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METHOD FOR ENERGY STORAGE VIA SUBTERRANEAN FORMATION FRACTURES BASED ON COMPRESSED AIR AND SYSTEM THEREOF

Resumen de: US20260336938A1

The present application relates to a method for energy storage via subterranean formation fractures based on compressed air and system thereof, comprising the steps of: constructing one or more subterranean formation fractures; sealing pores and/or micro-fractures in the surrounding rock adjacent to the one or more subterranean formation fractures; verifying the air tightness of the one or more subterranean formation fractures; injecting compressed air into a target wellbore for energy storage; and releasing stored energy by reversing and discharging the compressed air. It not only accumulates potential energy from air compression but also stores stress potential energy and elastic potential energy from rock deformation while capturing geothermal energy from the formation. Most significantly, the method is not geographically restricted, enabling subsurface compressed air energy storage to be implemented in any location, thereby substantially expanding the applicability and deployment scope of compressed air energy storage technologies.

SYSTEM AND METHOD FOR THERMAL ENERGY STORAGE

Resumen de: WO2025188656A1

A system can include: a heat storage medium (e.g., soil, dirt, gley, sand, earth, bedrock, gravel, clay, silt, loam, rock, talus, scree, volcanic material, glacial debris, humus, and/or other earthen material), a heat transfer mechanism (e.g., resistive heater, inductive heater, forced air heater, forced fluid heater, etc.), and a heat output mechanism (e.g., thermoelectric device, fluid coupling, etc.). A method can include heating a heat storage medium with a heat transfer mechanism and extracting heat from the heat storage medium using a heat transfer mechanism.

APPARATUS, SYSTEM AND METHOD FOR REGULATING FLUID FLOW THROUGH A WELL SYSTEM

Resumen de: CN122514634A

Some embodiments of the present disclosure relate to an apparatus for regulating the flow of a fluid flowing through the apparatus when deployed and held within a well. The apparatus may include: a retention assembly for retaining the apparatus at a desired position within a wellbore; a mandrel having a first end and a second end, defining a longitudinal axis between the first end and the second end, the mandrel defining one or more apertures for effecting fluid communication between the mandrel interior and the mandrel exterior; and a displacement sleeve disposed nesting with the mandrel, the displacement sleeve defining one or more apertures for providing fluid communication between the displacement sleeve interior and the displacement sleeve exterior. The displacement sleeve is displaceable in response to a change in a property of a fluid flowing through the device, where displacement of the displacement sleeve changes a cross-sectional flow area of one of the one or more apertures.

HEAT EXCHANGER

Resumen de: GB2636831A

A heat exchanger 5 is disclosed for the lower end of a pipe (3, fig 1) disposed in a geothermal well bore (2, fig 1). The heat exchanger includes one or more vanes 19 arranged to cause a working fluid exiting the lower end of the pipe to return up the geothermal well bore via a helical path 22 between an outer radius of the pipe and an interior radius of the geothermal well bore. The helical path having a pitch length (P, fig 4B) and a total length (H) parallel to the geothermal well bore. A thermosiphon (1, fig 1) connected to a turbine (9, fig 1) and comprising the heat exchanger is also claimed. A method of coupling the heat exchanger to a pipe and lowering it into a geothermal well bore is also claimed. Use of the heat exchanger or thermosiphon in generation of electricity is also claimed.

一种模块化光伏或风光互补锂钠电池储能地下水间接冷却热泵空调装置

Resumen de: CN122992926A

本发明公开了一种模块化光伏/风光互补锂钠电池储能地下水间接冷却热泵空调装置，包括模块化主机框架、光伏或风光互补发电单元、锂钠混合储能单元、地下水间接换热单元、水源热泵单元、电池主动热管理单元及智能控制系统。核心创新在于：利用地下水经板式换热器形成闭式二次循环介质，该介质同时作为水源热泵换热介质和储能电池液冷介质，实现地下冷热源与新能源储能系统的一体化耦合；智能控制系统根据电池温度、热泵负荷及取回水温差，通过调节阀组分配热泵支路与电池冷却支路的流量。锂离子与钠离子电池组分别经独立双向DC/DC变换模块接入公共直流母线，规避直接并联风险。回灌井设多孔扩散器并结合温度传感器联动控制，降低热贯通风险。本发明实现新能源发电、储能调节、建筑冷热供应和电池温控一体化，具有储能性能互补、电池热管理高效、模块化快速安装、减缓热贯通等优点，适用于农村自建房等分布式场景。

一种基于半解析模型的中深层地埋管传热传质性能预测方法

Resumen de: CN122987339A

本发明公开了一种基于半解析模型的中深层地埋管传热传质性能预测方法，属于地源热泵技术领域。本发明首先输入中深层地埋管的结构参数、运行参数等，基于解析理论分析中深层地埋管管壁、回填土及岩土中的传热热阻，建立考虑工质热物性变化的工质传热传质方程，进而构建中深层地埋管半解析传热传质模型，其中，工质热物性与温度及压力有关；然后，对该半解析传热传质模型进行迭代求解，计算工质温度及压力随空间和时间的分布，进而计算中深层地埋管传热传质性能。本发明所提出的中深层地埋管传热传质性能预测方法采用了建模简便、计算耗时短的半解析模型，并考虑了工质热物性随温度及压力的变化，可用于精确高效地预测中深层地埋管传热传质性能。

一种具有双热源协同控制的双循环有机朗肯循环发电系统

Resumen de: CN122980989A

本发明涉及应用特殊工作流体或循环的发动机装置技术领域，公开一种具有双热源协同控制的双循环有机朗肯循环发电系统及方法。系统包括相互隔离且均以R245fa为工质的高温和低温闭式循环；各循环均使R245fa经工质泵加压、蒸发器吸热汽化、膨胀机膨胀做功及冷凝器冷凝后返回工质泵，并驱动发电机发电。干热岩地热流体依次向第一蒸发器和预热器供热，工业余热流体向第二蒸发器供热。控制模块根据实际发电功率调节余热进口调节阀V1，并根据预热器工质出口的温度和压力确定过冷度，在过冷度不高于阈值时增大地热旁通调节阀V2的开度，使预热器出口工质保持液相。本发明实现地热与工业余热的梯级利用，并补偿地热输入波动。

一种中深层的地热供暖机组

Resumen de: CN122981633A

本发明公开了一种中深层的地热供暖机组，涉及地热供暖技术领域，包括集水箱，所述集水箱一侧外壁固定连接有两个抽水管，两个所述抽水管外表面固定安装有深井潜水泵，所述集水箱正面固定连接有密封门，所述集水箱远离密封门一侧外壁固定连接有载物板，通过设置的伺服电机、螺纹杆、移动座驱动的清洁刮板，能够定期自动刮除箱体内壁附着的泥沙、垢层及大颗粒杂质，并推动杂质向密封门处集中处理，并配合粗过滤网、细过滤网和活性炭板多次过滤，有效拦截从大颗粒到微细矿物的各类杂质，大幅降低了地热流体在管道及换热设备内的结垢与腐蚀风险，保障了传热效率，延长了设备整体使用寿命，减少了维护频次与化学清洗剂的使用。

一种二氧化碳超临界无取水地热开采系统及方法

Resumen de: CN122981754A

本发明公开了一种二氧化碳超临界无取水地热开采系统及方法，涉及地热开采技术领域，该系统包括地热井，地热井包括连通的垂直井筒段和水平储层段，水平储层段侧壁为压裂结构；同轴连续油管换热单元贯穿铺设于地热井内，包括外层换热连续管和内层介质输送连续管；保温防护单元设置于内层介质输送连续管外壁；换热单元及二氧化碳热泵等布设于地面，通过井口环空密封结构与同轴连续油管换热单元密闭连通；地面智能控制单元能够维持二氧化碳超临界相变状态运行工况；地面热能输出单元用于将提取的地热能对外输出供能。本发明二氧化碳超临界无取水地热开采系统及方法，换热效率高、运行能耗小，且能够适配废弃油气井，以实现废弃油气井资源化复用。

CLOSED WELL LOOP FOR A GEOTHERMAL SYSTEM

Resumen de: US20260328439A1

0000 A closed well loop is provided for a geothermal system. The closed well loop includes a well (single well) that traverses a subterranean formation to extract heat from the subterranean formation. The well includes a section having an inner pipe that is supported inside an outer pipe in a pipe-in-pipe arrangement. The inner pipe has an interior flow channel that defines a first flow path for circulating working fluid, and the annulus between the inner pipe and the outer pipe defines a second flow path for the circulating working fluid. The well can be configured to extract heat from the subterranean formation and transfer heat to the circulating working fluid that flows in the first and second flow paths. The inner pipe can include a thermally-insulative piping system that reduces the amount of heat transferred from the circulating fluid that flows in the first and second flow paths within the well.

AN INTEGRATED CARBON DIOXIDE CAPTURE SYSTEM WITH GROUND AIR COOLING AND ATMOSPHERIC WATER HARVESTING

Resumen de: WO2026220346A1

The present invention relates to an integrated carbon dioxide (CO₂) capture system with ground air cooling and atmospheric water harvesting. The system comprises a modular container framework 100 housing a photobioreactor array 200 and a chemical carbon dioxide scrubber system 300. An advanced ground air cooling system 500 comprising buried tubes 501 and a sand-phase change material matrix 502 is configured to receive ambient air and reduce its temperature prior to introduction into the container framework 100. An air intake and pre-treatment assembly 600 directs ambient air to the cooling system 500, and an air discharge filtration assembly 700 facilitates air treatment. A condensate management subsystem 900 collects water condensed from the air. A control subsystem regulates airflow and operating parameters for carbon capture and water recovery. The invention also provides a method for carbon dioxide capture and water recovery using thermally conditioned air.

METHOD AND PLANT FOR THE PRODUCTION OF GEOTHERMAL ENERGY THROUGH THE INJECTION OF WATER ORIGINATING FROM A SALTWATER BASIN INTO A GEOTHERMAL RESERVOIR

Resumen de: WO2026220434A1

The present invention concerns a plant (10) for the production of geothermal energy comprising a system (100, 200a, 200b) for the injection of water originating from a saltwater basin (1) into a geothermal reservoir (15); said system comprising: a) a withdrawal unit (2) to withdraw water from a saltwater basin (1); b) one or more water pre-treatment units (3) to remove suspended solids and other dispersed substances deriving from the saltwater basin (1) and obtain pre-treated water; c) one or more pre-treated water treatment units (5) to obtain treated water, said one or more treatment units (5) being selected from the group consisting of an evaporation desalinator, a reverse osmosis unit, a nanofiltration unit, a forward osmosis (TO) unit, an electrodialysis (DE) unit, a membrane distillation (MD) unit, an adsorption desalination (AD) unit, an ion exchange desalination unit, or combinations thereof; d) an injection unit (7) to inject the treated water into the geothermal reservoir (15) of a geothermal plant. There is also provided a method for the production of geothermal energy comprising a step of injecting water originating from a saltwater basin (1) and the use of water originating from a saltwater basin (1) as an injection fluid for a geothermal reservoir (15).

GEOTHERMAL HEAT UTILIZATION SYSTEM, CONTROL DEVICE, CONTROL METHOD, AND PROGRAM

Resumen de: WO2026221050A1

This geothermal heat utilization system comprises: a first well; a pipe extending from the first well; a heat exchanger provided to the pipe; and a water quality detection unit that detects the quality of water in the pipe.

GEOTHERMAL INSTALLATION WITH CASCADED WATER VAPOUR GENERATORS FOR INDUSTRIAL INSTALLATIONS

Resumen de: WO2025125048A1

The invention relates to a geothermal installation with cascaded water vapour generators for industrial installations, comprising: (a) a geothermal source which is designed such that it provides a brine with a temperature in the range from 120 to 300 °C, (b) at least two heat exchangers (2, 3, 4) through each of which the brine can flow on their primary side, the primary side of the respective heat exchangers (2, 3, 4) being arranged in a cascaded manner with respect to its adjacent heat exchanger (2, 3, 4), wherein the respective heat exchanger (2, 3, 4) has a secondary side which is configured such that either supplied water (c1, c2, c3) evaporates as a result of the heat exchange from the primary to the secondary side, or circulating water heats up in a secondary circuit and as a result an evaporator (15, 16, 17) arranged in the secondary circuit evaporates supplied water (c1, c2, c3), (c) a first pipeline, which fluidically connects the withdrawal location (a) of the geothermal source to the cascaded primary sides of the heat exchangers (2, 3, 4), (d) each of the provided heat exchangers (2, 3, 4) has a downstream mineral withdrawal unit (12, 13, 14), (e) a first brine pump (1) which is arranged between the withdrawal location (a) and the primary side of the first heat exchanger (2) in the main flow direction, by way of which the brine is conveyed from the source to the respective cascaded primary sides of the heat exchangers (2, 3, 4) and their respective downstream min

一种散热系统和地埋管冷却装置

Resumen de: CN122943620A

本申请涉及一种散热系统和地埋管冷却装置，散热系统包括散热部件、第一管路控制阀门、第二管路控制阀门、冷却塔和地埋管冷却部件，散热部件内部循环第一冷却介质，与待散热的第二冷却介质进行隔离式热交换，冷却塔和地埋管冷却部件并联设置于散热部件，通过第一管路控制阀门和第二管路控制阀门切换第一冷却介质的流向或者混合流向，当环境温度比较高时，优先启动地埋管冷却部件对第一冷却介质进行散热，当环境温度比较低时，优先启用冷却塔对第一冷却介质进行散热，或者冷却塔和地埋管冷却部件同步对第一冷却介质进行散热，可根据具体需求切换流向，地埋管冷却部件埋设于地层预设深度，利用土地的恒温性对第一散热介质进行散热，稳定性高。

地表水余热利用装置

Resumen de: CN122943377A

本发明涉及热质交换技术领域，公开了一种地表水余热利用装置，包括：气流驱动部件、余热提取单元、余热转化单元、热泵单元，其中，气流驱动部件用于驱动空气流动以形成依次流动通过余热提取单元、余热转化单元的空气流；余热提取单元能够将地表水分散至空气流中，使地表水与空气流进行热湿交换，以将地表水的热量传递至空气流；余热转化单元包括吸湿性换热介质，吸湿性换热介质能够与空气流进行热湿交换，以吸收空气流中的热量和水蒸气；热泵单元包括蒸发器，热泵单元与余热转化单元之间形成吸湿性换热介质的第一循环回路，蒸发器串接于第一循环回路以接收吸湿性换热介质释放的热能，以在低温环境下将地表水余热提取并转化为水源热泵可用的热源。

一种地源换热管的施工方法及施工装置

Resumen de: CN122943497A

本申请涉及地源换热管施工领域，公开了一种地源换热管的施工方法及施工装置。该方法包括：完成钻孔并清孔，在孔底保留沉渣容纳段；通过孔口处的导向装置对换热管进行导向下放并矫正偏移；将孔壁自下而上划分为深部换热段和浅层隔热段；在深部换热段注入预设剂量硅基界面活化剂并配合气举扰动清孔，在浅层隔热段注入低剂量活化剂并静置浸泡；独立配制高导热灌浆料与低导热灌浆料；以第一注浆压力泵送高导热灌浆料填充沉渣段与深部换热段；当注浆至分界处时，在不停泵状态下切换抽取低导热灌浆料；以较低的第二注浆压力连续泵送低导热灌浆料，直至填满浅层隔热段。本申请实现了地源孔的分段处理与分层连续注浆。

地热对接井连通点套管组合及其完井工艺方法

Resumen de: CN122942698A

本申请涉及地热对接井技术领域，公开一种地热对接井连通点套管组合及其完井工艺方法，地热对接井连通点套管组合包括管路，以及沿第一方向上依次排布的注水泥器组件、密封组件、活盲板组件，注水泥器组件包括内管和第一固定件，第一固定件连接于内管和管路之间，密封组件包括第二固定件和活塞部件，第二固定件固定连接于活塞部件和管路之间，活盲板组件包括球座和第三固定件，第三固定件固定连接于球座和管路之间，第一固定件的剪断压力大于第二固定件的剪断压力，大于第三固定件的剪断压力；通过对第一固定件、第二固定件以及第三固定件设定不同的剪断压力，使得注水泥器组件、密封组件以及活盲板组件能够按需求先后依次启用，提高了地热对接井连通点套管组合作业的可靠性和可控性。

一种地热温泉热矿水资源综合利用系统

Resumen de: CN122940224A

本发明提供一种地热温泉热矿水资源综合利用系统，包括实现地热温泉热矿水开发处理的地热温泉综合资源开发系统，对综合开发出的地热温泉热矿水携带热能资源进行多级换热利用并回收泡浴后温泉尾水余热的热能梯级利用系统，将热能梯级利用系统取热后的温泉原水实现温泉泡浴康养功能的温泉泡浴康养系统和温泉饮吸食一水多用的温泉深度康养系统，对取热、泡浴、提矿后的温泉尾水进行处理再利用的温泉尾水再利用系统，将温泉原水或/和温泉尾水中矿物元素进行提取得到矿物产品的地热温泉水提矿系统，用于在线管理监控各系统的智慧管控平台。本申请能有效推动地热与温泉热、矿、水资源的整合融合发展，实现地热温泉热矿水资源综合利用效能效益最大化。

一种中深层地热井开采回灌系统

Resumen de: CN122943498A

本发明属于地热能开发技术领域，尤其涉及一种中深层地热井开采回灌系统，包括生产井、回灌井、设于生产井内的潜水泵、与潜水泵出口连接的换热器、以及将换热器尾水送回回灌井的回灌管路；回灌井的热储段回灌筛管沿竖向分为上、中、下三段；回灌管路上沿尾水流向依次设有旋流微泡脱气器、晶种诱导防垢反应器、精密过滤器和回灌加压泵；生产井井口与回灌井井口之间通过互馈管路连接；还包括中央控制器，中央控制器根据生产井与回灌井的温度差及采灌累计量执行热突破预测，并在预测热突破时间小于设定值时控制潜水泵与回灌加压泵停启反转、使生产井与回灌井采灌角色互换。本发明能够解决回灌易堵塞、热突破提前及能耗高的问题。

中深层地埋管群分层取热与热恢复系统及其协同调度方法

Resumen de: CN122920652A

本发明属于地热能源开发与利用技术领域，涉及中深层地埋管群分层取热与热恢复系统及其协同调度方法，系统包括不同深度的多个地埋管井；地埋管井下设有可控隔离装置用于将地埋管井在纵向上划分为至少两个可独立循环的换热段，换热段拥有相互独立的流体进出口或可通过阀门切换的流道从而实现同一口井内不同深度地层的独立取热或关断；调度方法包括年际轮换和季节性分层这两种独特的调度模式；本发明打破持续取热导致的温降趋势，优化了整个供暖季的能耗分布；同时，利用高精度数值模型和实时监测实现闭环优化，确保了系统调度的科学性和精准性。

基于双井注采结构的深部废弃油气井地热化改造系统以及人工增渗改造方法

Resumen de: CN122919353A

本发明公开了一种基于双井注采结构的深部废弃油气井地热化改造系统以及人工增渗改造方法，涉及油气田开采技术领域。所述深部废弃油气井地热化改造系统包括注入井和采出井、第一双层同轴结构和第二双层同轴结构、第一封隔器和第二封隔器、第一斜井和第二斜井、环形导热密封体，所述注入井具有位于上部的第一隔热输送段、以及与所述第一隔热输送段连接且位于下部的第一下段；所述采出井具有位于上部的第二隔热输送段、以及与所述第二隔热输送段连接且位于下部的第二下段，所述第一隔热输送段和所述第二隔热输送段自井口朝下延伸至少3000m。本发明解决了现有技术中井筒热损失严重、地下换热效率低、系统可控性差的问题。

一种区域热循环改善方法、系统及设备

Resumen de: CN122920651A

本申请属于地热开发技术领域，尤其涉及一种区域热循环改善方法、系统及设备，该方法包括：确定地热采集区域内各个地热采集点分布情况，基于分布情况将地热采集区域划分为若干目标子区域；分别布设若干传感器在目标子区域中，基于传感器实时采集实时储热状态参数和实时热负荷需求数据；基于所述实时储热状态参数和所述实时热负荷需求数据判断各个所述子区域的热循环失衡风险等级；基于风险判断结果生成动态调整指令；执行所述动态调整指令，持续监测调整后的目标子区域，基于监测结果调整子区域划分结果，或，调整所述动态调整指令。本申请提高了地热资源利用效率。

一种地热储层防堵与储能协同系统及控制方法

Resumen de: CN122920657A

一种地热储层防堵与储能协同系统及控制方法，其包括：绿电供能单元；储热单元，其具有电加热模块，电加热模块与绿电供能单元电连接，使绿电供能单元为电加热模块供能，电加热模块用于加热储热单元内回灌水；回灌单元，其连接于储热单元，回灌单元用于将储热单元输出的回灌水输送至注入井实施回灌。通过利用绿电供能单元为电加热模块供能，使储热单元内回灌水在输入注入井前能达到较高温度，从而减小进入注入井中的回灌水与热储之间的温差，降低因温度骤变诱发的二氧化硅析出、黏土矿物水化膨胀及微粒运移等堵塞风险，解决了相关技术中采用化学除垢存在药剂消耗大、地层污染风险高且对硅质垢作用有限等问题；物理法则维护成本较高的技术问题。

用于软土层的硫磺渣基相变储能骨料、混凝土及能源桩

Nº publicación: CN122916491A 16/10/2026

Solicitante:

韶关学院

Resumen de: CN122916491A

本发明涉及低碳相变建筑材料技术领域，尤其是涉及一种用于软土层的硫磺渣基相变储能骨料、混凝土及能源桩，包括硫磺渣骨架、填充于硫磺渣骨架孔隙中的相变材料、以及包覆于硫磺渣骨架外表面的功能层；所述硫磺渣骨架经破碎筛分得到；所述硫磺渣中含有赤铁矿和磁铁矿，赤铁矿的质量分数为15%‑20%，磁铁矿的质量分数为3%‑5%，粒径为5‑25mm；显著提升了软土层能源桩的换热效率、结构稳定性和长期耐久性。