Abstract: Methods and systems for gasifying coal are disclosed herein. In some embodiments, a representative coal gasification system can comprise (i) an injection well extending from a ground surface to an underground coal gasification (UCG) reaction region of a coal seam; (ii) a production well spaced apart from the injection well and extending from the ground surface to the UCG reaction region, and (iii) conduits each extending from the ground surface to areas of the coal seam. End portions of the conduits within the coal can be laterally peripheral to the UCG reaction region. The conduits are configured to deliver a primary fluid from the ground surface to the primary region, the injection well is configured to deliver an oxidant gas to the UCG reaction region, and the production well is configured to deliver the product gas from the UCG reaction region to the ground surface.
Type:
Grant
Filed:
August 8, 2022
Date of Patent:
January 14, 2025
Assignee:
Ergo Exergy Technologies, Inc.
Inventors:
Mikhail Blinderman, Ivan Saptykov, Semyon Maev, Brett Eugene Wilcox
Abstract: Methods and systems for gasifying coal are disclosed herein. In some embodiments, a representative coal gasification system can comprise (i) an injection well extending from a ground surface to an underground coal gasification (UCG) reaction region of a coal seam; (ii) a production well spaced apart from the injection well and extending from the ground surface to the UCG reaction region, and (iii) conduits each extending from the ground surface to areas of the coal seam. End portions of the conduits within the coal can be laterally peripheral to the UCG reaction region. The conduits are configured to deliver a primary fluid from the ground surface to the primary region, the injection well is configured to deliver an oxidant gas to the UCG reaction region, and the production well is configured to deliver the product gas from the UCG reaction region to the ground surface.
Type:
Grant
Filed:
November 22, 2021
Date of Patent:
September 13, 2022
Assignee:
Ergo Exergy Technologies Inc.
Inventors:
Mikhail Blinderman, Ivan Saptykov, Semyon Maev, Brett Eugene Wilcox
Abstract: Methods and systems for gasifying coal are disclosed herein. In some embodiments, a representative coal gasification system can comprise (i) an injection well extending from a ground surface to an underground coal gasification (UCG) reaction region of a coal seam; (ii) a production well spaced apart from the injection well and extending from the ground surface to the UCG reaction region, and (iii) conduits each extending from the ground surface to areas of the coal seam. End portions of the conduits within the coal can be laterally peripheral to the UCG reaction region. The conduits are configured to deliver a primary fluid from the ground surface to the primary region, the injection well is configured to deliver an oxidant gas to the UCG reaction region, and the production well is configured to deliver the product gas from the UCG reaction region to the ground surface.
Type:
Grant
Filed:
March 12, 2021
Date of Patent:
September 21, 2021
Assignee:
Ergo Exergy Technologies Inc.
Inventors:
Mikhail Blinderman, Ivan Saptykov, Semyon Maev, Brett Eugene Wilcox