Well cementing with water-based liquid anti-shrinkage additives

Patent metadata

Field	Value
Publication number	US-10982127-B2
Application number	US-201616325518-A
Country	US
Kind code	B2
Filing date	Sep 12, 2016
Priority date	Sep 12, 2016
Publication date	Apr 20, 2021
Grant date	Apr 20, 2021

Abstract

A method including introducing a well cementing composition into a wellbore, the cementing composition including a pumpable slurry of cement comprising a liquid anti-shrinkage additive including: an aqueous base fluid; a calcined magnesium oxide; and an anti-hydration agent; and allowing at least a portion of the cementing composition to harden. A liquid anti-shrinkage additive for cement including an aqueous base fluid, a calcined magnesium oxide, and an anti-hydration agent.

First claim

What is claimed is:

1. A method comprising:
providing a liquid anti-shrinkage additive comprising:
an aqueous base fluid;
a calcined magnesium oxide;
an anti-hydration agent; and
a viscosifying additive; and

preparing a cement slurry by combining a cement, water, and the liquid anti-shrinkage additive;
introducing the cement slurry into a subterranean formation; and
allowing at least a portion of cement slurry to harden.

2. The method of claim 1 , with the proviso that the liquid anti-shrinkage additive does not contain non-calcined magnesium oxide.

3. The method of claim 1 , wherein the calcined magnesium oxide is at least one selected from dead-burned magnesium oxide, light-burned magnesium, and combinations thereof.

4. The method of claim 1 , wherein the anti-hydration agent comprises at least one of a lignin sulfonate, a sulfonated naphthalene condensate, a sulfonated acetone formaldehyde condensate (SAFC), a polyphosphate, an aminophosphonate, aminophosphonic acids, and combinations thereof.

5. The method of claim 4 , wherein the anti-hydration agent is at least one selected from sodium hexametaphosphate (SHMP), aminotris(methylenephosphonic acid) (ATMP), and combinations thereof.

6. The method of claim 1 , wherein the viscosifying additive comprises at least one of a polysaccharide biopolymer, a cellulosic polymer, a synthetic acrylic polymer and a combination thereof.

7. The method of claim 6 , wherein the polysaccharide biopolymer is at least one selected from xanthan, welan, diutan gums, and combinations thereof, wherein the cellulosic polymer is hydroxyethyl cellulose (HEC) and wherein the synthetic acrylic polymer is at least one of poly(acrylic acid) (PAA), poly(acrylamide) (PAM), copolymers thereof (PAA-PAM), and combinations thereof.

8. A cementing system comprising:
a liquid anti-shrinkage additive comprising:
an aqueous base fluid;
a calcined magnesium oxide; and
an anti-hydration agent; and

an apparatus including a mixer and a pump to place a cement composition in a wellbore, said cement composition comprising:
a pumpable slurry of cement comprising the liquid anti-shrinkage additive, water, and a cement.

9. The system of claim 8 , wherein the calcined magnesium oxide is at least one selected from dead-burned magnesium oxide, light-burned magnesium, and combinations thereof.

10. The system of claim 8 , wherein the liquid anti-shrinkage additive is free of non-calcined magnesium oxide.

11. The system of claim 8 , wherein the anti-hydration agent comprises at least one of a lignin sulfonate, a sulfonated naphthalene condensate, a sulfonated acetone formaldehyde condensate (SAFC), a polyphosphate, an aminophosphonate, aminophosphonic acids, and combinations thereof.

12. The system of claim 11 , wherein the anti-hydration agent is at least one selected from sodium hexametaphosphate (SHMP), aminotris(methylenephosphonic acid) (ATMP), and combinations thereof.

13. The system of claim 8 , wherein the liquid anti-shrinkage additive further comprises a viscosifying additive, the viscosifying additive comprising at least one of a polysaccharide biopolymer, a cellulosic polymer, a synthetic acrylic polymer, and combinations thereof.

14. The system of claim 13 , wherein the polysaccharide biopolymer is at least one selected from xanthan, welan, diutan gums, and combinations thereof, wherein the cellulosic polymer is hydroxethyl cellulose (HEC) and wherein the synthetic acrylic polymer is at least one of poly(acrylic acid) PAA), poly(acrylamide) (PAM), copolymers thereof (PAA-PAM), and combinations thereof.

15. A method of wellbore cementing comprising:
providing a liquid anti-shrinkage additive comprising:
an aqueous base fluid;
a calcined magnesium oxide; and
an anti-hydration agent;

preparing a cement composition by combining the liquid anti-shrinkage additive with a cement and water; and
introducing the cement composition into a subterranean formation.

16. The method of claim 15 , wherein the calcined magnesium oxide is at least one selected from dead-burned magnesium oxide, light-burned magnesium, and combinations thereof.

17. The method of claim 15 , wherein the anti-hydration agent is at least one selected from sodium hexametaphosphate (SHMP), aminotris(methylenephosphonic acid) (ATMP), and combinations thereof.

18. The method of claim 15 , wherein the liquid anti-shrinkage additive further comprises a viscosifying additive, the viscosifying additive comprising at least one of a polysaccharide biopolymer, a cellulosic polymer, a synthetic acrylic polymer, and combinations thereof, wherein the polysaccharide biopolymer is at least one selected from xanthan, welan, diutan gums, and combinations thereof, wherein the cellulosic polymer is hydroxyethyl cellulose (HEC) and wherein the synthetic acrylic polymer is at least one of poly(acrylic acid) (PAA), poly(acrylamide) (PAM), copolymers thereof (PAA-PAM), and combinations there.

Assignees

• Halliburton Energy Services Inc

Inventors

• Sodhi Thomas Singh
• Agapiou Kyriacos
• Kolasnikov Aleksey
• Lewis Sam J

Classifications

• C04B22/008

  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 title

• C04B28/04

  Portland cements · CPC title

• C04B24/003

  Phosphorus-containing compounds · CPC title

• C04B24/2641

  Polyacrylates; Polymethacrylates · CPC title

• C04B24/166

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds · CPC title