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21.发明申请公开(公告)号：US20180291880A1
公开(公告)日：2018-10-11
申请号：US15935016
申请日：2018-03-25
申请人： PAUL CAIRNS , JEFF SMITH
发明人： PAUL CAIRNS , JEFF SMITH
摘要： A method and apparatus for recycling unused or suspended wells and areas with predetermined suitability for well installation. In one embodiment, existing unused well sites are repurposed for contact in or adjacent a geothermal zone. Drilling extends horizontally in direct contact with the geothermal zone for heat transfer and subsequently terminates at a newly drilled well. The heated working liquid within the sealed annulus is cooled within a sealed top loop at or below the surface and recirculated for further heat transfer. The closed loop is continuous above and below the geothermal formation and can cluster several such arrangements and also consolidate clusters in a drilling field of unused wells. The loop may be incorporated in areas with predetermined suitability (greenfield) for well installation.
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公开(公告)号：US20240271829A1
公开(公告)日：2024-08-15
申请号：US18195810
申请日：2023-05-10
发明人： Greg Lindberg , Kimberly C. Conner
IPC分类号： F24T10/13
CPC分类号： F24T10/13 , F24T2010/50
摘要： A geothermal system obtains heated heat transfer fluid via heat transfer with an underground reservoir of magma. The geothermal system includes a wellbore extending between a surface and into the underground reservoir of magma. A fluid pump provides a flow of heat transfer fluid toward the underground reservoir of magma. A fluid conduit extends from the surface toward a terminal end of the wellbore and allows flow of heated heat transfer fluid from a portion of the wellbore that extends into the underground reservoir of magma toward the surface.
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公开(公告)号：US11959356B2
公开(公告)日：2024-04-16
申请号：US17665002
申请日：2022-02-04
IPC分类号： E21B33/138 , C09K8/08 , C09K8/40 , C09K8/42 , C09K8/46 , E21B43/30 , F24T10/10 , F24T10/13 , F24T50/00 , F24T10/00
CPC分类号： E21B33/138 , C09K8/08 , C09K8/40 , C09K8/424 , C09K8/46 , E21B43/305 , F24T10/10 , F24T10/13 , F24T50/00 , F24T2010/50 , F24T2010/53 , Y02E10/10 , Y02W30/91
摘要： 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：US11852383B2
公开(公告)日：2023-12-26
申请号：US18099499
申请日：2023-01-20
发明人： Greg Lindberg , Kimberly C. Conner
CPC分类号： F24T10/13 , E21B36/003 , E21B41/0085 , E21B43/08 , E21B43/101 , F24T10/20 , F24T2010/53
摘要： System, method, and apparatus for harnessing geothermal power from superhot geothermal fluid (SHGF) and magma reservoirs. An exemplary apparatus can include a well screen coupled to an end of a casing string. The well screen, which is at least partially submerged within an underground reservoir, defines a volume in the underground reservoir that can be filled with superhot geothermal fluid. A slidable casing is aligned coaxially with the well screen and configured to be repositioned relative to the well screen. A draw pipe extending through the slidable casing is configured to convey SHGF from the underground reservoir towards the surface in response to the slidable casing being repositioned to obstruct more of a set of apertures in the well screen and an increase in pressure within a cavity of the slidable casing.
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公开(公告)号：US11841172B2
公开(公告)日：2023-12-12
申请号：US18099514
申请日：2023-01-20
发明人： Greg Lindberg , Kimberly C. Conner
CPC分类号： F24T10/13 , E21B36/003 , E21B41/0085 , E21B43/08 , E21B43/101 , F24T10/20 , F24T2010/53
摘要： System, method, and apparatus for harnessing geothermal power from superhot geothermal fluid (SHGF) and magma reservoirs. An exemplary embodiment is directed to a cased wellbore includes a well casing suspended within a borehole that extends between a surface and an underground reservoir of magma and a boiler casing housed within the well casing and extending between the surface and the underground reservoir of magma. The boiler casing has a first end submerged within the underground reservoir of magma and a terminal end opposite to the first end. The cased wellbore also includes a fluid conduit housed within the boiler casing and configured to deliver a liquid-phase fluid to the terminal end of the boiler casing. A temperature and a pressure at the terminal end of the boiler casing converts the liquid-phase fluid into a gas-phase fluid that travels through the boiler casing towards the surface. The cased wellbore also includes a well head connected to the first end of the boiler casing.
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公开(公告)号：US11802716B2
公开(公告)日：2023-10-31
申请号：US17603232
申请日：2020-04-08
申请人： TURBODEN S.P.A.
发明人： Mario Gaia , Roberto Bini
CPC分类号： F24T10/15 , F24T10/13 , F24T10/20 , F24T10/30 , F03G4/001 , F03G4/023 , F03G4/029 , F03G4/031 , F03G4/033 , F03G4/035 , F03G4/04 , F24T2010/53
摘要： A heat exchange circuit for a geothermal plant comprising a well excavated in the rock, a casing arranged inside the well, integral with it and comprising at least a first perforated section extending along a first portion of the well and at least a second perforated section extending along a second portion of the well, the perforated sections allowing the exit and the entry of a flow of geothermal fluid contained in an aquifer, an internal duct, located inside the casing in which a heat transfer fluid flows, wherein the well, the casing and the internal duct being arranged as a substantially closed ring, except for at least one surface interruption, at least one heat-exchange section at the bottom of the well between the first portion and the second portion of the well within which the geothermal fluid transfers heat to the heat transfer fluid.
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公开(公告)号：US11788516B2
公开(公告)日：2023-10-17
申请号：US17451473
申请日：2021-10-19
发明人： Theodore S. Sumrall
CPC分类号： F03G7/04 , F03G4/029 , F24T10/13 , F24T10/17 , F24T2010/53 , F24T2010/56 , F28F2240/00 , Y02E10/10
摘要： Systems and methods for producing energy from a geothermal formation. A heat exchanger can be disposed within a well to absorb heat from a geothermal formation. The heat exchanger can be supported within the well using a high thermal conductivity material. The heat exchanger is connected to an organic Rankine cycle engine including a secondary heat exchanger and a turbine. The primary and secondary heat transfer fluids are chosen to maximize efficiency of the organic Rankine cycle.
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公开(公告)号：US20230272946A1
公开(公告)日：2023-08-31
申请号：US18099514
申请日：2023-01-20
发明人： Greg Lindberg , Kimberly C. Conner
CPC分类号： F24T10/13 , E21B41/0085 , E21B36/003 , F24T2010/53
摘要： System, method, and apparatus for harnessing geothermal power from superhot geothermal fluid (SHGF) and magma reservoirs. An exemplary embodiment is directed to a cased wellbore includes a well casing suspended within a borehole that extends between a surface and an underground reservoir of magma and a boiler casing housed within the well casing and extending between the surface and the underground reservoir of magma. The boiler casing has a first end submerged within the underground reservoir of magma and a terminal end opposite to the first end. The cased wellbore also includes a fluid conduit housed within the boiler casing and configured to deliver a liquid-phase fluid to the terminal end of the boiler casing. A temperature and a pressure at the terminal end of the boiler casing converts the liquid-phase fluid into a gas-phase fluid that travels through the boiler casing towards the surface. The cased wellbore also includes a well head connected to the first end of the boiler casing.
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公开(公告)号：US11639814B2
公开(公告)日：2023-05-02
申请号：US17665694
申请日：2022-02-07
申请人： Ari Peter Berman
发明人： Ari Peter Berman
IPC分类号： F24T10/15 , F28D20/00 , F24T50/00 , F24T10/13 , E21B7/00 , B21D53/02 , E21B7/20 , F25B30/06 , F24T10/00
摘要： A new system for and a method of deploying a heat exchanger pipe. A bore hole is drilled from an access ditch location to a terminal ditch location using a piloted drill head powered via an umbilical attached to the piloted drill head. A casing is attached to the piloted drill head and disposed about the umbilical into the bore hole from the access ditch location to the terminal ditch location. At the terminal ditch location, the piloted drill head is removed from the casing and the umbilical and a heat exchanger pipe is attached to the umbilical. The umbilical is withdrawn from within the casing deployed in the bore hole to pull the heat exchanger pipe into the casing. The casing is then withdrawn from the bore hole leaving the heat exchanger pipe in the bore hole.
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公开(公告)号：US20220364550A1
公开(公告)日：2022-11-17
申请号：US17864859
申请日：2022-07-14
摘要： Thermal energy is extracted from geological formations using a heat harvester. In some embodiments, the heat harvester is a once-through, closed loop, underground heat harvester created by directionally drilling through hot rock. The extracted thermal energy can be converted or transformed to other forms of energy.
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