Cement compositions comprising latex and a nano-particle

• US 8,598,093 B2
• Filed: 07/09/2010
• Issued: 12/03/2013
• Est. Priority Date: 05/10/2007
• Status: Expired due to Fees

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Roddy, Craig W., Chatterji, Jiten, Cromwell, Roger, Patil, Rahul Chandrakant, Tarafdar, Abhijit, Deshpande, Abhimanyu, Gordon, Christopher L.
• Primary Examiner(s): Bland, Alicia
• Application Number:
  US12/833,189
• Publication Number:
  US 20100273912A1
• Time in Patent Office: 1,243 Days
• Field of Search: 507/219, 166/305.1
• US Class Current: 507/219
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C04B 14/062 Microsilica, e.g. colloïdal silica preparing microsilica slurries or suspensions C04B18/148
• CPC Class Codes: C04B 14/10 Clay sepiolite C04B14/042; grog C04B18/025
• CPC Class Codes: C04B 14/28 of calcium
• CPC Class Codes: C04B 14/30 Oxides other than silica ferrites C04B14/363
• CPC Class Codes: C04B 14/301 porous or hollow
• CPC Class Codes: C04B 14/306 Zirconium oxide zircon C04B14/046
• CPC Class Codes: C04B 14/308 Iron oxide
• CPC Class Codes: C04B 20/002 Hollow or porous granular materials
• 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 2103/12 Set accelerators
• CPC Class Codes: C04B 2103/22 Set retarders
• CPC Class Codes: C04B 2103/408 Dispersants
• CPC Class Codes: C04B 2103/46 Water-loss or fluid-loss reducers, hygroscopic or hydrophilic agents, water retention agents
• CPC Class Codes: C04B 2103/50 Defoamers, air detrainers
• CPC Class Codes: C04B 2111/00008 Obtaining or using nanotechnology related materials
• CPC Class Codes: C04B 2111/10 Compositions or ingredients thereof characterised by the absence or the very low content of a specific material
• CPC Class Codes: C04B 24/2611 Polyalkenes
• CPC Class Codes: C04B 24/2676 Polystyrenes
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C04B 38/02 : by adding chemical blowing agents
• CPC Class Codes: C09K 2208/10 : Nanoparticle-containing well treatment fluids
• CPC Class Codes: C09K 8/426 : for plugging
• CPC Class Codes: C09K 8/428 : for squeeze cementing, e.g. for repairing
• CPC Class Codes: C09K 8/467 : containing additives for specific purposes
• CPC Class Codes: E21B 33/14 : for cementing casings into boreholes
• CPC Class Codes: Y10S 507/906 : Solid inorganic additive in defined physical form
• CPC Class Codes: Y10S 977/963 : Miscellaneous

Abstract

Methods and compositions are provided that may comprise cement, a nano-particle, latex, and water. An embodiment of the present invention includes a method of cementing in a subterranean formation. The method may include introducing a cement composition into the subterranean formation, wherein the cement composition comprises cement, a nano-particle, latex, and water. The method further may include allowing the cement composition to set in the subterranean formation. Another embodiment of the present invention include a cement composition. The cement composition may comprise cement, a nano-particle, latex, and water.

Claims

1. A cement composition comprising:

cement;

nano-silica in an amount of about 0.01% to about 1.5% by weight of the cement, wherein the nano-silica has a particle size range of about 5 nanometers to about 20 nanometers;

an aqueous rubber latex in an amount of about 5% to about 20% by weight of the cement;

a latex stabilizer in an amount of about 10% to about 20% by weight of the latex, wherein the latex stabilizer comprises a material selected from the group consisting of a sulfonate and a sulfate; and

water in an amount of about 35% to about 70% by weight of the cement,

wherein the cement composition has a density of about 8 pounds per gallon to about 17 pounds per gallon, and

wherein the nano-silica is not colloidal and is essentially free of silica fume.

2. The cement composition of claim 1, wherein the cement composition further comprises a nano-particle selected from the group consisting of nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, nano-calcium carbonate, and nano-clay.

3. The cement composition of claim 1, wherein the nano-silica is encapsulated in a water-dissolvable encapsulating material.

4. The cement composition of claim 1, wherein the cement composition when set is characterized by a compressive strength at 24 hours of in the range of about 2,018 psi to about 2,959 psi as measured using an ultrasonic cement analyzer.

5. The cement composition of claim 2, wherein the nano-particle has a particle size in a range of about 1 nanometers to about 100 nanometers.

6. The cement composition of claim 2, wherein the nano-particle has a particle size in a range of about 1 nanometers to about 30 nanometers.

7. The cement composition of claim 2, wherein the nano-particle is present in the cement composition in an amount of about 0.01% to about 10% by weight of the cement.

8. The cement composition of claim 1 wherein the aqueous rubber latex comprises a 2-acrylamido-2-methylpropane-sulfonic acid-styrene-butadiene rubber.

9. The cement composition of claim 1, wherein the aqueous rubber latex comprises a styrene-butadiene rubber having a styrene-butadiene weight ratio of about 25:

75.

10. The cement composition of claim 1, wherein the aqueous rubber latex comprises a styrene-butadiene rubber having a styrene-butadiene weight ratio of about 30:

70.

11. The cement composition of claim 1, wherein the aqueous rubber latex is essentially free of 2-acrylamido-2-methylpropane-sulfonic acid.

12. The cement composition of claim 1 further comprising an additive selected from the group consisting of a latex stabilizer, a strength-retrogression additive, a set accelerator, a set retarder, a weighting agent, a lightweight additive, a gas-generating additive, a mechanical property enhancing additive, a lost-circulation material, a filtration-control additive, a fluid loss control additive, a dispersant, a defoaming agent, a foaming agent, a thixotropic additive, and any combination thereof.

13. The cement composition of claim 1 further comprising an additive selected from the group consisting of crystalline silica, amorphous silica, fumed silica, fiber, a hydratable clay, calcined shale, vitrified shale, a microsphere, fly ash, slag, diatomaceous earth, metakaolin, rice husk ash, natural pozzolan, zeolite, cement kiln dust, lime, and any combination thereof.

14. The cement composition of claim 1 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 any combination thereof.

15. The cement composition of claim 1 wherein the cement comprises a Portland Class H cement.

16. The cement composition of claim 1 wherein the cement is essentially free of calcined serpentine.

17. The cement composition of claim 1 wherein the nano-silica is encapsulated in a bag, capsule, layer, or coating.

18. The cement composition of claim 1 wherein the nano-silica has a particle size of about 6 nm and is present in an amount of about 0.2% to about 0.45% by weight of the cement.

19. The cement composition of claim 1 wherein the aqueous rubber latex is present in an amount of about 9% to about 15% by weight of the cement and comprises styrene-butadiene rubber.