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废弃矿井抽水蓄能与地热开发联合施工方法

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。

一种加热与换热外置式人工地热储能与光风联供发电系统及方法

Resumen de: CN121205863A

本发明属于光风发电的储能技术领域，提供了一种加热与换热外置式人工地热储能与光风联供发电系统及方法，系统包括：供电装置、地下水库、换热装置、安全装置以及发电装置；地下水库包括：库体钢铁骨架、钢铁墙体、外绝热材料以及库内水体；换热装置包括：电加热设备和换热器设备；本发明通过构建的地下水库、换热装置，能够实现可再生能源的高效利用与调峰发电；通过采用加热与换热外置式的设计，能够在不影响整个地下水库高温水体储能状态下，排空换热装置单元水体、关闭安全阀门，方便并安全地对电加热和换热器等维护及维修。

地热回灌水排气装置

Resumen de: CN121206723A

本发明公开了一种地热回灌水排气装置，包括箱体、加热组件、第一进气管道、第二进气管道和抽吸口，箱体的内腔具有相连通的第一室、第二室和第三室，第一室具有进水口和排气口，第三室具有出水口，回灌水经进水口流入第一室并依次经过第二室和第三室后由出水口排出；加热组件设置在第二室内，加热组件用于对第二室内的液体进行加热；第一进气管道设在第一室内；第二进气管道设在第二室内，第二进气管道用于向第二室内鼓入置换气体；第二室和第三室的顶部均设置有抽吸口，抽吸口用于与负压设备连接，以抽吸第二室和第三室内的气体并输送至第一进气管道内。本发明能够使回灌水中的气体含量大幅降低，有效的防止回灌系统中形成气堵。

GEOTHERMAL POWER GENERATION SYSTEM

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.

Carbon Dioxide Removal Systems Utilizing Solid Precipitates Formation

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.

SYSTEMS AND PROCESSES FOR STIMULATING SUBTERRANEAN GEOLOGIC FORMATIONS

Resumen de: US2025389456A1

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

GEOTHERMAL HEAT EXTRACTOR

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.

HEAT EXTRACTION METHOD FOR LIQUID DOMINATED GEOTHERMAL RESERVOIRS

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.

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

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.

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

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.

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

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

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

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

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

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

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

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。

SYSTEM AND METHOD FOR GENERATING HYDROGEN USING GEOTHERMAL ENERGY

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.

FLUID HEATING

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.

HEAT EXCHANGER FOR A HEATING NETWORK

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.

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

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

GEOTHERMAL SYSTEMS AND METHODS USING ENERGY FROM UNDERGROUND MAGMA RESERVOIRS

Resumen de: MX2025009333A

The aspects of the invention include a geothermal system obtains heated heat transfer fluid via heat transfer with an underground reservoir of magma, a wellbore extending between a surface and into the underground reservoir of magma, and a partially cased wellbore having a first borehole portion extending from a surface into an underground magma reservoir. A chamber is located within the borehole and extends at least partially into the underground reservoir of magma. An inlet conduit allows flow of heat transfer fluid from the surface and into the chamber. An outlet conduit allows.flow of heated heat transfer fluid from the chamber toward the surface. The system includes steps of providing a molten salt down a wellbore extending from a surface and into an underground reservoir of magma, receiving heated molten salt from the wellbore, and providing the heated molten salt to a heat-driven process.

一种中深层井下换热高效换热装置

Resumen de: CN121140220A

本发明提供一种中深层井下换热高效换热装置，主要涉及地热采热技术领域。一种中深层井下换热高效换热装置，包括换热外管及套设于其内部的换热内管，所述换热外管的上端一体式固定安装壳体，所述换热外管竖向贯穿换热外管的中心且与其固定连接，所述壳体的一侧固定安装有循环进液管，所述换热外管的底部设有辅助加热组件，且所述换热内管的内壁固设有扰流组件。本发明的有益效果在于：本装置通过设置扰流组件，改变液体在换热外管内的流动方向，增加湍流程度，使其在换热内管中的流动轨迹，由层流状态转变为高强度湍流状态，有效破坏管壁边界层热阻，从而大幅提升换热内管与流体之间的对流传热系数，从而提升了换热内管内液体的换热效率。

一种适用于穿越溶洞的高效换热能源桩系统

Resumen de: CN121140222A

本发明公开了一种适用于穿越溶洞的高效换热能源桩系统，涉及建筑工程技术领域，热导固定柱内侧等距开设有若干个组合导热孔，组合导热孔内侧套接有U型往复管，多个U型往复管顶端通过转接头连接有注入操作管，多个U型往复管顶端通过转接头连接有回流操作管，热导固定柱内侧开设有贯穿处理孔，热导固定柱内侧靠近组合导热孔位置处开设有热换接触腔，本发明通过内部热交换处理和地下水循环部件配合联动，实现对换热能源桩内部的热交换操作，延长换热时间和换热距离，并对换热管道进行保证，提升换热效率，同时稳定换热能源桩的温度，降低因热胀冷缩带来的老化加速的情况出现，延长换热能源桩的使用寿命。

地热井回灌系统及方法

Nº publicación: CN121140223A 16/12/2025

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

Resumen de: CN121140223A

本发明的实施例公开了一种地热井回灌系统及方法，地热井回灌系统包括曝气池、排气装置和置换气装置，所述曝气池和所述置换气装置均与所述排气装置相连接，地热水经取热后形成的回灌水储存在所述曝气池内，所述曝气池用于向所述排气装置内输送回灌水，所述置换气装置用于向所述曝气池内输送置换气。本发明实施例的地热井回灌系统通过曝气池对回灌水进行净化处理，通过排气装置进行排气，使得回灌水中的气体含量和悬浮杂物大幅降低，降低了回灌水注入回灌井内后气体的溢出量，防止回灌系统中形成气堵，并避免杂物进入回灌系统中造成回灌通路堵塞。