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:
Aug. 28, 2018
Filed:
Dec. 15, 2016
Applicant:
Husky Oil Operations Limited, Calgary, CA;
Inventor:
Kevin Kar Wan To, Calgary, CA;
Assignee:
Husky Oil Operations Limited, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/24 (2006.01); E21B 36/00 (2006.01); E21B 43/25 (2006.01);
U.S. Cl.
CPC ...
E21B 43/24 (2013.01); E21B 36/006 (2013.01); E21B 43/25 (2013.01);
Abstract
A method for stimulating heavy oil recovery from CHOPS wells at or nearing the end of productive life but not experiencing water-out, wherein produced water is heated to below boiling point and injected back downhole to reduce heavy oil viscosity in the near-wellbore region and surrounding the wormhole network, enabling existing reservoir pressure to drive the reduced-viscosity heavy oil toward the well for production to surface. The injection-soak-production cycle can be repeated as desired so long as adequate reservoir pressure exists.