Claims
- 1. An additive that foams and stabilizes a cement slurry comprising hydrolyzed keratin.
- 2. The additive of claim 1 wherein said hydrolyzed keratin is a powder comprising about 85% protein.
- 3. The additive of claim 2 wherein said powder comprises a non-protein portion comprising an insoluble material and a soluble material.
- 4. The additive of claim 3 wherein said soluble material comprises calcium sulfate, magnesium sulfate and potassium sulfate.
- 5. The additive of claim 1 wherein said hydrolyzed keratin is manufactured by the base hydrolysis of hoof and horn meal.
- 6. The additive of claim 1 further comprising water present in an amount sufficient to dissolve said hydrolyzed keratin.
- 7. The additive of claim 6 wherein said water is present in an amount such that the resulting solution contains hydrolyzed keratin in an amount of about 50% by weight of the solution.
- 8. The additive of claim 1 further comprising one or more freezing and pour point depressants therein.
- 9. The additive of claim 8 wherein said depressants are selected from the group consisting of propylene glycol, sodium chloride and mixtures thereof.
- 10. The additive of claim 8 wherein said depressants are present in an amount in the range of from about 1% to about 5% by weight of the solution.
- 11. The additive of claim 1 further comprising a gas to foam the cement slurry.
- 12. The additive of claim 11 wherein said gas is selected from the group consisting of air and nitrogen.
- 13. The additive of claim 11 wherein said gas is present in an amount in the range of from about 10% to about 40% by volume of the cement slurry.
- 14. An additive that foams and stabilizes a cement slurry containing fresh water or salt water comprising hydrolyzed keratin.
- 15. The additive of claim 14 wherein said hydrolyzed keratin is a powder comprising about 85% protein.
- 16. The additive of claim 15 wherein said powder comprises a non-protein portion comprising an insoluble material and a soluble material.
- 17. The additive of claim 16 wherein said soluble material comprises calcium sulfate, magnesium sulfate and potassium sulfate.
- 18. The additive of claim 14 wherein said hydrolyzed keratin is manufactured by the base hydrolysis of hoof and horn meal.
- 19. The additive of claim 14 further comprising water present in an amount sufficient to dissolve said hydrolyzed keratin.
- 20. The additive of claim 19 wherein said water is present in an amount such that the resulting solution contains hydrolyzed keratin in an amount of about 50% by weight of the solution.
- 21. The additive of claim 14 further comprising one or more freezing and pour point depressants therein.
- 22. The additive of claim 21 wherein said depressants are selected from the group consisting of propylene glycol, sodium chloride and mixtures thereof.
- 23. The additive of claim 21 wherein said depressants are present in an amount in the range of from about 1% to about 5% by weight of the solution.
- 24. The additive of claim 14 further comprising a gas to foam the cement slurry.
- 25. The additive of claim 24 wherein said gas is selected from the group consisting of air and nitrogen.
- 26. The additive of claim 24 wherein said gas is present in an amount in the range of from about 10% to about 40% by volume of the cement slurry.
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a divisional of application Ser. No. 10/026,040 filed Dec. 20, 2001, now pending, which is a divisional of application Ser. No. 09/696,902 filed Oct. 25, 2000, now Pat. No. 6,367,550 B1.
Divisions (2)
|
Number |
Date |
Country |
Parent |
10026040 |
Dec 2001 |
US |
Child |
10217669 |
Aug 2002 |
US |
Parent |
09696902 |
Oct 2000 |
US |
Child |
10026040 |
Dec 2001 |
US |