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139
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Updated on
15/07/2026 [07:23:00]
Absstract of: 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
Absstract of: CN122359028A
本发明涉及回灌技术领域，具体为一种提高砂岩热储地热井回灌量的方法，包括以下步骤：采集砂岩孔隙与渗透参数，计算孔隙连通比值，分析颗粒变形与渗流阻力关系，确定孔隙再生区间，校正回灌流量系数。本发明中，通过对砂岩孔隙结构的多参数定量分析，建立孔隙连通比值与颗粒应力变形率的关联模型，使孔隙变化与渗流阻力形成动态对应关系，采用流速、黏度与压力梯度耦合修正渗透系数，实现渗流阻力的实时计算，识别孔隙再生区间并确定最优渗流通道，通过回灌压力与流速线性拟合结合流体密度修正动态校正回灌流量，维持储层稳定与渗流均衡，实现砂岩孔隙演化、应力变形与渗流特征的联动优化，提高流体注入过程的可控性与能效利用率。
Absstract of: CN122359932A
本发明公开了一种深部高地温隧道围岩梯级取热‑自驱动制冷协同系统及监测评价方法，系统包括主承载锚杆、取热支护构件、能量转换、监测及控制单元；主承载锚杆与热管承载锚杆协同布设形成支护–取热一体化结构，分布式光纤温度与应力传感器实时计算温度变化量及热应力增量，构建安全系数评价模型；控制单元依据热–力稳定性分级及隧道环境参数，自适应切换制冷降温或发电储能模式，并在危险状态下阶梯降低取热速率；本发明实现了地热能梯级高效利用与主动降温，并通过对取热过程的热–力耦合监测与智能调控，有效防止取热诱发围岩失稳，显著提升深部高地温隧道施工运营安全及能源综合利用效率。
Absstract of: CN122359929A
本发明公开了一种闭坑矿山地热能跨季节储能的利用方法，属于矿山地热能利用技术领域。该方法包括：在闭坑矿山中选择深度差≥150m、原始温差≥5℃且存在天然水力联系的上下两层采掘空间，分别作为冷能储层与热能储层；设置可控连通阀、监测井网及地表储能池，构建能量路由中枢；冬季从热能储层取热供暖后，经能量路由决策将水体以4~12℃注入冷能储层，控制流速0.05~0.3m/s使围岩降温至8~15℃，利用水头压力差实现自然循环；夏季从冷能储层取冷供冷后，经能量路由决策将水体以28~45℃注入热能储层，使围岩升温至30~50℃，实现反向自然循环；通过水量平衡指数B控制在‑5%~+5%、水质阈值控制及围岩温度场反演实现动态调控。本发明利用围岩热惯性实现跨季节储能，降低系统能耗30%以上，避免水质劣化，显著提升地热能综合利用效率。
Absstract of: CN122359696A
本发明提供一种蒸汽发生系统及蒸汽发生方法，涉及蒸汽发生技术领域，包括：燃气锅炉；工质水输入管路，与燃气锅炉的进水口连接，工质水输入管路依次连接第一换热装置和第二换热装置，第一换热装置与地热能取热装置连接，第二换热装置与太阳能取热装置连接；烟气输出管路，与燃气锅炉的出烟口连接，烟气输出管路依次连接第三换热装置和第四换热装置，第三换热装置和第四换热装置与LNG管路和天然气管路连接，能够加热LNG形成天然气，天然气管路与燃气锅炉的燃气入口连接；解决现有技术中蒸汽生产主要依赖于热电联产，能耗高的问题。
Absstract of: CN122359928A
本发明公开了一种地热井井筒强制扰流对流换热装置及换热井井筒，换热装置包括筒体，所述筒体外壁或/和内壁阵列设置折流板组扰流单元；所述折流板组扰流单元包括正斜导流板、反斜导流板；所述正斜导流板、反斜导流板的倾斜角度相反；所述正斜导流板的延长线穿过反斜导流板；所述正斜导流板、反斜导流板之间设置过流间距。本发明通过折流板组扰流单元进行流体扰流，可大幅提高地热井的换热效率。
Absstract of: CN122359784A
本发明提供一种基于地热水梯级利用的热电氦多联产系统及方法，系统包括：依次连通的地热开采预处理单元、热能梯级利用单元、水溶氦气提纯与压储单元、尾水回灌单元以及阀门调控单元，所述阀门调控单元按功能匹配各单元设阀组。根据本发明通过将地热开采预处理单元、热能梯级利用单元、水溶氦气提纯与压储单元及尾水回灌单元依次连通，实现地热水梯级利用与水溶氦气提取的协同运行；通过设置按功能匹配的阀门调控单元及系统连锁控制逻辑，为各工艺单元提供针对性的调控结构，实现工艺参数的精准调控和工况的灵活切换，并为后续设备在线检修及氦气提纯循环回用提供结构基础，提升系统整体的运行稳定性，提高地热资源和水溶氦气资源的综合利用效率。
Absstract of: CN122360212A
本发明公开了一种基于拓扑优化的中深层套管式地埋管换热器，包括外管，所述外管的内部底壁中心处活动连接有内管，所述内管上连通有进水管，所述进水管用于将水流输送到内管的内部，所述内管的外壁面固定连接有多个内Y形导热翅片，每个所述内Y形导热翅片呈“Y”状，所述外管、所述内管与所述内Y形导热翅片之间形成有回流腔，Y型翅片可在回流腔内强化扰流对流换热，也可在外管外壁扩大换热面积，兼顾管内与管外换热，同时沿埋深分区布置翅片能匹配不同地层换热潜力，在提升地热提取利用率的同时降低施工与材料成本，且翅片经拓扑优化兼顾换热面积与流阻控制，整体压降小、泵耗低，结构更适配中深层地热井的高效稳定换热需求。
Absstract of: US20260194263A1
0000 A system and method of harvesting geothermal energy in a subterranean formation includes providing an injection wellbore that extends into the subterranean formation, positioning a plurality of selectively opening sleeves in the injection wellbore spaced apart the subterranean formation, providing at least one producing wellbore that extends into the subterranean formation in a predetermined location proximate to the injection wellbore, and fracturing the subterranean formation in a plurality of locations proximate to the plurality of selectively opening sleeves to enhance a fluid pathway between the injection wellbore and the at least one producing wellbore. Fluid is injected down the injection wellbore at a first temperature, and the fluid is produced from the at least one producing wellbore at a second temperature higher than said first temperature.
Absstract of: US20260193938A1
The disclosure describes a well which extends into a subterranean formation, such as a geothermal formation. The well comprises a wellbore having a portion having a first non-circular cross section, and a casing having a non-circular cross section. The casing is installed within the portion of the wellbore having a non-circular cross section. The well may be an injection well or an extraction well or both. One or more of the injection and extraction wells may be used as a system for heating a fluid and extracting the fluid as a heated fluid. The heated fluid may be used, for example, as an energy source to generate electricity.
Absstract of: WO2025046518A1
A method includes determining a specified demand as a function of time of thermal energy from a heat exchanger of a heat pump. The heat pump is configured to transfer thermal energy to the heat exchanger from a geothermal working fluid circulating in a closed-loop geothermal well. The closed-loop geothermal well includes a first surface wellbore extending from a terranean surface to a geothermal subterranean zone, a second surface wellbore extending from the terranean surface to the geothermal subterranean zone, and plurality of connecting wellbores connecting the first surface wellbore to the second surface wellbore The heat output from the heat exchanger is controlled to meet a specified demand by adjusting at least one of a flow rate or inlet temperature of the geothermal working fluid in the closed-loop geothermal well.
Absstract of: WO2025043287A1
A geothermal electrolysis system including a salt water intake to receive salt water from a salt water source, one or more geothermal wells to heat the salt water to produce heated salt water, a desalination plant including one or more desalination chambers for separating salt from the heated salt water to produce at least some fresh water, an electrolysis plant connected to the desalination plant and receiving a salt brine by-product from the desalination plant, wherein the electrolysis plant is configured to electrolyse the salt brine by-product to create electrolysed water, and one or more discharge outlets to discharge and store one or more of the products of the electrolysis system.
Absstract of: CN122345277A
本发明属于地热开发技术领域，具体地，涉及一种地热能使用方法及地热能联产系统。地热能使用方法利用两个废弃井建立循环管路，使第一循环工质在所述循环管路内循环流动，所述循环管路经过地下的高温热储层和地上的换热机构。
Absstract of: CN122345273A
本发明提供一种井下换热系统及井下换热工艺，涉及井下换热技术领域，包括：换热井，换热井由上至下贯穿非热储层和热储层，换热井内设置有套管，井壁设置有过流通道；扰流系统和换热系统，扰流系统和换热系统由下至上依次设置在换热井内，扰流系统包括抽取管、扰流泵和第一固定部件，抽取管的下端处于热储层范围内，扰流泵的抽取端与抽取管连接，扰流泵通过第一固定部件与套管连接，且第一固定部件开设有第一过流孔，扰流泵的输出端处于第一固定部件的上方，扰流泵用于抽取地热水，换热系统的下端浸泡在地热水内；解决现有技术中的井下换热技术难以快速恢复，使用过程中降温速度快，热补偿速度慢，难以满足大面积供暖要求的问题。
Absstract of: CN122345274A
本发明提供一种井下换热器、井下换热系统及井下换热工艺，涉及井下换热技术领域，包括：换热管，换热管的下端封闭，换热管的内部设置有沿换热管的轴向延伸的隔板，隔板将换热管分隔成第一腔室和第二腔室，且第一腔室和第二腔室的下端相连通，第一腔室和第二腔室的上端分别用于注入循环换热介质和用于流出循环换热介质；换热管包括由下至上依次设置的取热段和非取热段，取热段和非取热段分别对应换热井的热水段和非热水段，热水段处于换热井完井后的静水位以下；降低井下换热器内部材料的体积占比，增加循环换热介质的过流面积，为循环换热介质释放出更多的空间，同时由于内部体积扩大，同等泵压条件下，循环流体流速增加，使得总取热量增加。
Absstract of: CN122345276A
本发明公开了一种地热开发用螺旋的换热装置、换热结构及施工方法，涉及地热开发的技术领域，换热装置上螺旋外管组件包括若干个螺旋外管单元，通过若干个适配地层地热条件与深度压力工况的螺旋外管单元组装形成本申请的螺旋外管组件，使得螺旋外管组件能够适配中深层地热条件与深度压力工况，在螺旋外管组件能够适配中深层地热条件与深度压力工况的基础上、与内管、锥形流体转向单元协同实现整个换热装置自适应换热功能，也就使得整个换热装置能够适配中深层地热条件与深度压力工况，实现螺旋外管组件“一地一策”的自适应匹配，适配范围更广，解决了现有的地热换热器无法适配中深层地热条件与深度压力工况的技术问题。
Absstract of: CN122345275A
本发明提供一种换热井、换热井的施工方法及换热井的取热方法，涉及换热井技术领域，包括：井筒，井筒由上至下依次贯穿非热储层和热储层，井筒最后一级套管的内部有沿套管轴向延伸的隔板，将井筒分隔成第一腔室和第二腔室，且第一腔室和第二腔室的下端相连通；井筒非热储层段采用保温水泥固井，热储层段采用导热水泥固井，井底留有导热性水泥塞；提供一种新型的换热井，该换热井结构简单，换热效果好，并且易于施工。
Absstract of: CN122345272A
本发明公开了一种在面积受限的方形地面上环形布置的热井及其构筑方法，属于一般建筑物构造领域，解决了如何在地表面积受限的方形地表面上，构建出能显著提升U型换热器出力能力的热井阵列的问题；在方向地块（1）中设置有半球形凹坑（2），在中心积水井（3）外侧的半球形凹坑（2）的球面形凹坑底上的第一同心圆周（11）上等间隔弧度地设置有四个第一圈斜井（4），四个第一圈斜井（4）的中心轴线均汇聚在半球形凹坑（2）的球中心点上，每个第一圈斜井（4）的中心轴线与通过半球形凹坑（2）的球中心点的竖直垂线（13）的夹角均为15度；四个第一圈斜井（4）的井底（4‑2）和八个第二圈斜井（5）组成一个圆锥状阵列热井。
Absstract of: US2024401450A1
0000 Methods and systems are provided for extracting thermal energy from a conventional geothermal reservoir. One aspect involves drilling or accessing a production well that intersects the conventional geothermal reservoir, and detonating at least one linear shaped charge to enlarge or open a naturally-occurring fracture of the conventional geothermal reservoir at the intersection of the naturally-occurring fracture and the production well, which reduces pressures loss of fluid flow into the production well from the naturally-occurring fracture. The reduction in pressure loss can increase fluid flow into the production well to increase the amount of captured heat. The detonation of the linear shaped charge(s) can increase aperture size of at least one naturally-occurring fracture at a wellbore surface.
Absstract of: CN122328209A
本发明公开了一种深部人工储层二氧化碳封存与采热协同方法及系统，属于CCUS与煤矿绿色开采领域。该方法包括：采用“粗‑中‑细”三段式级配煤矸石分段充填，沿注液端至抽采端构建非均质人造储层；利用换热降温后的深部矿井水溶解CO2制备低温富碳流体；从注液端以重力自驱及脉冲振荡方式注入人造储层；利用深部地热激发流体与煤矸石原位矿化生成碳酸盐，实现CO2永久封存，同时流体被加热升温；在抽采端收集脱碳高温矿井水，提取热能后循环使用；根据枯竭阈值智能切换充填区域。本发明具有零外源淡水消耗、超低注入能耗、煤基固废高值化利用及全生命周期碳足迹显著降低的优点。
Absstract of: CN122327720A
本发明公开了一种基于菌种活性调控的边坡生物矿化加固系统和方法，属于边坡工程技术领域，系统包括热调控模块和注浆模块；热调控模块包括能源桩单元、改性土工格栅单元和热泵单元；能源桩单元包括若干能源桩；能源桩包括埋于边坡中的桩体和设于桩体内的换热埋管；换热埋管通过内部流通的桩端换热工质与土体恒温层换热；改性土工格栅单元包括热调控格栅；热调控格栅为格栅状管道结构，埋于边坡表层，通过内部流通的格栅端换热工质与土体表层换热；桩端换热工质通过热泵单元与格栅端换热工质换热，且热泵单元能够将低品位地源热能转换为高品位热能；注浆模块用于向土体内依次喷洒菌液和胶结液。本发明具有稳定等优点。
Absstract of: CN122328890A
本发明公开了一种太阳能地热混合利用的储能蓄热罐，涉及储能设备领域，包括：保温箱，底部设置有底座，保温箱内部用于盛放液体；储能机构，设置在保温箱内，储能结构的底部延伸至底座中，储能机构包括加热组件和控制组件，加热组件中包括导热座和沿竖直方向活动设置的吸热座，导热座设置在保温箱的顶部，导热座用于接收热能，当导热座与吸热座贴合时，吸热座能够对液体进行加热，控制组件包括移动架和电磁铁，移动架通过滑动管与吸热座连接，移动架上设置有气囊，当电磁铁通电时，电磁铁能够吸附移动架向下运动，使导热座与吸热座分离；该储能蓄热罐能够改善对热量的收集效率较差，热能难以快速收集在水箱的内部，影响热量的储存效果的问题。
Absstract of: CN122329073A
本发明涉及新能源综合利用技术领域，具体为用于水体环境的地热光伏混合发电系统，包括：浮式平台，设置于浮式平台上方的支撑板，设置于支撑板上的支撑架，以及安装于支撑架上的光伏板；浮式平台下方设置有检修舱体，检修舱体的一侧开设检修口，检修口处设置有可开启的检修盖；检修盖与检修口之间设置密封圈；检修舱体内部设置导向滑轨，检修舱体内设有可沿导向滑轨抽拉移动的盘管框架，盘管框架上设置换热盘管；检修舱体的另一侧设置第二安装板，第二安装板上设置接头管，接头管与供水管及回水管连通，供水管与回水管用于与地热换热回路连通；其中，检修舱体上设置冲洗接口，冲洗接口与检修舱体内部连通。
Absstract of: CN122328307A
本公开是关于一种基于地热与有机朗肯循环耦合储能的发电系统。其中，系统包括地热模块、有机朗肯循环ORC发电模块、热泵储能模块、换热模块和机组热机模块，其中：地热模块通过第一换热器与ORC发电模块连接；ORC发电模块的输出端与热泵储能模块的输入端连接；ORC发电模块用于为热泵储能模块输入电能；热泵储能模块通过低温换热器与地热模块连接；热泵储能模块通过换热模块与机组热机模块连接；机组热机模块用于利用换热模块将热泵储能模块的热量转化为电能。本方案提升了地热的收集效果和利用率。
Nº publicación: CN122328083A 03/07/2026
Applicant:
青岛理工大学
Absstract of: CN122328083A
本发明属于地热能开发及CO2资源化利用技术领域，提供了一种单井超临界CO2原位循环压裂与换热系统及方法，通过在水平井储层段设置可膨胀分级螺旋毛细管换热结构，进水通道采用分级套接伸缩结构，在井下通过水压逐级伸出并卡扣锁定，使各级通道沿井筒轴向形成分段分布；与之连通的柔性螺旋毛细换热管在束缚解除后依靠弹性径向展开并贴附井壁及近井岩体，形成沿井筒轴向与径向同时延伸的螺旋状立体换热网络。该结构在下井阶段外径小、可整体入井，在井下展开后可大幅增加井周有效换热界面，实现“入井紧凑—井下展开—长期贴附运行”的结构转变。该结构能够显著扩大井下换热面积、延长传热路径并提高井周岩体动用体积，减少局部高渗通道造成的热短路现象。
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