Cement compositions comprising particulate foamed elastomers and associated methods

• US 8,807,216 B2
• Filed: 06/15/2009
• Issued: 08/19/2014
• Est. Priority Date: 06/15/2009
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Karcher, Jeffery D., Iverson, Benjamin J., Gordon, Christopher L., Darbe, Robert P.
• Primary Examiner(s): Bates, Zakiya W
• Assistant Examiner(s): RUNYAN, SILVANA C
• Application Number:
  US12/484,715
• Publication Number:
  US 20100314111A1
• Time in Patent Office: 1,891 Days
• Field of Search: 166/285, 166/292, 166/293
• US Class Current: 166/285
• CPC Class Codes: C04B 16/08 porous, e.g. expanded polystyrene beads or microballoons
• CPC Class Codes: C04B 16/082 other than polystyrene based, e.g. polyurethane foam
• CPC Class Codes: C04B 20/008 Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder colloidal silica C04B14/062 ; silica fume C04B18/146
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C09K 8/467 containing additives for specific purposes
• CPC Class Codes: E21B 33/13 Methods or devices for cementing, for plugging holes, crevices or the like

Abstract

Methods of subterranean cementing involving cement compositions comprising particulate foamed elastomers and associated methods are provided. In one embodiment, the methods comprise introducing a cement composition into a subterranean location, wherein the cement composition comprises a hydraulic cement, a particulate foamed elastomer, and an aqueous fluid; and allowing the cement composition to set in the subterranean location. In one embodiment, the particulate foamed elastomer may comprise polyurethane foam.

Claims

1. A method of cementing, comprising:

introducing a cement composition into a subterranean location, wherein the cement composition comprises;

a hydraulic cement,

a swellable particulate foamed elastomer, wherein the particulate foamed elastomer swells when contacted by gas, hydrocarbons, water, or a combination thereof for providing self-healing properties when the cured cement composition is damaged or cracked, and an aqueous fluid; and

allowing the cement composition to set in the subterranean location.

2. The method of claim 1 wherein the particulate foamed elastomer comprises polyurethane foam.

3. The method of claim 1 wherein the particulate foamed elastomer comprises at least one foamed oil-swellable elastomer selected from the group consisting of ethylene propylene diene M-class rubber, polyamide, polypropylene, polyethylene, styrene butadiene, styrene, divinylbenzene, natural rubber, acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, chloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene copolymer rubber, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene-propylene-diene terpolymer rubber, ethylene vinyl acetate copolymer, fluorosilicone rubbers, silicone rubbers, poly 2,2,1-bicyclo heptene (polynorborneane), alkylstyrene, nitrile rubber, hydrogenated nitrile rubber, fluoro rubbers, perfluoro rubbers, tetrafluorethylene/propylene, any derivative thereof, and any combination thereof.

4. The method of claim 1 wherein the particulate foamed elastomer comprises at least one foamed water-swellable elastomer selected from the group consisting of isobutylene maleic anhydride, starch-polyacrylate acid graft copolymer and salts thereof, polyethylene oxide polymer, carboxymethyl cellulose type polymers, polyacrylamide, poly(acrylic acid) and salts thereof, poly(acrylic acid-co-acrylamide) and salts thereof, graft-poly(ethylene oxide) of poly(acrylic acid) and salts thereof, poly(2-hydroxyethyl methacrylate), and poly(2-hydroxypropyl methacrylate), any derivative thereof, and any combination thereof.

5. The method of claim 1 wherein the particulate foamed elastomer is present in the cement composition in an amount of about 0.5% to about 30% by weight of the hydraulic cement.

6. The method of claim 1 wherein the particulate foamed elastomer is present in the cement composition in an amount of about 2% to about 10% by weight of the hydraulic cement.

7. The method of claim 1 wherein the particulate foamed elastomer comprises particulates with a size of about 40 to about 1000 microns.

8. The method of claim 1 wherein the hydraulic 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, cement kiln dust, and combinations thereof.

9. The method of claim 1 wherein the particulate foamed elastomer has an open cell structure.

10. A method of cementing in a subterranean formation, comprising:

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

a hydraulic cement,

a swellable particulate foamed elastomer, wherein the particulate foamed elastomer swells when contacted by gas, hydrocarbons, water, or a combination thereof for providing self-healing properties when the cured cement composition is damaged or cracked, and

an aqueous fluid; and

allowing the cement composition to set in the space.

11. The method of claim 10 wherein the particulate foamed elastomer comprises polyurethane foam.

12. The method of claim 10 wherein the particulate foamed elastomer comprises at least one foamed oil-swellable elastomer selected from the group consisting of ethylene propylene diene M-class rubber, polyamide, polypropylene, polyethylene, styrene butadiene, styrene, divinylbenzene, natural rubber, acrylate butadiene rubber, polyacrylate rubber, isoprene rubber, chloroprene rubber, butyl rubber, brominated butyl rubber, chlorinated butyl rubber, chlorinated polyethylene, neoprene rubber, styrene butadiene copolymer rubber, sulphonated polyethylene, ethylene acrylate rubber, epichlorohydrin ethylene oxide copolymer, ethylene-propylene rubber, ethylene-propylene-diene terpolymer rubber, ethylene vinyl acetate copolymer, fluorosilicone rubbers, silicone rubbers, poly 2,2,1-bicyclo heptene (polynorborneane), alkylstyrene, nitrile rubber, hydrogenated nitrile rubber, fluoro rubbers, perfluoro rubbers, tetrafluorethylene/propylene, any derivative thereof, and any combination thereof.

13. The method of claim 10 wherein the particulate foamed elastomer comprises at least one foamed water-swellable elastomer selected from the group consisting of isobutylene maleic anhydride, starch-polyacrylate acid graft copolymer and salts thereof, polyethylene oxide polymer, carboxymethyl cellulose type polymers, polyacrylamide, poly(acrylic acid) and salts thereof, poly(acrylic acid-co-acrylamide) and salts thereof, graft-poly(ethylene oxide) of poly(acrylic acid) and salts thereof, poly(2-hydroxyethyl methacrylate), and poly(2-hydroxypropyl methacrylate), any derivative thereof, and any combination thereof.

14. The method of claim 10 wherein the particulate foamed elastomer is present in the cement composition in an amount of about 0.5% to about 30% by weight of the hydraulic cement.

15. The method of claim 10 wherein the particulate foamed elastomer is present in the cement composition in an amount of about 2% to about 10% by weight of the hydraulic cement.

16. The method of claim 10 wherein the particulate foamed elastomer comprises particulates with a size of about 40 to about 1000 microns.

17. The method of claim 10 wherein the particulate foamed elastomer comprises particulates with a size of about 60 to about 600 microns.

18. The method of claim 10 wherein the particulate foamed elastomer has an open cell structure.