Set-delayed cement compositions comprising pumice and associated methods

• US 10,221,095 B2
• Filed: 09/05/2014
• Issued: 03/05/2019
• 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: Brothers, Lance Everett, Pisklak, Thomas Jason
• Primary Examiner(s): Ali, Shuangyi Abu
• Application Number:
  US14/478,813
• Publication Number:
  US 20140373756A1
• Time in Patent Office: 1,642 Days
• CPC Class Codes: C04B 14/00 Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone expanding or defibrillating materials C04B20/00
• CPC Class Codes: C04B 14/16 porous, e.g. pumice
• CPC Class Codes: C04B 16/00 Use of organic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of organic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
• 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 22/0013 Boron compounds
• CPC Class Codes: C04B 22/082 Acids
• 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 24/22 Condensation or polymerisation products thereof
• CPC Class Codes: C04B 24/2641 Polyacrylates; Polymethacrylates
• 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 8/46 containing inorganic binders, e.g. Portland cement
• 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

A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing in a subterranean formation, comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; activating the set-delayed cement composition; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation.

Claims

1. A set-delayed cement system comprising:

a set-delayed cement composition comprising;

water;

pumice;

hydrated lime;

a polycarboxylated ether dispersant; and

a set retarder comprising a phosphonic acid derivative, and

a cement set activator;

wherein the polycarboxylated ether dispersant and the phosphonic acid derivate form a gel that suspends the pumice and hydrated lime in the set-delayed cement composition;

wherein the set-delayed cement composition will remain in a pumpable fluid state for a time period of at least about 7 days.

2. The system of claim 1 wherein the pumice has a mean particle size in a range of about 1 micron to about 200 microns.

3. The system 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 system of claim 1 wherein the set retarder further comprises at least one retarder selected from the group consisting of a phosphonic acid, 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.

5. The system of claim 1 wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3:

1 to about 5;

1, wherein the set retarder is present in an amount of about 0.01% to about 2% by weight of the pumice, and wherein the polycarboxylated ether dispersant is present in an amount of about 0.01% to about 2% by weight of the pumice.

6. The system of claim 1 wherein the set-delayed cement composition further comprises at least one additive selected from the group consisting of 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 defoaming agent, a foaming agent, a thixotropic additive, and any combination thereof.

14. The system of claim 1 the cement set activator is selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, sodium sulfate, and combinations thereof.

7. A set-delayed cement system comprising:

a set-delayed cement composition comprising;

water;

pumice;

hydrated lime in an amount of about 10% to about 50% by weight of the pumice;

a polycarboxylated ether dispersant in an amount of about 0.01% to about 5% by weight of the pumice; and

a set retarder comprising a phosphonic acid derivative in an amount of about 0.01% to about 10% by weight of the pumice, and

a cement set activator;

wherein the polycarboxylated ether dispersant and the phosphonic acid derivate form a gel that suspends the pumice and hydrated lime in the set-delayed cement composition;

wherein the set-delayed cement composition will remain in a pumpable fluid state for a time period of at least about 7 days.

8. The system of claim 7 wherein the pumice has a mean particle size in a range of about 1 micron to about 200 microns.

9. The system of claim 7 wherein the pumice and the hydrated lime are present in a weight ratio of pumice to hydrated lime of about 10:

1 to about 2;

1.

10. The system of claim 7 wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3:

1 to about 5;

1, wherein the set retarder is present in an amount of about 0.01% to about 2% by weight of the pumice, and wherein the polycarboxylated ether dispersant is present in an amount of about 0.01% to about 2% by weight of the pumice.

11. The system of claim 7 wherein the set-delayed cement composition further comprises at least one additive selected from the group consisting of 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 defoaming agent, a foaming agent, a thixotropic additive, and any combination thereof.

15. The system of claim 7 the cement set activator is selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, sodium sulfate, and combinations thereof.

12. A set-delayed cement system comprising:

a set delayed cement composition comprising;

water;

pumice;

hydrated lime;

a polycarboxylated ether dispersant, wherein the polycarboxylated ether dispersant is present in an amount of about 0.01% to about 2% by weight of the pumice; and

a phosphonic acid derivative set retarder wherein the phosphonic acid derivative set retarder is present in an amount of about 0.01% to about 2% by weight of the pumice, and

a cement set activator;

wherein the polycarboxylated ether dispersant and the phosphonic acid derivate form a gel that suspends the pumice and hydrated lime in the set-delayed cement composition;

wherein the set-delayed cement composition will remain in a pumpable fluid state for a time period of at least about 7 days,

wherein the set-delayed cement composition has a pumice-to-hydrated-lime weight ratio of about 3;

1 to about 5;

1,

wherein no additional components are present in the set-delayed cement composition that set in the presence of water.

13. The system of claim 12 wherein the pumice has a mean particle size in a range of about 1 micron to about 200 microns.

16. The system of claim 12 the cement set activator is selected from the group consisting of calcium chloride, triethanolamine, sodium silicate, zinc formate, calcium acetate, sodium hydroxide, sodium sulfate, and combinations thereof.