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:
Jun. 14, 1977
Filed:
Mar. 29, 1976
Applicant:
Inventors:
Charles L Coffman, Wichita, KS (US);
Glen F Kellerhals, Tulsa, OK (US);
Jack Newcombe, Freehold, NJ (US);
Shirley H Roth, Highland Park, NJ (US);
Assignee:
Cities Service Company, Tulsa, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208188 ; 166267 ;
Abstract
An emulsion of crude oil and water that is recovered from an underground reservoir is broken by the addition of a naturally occurring brine to effect separation and recovery of the oil phase of the emulsion. Advantageously, brine taken from the same geologic formation as the crude oil can be used as the emulsion breaker.