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:
Nov. 03, 1987
Filed:
Feb. 21, 1986
Applicant:
Inventor:
Nizar F Djabbarah, Richardson, TX (US);
Assignee:
Cities Service Co., Tulsa, OK (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ; E21B / ;
U.S. Cl.
CPC ...
166252 ; 166272 ; 166273 ; 166274 ; 166294 ; 252-8554 ;
Abstract
A method for sweep improvement during enhanced oil recovery in a subterranean oil-bearing formation concerns the generation of foam by the dispersion of the displacing fluid in an aqueous solution of a mixed surfactant system. The mixed surfactant system comprises a lignosulfonate foaming agent and a surfactant foaming agent.
Quick Actions:
Djabbarah, Nizar. (1987). Sweep improvement in enhanced oil recovery (U.S. Patent No. 4703797). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4703797
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile