The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 10, 2014

Filed:

May. 06, 2011
Applicants:

Duy T. Nguyen, Houston, TX (US);

Fenfen Huang, Sugar Land, TX (US);

Inventors:

Duy T. Nguyen, Houston, TX (US);

Fenfen Huang, Sugar Land, TX (US);

Assignee:

Nalco Company, Naperville, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 41/02 (2006.01); E21B 43/00 (2006.01); E21B 43/25 (2006.01); C09K 8/54 (2006.01); C09K 8/94 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of foaming a fluid for recovering gas from a gas well and enhancing oil production from a gas-lifted oil well penetrating a subterranean oil-bearing formation is disclosed and claimed. The method includes introducing into the fluid a foam-forming amount of a composition comprising at least one compound having the general formula: Ris selected from a saturated linear or branched alkyl, an unsaturated linear or branched alkyl, a substituted naphthalene, a substituted benzene, a natural oil, and a natural oil derivative. Ris a C-Calkyl. R, R, and Rare independently selected from trimethyl, triethyl, diethyl, monoethyl, benzyl dimethyl, and benzyl diethyl. X is selected from hydrogen, methyl, and ethyl. Zis a negatively charged counterion.


Find Patent Forward Citations

Nguyen, Duy. (2014). Quaternary foamers for downhole injection (U.S. Patent No. 8746341). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8746341

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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