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. 10, 2014
Filed:
Dec. 07, 2011
Applicant:
Gokhan Coskuner, Calgary, CA;
Inventor:
Gokhan Coskuner, Calgary, CA;
Assignee:
Husky Oil Operations Limited, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A post cold heavy oil production with sand ('CHOPS') microbial enhanced oil recovery method comprises selecting a well having at least one wormhole and that has completed primary CHOPS production. When the reservoir does not contain enough of a gas producing indigenous microbe, an injectant is prepared comprising a gas-producing microbe, a nutrient suitable for the microbe, and a fluid base. The injectant is injected through the well and into the at least one wormhole in the reservoir; the well is shut in until pressure in the well reaches the target pressure; and then the well is produced.