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:
Apr. 03, 2018
Filed:
May. 28, 2015
Applicant:
Veolia Water Technologies, Inc., Moon Township, PA (US);
Inventors:
Karen Schooley, Seattle, WA (US);
Donald A. Boudreau, Jr., Naperville, IL (US);
Assignee:
Veolia Water Technologies, Inc., Moon Township, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 43/40 (2006.01); E21B 43/24 (2006.01); B01D 1/18 (2006.01); C02F 1/20 (2006.01); C02F 1/40 (2006.01); C02F 1/66 (2006.01); B01D 1/00 (2006.01); B01D 9/00 (2006.01); C02F 9/00 (2006.01); C02F 1/04 (2006.01); C02F 1/52 (2006.01); C02F 101/32 (2006.01);
U.S. Cl.
CPC ...
E21B 43/40 (2013.01); B01D 1/007 (2013.01); B01D 1/18 (2013.01); B01D 9/004 (2013.01); B01D 9/0031 (2013.01); B01D 9/0059 (2013.01); C02F 9/00 (2013.01); E21B 43/24 (2013.01); C02F 1/048 (2013.01); C02F 1/20 (2013.01); C02F 1/40 (2013.01); C02F 1/66 (2013.01); C02F 2001/5218 (2013.01); C02F 2101/32 (2013.01);
Abstract
An oil recovery process is provided where an oil-water mixture is recovered from an oil-bearing formation. Oil is separated from the oil-water mixture to yield produced water. The produced water is typically subjected to a pre-treatment process. After pre-treatment, the produced water is directed to an evaporator that evaporates at least some of the produced water and produces steam and an evaporator blowdown. The evaporator blowdown is directed to a dual stage crystallizer that concentrates the evaporator blowdown.