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:
Oct. 07, 2025

Filed:

Dec. 21, 2023
Applicant:

University of Wyoming, Laramie, WY (US);

Inventor:

Michael Urynowicz, Fort Collins, CO (US);

Assignee:

UNIVERSITY OF WYOMING, Laramie, WY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/582 (2006.01); E21B 41/00 (2006.01); E21B 43/295 (2006.01); E21B 47/11 (2012.01); G01V 9/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/582 (2013.01); E21B 41/0064 (2013.01); E21B 43/295 (2013.01); E21B 47/11 (2020.05); G01V 9/007 (2013.01);
Abstract

A method of generating biogas is disclosed, including delivering a feedstock downhole to a coal reservoir, generating biogas within the coal reservoir, and harvesting the biogas. The method comprises delivering a feedstock downhole to a coal reservoir via an injection well, generating biogas within the coal reservoir through microbial action, creating a biogas that is isotopically differentiable from a background gas that is native to the coal reservoir, harvesting the biogas at the injection well and one or more offset wells of the coal reservoir, analyzing the biogas and coal bed methane from the coal reservoir at the injection well and at one or more offset wells within the same coal reservoir, detecting the biogas at the offset wells using isotopic differentiation, and mapping the migration of the biogas from the injection well to the offset wells using the biogas as an isotopic tracer.


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