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.
Patent No.:
Date of Patent:
Feb. 05, 1980
Filed:
Feb. 13, 1978
Applicant:
Inventors:
Jack H Park, Houston, TX (US);
Walter D Hunter, Houston, TX (US);
Assignee:
Texaco Development Corporation, White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; C11D / ;
U.S. Cl.
CPC ...
252 / ; 166272 ; 166275 ; 252352 ; 252355 ; 546171 ;
Abstract
A process for recovering hydrocarbons from a subterranean hydrocarbon-bearing formation by injecting into the formation via an injection well an aqueous alkaline flooding medium such as water, steam, etc. containing a small amount of a sulfonated, oxyalkylated interfacial tension reducer, forcing the said flooding medium through the formation and recovering hydrocarbons via a production well.