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公开(公告)号：US20230332805A1
公开(公告)日：2023-10-19
申请号：US18027086
申请日：2021-08-31
发明人： Iain PITTMAN , Karl FARROW , Gary WILLIAMS , Per GWALTER , Martin HINDICKY
IPC分类号： F24T10/17
CPC分类号： F24T10/17
摘要： A heat exchange system and related method for retrofitting an existing bore with the said system, the system being adapted to be used within a bore formed within the ground, and being independent of formation fluids, the system comprising a first pipe and a second pipe together forming a fluid path, wherein substantially a lower end in use of each of the first pipe and the second pipe are in fluid communication with each other and with a sump, so that fluid can flow between the first pipe and the second pipe via the sump within the said bore, the system further comprising a pump adapted to drive heat exchange fluid through the said pipes and a heat exchange unit adapted to transfer thermal energy to or from the said heat exchange fluid.
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公开(公告)号：US11674388B1
公开(公告)日：2023-06-13
申请号：US17169228
申请日：2021-02-05
申请人： HYPERSCIENCES, INC.
IPC分类号： E21B49/04 , G01V1/04 , F24T10/13 , E21B47/07 , E21B41/00 , E21B7/16 , G01V1/143 , E21B47/14 , E21B7/04 , F24T10/17 , G01V1/104 , F24T10/00
CPC分类号： E21B47/14 , E21B7/04 , E21B7/16 , E21B41/0085 , E21B47/07 , E21B49/04 , F24T10/13 , F24T10/17 , G01V1/04 , G01V1/104 , G01V1/143 , F24T2010/53 , F24T2201/00 , Y02E10/10
摘要： Boreholes used for generating geothermal energy or other purposes are formed at least in part by accelerating projectiles toward geologic material. Interaction between a projectile and the geologic material may generate debris or other material. The temperature of this generated material may be used to determine the potential for generation of geothermal energy using the borehole. Based on the temperature of the material, a fluid having a different temperature than that of the material is provided into the borehole for generation of power using geothermal energy.
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公开(公告)号：US11549726B2
公开(公告)日：2023-01-10
申请号：US16491333
申请日：2018-03-06
申请人： E-TUBE SWEDEN AB
发明人： Peter Särneö , Lars Westerlind
摘要： A flexible sealing tube is described that is adapted to be installed in and extend along a bore in the ground for use in a system for exchanging of energy with the ground. The flexible sealing tube has a first tube end to be installed at an inner part of said bore, and the flexible sealing tube is closed in the first tube end. The flexible sealing tube also has a first channel and a second channel extending in a longitudinal direction (L) of the flexible sealing tube, the first and second channels being in fluid connection with each other. The first and second channels are formed by the flexible sealing tube.
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公开(公告)号：US20220333826A1
公开(公告)日：2022-10-20
申请号：US17716264
申请日：2022-04-08
发明人： Jiajun Xu , Takele Gemeda
摘要： A one-piece, unitarily formed compact geothermal heat exchanger comprises a one-piece body having an external screw-type configuration including a cutting tip and a spiral thread extending from the cutting tip upwards towards the top of the body of the heat exchanger. The top face of the body includes a working fluid inlet and a working fluid outlet, each of which are in communication with an internal continuous helical channel inside of the one-piece body through which the working fluid travels during operation to transfer heat energy between the working fluid and the ground. A compact geothermal heat exchanger having such configuration may be installed by screwing the heat exchanger into the ground to the desired depth, without requiring prior digging or other excavation of the ground surface. The compact geothermal heat exchanger may then be connected to a conventional geothermal heating and cooling system for geothermal heating and/or cooling of a space, such as the interior of a building. The compact geothermal heat exchange may also be connected in series to provide expanded capacity for customized cooling/heating needs and cost consideration.
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公开(公告)号：US11255576B2
公开(公告)日：2022-02-22
申请号：US16968370
申请日：2019-02-08
发明人： Brian S. Higgins , Joseph A. Scherer , Dan Hoyer
摘要： Methods and systems for producing thermal or electrical power from geothermal wells. Power is produced from a working fluid circulating in a closed loop within a geothermal well. Geothermal steam or brine at depth transfers heat at higher temperature than at the surface to the working fluid. The working fluid is then used to produce power directly or indirectly. The geothermal production fluid may be stimulated through use of gas lifting or submersible pumps to assist in bringing such fluids to the surface or through the use blockers to encourage the downhole steam advection and brine recirculation through the resource in a connective loop. The working fluid may be compatible with existing direct heat or power generation equipment; i.e., water for flash plants or hydrocarbons/refrigerants for binary plants.
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公开(公告)号：US20210048229A1
公开(公告)日：2021-02-18
申请号：US16963528
申请日：2019-02-12
申请人： QUANTITATIVE HEAT OY
发明人： Rami NIEMI
摘要： A geothermal heat exchanger, a geothermal heat arrangement and to a method in connection with a geothermal heat arrangement. The geothermal heat exchanger includes a piping arrangement having a rise pipe and a drain pipe, and a first pump arranged to the piping arrangement. The rise pipe and drain pipe are arranged in fluid communication with each other for circulating the primary working fluid. The rise pipe is provided with a first thermal insulation surrounding the rise pipe along at least part of the length of the rise pipe and the first pump is arranged to circulate the primary working fluid in a direction towards a lower end of the rise pump.
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公开(公告)号：US10690382B2
公开(公告)日：2020-06-23
申请号：US15778951
申请日：2016-11-22
申请人： BRGM
发明人： Denis Nguyen
摘要： The invention relates to a geothermal exchanger comprising a casing containing a heat-transfer fluid with which it is in direct contact. The casing is flexible such as to be in direct contact with a wall of the borehole containing the exchanger under the effect of the pressure of the heat-transfer fluid.
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公开(公告)号：US10401056B2
公开(公告)日：2019-09-03
申请号：US15869910
申请日：2018-01-12
发明人： Xianzhi Song , Gensheng Li , Zhongwei Huang , Shouceng Tian , Haizhu Wang , Huaizhong Shi , Mao Sheng , Yiqun Zhang , Jingbin Li , Yu Shi
IPC分类号： F24T10/20 , F24T10/17 , E21B43/30 , E21B41/00 , E21B49/00 , E21B43/08 , E21B7/04 , E21B47/04 , E21B33/14 , F24T10/00
摘要： The present disclosure provides a hydrothermal geothermal development method of multilateral well closed circulation, comprises the steps of: dividing a geothermal reservoir into single layers according to geothermal reservoir geological conditions, wherein an upper single layer with a lower water temperature and a higher permeability is taken as a recharge layer, and a lower single layer with a higher water temperature is taken as a production layer; tripping a production casing, and injecting cement for well cementation; performing casing lateral windowing in a vertical hole corresponding to the recharge layer, and drilling several branch radial horizontal holes into the recharge layer; performing casing lateral windowing in the vertical hole corresponding to the production layer, and drilling several branch radial horizontal holes into the production layer; tripping a guiding pipe into the production casing of the vertical hole, with a depth thereof reaching a well section between the recharge layer and the production layer; tripping a packer at a guiding shoe to isolate the guiding pipe and an annulus of the casing from each other, so as to prevent geothermal fluid of the recharge layer and the production layer from being communicated with each other in the vertical hole.
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公开(公告)号：US10203162B2
公开(公告)日：2019-02-12
申请号：US15507833
申请日：2015-08-31
发明人： Takehiko Yokomine , Hideo Sakamoto
摘要： To provide a geothermal heat exchanger with high thermal efficiency, which can reduce heat loss to a non-geothermal zone when high-temperature liquid heated in the deep underground is transported to the ground. The geothermal heat exchanger of the present invention includes a liquid transport pipe provided with a liquid lowering pipe to which a heat exchange liquid which is pressurized and supplied, a liquid raising pipe which is disposed on the inside or outside side of the liquid lowering pipe and raises the heat exchange liquid which is descended to the geothermal zone, moved from the lower part and composed of the high-temperature liquid generated by which heat from the geothermal zone is supplied, and an outer thermal insulation layer which is provided on a part or the whole of the outside of the liquid transport pipe at least from the ground surface to the geothermal zone.
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公开(公告)号：US20240218627A1
公开(公告)日：2024-07-04
申请号：US18605003
申请日：2024-03-14
申请人： Hubbell Incorporated
发明人： Timothy Michael Kemp
IPC分类号： E02D5/56 , E02D5/52 , E21B7/20 , E21B10/44 , F24T10/00 , F24T10/17 , F24T50/00 , F28D20/00 , F28D21/00
CPC分类号： E02D5/56 , E21B7/205 , E21B10/44 , F24T10/17 , F24T50/00 , E02D5/523 , E02D5/526 , F24T2010/53 , F25B2313/002 , F28D20/0052 , F28D2021/0019 , F28D2021/0035 , Y02E10/10
摘要： A helical pile including a heat exchanger is described. The pile is formed from a lead section and one or more extension sections. The interior of the lead and extension sections are hollow and form a heat exchanger cavity. At the lower end of the lead section is a helical blade. Rotation of the lead section causes the helical blade to screw into the ground, thus pulling the lead section downward. Extension sections are added to the lead section and the pile is rotated until it is installed to a desired depth. The pile includes an inflow tube extending a predetermined distance into the heat exchanger cavity and an outflow port connected with the heat exchanger cavity. In operation, a heat carrying fluid is pumped into the inflow tube from a heat source or sink, for example, a heat pump for a building heating and cooling system. The fluid exits the tube at a point near the bottom of the heat exchanger cavity. The fluid flows upward through the heat exchange cavity and exchanges heat with the surrounding soil. The fluid flows out through the outflow port and back to the heat source or sink.
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