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:
Mar. 16, 1993
Filed:
Jul. 22, 1991
Applicant:
Inventor:
Adrian D'Souza, Richmond, CA (US);
Assignee:
Chevron Research and Technology Company, San Francisco, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166263 ; 166272 ; 166273 ; 1663051 ; 166309 ; 166 53 ;
Abstract
A method for introducing a surfactant into an oil bearing formation includes plurality of a micro-slug injections of surfactant. Each micro-slug injection comprises an 'on time' in which the surfactant is introduced into the formation and which is based upon the time needed for the surfactant to generate foam in the formation and a 'off time' in which surfactant flow is stopped and is based upon the time period for the generated foam to degrade to a predetermined degree in the formation.
D'Souza, Adrian. (1993). Micro-slug injection of surfactants in an enhanced oil recovery process (U.S. Patent No. 5193617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5193617
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile