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公开(公告)号：US20230018178A1
公开(公告)日：2023-01-19
申请号：US17946329
申请日：2022-09-16
Applicant: Eavor Technologies Inc.
Inventor： Matthew Toews , Bailey Schwarz , John Redfern , Paul Cairns
Abstract: 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.
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公开(公告)号：US20220372838A1
公开(公告)日：2022-11-24
申请号：US17665002
申请日：2022-02-04
Applicant: Eavor Technologies Inc.
Inventor： Matthew Toews , Paul Cairns , Peter Andrews , Andrew Curtis-Smith , Jonathan Hale
IPC: E21B33/138 , E21B43/30 , F24T10/10 , C09K8/08 , C09K8/40 , C09K8/42 , C09K8/46 , F24T10/13 , F24T50/00
Abstract: Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling to form an impervious layer at the wellbore/formation interface. The techniques may be chemical, thermal, mechanical, biological and are fully intended to irreversibly damage the formation in terms of the permeability thereof. With the permeability negated, the wellbore may be used to create a closed loop surface to surface geothermal well operable in the absence of well casing for maximizing thermal transfer to a circulating working fluid. Formulations for the working and drilling fluids are disclosed.
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公开(公告)号：US20210231109A1
公开(公告)日：2021-07-29
申请号：US17105568
申请日：2020-11-26
Applicant: EAVOR TECHNOLOGIES INC.
Inventor： MATTHEW TOEWS , BAILEY SCHWARZ , JOHN REDFERN , PAUL CAIRNS
Abstract: 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.
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公开(公告)号：US20250027686A1
公开(公告)日：2025-01-23
申请号：US18711333
申请日：2021-11-17
Applicant: Eavor Technologies Inc.
Inventor： Michael Holmes , Matthew Toews
Abstract: A method includes circulating a heat transfer working fluid in a closed loop between a geothermal well residing in a subterranean zone and at least one of a heat exchanger or a turbine. The well is substantially sealed to limit fluid loss of the working fluid into the subterranean zone. While circulating the working fluid, at least one of a viscosity of the working fluid or a pressure differential between the working fluid and the subterranean zone is controlled in relation to a flow of fluid between the subterranean zone and the well.
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公开(公告)号：US12163696B2
公开(公告)日：2024-12-10
申请号：US18501582
申请日：2023-11-03
Applicant: Eavor Technologies Inc.
Inventor： Paul Cairns , Matthew Toews , John Redfern
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US12140028B2
公开(公告)日：2024-11-12
申请号：US18114798
申请日：2023-02-27
Applicant: Eavor Technologies Inc.
Inventor： Matthew Toews , Michael Holmes , Ariel Torre , Aleksandr Vetsak , Mark Hodder
Abstract: A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.
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公开(公告)号：US20240060685A1
公开(公告)日：2024-02-22
申请号：US18501582
申请日：2023-11-03
Applicant: Eavor Technologies Inc.
Inventor： Paul Cairns , Matthew Toews , John Redfern
Abstract: 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.
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公开(公告)号：US11808488B2
公开(公告)日：2023-11-07
申请号：US17499415
申请日：2021-10-12
Applicant: Eavor Technologies Inc.
Inventor： Paul Cairns , Matthew Toews , John Redfern
Abstract: 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.
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公开(公告)号：US20220026112A1
公开(公告)日：2022-01-27
申请号：US17499415
申请日：2021-10-12
Applicant: Eavor Technologies Inc.
Inventor： Paul Cairns , Matthew Toews , John Redfern
IPC: F24T10/13
Abstract: 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.
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公开(公告)号：US20210164327A1
公开(公告)日：2021-06-03
申请号：US17094929
申请日：2020-11-11
Applicant: EAVOR TECHNOLOGIES INC.
Inventor： MATTHEW TOEWS , MICHAEL HOLMES
Abstract: Methods for drilling in higher temperature rock formations such as geothermal formations with phase change material augmented drilling fluid are disclosed. By observing flow rate of the augmented fluid, heat exchange between the annulus returning fluid and tubular fluid can be minimized thereby facilitating a cooler fluid for contact with a rock face being drilled. The cooling assists in pre-fracturing the rock face prior to destruction by the drill bit.
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