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.

Date of Patent:
Jul. 07, 2009

Filed:

Jun. 13, 2007
Applicants:

John E. Arthur, Calgary, CA;

Simon D. Gittins, Bragg Creek, CA;

Harbir S. Chhina, Calgary, CA;

Inventors:

John E. Arthur, Calgary, CA;

Simon D. Gittins, Bragg Creek, CA;

Harbir S. Chhina, Calgary, CA;

Assignee:

Encana Corporation, Calgary, Alberta, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for recovering hydrocarbons from a subterranean reservoir by operating a first injector-producer well pair under a substantially gravity-controlled recovery process, the first injector-producer well pair forming a first mobilized zone, operating a second injector-producer well pair under a substantially gravity-controlled recovery process, the second injector-producer well pair forming a second mobilized zone, the first injector-producer well pair and the second injector-producer well pair together being the adjacent well pairs, providing an infill well in a bypassed region, the bypassed region formed between the adjacent well pairs when the first mobilized zone and the second mobilized zone merge to form a common mobilized zone, operating the infill well to establish fluid communication between the infill well and the common mobilized zone, operating the infill well and the adjacent well pairs under a substantially gravity-controlled recovery process, and recovering hydrocarbons from the infill well.


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