Use of Synthetic Smectite in Set-Delayed Cement Compositions Comprising Pumice

• US 20170130119A1
• Filed: 01/25/2017
• Published: 05/11/2017
• Est. Priority Date: 03/09/2012
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Boul, Peter James, Agapiou, Kyriacos, Pisklak, Thomas Jason, Morgan, Ronnie Glen, Brothers, Lance Everett, Otieno, Pauline Akinyi
• Granted Patent: US 10,087,358 B2
• Time in Patent Office: Days
• CPC Class Codes: C04B 14/106 Kaolin
• CPC Class Codes: C04B 14/16 porous, e.g. pumice
• CPC Class Codes: C04B 14/386 Carbon carbon nanotubes C04B14/026
• 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 22/0013 Boron compounds
• CPC Class Codes: C04B 24/003 Phosphorus-containing compounds
• CPC Class Codes: C04B 24/006 Boron-containing compounds
• CPC Class Codes: C04B 24/163 obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C04B 24/18 Lignin sulfonic acid or derivatives thereof, e.g. sulfite lye
• CPC Class Codes: C04B 24/223 Sulfonated melamine-formaldehyde condensation products
• CPC Class Codes: C04B 24/2641 Polyacrylates; Polymethacrylates
• CPC Class Codes: C04B 24/28 obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds C04B24/243 takes precedence
• CPC Class Codes: C04B 24/383 Cellulose or derivatives thereof
• CPC Class Codes: C04B 28/18 containing mixtures of the silica-lime type
• CPC Class Codes: C04B 40/0658 Retarder inhibited mortars activated by the addition of accelerators or retarder-neutralising agents
• CPC Class Codes: C09K 2208/08 Fiber-containing well treatment fluids
• CPC Class Codes: C09K 8/467 containing additives for specific purposes
• CPC Class Codes: C09K 8/473 : Density reducing additives, e.g. for obtaining foamed cement compositions
• CPC Class Codes: E21B 33/14 : for cementing casings into boreholes

Abstract

Disclosed herein are cement compositions using set-delayed cement compositions in subterranean formations. The composition may comprise a set-delayed cement composition comprising pumice, hydrated lime, a cement set retarder, a synthetic smectite, and water.

Claims

1. A set-delayed cement composition for cementing in a subterranean formation comprising:

pumice,

hydrated lime,

a cement set retarder,

a synthetic smectite, and

water.

2. The composition of claim 1 wherein the pumice has a mean particle size in a range of about 10 micron to about 25 microns.

3. The composition of claim 1 wherein the pumice and the hydrated lime are present in a weight ratio of pumice to hydrated lime of about 10:

1 to about 1;

1.

4. The composition of claim 1 wherein the hydrated lime is provided as calcium oxide.

5. The composition of claim 1 wherein the cement set retarder comprises at least one retarder selected from the group consisting of a phosphonic acid, a phosphonic acid derivative, a lignosulfonate, a salt, an organic acid, a carboxymethylated hydroxyethylated cellulose, a synthetic co- or ter-polymer comprising sulfonate and carboxylic acid groups, a borate compound, and any mixture thereof.

6. The composition of claim 1 wherein the set retarder is present in an amount of about about 0.01% to about 5% by weight of the water.

7. The composition of claim 1 wherein the synthetic smectite has a thickness of less than about 100 nm and lateral dimensions of in a range of about 1 to about 100 nm, the synthetic smectite being present in an amount of about 0.01% to about 5% by weight of the water

8. The composition of claim 1 wherein the water is present in the set-delayed cement composition in an amount in the range of from about 33% to about 200% by weight of the pumice, the set-delayed cement composition having a density in a range of about 8 pounds per gallon to about 14 pounds per gallon.

9. The composition of claim 1 wherein the set-delayed cement composition further comprises a mechanical-property-enhancing additive.

12. The composition of claim 1 wherein the set-delayed cement composition further comprises polyethyleneimine.

13. The composition of claim 1 wherein the set-delayed cement composition further comprises a dispersant and wherein the dispersant comprises at least one dispersant selected from the group consisting of a sulfonated-formaldehyde-based dispersant, a polycarboxylated ether dispersant, and any combination thereof.

14. The composition of claim 1 further comprising a viscosifier wherein the viscosifier is present in an amount of about 0.01% to about 0.5% by weight of the pumice

15. The composition of claim 1 further comprising a cement set activator wherein the cement set activator is selected from the group consisting of zeolites, amines, silicates, zinc formate;

calcium acetate;

Groups IA and IIA hydroxides, monovalent salts, divalent salts, nanosilica, polyphosphates; and

combinations thereof.

16. The composition of claim 1 further comprising an activator comprising a polyphosphate and a monovalent salt.

17. The composition of claim 16 wherein the polyphosphate comprises a polymeric metaphosphate salt.

11. The composition of claim 11 wherein the mechanical-property-enhancing additives are be present in an amount from about 0.01% to about 5% by weight of the pumice.

10. The composition of claim 11 wherein the mechanical-property enhancing additive comprises carbon fibers.

18. A set-delayed cement composition for cementing in a subterranean formation comprising:

pumice,

hydrated lime,

a cement set retarder,

a synthetic smectite,

a mechanical property enhancing additive comprising carbon fibers; and

water;

wherein the set-delayed cement composition is capable of remaining in a pumpable fluid state for a time period of at least about 7 days prior to the activating.

19. The composition of claim 18 wherein the mechanical-property-enhancing additives are be present in an amount from about 0.01% to about 5% by weight of the pumice.

20. The composition of claim 18 wherein the set-delayed cement composition further comprises a dispersant and wherein the dispersant comprises at least one dispersant selected from the group consisting of a sulfonated-formaldehyde-based dispersant, a polycarboxylated ether dispersant, and any combination thereof.