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:
Jan. 25, 1983
Filed:
May. 14, 1979
Applicant:
Inventor:
James E Tackett, Jr, Littleton, CO (US);
Assignee:
Marathon Oil Company, Findlay, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
210639 ; 208188 ;
Abstract
The water content of a crude oil containing surfactant is reduced to less than 0.5 weight percent by first conventionally drying the crude oil to a water concentration less than about 10%, then contacting the crude oil with a low molecular weight alcohol to effect a phase separation into an aqueous layer and an oil layer, thereafter separating these layers to obtain a dried oil and an aqueous alcoholic surfactant solution. The alcohol can then be separated from the aqueous alcoholic surfactant solution. The recovered alcohol can be recycled through the system and the recovered surfactant can be reused in another micellar flood.