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:
May. 30, 2017
Filed:
Dec. 16, 2014
Applicant:
Cenovus Energy Inc., Calgary, CA;
Inventor:
Arun Sood, Calgary, CA;
Assignee:
Cenovus Energy Inc., Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/24 (2006.01); E21B 43/30 (2006.01);
U.S. Cl.
CPC ...
E21B 43/2406 (2013.01); E21B 43/24 (2013.01); E21B 43/305 (2013.01);
Abstract
The present disclosure describes a recovery process using injector and producer wells, each well having means for varying the axial resistance to fluid flow to provide a complementary first and second annular axial fluid flow resistance profile. The recovery mechanism includes a gravity drainage component and also includes a convective flow mechanism which operate concurrently.