rubber, a poly 2,2,1-bicyclo heptene (polynorbornene), an alkylstyrene, a crosslinked substituted vinyl acrylate copolymer, and combinations thereof.

5. The method of claim 1 wherein the water-swellable material comprises a material selected from the group consisting of sodium bentonite, calcium bentonite, polymethacrylate, a starch-polyacrylate acid graft copolymer and salts thereof, a polyethylene oxide polymer, a carboxymethyl cellulose type polymer, poly(acrylic acid) and salts thereof, poly(acrylic-co-acrylamide) and salts thereof, graft-poly(ethylene oxide) of poly(acrylic acid) and salts thereof, poly(2-hydroxyethyl methacrylate), poly(2-hydroxypropyl methacrylate), a polyvinyl alcohol cyclic acid anhydride graft copolymer, isobutylene maleic anhydride, a vinylacetate-acrylate copolymer, a starch-polyacrylonitrile graft copolymer, and combinations thereof.

6. The method of claim 1 wherein the dual oil/water-swellable particle has a particle size in the range of about 5 micron to about 500 microns.

7. The method of claim 1 wherein the oil-swellable material comprises ethylene propylene rubber and the water-swellable material comprises a bentonite.

8. The method of claim 1 wherein the oil-swellable material comprises butyl rubber and the water-swellable material comprises a sodium bentonite.

9. The method of claim 1 wherein the fluid comprises cement, water, and the dual oil/water-swellable particle.

10. The method of claim 9 further comprising allowing the fluid to set in the subterranean formation.

11. The method of claim 10 further comprising allowing the dual oil/water-swellable particle in the set fluid to contact oil and/or water whereby the dual oil/water-swellable particle swells to counteract a crack in the set fluid and/or a debonding of the set fluid from either a pipe string or the subterranean formation.

12. The method of claim 9 wherein the cement comprises at least one hydraulic cement selected from the group consisting of a Portland cement, a pozzolana cement, a gypsum cement, a high-alumina content cement, a slag cement, a silica cement, and combinations thereof.

13. The method of claim 9 wherein the dual/water-swellable particle is present in the fluid in an amount up to about 50% by weight of the cement.

14. The method of claim 1 wherein the water-swellable material comprises a calcium bentonite.

15. The method of claim 1 wherein the oil-swellable material comprises a neoprene rubber.

16. The method of claim 1 wherein the wherein the oil-swellable material is present in the swellable particle in an amount of about 1% to about 99% by weight of the swellable particle, and wherein the water-swellable material is present in the swellable particle in an amount of about 1% to about 99% by weight of the swellable particle;

17. A method of cementing comprising:

providing a dual oil/water swellable particle having a particle size of about 1 micron to about 1,500 microns the dual oil/water swellable article comprising an oil-swellable material and a water-swellable material in a single particle, wherein the oil-swellable material is present in an amount of about 1% to about 99% by weight of the swellable particle, and wherein the water-swellable material is present in an amount of about 1% to about 99% by weight of the swellable particle;

preparing a cement composition comprising cement, water, and the dual oil/water swellable particle in an amount up to about 50% by weight of the cement;

introducing the cement composition into a space between a pipe string and a subterranean formation; and

allowing the cement composition to set in the space.

18. The method of claim 17 wherein the oil-swellable material comprises a material selected from the group consisting of a natural rubber, a polyurethane rubber, a nitrile rubber, a hydrogenated nitrile rubber, an acrylate butadiene rubber, a polyacrylate rubber, a butyl rubber, a brominated butyl rubber, a chlorinated butyl rubber, a chlorinated polyethylene rubber, an isoprene rubber, a chloroprene rubber, a neoprene rubber, a butadiene rubber, a styrene butadiene copolymer rubber, a sulphonated polyethylene, an ethylene acrylate rubber, an epichlorohydrin ethylene oxide copolymer rubber, an ethylene-propylene-copolymer (peroxide cross-linked) rubber, an ethylene-propylene-copolymer (sulphur cross-linked) rubber, an ethylene-propylene-diene terpolymer rubber, an ethylene vinyl acetate copolymer, a fluoro rubber, a fluoro silicone rubber, a silicone rubber, a poly 2,2,1-bicyclo heptene (polynorbornene), an alkylstyrene, a crosslinked substituted vinyl acrylate copolymer, and combinations thereof.

19. The method of claim 17 wherein the water-swellable material comprises a material selected from the group consisting of sodium bentonite, calcium bentonite, polymethacrylate, a starch-polyacrylate acid graft copolymer and salts thereof, a polyethylene oxide polymer, a carboxymethyl cellulose type polymer, poly(acrylic acid) and salts thereof, poly(acrylic-co-acrylamide) and salts thereof, graft-poly(ethylene oxide) of poly(acrylic acid) and salts thereof, poly(2-hydroxyethyl methacrylate), poly(2-hydroxypropyl methacrylate), a polyvinyl alcohol cyclic acid anhydride graft copolymer, isobutylene maleic anhydride, a vinylacetate-acrylate copolymer, a starch-polyacrylonitrile graft copolymer, and combinations thereof.

20. The method of claim 17 wherein the dual oil/water-swellable particle has a particle size in the range of about 5 micron to about 500 microns.

21. The method of claim 17 wherein the oil-swellable material comprises ethylene propylene rubber and the water-swellable material comprises a bentonite.

22. The method of claim 17 wherein the oil-swellable material comprises butyl rubber and the water-swellable material comprises a sodium bentonite.

23. The method of claim 17 wherein the cement comprises at least one hydraulic cement selected from the group consisting of a Portland cement, a pozzolana cement, a gypsum cement, a high-alumina content cement, a slag cement, a silica cement, and combinations thereof

24. The method of claim 17 wherein the dual oil/water-swellable particle is present in the cement composition in an amount of about 1% to about 30% by weight of the cement.

25. The method of claim 17 further comprising allowing the dual oil/water-swellable particle in the set cement composition to contact oil and/or water whereby the dual oil/water-swellable particle swells to counteract a crack in the set cement composition and/or a debonding of the set cement composition from either the pipe string or the subterranean formation.

26. The method of claim 17 wherein the water-swellable material comprises a calcium bentonite.

27. The method of claim 17 wherein the oil-swellable material comprises a neoprene rubber.

28. A method comprising:

providing a dual oil/water swellable particle having a particle size of about 1 micron to about 1,500 microns the dual oil/water swellable particle comprising an oil-swellable material and a water-swellable material in a single particle, wherein the oil-swellable material is present in an amount of about 1% to about 99% by weight of the swellable particle, and wherein the water-swellable material is present in an amount of about 1% to about 99% by weight of the swellable particle;

preparing a cement composition comprising cement, water, and the dual oil/water swellable particle in an amount up to about 50% by weight of the cement;

introducing the cement composition into a subterranean formation,

wherein the oil-swellable material comprises a material selected from the group consisting of a natural rubber, a polyurethane rubber, a nitrile rubber, a hydrogenated nitrile rubber, an acrylate butadiene rubber, a polyacrylate rubber, a butyl rubber, a brominated butyl rubber, a chlorinated butyl rubber, a chlorinated polyethylene rubber, an isoprene rubber, a chloroprene rubber, a neoprene rubber, a butadiene rubber, a styrene butadiene copolymer rubber, a sulphonated polyethylene, an ethylene acrylate rubber, an epichlorohydrin ethylene oxide copolymer rubber, an ethylene-propylene-copolymer (peroxide cross-linked) rubber, an ethylene-propylene-copolymer (sulphur cross-linked) rubber, an ethylene-propylene-diene terpolymer rubber, an ethylene vinyl acetate copolymer, a fluoro rubber, a fluoro silicone rubber, a silicone rubber, a poly 2,2,1-bicyclo heptene (polynorbornene), an alkylstyrene, a crosslinked substituted vinyl acrylate copolymer, and combinations thereof, and

wherein the water-swellable material comprises a material selected from the group consisting of sodium bentonite, calcium bentonite, polymethacrylate, a starch-polyacrylate acid graft copolymer and salts thereof, a polyethylene oxide polymer, a carboxymethyl cellulose type polymer, poly(acrylic acid) and salts thereof, poly(acrylic-co-acrylamide) and salts thereof, graft-poly(ethylene oxide) of poly(acrylic acid) and salts thereof, poly(2-hydroxyethyl methacrylate), poly(2-hydroxypropyl methacrylate), a polyvinyl alcohol cyclic acid anhydride graft copolymer, isobutylene maleic anhydride, a vinylacetate-acrylate copolymer, a starch-polyacrylonitrile graft copolymer, and combinations thereof.

29. The method of claim 28 wherein the dual oil/water-swellable particle has a particle size in the range of about 5 micron to about 500 microns.

30. The method of claim 28 wherein the dual oil/water-swellable particle is present in a cement composition in an amount of about 1% to about 30% by weight of the cement.