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废弃矿井抽水蓄能与地热开发联合施工方法

NºPublicación:  CN121205844A 26/12/2025
Solicitante: 
中国地质大学(北京)
CN_121205844_PA

Resumen de: CN121205844A

本发明公开了废弃矿井抽水蓄能与地热开发联合施工方法,首先对废弃矿井的永久性巷道区进行加固与防渗处理,使其作为抽水蓄能的地下库区;接着实施地下库区注水与地热开发,通过蓄水池冷水注入地下库区,同时接受地下水径流补给,水充分吸收周围地层热量后,通过离心泵抽至换热站,实现地热开发;之后进入冷水回注与蓄能发电阶段,蓄水池冷水回注地下库区时流经水轮机,带动其旋转并使发电机发电,同时地下库区进行蓄水,实现蓄能发电。最后地下库区内冷水再次吸热并进入“地下加热‑抽水换热‑回注发电”的循环。实现了抽水蓄能与地热开发的协同运行,解决了废弃矿井资源利用效率低的问题,为清洁能源开发和绿色低碳转型提供一种新模式。

一种利用地埋蒸汽管道余热的温差自发电装置及工作方法

NºPublicación:  CN121216920A 26/12/2025
Solicitante: 
哈尔滨工业大学
CN_121216920_PA

Resumen de: CN121216920A

一种利用地埋蒸汽管道余热的温差自发电装置及工作方法,属于热能回收与自供电技术领域。第一导热板设在蒸汽管道外壁,外侧有热端陶瓷基板、热电元件、冷端陶瓷基板及第二导热板,热电元件与负极导线及正极导线连接。第二导热板与热管连接,热管上端伸出至地面的外侧。本发明通过环状温差发电片与蒸汽管道外壁的贴合设计,有效减小热源与发电片的接触热阻,确保热端均匀受热,提升热能转化效率;采用热管与散热翅片组合的冷端散热结构,利用工质相变传热特性将冷端热量高效传递至地表空气,显著降低冷端温度,维持温差发电片的有效温差,从而稳定提升发电效率。

地热水输送系统

NºPublicación:  CN121206722A 26/12/2025
Solicitante: 
中国华能集团清洁能源技术研究院有限公司聊城昌润国电热力有限公司
CN_121206722_A

Resumen de: CN121206722A

本发明实施例的地热水输送系统包括取水段、输水段和用水段。其中,取水段包括第一管道和取水泵,第一管道的一端伸入地下,第一管道的另一端与取水泵的进水端相连,输水端包括第二管道和多个在输水段的输送方向上间隔设置于第二管道上的增压泵,第二管道的一端与取水泵的出水端相连;用水段包括第三管道和用水泵,用水泵的进水端与第二管道的另一端相连,用水泵的出水端与第三管道的一端相连,第三管道的另一端与用户相连。本发明实施例的地热水输送系统通过在输送段的输送方向上设置多个增压泵,能够地热水的输送过程中对第二管道内的地热水进行增压,避免第二管道内的地热水在输送过程中出现压力下降的问题,能够提高地热水的输送效率。

一种电场增强开采干热岩的系统及开采方法

NºPublicación:  CN121205581A 26/12/2025
Solicitante: 
常州大学
CN_121205581_PA

Resumen de: CN121205581A

本发明提供了一种电场增强开采干热岩的系统及开采方法,可用于地热开采,包括地面供电装置和地面循环系统;地面循环系统的高压泵将储液罐的液体注入到注入井内,从生产井采出的液体进入热交换器;直流电源的正负极与生产井和注入井连接;当需延缓冷锋推进、抑制热突破时,将生产井连接正极、注入井连接负极,使电场方向由生产井指向注入井,电渗流方向与压力驱动的达西流方向相反,可削弱总体流速、延迟热前沿推进;当需强化换热或提升短期产热能力,切换极性使电渗流与达西流同向,从而加速流体循环。本发明通过在储层中施加外部直流电场,利用电渗流效应对流体和热量的传输进行主动调节,从而有效延迟热突破、提高地热采收率并显著延长系统服役寿命。

地热采集系统、地热供能系统及供能系统的控制方法

NºPublicación:  CN121206721A 26/12/2025
Solicitante: 
电力规划总院有限公司
CN_121206721_PA

Resumen de: CN121206721A

本申请公开了一种地热采集系统、地热供能系统及供能系统的控制方法,涉及地热采集技术领域,地热采集系统包括安装于地热井内的热管,所述热管包括内管和设置于所述内管外周的N个进液管,所述N个进液管的第一端的开口方向朝向所述地热井的井口,所述N个进液管的第一端用于进液,所述N个进液管的第二端分别与所述内管的侧壁开设的N个出液口连通,所述N个出液口中的至少两个出液口的深度不相等,N为大于或者等于2的正整数。本申请每个进液管注入的液体量只是单一入口液体量的一部分,且N个进液管中的流体可至少在两种不同的深度下注入内管,能够有效减少浅层深度下液体量较大和蒸汽量较大导致的逆流结构不稳定流动现象。

Methods, Systems, and Devices for Quantifying Geothermal Heat Flux Using Vertical Temperature Profiles at Shallow Depths

NºPublicación:  US2025389457A1 25/12/2025
Solicitante: 
ATLAS ENERGY LTC CO LLC [US]
Atlas Energy, LTC. CO., LLC

Resumen de: US2025389457A1

Methods, systems, and devices for quantifying geothermal heat flux using shallow subsurface temperature measurements are provided. A method can include deploying vertical temperature probes with fiber optic sensors, strain sensors, and advective sensors at measurement sites. Time-series temperature data is then recorded, processed to determine equilibrium temperature profiles, and corrected for climate-driven signals, strain, and advection effects. Geothermal heat flux is calculated by combining the corrected temperature gradient with subsurface thermal conductivity, and a heat flux map can be generated to identify geothermal energy resources.

GEOTHERMAL POWER GENERATION SYSTEM

NºPublicación:  US2025387812A1 25/12/2025
Solicitante: 
FUJI ELECTRIC CO LTD [JP]
FUJI ELECTRIC CO., LTD
WO_2025018198_PA

Resumen de: US2025387812A1

A geothermal power generation system includes a binary power generator provided with a medium evaporator. The geothermal power generation system includes: gas-liquid separator to separate geothermal brine from a geothermal fluid spouted out from a production well; first pipe to send the geothermal brine separated by the gas-liquid separator to the medium evaporator; first valve provided inside the first pipe and to open and close a flow path of the first pipe; second pipe to send the geothermal brine, from which heat has been recovered by the binary power generator, from the medium evaporator to a re-injection well; analyzer to intake the geothermal brine flowing through the second pipe and to analyze components of a scale contained in incoming geothermal brine; and controller to determine at least one detergent from a plurality of detergent candidates, based on an analysis result of the analyzer, and to control supply of the detergent.

Methods, Systems, and Devices for Quantifying Geothermal Heat Flux Using Vertical Temperature Profiles at Shallow Depths

NºPublicación:  US2025389458A1 25/12/2025
Solicitante: 
ATLAS ENERGY LTC CO LLC [US]
Atlas Energy, LTC. CO., LLC

Resumen de: US2025389458A1

Methods, systems, and devices for quantifying geothermal heat flux using shallow subsurface temperature measurements are provided. A method can include deploying vertical temperature probes with fiber optic sensors, strain sensors, and advective sensors at measurement sites. Time-series temperature data is then recorded, processed to determine equilibrium temperature profiles, and corrected for climate-driven signals, strain, and advection effects. Geothermal heat flux is calculated by combining the corrected temperature gradient with subsurface thermal conductivity, and a heat flux map can be generated to identify geothermal energy resources.

SYSTEMS AND PROCESSES FOR STIMULATING SUBTERRANEAN GEOLOGIC FORMATIONS

NºPublicación:  US2025389456A1 25/12/2025
Solicitante: 
MAZAMA ENERGY INC [US]
MAZAMA ENERGY, INC
US_12305893_PA

Resumen de: US2025389456A1

Systems and processes for stimulating subterranean geologic formations to create an artificial stress barrier.

HEAT EXTRACTION METHOD FOR LIQUID DOMINATED GEOTHERMAL RESERVOIRS

NºPublicación:  US2025389257A1 25/12/2025
Solicitante: 
GREENFIRE ENERGY INC [US]
GreenFire Energy Inc

Resumen de: US2025389257A1

Methods and systems for extracting geothermal energy are disclosed. The method may include inserting a closed-loop geothermal system into a wellbore penetrating a geothermal reservoir, where the closed-loop geothermal system comprises a fluid conduit, and a downhole end of the fluid conduit is disposed in a first downhole portion of the wellbore, disposing a pump with a fluid inlet positioned within the first downhole portion, and drawing, using the pump, geothermal fluid into the first downhole portion of the wellbore. The method may further include extracting heat, using the closed-loop geothermal system circulating a working fluid, from the drawn geothermal fluid within the first downhole portion and transporting the extracted heat to a primary heat utilization facility disposed on the surface of the earth.

GEOTHERMAL HEAT EXTRACTOR

NºPublicación:  US2025389455A1 25/12/2025
Solicitante: 
JTEC ENERGY INC [US]
JTEC ENERGY , INC
JP_2025501117_PA

Resumen de: US2025389455A1

A geothermal heat extractor includes a heat transfer fluid and a heat transfer fluid supply conduit. The heat transfer fluid is maintained in the supply conduit in a liquid state at a pressure above its saturation pressure. The geothermal heat extractor further includes a heat transfer fluid return conduit, a geothermal heat source coupled thereto, at least one flow control valve configured to control the flow of the heat transfer fluid from the supply conduit to the return conduit, and an external load coupled to the return conduit. As the heat transfer fluid is provided to the return conduit in the liquid state, the heat transfer fluid vaporizes in the return conduit by heat supplied to the return conduit from the geothermal heat source. The vaporized heat transfer fluid is supplied from the return conduit to the external load.

Carbon Dioxide Removal Systems Utilizing Solid Precipitates Formation

NºPublicación:  US2025387749A1 25/12/2025
Solicitante: 
AIRMYNE INC [US]
AirMyne, Inc
US_2025288945_PA

Resumen de: US2025387749A1

In a general aspect, a carbon dioxide (CO2) removal system uses geothermal energy. In some implementations, a method to remove CO2 gas from a gaseous feed includes directing a gaseous feed to interact with an alkaline capture solution in a first gas-liquid contactor. A first portion of CO2 from the gaseous feed dissolves into the alkaline capture solution to form a CO2-rich alkaline capture solution. Steam is generated using heat from a geothermal heat source, and the steam heats the CO2-rich alkaline capture solution in a second gas-liquid contactor. A second portion of the CO2 is separated from the CO2-rich alkaline capture solution in the second gas-liquid contactor to form a CO2-lean alkaline capture solution. The CO2-lean alkaline capture solution is directed to the first gas-liquid contactor.

REINFORCED CONCRETE PILE, PILE ASSEMBLY, METHOD OF JOINING THE PILES' HEAT TRANSFER PIPES TO EACH OTHER, AND METHOD OF FABRICATING A REINFORCED CONCRETE PILE

NºPublicación:  EP4665911A1 24/12/2025
Solicitante: 
LEINO JORMA [FI]
Leino, Jorma
FI_20235163_A1

Resumen de: WO2024170827A1

A reinforced concrete pile (1, 1') comprises a heat transfer pipe (2, 3) and at least one of the pile's (1, 1') ends constitutes a splicing end by which the pile (1, 1') is connectible to another pile (1, 1') for obtaining a pile assembly and, at the splicing end, the heat transfer pipe (2, 3) is adapted to be joined with the other pile's (1, 1') respective heat transfer pipe (2, 3). The pile's (1, 1') splicing end is provided with a positioner sleeve (14), which surrounds the heat transfer pipe's (2, 3) end in such a way that between the heat transfer pipe (2, 3) and the positioner sleeve (14) develops an annular space (6) for receiving a sealing sleeve (11), which is made at least partially from a plastically deformable material and extends outward from the pile's splicing end, and the positioner sleeve's (14) end, which is located further away from the pile's (1, 1') splic ing end, is designed to have its inner diameter decreasing towards the discussed end in such a way that, in the process of connecting two piles (1, 1') to each other and hammering the upper pile (1') towards the lower pile (1), the sealing sleeve (11), disposed in the annular space (6) has its end, within the positioner sleeve's (14) decreasing inner diameter zone, deforming plastically, sealing against the heat transfer pipe's (2, 3) external surface.

CLOSED WELL LOOP FOR GEOTHERMAL SYSTEMS

NºPublicación:  EP4665949A1 24/12/2025
Solicitante: 
SERVICES PETROLIERS SCHLUMBERGER [FR]
SCHLUMBERGER TECHNOLOGY BV [NL]
Services P\u00E9troliers Schlumberger,
Schlumberger Technology B.V
WO_2024192189_PA

Resumen de: WO2024192189A1

A closed well loop is provided for a geothermal system. The closed well loop includes at least one well having at least one lateral section the traverses a subterranean formation. Fluid flow in the at least one lateral section extracts thermal energy from the subterranean formation. The fluid flow in the at least one lateral section is driven by convection where hotter fluid convects upward along the top part of the lateral section and colder fluid convects downward along the bottom part of the lateral section.

一种利用石墨烯封堵微纳米裂缝以优化油气开采的方法

NºPublicación:  CN121184082A 23/12/2025
Solicitante: 
西南石油大学
CN_121184082_PA

Resumen de: CN121184082A

本发明涉及油气田开发技术领域,尤其涉及一种利用石墨烯封堵微纳米裂缝以优化油气开采的方法。其技术方案包括以下步骤:地质评估与通道建立,确定目标油藏邻近的高温地热层,并建立连接所述地热层与所述油藏的裂缝通道;裂缝选择性封堵,制备石墨烯基封堵材料,并将其注入所述裂缝通道,对部分裂缝进行选择性封堵,以形成热绝缘层,减少热能损失;地热循环与驱油,通过注入井向所述地热层注入流体。本发明将地热开发与油气开采创新性地深度融合,通过石墨烯封堵技术与系统性的井网设计,构建了高效、经济、环保的提高采收率方法,不仅提升了油气产量和热能利用效率,在节能降耗的同时实现碳封存。

孔隙型砂岩热储地热井控砂抽水系统

NºPublicación:  CN121184410A 23/12/2025
Solicitante: 
北京泰利新能源科技发展有限公司
CN_121184410_PA

Resumen de: CN121184410A

本发明涉及地热资源开发技术领域,尤其涉及一种孔隙型砂岩热储地热井控砂抽水系统,本发明提供的孔隙型砂岩热储地热井控砂抽水系统,包括:地热井,适用于孔隙型砂岩热储层;抽水装置,包括设置在地热井内的水泵和连接于水泵输入端的吸水管,吸水管的底部封闭,吸水管的管壁设置有透水孔;过滤组件,套设于吸水管的外周侧,过滤组件沿吸水管的延伸方向设置,并覆盖透水孔,本发明提供的孔隙型砂岩热储地热井控砂抽水系统能够在井内实现对砂粒的有效拦截,可有效解决孔隙型砂岩热储开发中的出砂问题。

一种地热流体在地热井筒流动过程中总热损失的计算方法

NºPublicación:  CN121184958A 23/12/2025
Solicitante: 
天津大学天津地热勘查开发设计院
CN_121184958_PA

Resumen de: CN121184958A

本发明公开了一种地热流体在地热井筒流动过程中总热损失的计算方法,本方法同时考虑相变传热和污垢热阻对地热流体总热损失的影响。结果表明:总热损失随着地热井筒深度的变浅而逐渐增加,一旦地热流体发生闪蒸,则总热损失迅速增加。此外,根据能量守恒方程可知:地热流体总热损失主要分为三部分,分别由比焓、动能和势能引起。由计算结果能够推断:比焓是引起总热损失的主要原因,其变化趋势与总热损失基本保持一致。该计算结果主要用于揭示引起地热流体总热损失的主要因素,并通过改进井筒结构以及地热开采方式等措施减少地热流体总热损失,最终提升地热能的整体利用效率。

钻探多侧向闭环地热井

NºPublicación:  CN121175476A 19/12/2025
Solicitante: 
埃沃尔技术股份有限公司
CN_121175476_PA

Resumen de: WO2024218548A1

A method performed on a wellbore system with a first surface wellbore extending from a terranean surface to a subterranean zone, a second surface wellbore extending from the terranean surface to the subterranean zone and a plurality of connecting wellbores in the subterranean zone each connecting the first and second surface wellbores. A lateral wellbore is drilled using a drill string extending through the first surface wellbore. While drilling, flow of drilling fluid from the drill string is sealed against returning towards the first surface wellbore through the connecting wellbores.

一种地下高温熔盐热储系统及建造运行方法

NºPublicación:  CN121163286A 19/12/2025
Solicitante: 
中国电力工程顾问集团西北电力设计院有限公司
CN_121163286_PA

Resumen de: CN121163286A

本发明涉及热储能技术领域,具体涉及一种地下高温熔盐热储系统及建造运行方法。系统包括地下储罐单元、热管理单元、结构单元以及防渗单元,地下储罐单元用于容纳高温熔盐,且地下储罐单元设于地下基坑内,热管理单元包覆于地下储罐单元的外侧,结构单元包括沿内至外方向依次于热管理单元外侧布置的内层耐热结构层和外层结构层,防渗单元包括设置于地下储罐单元内部的内衬涂层,以及沿内至外方向依次于外层结构层外侧布置的土工膜层与回填防渗层。本发明的集成化结构能够突破传统钢罐的尺寸与材料限制,实现单罐容量显著提升,减少对多罐并联的依赖,降低系统复杂性与建造成本,同时保障长期运行的安全与环保性。

Anlage zur Bereitstellung von Wärme und Verfahren zur Errichtung einer derartigen Anlage

NºPublicación:  DE102024116902A1 18/12/2025
Solicitante: 
NESSLER RENE [DE]
Nessler, Ren\u00E9

Resumen de: DE102024116902A1

Beschrieben werden eine Anlage und ein Verfahren zur zur Bereitstellung von Wärme zum Heizen, zur Erzeugung elektrischer Energie und/oder zur Nutzung als Prozesswärme mit einer in einen Untergrund (1) eingebrachten Erdwärmesonde (2), die sich zumindest teilweise innerhalb einer verfüllten Bohrung und/oder eines verfüllten Grabens (5) befindet, zumindest abschnittsweise gegenüber einer Horizontalen und einer Vertikalen geneigt ist und in der wenigstens ein erster und ein zweiter Strömungskanal (3a, 3b) angeordnet sind, durch die mittels einer Pumpe (4) ein Wärmeträgermedium förderbar ist, wobei der erste und der zweite Strömungskanal (3a, 3b) innerhalb der Bohrung oder des Grabens (5) strömungstechnisch derart miteinander verbunden sind, dass das Wärmeträgermedium mittels der Pumpe (4) von einem Einlass des ersten Strömungskanals (3a) in Richtung eines unteren Endes des Erdwärmesonde (2) bis zu einem Umkehrpunkt (6) und von dem Umkehrpunkt (6) aus in Richtung eines oberen Anfangs der Erdwärmesonde (2) bis zu einem Auslass des zweiten Strömungskanals (3b) förderbar ist, und mit einem Wärmeübertrager (7), der strömungstechnisch mit dem Einlass des ersten Strömungskanals (3a) und dem Auslass des zweiten Strömungskanals (3b) verbunden ist.Die beschriebene technische Lösung zeichnet sich dadurch aus, dass die Erdwärmesonde (2) zumindest abschnittsweise beabstandet zu einem Grund, Bett oder Sohle (9) eines Gewässers (8) unterhalb des Gewässers (8) verläu

FLUID HEATING

NºPublicación:  US2025383127A1 18/12/2025
Solicitante: 
POLYFLOW LLC [US]
Polyflow LLC

Resumen de: US2025383127A1

A method and apparatus for providing a working fluid having a desired temperature at a predetermined location are disclosed. The apparatus comprises a downhole casing disposed in a pre-drilled borehole; and at least a portion of at least one flexible pipe comprising flexible pipe body, disposed in the casing, wherein a working fluid is moveable in a first direction in an annular region, between the casing and the flexible pipe body and a bore region of the flexible pipe body, and in a further direction opposite to the first direction via the bore region.

SYSTEM AND METHOD FOR GENERATING HYDROGEN USING GEOTHERMAL ENERGY

NºPublicación:  WO2025259900A1 18/12/2025
Solicitante: 
SYNTHOLENE ENERGY CORP [US]
SYNTHOLENE ENERGY CORP
WO_2025259900_A1

Resumen de: WO2025259900A1

A system and method for generating hydrogen using thermal energy in a geothermal fluid are disclosed. An electrical power generation subsystem is configured to receive geothermal fluid from a geothermal fluid source and use thermal energy in the geothermal fluid to generate electrical power. A steam generation subsystem is configured to receive water and produce steam using thermal energy in the geothermal fluid and the electrical power generated by the electrical power generation subsystem. A hydrogen generation subsystem is configured to disassociate hydrogen from the steam using the electrical power generated by the electrical power generation subsystem.

HEAT EXCHANGER FOR A HEATING NETWORK

Nº publicación: WO2025256904A1 18/12/2025

Solicitante:

GRAF FRANZ [DE]
GRAF, Franz

WO_2025256904_A1

Resumen de: WO2025256904A1

The invention proposes a heat exchanger (20) for a heating network, in particular a cold local heating network or district heating network, comprising at least one heat transfer surface for transferring heat of a network fluid of the heating network to a building heating fluid of a building heating system of a building (7), in particular a dwelling, wherein at least one feed port (5) for the building heating fluid and at least one return port (5) for the building heating fluid are provided, said heat exchanger being improved in relation to the prior art, in particular the complexity being reduced and/or the energy efficiency and the economic efficiency being increased and/or new functionalities being realized. This is achieved according to the invention in that the heat exchanger (20) is in the form of a geothermal heat exchanger (20), wherein the geothermal heat exchanger (20) comprises at least one ground contact surface for the ground and wherein the geothermal heat exchanger (20) comprises at least one heating network receptacle (21) for receiving a heating network line (1), in particular a heating network tube (1), of the heating network, wherein the heating network receptacle (21) comprises at least the heat transfer surface.

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