Patents by Inventor JOHN REDFERN
JOHN REDFERN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 12474089Abstract: A method includes flowing, in a closed loop geothermal well residing in a target subterranean zone, a first heat transfer working fluid and flowing, in the geothermal well, a second working fluid from the surface inlet to the downhole location of the geothermal well. The second working fluid resides upstream of the first heat transfer working fluid. The second working fluid includes a fluid density greater than a fluid density of the first heat transfer working fluid. The method also includes circulating, in the geothermal well, the second working fluid pushing, with the second working fluid, the first heat transfer working fluid toward a surface outlet of the geothermal well. The method also includes collecting energy from the mobilized first heat transfer working fluid received at the surface outlet of the geothermal well.Type: GrantFiled: August 5, 2021Date of Patent: November 18, 2025Inventors: Matthew Toews, Bailey Schwarz, John Redfern, Paul Cairns, Vsevolod Zatonski
-
Publication number: 20250154938Abstract: Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.Type: ApplicationFiled: January 15, 2025Publication date: May 15, 2025Inventors: Matthew Toews, Bailey Schwarz, John Redfern, Paul Cairns
-
Publication number: 20250146714Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: ApplicationFiled: November 15, 2024Publication date: May 8, 2025Inventors: Paul Cairns, Matthew Toews, John Redfern
-
Patent number: 12241660Abstract: Operational protocol sequences for recovering energy from a thermally productive formation are disclosed. Sealing, drilling, multiranging, power production and distribution techniques in predetermined sequences for well formation are utilized to recover energy regardless of thermal gradient variation, formation depth and permeability and other anomalies or impedances.Type: GrantFiled: June 26, 2020Date of Patent: March 4, 2025Assignee: Eavor Technologies Inc.Inventors: Matthew Toews, Bailey Schwarz, Derek Riddell, Paul Cairns, John Redfern, Andrew Curtis-Smith, Jonathan Hale, Peter Andrews
-
Patent number: 12228112Abstract: Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.Type: GrantFiled: September 16, 2022Date of Patent: February 18, 2025Assignee: Eavor Technologies Inc.Inventors: Matthew Toews, Bailey Schwarz, John Redfern, Paul Cairns
-
Patent number: 12163696Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: GrantFiled: November 3, 2023Date of Patent: December 10, 2024Inventors: Paul Cairns, Matthew Toews, John Redfern
-
Publication number: 20240060685Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: ApplicationFiled: November 3, 2023Publication date: February 22, 2024Inventors: Paul Cairns, Matthew Toews, John Redfern
-
Patent number: 11808488Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: GrantFiled: October 12, 2021Date of Patent: November 7, 2023Assignee: Eavor Technologies Inc.Inventors: Paul Cairns, Matthew Toews, John Redfern
-
Publication number: 20230288099Abstract: A method includes flowing, in a closed loop geothermal well residing in a target subterranean zone, a first heat transfer working fluid and flowing, in the geothermal well, a second working fluid from the surface inlet to the downhole location of the geothermal well. The second working fluid resides upstream of the first heat transfer working fluid. The second working fluid includes a fluid density greater than a fluid density of the first heat transfer working fluid. The method also includes circulating, in the geothermal well, the second working fluid pushing, with the second working fluid, the first heat transfer working fluid toward a surface outlet of the geothermal well. The method also includes collecting energy from the mobilized first heat transfer working fluid received at the surface outlet of the geothermal well.Type: ApplicationFiled: August 5, 2021Publication date: September 14, 2023Inventors: Matthew Toews, Bailey Schwarz, John Redfern, Paul Cairns, Vsevolod Zatonski
-
Publication number: 20230018178Abstract: Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.Type: ApplicationFiled: September 16, 2022Publication date: January 19, 2023Inventors: Matthew Toews, Bailey Schwarz, John Redfern, Paul Cairns
-
Patent number: 11460008Abstract: Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.Type: GrantFiled: November 26, 2020Date of Patent: October 4, 2022Assignee: Eavor Technologies Inc.Inventors: Matthew Toews, Bailey Schwarz, John Redfern, Paul Cairns
-
Publication number: 20220026112Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: ApplicationFiled: October 12, 2021Publication date: January 27, 2022Inventors: Paul Cairns, Matthew Toews, John Redfern
-
Patent number: 11156386Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: GrantFiled: July 27, 2019Date of Patent: October 26, 2021Assignee: Eavor Technologies Inc.Inventors: Paul Cairns, Matthew Toews, John Redfern
-
Patent number: 11125472Abstract: Fluid classes for use in energy recovery in well and geothermal environments for power production are disclosed. The fluids fall into the classes of fluids being capable of increasing thermodynamic efficiency of electricity and/or heat generation from a closed-loop geothermal system. Numerous methods are disclosed which exploit the thermodynamics of the fluids for optimum energy recovery.Type: GrantFiled: April 21, 2019Date of Patent: September 21, 2021Assignee: Eavor Technologies Inc.Inventors: Matthew Toews, Glenn Price, Paul Cairns, John Redfern, Jeff Smith
-
Publication number: 20210231109Abstract: Methods for providing on demand power to an end user in a variety of embodiments are disclosed. Closed loop thermal recovery arrangements are disposed within a geologic formation having a predetermined potential thermal output capacity. A power generation device is incorporated in the loop to recover energy. A working fluid is circulated within the loop at varying flow rates to oscillate thermal output about the predetermined potential thermal output capacity, to produce on demand power where the average thermal output may equal the predetermined potential thermal output capacity. Integrations with intermittent renewable energy sources are provided which optimize performance and distribution.Type: ApplicationFiled: November 26, 2020Publication date: July 29, 2021Inventors: MATTHEW TOEWS, BAILEY SCHWARZ, JOHN REDFERN, PAUL CAIRNS
-
Publication number: 20210003320Abstract: Operational protocol sequences for recovering energy from a thermally productive formation are disclosed.Type: ApplicationFiled: June 26, 2020Publication date: January 7, 2021Inventors: MATTHEW TOEWS, BAILEY SCHWARZ, DEREK RIDDELL, PAUL CAIRNS, JOHN REDFERN, ANDREW CURTIS-SMITH, JONATHAN HALE, PETER ANDREWS
-
Publication number: 20200049380Abstract: A method for controlling temperature maxima and minima from the heel to toe in geothermal well lateral sections. The method includes disposing at least a pair of wells proximately where thermal contact is possible. Working fluid is circulated in one well of the pair in one direction and the working fluid of the second well is circulated in as direction opposite. to the first. In this manner temperature equilibration is attainable to mitigate maxima and minima to result in a substantially more uniform temperature of the working fluids in respective wells and the rock formation area there between. Specific operating protocol is disclosed having regard to the temperature control for maximizing thermal energy recovery.Type: ApplicationFiled: July 27, 2019Publication date: February 13, 2020Inventors: PAUL CAIRNS, MATTHEW TOEWS, JOHN REDFERN
-
Publication number: 20190346181Abstract: Fluid classes for use in energy recovery in well and geothermal environments for power production are disclosed. The fluids fall into the classes of fluids being capable of increasing thermodynamic efficiency of electricity and/or heat generation from a closed-loop geothermal system. Numerous methods are disclosed which exploit the thermodynamics of the fluids for optimum energy recovery.Type: ApplicationFiled: April 21, 2019Publication date: November 14, 2019Applicant: EAVOR TECHNOLOGIES INC.Inventors: MATTHEW TOEWS, GLENN PRICE, PAUL CAIRNS, JOHN REDFERN, JEFF SMITH
-
Publication number: 20190128567Abstract: A method and system for capturing geothermal energy. Injection and production well pairs in a geothermal zone are connected with a power generation apparatus between the production well of one well pair and the injection well of an adjacent well pair in a subterranean closed loop daisy chain configuration. Fluid circulated through the loop and the power generation apparatus recover subterranean heat energy. Specification is also disclosed in respect of application of the technology to repurpose an unused or suspended oilfield.Type: ApplicationFiled: September 5, 2018Publication date: May 2, 2019Inventor: JOHN REDFERN