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:
Mar. 25, 1986

Filed:

Aug. 08, 1984
Applicant:
Inventors:

Zean Z Gassmann, Houston, TX (US);

Jeffrey T Hawkins, Houston, TX (US);

Alfred Brown, Houston, TX (US);

Assignee:

Texaco Inc., White Plains, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166245 ; 166263 ; 166272 ; 166288 ; 166294 ; 166309 ;
Abstract

The disclosed invention is a method of injecting steam foaming agents in conjunction with steam and usually, a non-condensable gas into production wells producing a substantially high water to oil ratio. The most preferred production wells for foaming agent injection are corner production wells of flooding patterns such as inverted 5- and 9-spots, especially when the flooding pattern contains infill wells between the central injection well and the corner production wells. Although the method of injecting foaming agent, steam and usually, a non-condensable gas is effective with any foaming agent, the method works particularly well with foaming agents of the general formula:


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