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:
Aug. 27, 2024

Filed:

Jun. 17, 2021
Applicant:

Acceleware Ltd., Calgary, CA;

Inventors:

Lynn P. Tessier, Calgary, CA;

Shane Matthews, Calgary, CA;

Michal M. Okoniewski, Calgary, CA;

Assignee:

Acceleware Ltd., Calgary, CA;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 36/04 (2006.01); E21B 17/02 (2006.01); E21B 43/24 (2006.01);
U.S. Cl.
CPC ...
E21B 43/2401 (2013.01); E21B 17/023 (2013.01);
Abstract

Methods for providing wellbores for electromagnetic heating of a hydrocarbon formation positioned below a ground surface and apparatus thereof are provided. The apparatus includes two or more wellbore casings positioned within two or more wellbores. The two or more wellbores extend from a proximal end at the ground surface to a distal end at the underground hydrocarbon formation. Each of the two or more wellbore casings have a proximal portion and a distal portion. The two or more wellbores are in proximity to one another at a junction. The apparatus also includes a first electrical connection between the proximal portions of the two or more wellbore casings for grounding the two or more wellbore casings and a second electrical connection between the distal portions of the two or more wellbore casings. The second electrical connection is located at the junction and provides a short circuit that reduces current traveling on the two or more wellbore casings to the ground surface.


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