FOAMERS FOR DOWNHOLE INJECTION

• US 20110071060A1
• Filed: 09/23/2009
• Published: 03/24/2011
• Est. Priority Date: 09/23/2009
• Status: Abandoned Application

• Current Assignee: ChampionX USA Inc. (ChampionX Corporation)
• Original Assignee: ChampionX USA Inc. (ChampionX Corporation)
• Inventors: Nguyen, Duy T.
• Application Number:
  US12/565,425
• Publication Number:
  US 20110071060A1
• Time in Patent Office: Days
• US Class Current: 507/265
• CPC Class Codes: C09K 2208/32 Anticorrosion additives
• CPC Class Codes: C09K 8/38 Gaseous or foamed well-drilling compositions
• CPC Class Codes: C09K 8/518 Foams
• CPC Class Codes: C09K 8/58 Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
• CPC Class Codes: C09K 8/594 Compositions used in combination with injected gas , e.g. CO2 orcarbonated gasC09K8/592 takes precedence
• CPC Class Codes: C09K 8/703 Foams
• CPC Class Codes: C09K 8/94 Foams

Abstract

This invention relates generally to novel foamer compositions for treatment of oil and gas wells to enhance production. The invention provides a method of foaming a fluid. The method includes introducing into the fluid a foam-forming amount of a composition comprising at least one long chain fatty acid and at least one organic solvent. An example of the long chain fatty acid is tall oil fatty acid and an example of the organic solvent is ethyleneglycol monobutyl ether.

Claims

1. A method of foaming a fluid, the method comprising:

introducing into the fluid a foam-forming amount of a composition comprising at least one long chain fatty acid and at least one organic solvent.

2. The method of claim 1, wherein the long chain fatty acid is tall oil fatty acid.

3. The method of claim 1, wherein the organic solvent is selected from the group consisting of:

alcohols, glycols, aliphatic hydrocarbons, aromatic hydrocarbons, and combinations thereof.

4. The method of claim 1, wherein the organic solvent is ethyleneglycol monobutyl ether.

5. The method of claim 1, wherein the organic solvent is present in an amount ranging from about 5 to about 70% by weight actives based on a total weight of the composition.

6. The method of claim 1, wherein the long chain fatty acid is dispersed or dissolved in the organic solvent.

7. The method of claim 1, further comprising introducing into the fluid the foam-forming amount of the foaming composition to the downhole end of a well as batch addition or continuously.

8. The method of claim 1, further comprising introducing to the fluid from about 10 ppm to about 100,000 ppm of actives in the composition to the well, based on volume of the fluid.

9. The method of claim 1, further comprising introducing to the fluid from about 100 ppm to about 20,000 ppm of actives in the foaming composition to the well, based on volume of the fluid.

10. The method of claim 1, farther comprising introducing to the fluid from about 200 ppm to about 10,000 ppm of actives in the foaming composition to the well, based on volume of the fluid.

11. The method of claim 1, wherein the fluid is oil or gas and water.