Expansive cement

• US 10,641,058 B2
• Filed: 12/19/2018
• Issued: 05/05/2020
• Est. Priority Date: 09/30/2014
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Agapiou, Kyriacos, Harris, Cody Glenn, Karcher, Jeffery Dwane
• Primary Examiner(s): Green, Anthony J
• Application Number:
  US16/226,075
• Publication Number:
  US 20190120012A1
• Time in Patent Office: 503 Days
• CPC Class Codes: C04B 2103/0008 Li
• CPC Class Codes: C04B 2103/008 Flocking or deflocking agents
• CPC Class Codes: C04B 2103/10 Accelerators; Activators
• CPC Class Codes: C04B 22/008 Cement and like inorganic materials added as expanding or shrinkage compensating ingredients in mortar or concrete compositions, the expansion being the result of a recrystallisation mixtures of cements C04B7/00, C04B28/00
• CPC Class Codes: C04B 22/0093 Aluminates
• CPC Class Codes: C04B 22/062 of the alkali or alkaline-earth metals
• CPC Class Codes: C04B 22/064 of the alkaline-earth metals
• CPC Class Codes: C04B 22/085 containing nitrogen in the anion, e.g. nitrites
• CPC Class Codes: C04B 22/10 containing carbon in the anion
• CPC Class Codes: C04B 22/106 Bicarbonates
• CPC Class Codes: C04B 22/12 containing halogen in the anion
• CPC Class Codes: C04B 22/124 Chlorides of ammonium or of the alkali or alkaline earth metals, e.g. calcium chloride
• CPC Class Codes: C04B 22/142 Sulfates
• CPC Class Codes: C04B 28/04 Portland cements
• CPC Class Codes: C04B 28/14 containing calcium sulfate cements gypsum-paper plates E04C
• CPC Class Codes: C04B 40/0039 Premixtures of ingredients
• CPC Class Codes: C04B 40/0042 Powdery mixtures
• CPC Class Codes: C04B 7/02 Portland cement
• CPC Class Codes: C04B 7/32 Aluminous cements
• CPC Class Codes: C09K 8/467 containing additives for specific purposes
• CPC Class Codes: C09K 8/493 : Additives for reducing or preventing gas migration
• CPC Class Codes: E21B 33/14 : for cementing casings into boreholes

Abstract

An expansive additive composition for use in Portland cements and a method of using such an additive composition is provided. The additive composition can include a calcium aluminate cement additive and a lithium compound. The additive composition is capable of producing expansion in set cements when the temperature is at or below room temperature and minimizes the amount of calcium aluminate cement additive needed.

Claims

1. A composition comprising the following components:

a calcium aluminate cement in an amount from about 5% to about 50% by weight of the composition;

a lithium compound in an amount from about 0.01% to about 5.00% by weight of the composition;

calcium hydroxide present in an amount from about 1% to about 20% by weight of the composition;

sodium bicarbonate present in an amount from about 0.1% to about 5.0% by weight of the composition; and

gypsum present in an amount from about 50% to about 80% by weight of the composition; and

wherein the components of the composition are configured such that when the composition is added to a Portland cement and water to produce a cement composition there results at least a 10% expansion within 1 day after the onset of curing of the cement composition.

2. The composition of claim 1, wherein the components of the composition are configured such that the expansion occurs at temperatures below 100°

F.

3. The composition of claim 1, wherein the components of the composition are configured such that the expansion occurs at temperatures below about 73°

F.

4. The composition of claim 1, wherein the gypsum is present in an amount from 60% to 75% by weight of the composition.

5. The composition of claim 1, wherein said calcium aluminate cement is in an amount from about 10% to about 40% by weight of the composition and wherein said lithium compound is in an amount from about 0.05% to about 1.00% by weight of the composition.

6. The composition of claim 5, wherein said calcium aluminate cement is in an amount from 15% to 35% by weight of the composition and wherein said lithium compound is in an amount from 0.10% to 0.50% by weight of the composition.

7. The composition of claim 1, wherein said lithium compound is a lithium salt selected from the group consisting of lithium carbonate, lithium halides, lithium sulfate, hydrates of lithium sulfate, lithium nitrate, lithium hydroxide, and mixtures thereof.

8. The composition of claim 1, wherein:

said calcium aluminate cement is in an amount from 15% to 35% by weight of the composition; and

said lithium compound is a lithium salt selected from the group consisting of lithium carbonate, lithium halides, lithium sulfate, hydrates of lithium sulfate, lithium nitrate, lithium hydroxide, and mixtures thereof, and said lithium salt is in an amount from 0.10% to 0.50% by weight of the composition.

9. The composition of claim 1, wherein the components of the composition are configured such that at least a 10% expansion will occur under conditions present downhole in a borehole.

10. The composition of claim 9, wherein the components of the composition are configured such that the expansion occurs when the conditions present downhole include temperatures below 100°

F.

11. The composition of claim 10, wherein:

said lithium compound is in an amount from about 0.05% to about 1.00% by weight of the composition and said lithium salt is selected from the group consisting of lithium carbonate, lithium halides, lithium sulfate, hydrates of lithium sulfate, lithium nitrate, lithium hydroxide, and mixtures thereof; and

said calcium aluminate cement is in an amount from about 10% to about 40% by weight of the composition.

12. The composition of claim 11, wherein the gypsum is present in an amount from 60% to 75% by weight of the composition.

13. The composition of claim 12, wherein said calcium aluminate cement is in an amount from 15% to 35% by weight of the composition and wherein said lithium compound is in an amount from 0.10% to 0.50% by weight of the composition.

14. The composition of claim 13, wherein the components of the composition are configured such that the expansion occurs when the conditions present downhole include temperatures below about 73°

F.

15. A composition consisting essentially of the following components:

a calcium aluminate cement in an amount from about 5% to about 50% by weight of the composition;

a lithium compound in an amount from about 0.01% to about 5.00% by weight of the composition;

calcium hydroxide present in an amount from about 1% to about 20% by weight of the composition;

sodium bicarbonate present in an amount from about 0.1% to about 5.0% by weight of the composition; and

gypsum present in an amount from about 50% to about 80% by weight of the composition; and

wherein the components of the composition are configured such that when the composition is added to a Portland cement and water to produce a cement composition there results at least a 10% expansion within 1 day after the onset of curing of the cement composition.

16. The composition of claim 15, wherein the components of the composition are configured such that the expansion occurs at temperatures below 100°

F.

17. The composition of claim 16, wherein the components of the composition are configured such that at least a 10% expansion will occur under conditions present downhole in a borehole.

18. The composition of claim 15, wherein:

said lithium compound is in an amount from about 0.10% to about 1.50% by weight of the composition and said lithium salt is selected from the group consisting of lithium carbonate, lithium halides, lithium sulfate, hydrates of lithium sulfate, lithium nitrate, lithium hydroxide, and mixtures thereof;

said calcium aluminate cement is in an amount from about 15% to about 35% by weight of the composition; and

wherein the gypsum is present in an amount from 60% to 75% by weight of the composition.

19. The composition of claim 18, wherein the components of the composition are configured such that the expansion occurs when the conditions present downhole include temperatures below about 73°

F.