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:
Oct. 10, 1978
Filed:
May. 03, 1977
Applicant:
Inventor:
William C Wernau, Groton, CT (US);
Assignee:
Pfizer Inc., New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; C12B / ; C12D / ;
U.S. Cl.
CPC ...
252 / ; 166246 ; 1663 / ; 195 / ; 195 96 ; 195114 ;
Abstract
A process is disclosed for preparing a Xanthomonas colloid-containing fermentation broth suitable for the preparation of mobility control solution used in oil recovery which comprises aerobically fermenting a Xanthomonas organism in an aqueous nutrient medium whose ingredients comprise a carbohydrate, a nitrogen source, an assimilable Krebs cycle acid, chelated calcium and trace elements, whereby the whole broth produced provides mobility control solutions of about 100 to 3000 ppm of Xanthomonas colloid which are substantially free of insoluble matter having a particle size greater than about 3 microns.