Additives to reduce the crystallization temperature of brines and methods of use

Patent metadata

Field	Value
Publication number	US-11001740-B2
Application number	US-201716468274-A
Country	US
Kind code	B2
Filing date	Jan 10, 2017
Priority date	Jan 10, 2017
Publication date	May 11, 2021
Grant date	May 11, 2021

Abstract

A composition of a treatment fluid having an aqueous base fluid and a true crystallization temperature reduction additive. A method includes providing a treatment fluid having an aqueous base fluid, adding a true crystallization temperature reduction additive and placing the treatment fluid in a subterranean wellbore.

First claim

What is claimed is:

1. An aqueous composition for use in a subterranean well comprising:
an aqueous base fluid having a first true crystallization temperature; and
a true crystallization temperature reduction additive that combined with the aqueous base fluid forms an aqueous composition having a second true crystallization temperature, the reduction additive comprising N-(phosphonomethyl)iminodiacetic acid (PMIDA);
wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 9° F. (5° C.) less than the first true crystallization temperature.

2. The composition of claim 1 , wherein the aqueous base fluid is selected from the group consisting of: a calcium bromide brine, a calcium chloride brine, a manganese (II) bromide brine, and combinations thereof.

3. The composition of claim 1 , wherein the true crystallization temperature reduction additive is PMIDA reacted with aqueous sodium hydroxide and used as a di-sodium acetate salt.

4. The composition of claim 1 , wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 12° F. (6.7° C.) less than the first true crystallization temperature.

5. The composition of claim 1 , wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 15° F. (8.3° C.) less than the first true crystallization temperature.

6. The composition of claim 1 , wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 20° F. (11.1° C.) less than the first true crystallization temperature.

7. The composition of claim 1 , wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 25° F. (13.9° C.) less than the first true crystallization temperature.

8. The composition of claim 2 , wherein the composition has a density of at least 14.8 lb/gal (1.77 kg/L) and the second true crystallization temperature is at least 20° F. (11.1° C.) less than the first true crystallization temperature; and wherein the true crystallization temperature reduction additive is chosen from the group consisting of: tartaric acid, gluconic acid, citric acid, malic acid, and combinations thereof.

9. The composition of claim 1 , wherein the composition is zinc free.

10. The composition of claim 1 , wherein the composition is cesium free.

11. An aqueous composition for use in a subterranean well comprising:
an aqueous base fluid having a first true crystallization temperature; and
a true crystallization temperature reduction additive that combined with the aqueous base fluid forms an aqueous composition having a second true crystallization temperature, the reduction additive comprising N-(Phosphonomethyl)iminodiacetic acid (PMIDA);
wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 9° F. (5° C.) less than the first true crystallization temperature;
wherein the aqueous base fluid is selected from the group consisting of: a calcium bromide brine, a calcium chloride brine, a manganese (II) bromide brine, and combinations thereof.

12. The composition of claim 11 , wherein the composition is zinc free.

13. The composition of claim 11 , wherein the composition is cesium free.

14. A method comprising:
providing an aqueous base fluid having a first true crystallization temperature;
adding a true crystallization temperature reduction additive to the aqueous base fluid to form an aqueous composition having a second true crystallization temperature at least 9° F. (5° C.) less than the first true crystallization temperature, the reduction additive comprising N-(phosphonomethyl)iminodiacetic acid (PMIDA); and
placing the aqueous composition in a subterranean well.

15. The method of claim 14 , further comprising performing a subterranean operation selected from the group comprising: drilling operations, lost circulation management operations, stimulation operations, sand control operations, perforating operations, completion operations, acidizing operations, scale inhibiting operations, water-blocking operations, clay stabilizer operations, fracturing operations, frac-packing operations, gravel packing operations, wellbore strengthening operations, sag control operations, displacing solids laden drilling fluid, and combinations thereof.

16. An aqueous composition for use in a subterranean well comprising:
an aqueous base fluid having a first true crystallization temperature, the aqueous base fluid being selected from the group of: a calcium bromide brine, a calcium chloride brine, a manganese (II) bromide brine, and combinations thereof; and
a true crystallization temperature reduction additive that combined with the aqueous base fluid forms an aqueous composition having a second true crystallization temperature, the reduction additive being formamide or urea;
wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 9° F. (5° C.) less than the first true crystallization temperature.

17. The aqueous composition of claim 16 , wherein the reduction additive is present in a concentration of from 5% to 10% by weight of the aqueous composition.

18. An aqueous composition for use in a subterranean well comprising:
an aqueous base fluid having a first true crystallization temperature, the aqueous base fluid being selected from the group of: a calcium bromide brine, a calcium chloride brine, a manganese (II) bromide brine, and combinations thereof; and
a true crystallization temperature reduction additive that combined with the aqueous base fluid forms an aqueous composition having a second true crystallization temperature, the reduction additive being a hydroxy carboxylic acid and being present at a concentration of at least 10% to 45% by weight of the aqueous composition;
wherein the composition has a density of at least 14.2 lb/gal (1.70 kg/L) and the second true crystallization temperature is at least 9° F. (5° C.) less than the first true crystallization temperature.

19. The composition of claim 18 , wherein the hydroxy carboxylic acid is chosen from the group consisting of: tartaric acid, gluconic acid, citric acid, malic acid, and combinations thereof.

20. The composition of claim 18 , wherein the hydroxy carboxylic acid is tartaric acid.

Assignees

• Halliburton Energy Serv Inc
• Halliburton Energy Services Inc

Inventors

• Ramirez Angulo Jessica Paola
• Davis Chesnee Lae
• Deville Jay Paul

Classifications

• C09K8/845

  containing inorganic compounds · CPC title

• C09K8/506

  containing organic compounds · CPC title

• C09K8/72

  Eroding chemicals, e.g. acids · CPC title

• C09K8/52

  Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning · CPC title

• C09K8/575

  containing organic compounds · CPC title