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. 13, 1990
Filed:
Jun. 26, 1989
Applicant:
Inventors:
Raymond J Jan, Englewood, CO (US);
Thomas G Reed, Jr, Golden, CO (US);
Assignee:
Mobil Oil Corporation, Fairfax, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; C02F / ;
U.S. Cl.
CPC ...
166266 ; 166272 ; 210665 ; 210677 ; 210687 ; 210712 ; 210737 ; 210747 ;
Abstract
A steam flood recovery process for recovering heavy oil from a producing formation wherein the production stream is processed to separate the produced water from the heavy oil and then the hardness of the water is first reduced to from 10-60 ppm by treatment with caustic and then reduced to less than 1 ppm by flowing it through a weak acid cation resin whereby the water can be used to generate the steam used in the recovery operation.