Cement Slurries With Salt-Tolerant Fluid Loss Additives And Methods Relating Thereto

• US 20170183558A1
• Filed: 08/28/2014
• Published: 06/29/2017
• Est. Priority Date: 08/28/2014
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Funkhouser, Gary P., Lewis, Samuel J.
• Granted Patent: US 10,975,286 B2
• Time in Patent Office: Days
• CPC Class Codes: C04B 14/043 Alkaline-earth metal silicates, e.g. wollastonite
• CPC Class Codes: C04B 14/047 Zeolites
• CPC Class Codes: C04B 14/08 Diatomaceous earth
• CPC Class Codes: C04B 14/10 Clay sepiolite C04B14/042; grog C04B18/025
• CPC Class Codes: C04B 14/106 Kaolin
• CPC Class Codes: C04B 14/14 Minerals of vulcanic origin granite C04B14/048
• CPC Class Codes: C04B 14/16 porous, e.g. pumice
• CPC Class Codes: C04B 18/08 Flue dust , i.e. fly ash
• CPC Class Codes: C04B 18/101 Burned rice husks or other burned vegetable material
• CPC Class Codes: C04B 18/141 Slags
• CPC Class Codes: C04B 18/146 Silica fume
• CPC Class Codes: C04B 2103/0088 Compounds chosen for their latent hydraulic characteristics, e.g. pozzuolanes
• CPC Class Codes: C04B 22/08 Acids or salts thereof C04B22/0013 takes precedence
• CPC Class Codes: C04B 24/163 obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: C04B 24/2652 Nitrogen containing polymers, e.g. polyacrylamides, polyacrylonitriles
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C09K 8/467 containing additives for specific purposes
• CPC Class Codes: C09K 8/487 Fluid loss control additives; Additives for reducing or preventing circulation loss
• CPC Class Codes: E21B 33/13 Methods or devices for cementing, for plugging holes, crevices or the like
• CPC Class Codes: Y02W 30/91 Use of waste materials as fillers for mortars or concrete

Abstract

A cement slurry suitable for use in the presence of high salt concentrations may include a base fluid and dry components that include: a cementitious material, a pozzolanic material, a salt additive, and a salt-tolerant fluid loss additive. The salt-tolerant fluid loss additive may be at least one of the following zwitterionic polymers: (1) a copolymer of at least one anionic monomer and at least one cationic monomer, (2) a copolymer of at least one anionic monomer, at least one cationic monomer, and at least one zwitterionic monomer, (3) a homopolymer of a zwitterionic monomer, or (4) a copolymer of at least one zwitterionic monomer.

Claims

1. A method comprising:

introducing a cement slurry into a wellbore penetrating a subterranean formation, the cement slurry comprising;

a base fluid and dry components that comprise a cementitious material, a pozzolanic material, a salt additive, and a salt-tolerant fluid loss additive, wherein the salt-tolerant fluid loss additive comprises at least one zwitterionic polymer selected from the group consisting of;

(1) a copolymer of at least one anionic monomer and at least one cationic monomer, (2) a copolymer of at least one anionic monomer, at least one cationic monomer, and at least one zwitterionic monomer, (3) a homopolymer of a zwitterionic monomer, or (4) a copolymer of at least one zwitterionic monomer,

wherein the at least one cationic monomer is selected from the group consisting of;

[2-(methacryloyloxy)ethyl]trimethylammonium chloride, [3-(methacryloylamino)propyl]trimethylammonium chloride, [2-(acryloyloxy)ethyl]trimethylammonium chloride, [3-(acryloylamino)propyl]trimethylammonium chloride, [2-(methacryloyloxy)ethyl]dimethylamine hydrochloride, [3-(methacryloylamino)propyl]dimethylamine hydrochloride, [2-(acryloyloxy)ethyl]dimethylamine hydrochloride, [3-(acryloylamino)propyl]dimethylamine hydrochloride, a bromide salt thereof, a sulfate salt thereof, a methyl sulfate salt thereof, an ethyl sulfate salt thereof, and a nitrate salt thereof,

wherein the at least one anionic monomer is selected from the group consisting of;

sodium 2-acrylamido-2-methylpropanesulfonate, 4-vinylbenzenesulfonic acid, sodium 4-vinylbenzenesulfonate, vinylsulfonic acid, sodium vinylsulfonate, allylsulfonic acid, sodium allylsulfonate, 3-sulfopropyl acrylate potassium salt, 3-sulfopropyl methacrylate potassium salt, N-sulfomethylacrylamide sodium salt, sodium 1-allyloxy-2-hydroxypropanesulphonate, a potassium salt thereof, a magnesium salt thereof, a calcium salt thereof, and an ammonium salt thereof, and

wherein the zwitterionic monomer is selected from the group consisting of;

[3-(methacryloylamino)propyl]dimethyl(3-sulfopropyl)ammonium hydroxide inner salt, [2-(methacryloyloxy)ethyl]dimethyl(3-sulfopropyl)ammonium hydroxide inner salt, and 2-(methacryloyloxy)ethyl 2-(trimethylammonio)ethyl phosphate; and

setting the cement slurry in a portion of the wellbore, a portion of the subterranean formation, or both.

2. The method of claim 1, wherein the at least one zwitterionic polymer is charge balanced.

3. The method of claim 1, wherein the salt-tolerant fluid loss additive is present in an amount of about 0.001% to about 2% by weight of the dry components.

4. The method of claim 1, wherein the subterranean formation comprises sodium salts, potassium salts, magnesium salts, calcium salts, or any combination thereof.

5. The method of claim 1, wherein the cementitious material is a hydraulic cement.

6. The method of claim 1, wherein the cementitious material is present in an amount of about 5% to about 60% by weight of the dry components.

7. The method of claim 1, wherein the pozzolanic material is selected from the group consisting of silica fume, metakaolin, fly ash, diatomaceous earth, calcined diatomite, uncalcined diatomite, calcined fullers earth, pozzolanic clay, calcined volcanic ash, uncalcined volcanic ash, bagasse ash, pumice, pumicite, rice hull ash, natural zeolite, synthetic zeolite, slag, vitreous calcium aluminosilicate, and any combination thereof.

8. The method of claim 1, wherein the pozzolanic material is present in an amount of about 0.001% to about 60% by weight of the dry components.

9. The method of claim 1, wherein the salt additive is present in an amount of about 15% to about 40% by weight of the base fluid.

10. The method of claim 1, wherein the cement slurry has a yield point in the range of about 5 to about 200 lb/100ft² and a plastic viscosity in the range of about 120 to about 500 cP.

11. A cement slurry comprising:

a base fluid and dry components that comprises;

a cementitious material, a pozzolanic material, a salt additive, and a salt-tolerant fluid loss,

wherein the salt-tolerant fluid loss additive comprises at least one zwitterionic polymer selected from the group consisting of;

(1) a copolymer of at least one anionic monomer and at least one cationic monomer, (2) a copolymer of at least one anionic monomer, at least one cationic monomer, and at least one zwitterionic monomer, (3) a homopolymer of a zwitterionic monomer, or (4) a copolymer of at least one zwitterionic monomer,

wherein the at least one cationic monomer is selected from the group consisting of;

[2-(methacryloyloxy)ethyl]trimethylammonium chloride, [3-(methacryloylamino)propyl]trimethylammonium chloride, [2-(acryloyloxy)ethyl]trimethylammonium chloride, [3-(acryloylamino)propyl]trimethylammonium chloride, [2-(methacryloyloxy)ethyl]dimethylamine hydrochloride, [3-(methacryloylamino)propyl]dimethylamine hydrochloride, [2-(acryloyloxy)ethyl]dimethylamine hydrochloride, [3-(acryloylamino)propyl]dimethylamine hydrochloride, a bromide salt thereof, a sulfate salt thereof, a methyl sulfate salt thereof, an ethyl sulfate salt thereof, and a nitrate salt thereof,

wherein the at least one anionic monomer is selected from the group consisting of;

sodium 2-acrylamido-2-methylpropanesulfonate, 4-vinylbenzenesulfonic acid, sodium 4-vinylbenzenesulfonate, vinylsulfonic acid, sodium vinylsulfonate, allylsulfonic acid, sodium allylsulfonate, 3-sulfopropyl acrylate potassium salt, 3-sulfopropyl methacrylate potassium salt, N-sulfomethylacrylamide sodium salt, sodium 1-allyloxy-2-hydroxypropanesulphonate, a potassium salt thereof, a magnesium salt thereof, a calcium salt thereof, and an ammonium salt thereof, and

wherein the zwitterionic monomer is selected from the group consisting of;

[3-(methacryloylamino)propyl]dimethyl(3-sulfopropyl)ammonium hydroxide inner salt, [2-(methacryloyloxy)ethyl]dimethyl(3-sulfopropyl)ammonium hydroxide inner salt, and 2-(methacryloyloxy)ethyl 2-(trimethylammonio)ethyl phosphate.

12. The cement slurry of claim 11, wherein the salt-tolerant fluid loss additive is present in an amount of about 0.001% to about 2% by weight of the dry components.

13. The cement slurry of claim 11, wherein the cementitious material is a hydraulic cement.

14. The cement slurry of claim 11, wherein the pozzolanic material is selected from the group consisting of silica fume;

metakaolin;

fly ash;

diatomaceous earth;

calcined diatomite;

uncalcined diatomite;

calcined fullers earth;

pozzolanic clay;

calcined volcanic ash;

uncalcined volcanic ash;

bagasse ash;

pumice;

pumicite;

rice hull ash;

natural zeolite;

synthetic zeolite;

slag;

vitreous calcium aluminosilicate; and

any combination thereof.

15. The cement slurry of claim 11, wherein the cementitious material is present in an amount of about 5% to about 60% by weight of the dry components.

16. The cement slurry of claim 11, wherein the pozzolanic material is present in an amount of about 0.001% to about 60% by weight of the dry components.

17. The cement slurry of claim 11, wherein the salt additive is present in an amount of about 15% to about 40% by weight of the base fluid.

18. The cement slurry of claim 11, wherein the cement slurry has a yield point in the range of about 5 to about 200 lb/100ft² and a plastic viscosity in the range of about 120 to about 500 cP.

19. A system comprising:

a wellhead with a tubular extending therefrom and into a wellbore in a subterranean formation where an annulus is defined between the tubular and the wellbore; and

a pump fluidly coupled to the tubular, wherein the tubular, the annulus, or both contain a cement slurry comprising;

a base fluid, a cementitious material, a pozzolanic material, a salt additive, and a salt-tolerant fluid loss additive, wherein the salt-tolerant fluid loss additive comprises at least one zwitterionic polymer selected from the group consisting of;

(1) a copolymer of at least one anionic monomer and at least one cationic monomer, (2) a copolymer of at least one anionic monomer, at least one cationic monomer, and at least one zwitterionic monomer, (3) a homopolymer of a zwitterionic monomer, or (4) a copolymer of at least one zwitterionic monomer,

wherein the at least one cationic monomer is selected from the group consisting of;

[2-(methacryloyloxy)ethyl]trimethylammonium chloride, [3-(methacryloylamino)propyl]trimethylammonium chloride, [2-(acryloyloxy)ethyl]trimethylammonium chloride, [3-(acryloylamino)propyl]trimethylammonium chloride, [2-(methacryloyloxy)ethyl]dimethylamine hydrochloride, [3-(methacryloylamino)propyl]dimethylamine hydrochloride, [2-(acryloyloxy)ethyl]dimethylamine hydrochloride, [3-(acryloylamino)propyl]dimethylamine hydrochloride, a bromide salt thereof, a sulfate salt thereof, a methyl sulfate salt thereof, an ethyl sulfate salt thereof, and a nitrate salt thereof,

wherein the at least one anionic monomer is selected from the group consisting of;

sodium 2-acrylamido-2-methylpropanesulfonate, 4-vinylbenzenesulfonic acid, sodium 4-vinylbenzenesulfonate, vinylsulfonic acid, sodium vinylsulfonate, allylsulfonic acid, sodium allylsulfonate, 3-sulfopropyl acrylate potassium salt, 3-sulfopropyl methacrylate potassium salt, N-sulfomethylacrylamide sodium salt, sodium 1-allyloxy-2-hydroxypropanesulphonate, a potassium salt thereof, a magnesium salt thereof, a calcium salt thereof, and an ammonium salt thereof, and

wherein the zwitterionic monomer is selected from the group consisting of;

[3-(methacryloylamino)propyl]dimethyl(3-sulfopropyl)ammonium hydroxide inner salt, [2-(methacryloyloxy)ethyl]dimethyl(3-sulfopropyl)ammonium hydroxide inner salt, and 2-(methacryloyloxy)ethyl 2-(trimethylammonio)ethyl phosphate.