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双流道无杆井筒取热防堵系统及方法

Resumen de: CN122812584A

本发明涉及油气田井筒温控防堵技术领域，特别涉及一种双流道无杆井筒取热防堵系统及方法。井下同轴换热管柱的上端通过井口密封切换总成连接地面集成调控系统，下端连接底部气液分流器；井下同轴换热管柱采用外换热管和中心内管组成，中心内管的下部通过下循环过流孔与外换热管连通，中心内管的上部通过上循环过流孔与外换热管连通。有益效果是：本发明通过井下同轴换热管柱和井口密封切换总成实现了无抽油杆、无井下泵的自喷井、电潜泵井、气井及水平井等的重力自循环取热防堵功能，另外，通过在地面安装空气源热泵和电辅助加热储罐，实现了强制循环模式；解决了井筒防堵、管线伴热及工农采暖等多场景供热需求，实现地层余热多场景应用。

PRESSURE AND TEMPERATURE RECOVERY SYSTEMS FOR GEOTHERMAL POWER PLANTS

Resumen de: US20260286940A1

A geothermal power system includes a pressure exchanger fluidically coupled to a heat exchanger. A first fluid enters the pressure exchanger at a first inlet, and flows in a first fluid path to a first outlet. The first fluid flows from the first outlet to the heat exchanger. The first fluid heats a second fluid at the heat exchanger. The first fluid flows from the heat exchanger to a second inlet of the pressure exchanger. The first fluid enters the pressure exchanger at the second inlet, and flows in a second fluid path to a second outlet. A pressure of the first fluid reduces as the first fluid transits through the pressure exchanger along the first fluid path. A pressure of the first fluid increases as the first fluid transits through the pressure exchanger along the second fluid path.

METHOD AND SYSTEMS FOR CYCLING A GEOTHERMAL WELL

Resumen de: US20260286819A1

A well is completed in a subterranean formation with first and second fractures. Geothermal fluid flows into the well via the first fracture while flow into the well via the second fracture is prevented. Geothermal fluid flows into the well via the second fracture while flow into the well via the first fracture Is prevented. Fluidic access in the well to the first and second fractures is closed off. Then the well is recompleted on the subterranean formation by creating third and fourth fractures in the subterranean formation. The first, second, third, and fourth fractures are discrete from each other. Geothermal fluid flows into the well via the third fracture while flow into the well via the first, second, and fourth fractures is prevented. Geothermal fluid flows into the well via the fourth fracture while flow Into the well via the first, second, and third fractures is prevented.

NON-CONDENSABLE GAS REINJECTION SYSTEM

Resumen de: US20260287212A1

A non-condensable gas reinjection system is provided for use in a geothermal power plant including a gas-liquid separator configured to separate geothermal fluid obtained from a production well into a first gas and a first liquid, an evaporator configured to exchange heat between the first gas and a working fluid, a turbine configured to be rotated by the working fluid discharged from the evaporator, and a condenser configured to cool the working fluid that has rotated the turbine and to condense the working fluid into a liquid. The non-condensable gas reinjection system includes: a pump configured to pressurize a third liquid to be sent to a reinjection well; and an ejector configured to be driven by the third liquid, suction a non-condensable gas contained in the first gas and remaining uncondensed in the evaporator, and discharge a fourth liquid in which the third liquid and the non-condensable gas are mixed.

PONDLESS HYDROMECHANICAL STORAGE SYSTEM

Resumen de: US20260286941A1

A first fluid is produced from a first subterranean formation, and the fluid is used to generate electricity and/or heat a second fluid. The first fluid is injected into a second subterranean formation that is different from the first subterranean formation. The first fluid is transferred from the second subterranean formation to the first subterranean formation. In some implementations, the first fluid is produced from the first subterranean formation at a first zone of a well, and is injected into the second subterranean formation at a second zone of the well. In some implementations, the generation of electricity using the first fluid is performed with an electrical submersible generator installed in the well. In some implementations, the transfer of the first fluid from the second subterranean formation to the first subterranean formation is performed using the electrical submersible generator as a pump.

SYSTEM AND METHOD OF MONITORING SUBTERRANEAN RESERVOIRS

Resumen de: US20260286836A1

0000 The invention provides a system and method for monitoring a subterranean formation. The method comprises injecting injection fluid into the at least one injection well wherein the at least one injection well is in fluid communication with the subterranean formation. The method comprises injecting or releasing at least one tracer into the at least one injection well and taking at least one sample from fluid produced from the subterranean formation. The method comprises measuring a concentration of the at least one tracer in the at least one sample and based on the measured concentration of the at least one tracer monitoring at least one characteristic of the subterranean formation.

Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing Same

Resumen de: US20260287213A1

The present disclosure describes a system and a method for generating energy from geothermal sources. The system includes an injection well and a production well extending underground into a rock formation, a first lateral section connected to the injection well and a second lateral section connected to the production well, the first and second lateral sections connected with a multilateral connector, defining a pressure-tested downhole well loop within the rock formation and in a heat transfer arrangement therewith. The downhole well loop cased in steel and cemented in place within the rock formation. The downhole well loop to receive working fluid capable of undergoing phase change between liquid and gas within the downhole well loop as a result of heat transferred from the rock formation. The system also includes a pump to circulate working fluid, a turbine system to convert the flow of working fluid into electricity, and a cooler.

SYSTEM AND METHOD OF MONITORING HIGH TEMPERATURE GEOTHERMAL SYSTEMS

Resumen de: US20260286837A1

0000 The invention provides a system and method for monitoring a supercritical geothermal reservoir. The method comprises injecting an injection fluid and at least one tracer into the geothermal reservoir. The method comprises taking at least one sample of supercritical fluid produced from the geothermal reservoir and measuring a concentration of the at least one tracer in the at least one sample. The method comprises monitoring at least one characteristic of the supercritical geothermal reservoir based on measured concentration of the at least one tracer.

DRILLING A MULTILATERAL CLOSED-LOOP GEOTHERMAL WELL

Resumen de: US20260286781A1

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.

一种高适配的中深层地热热泵系统

Resumen de: CN122792795A

本发明涉及地热热泵技术领域，公开了一种高适配的中深层地热热泵系统，包括蓄水箱箱体、循环泵和输送管道，循环泵的出液端与室外地能换热系统的进液端连通，输送管道的进液端与室外地能换热系统的出液端连通，蓄水箱箱体的内部转动安装有换热机构，换热机构包括螺旋管，螺旋管的两端均一体成型有直管，其中一个直管的一端与输送管道转动连接，本发明通过矩形块内侧的环形凸条刮除螺旋管外壁上的水垢，在不停机的情况下自动刮除螺旋管管壁表面的水垢，清除水垢之后，吸收了地热的换热液体通过螺旋管将热量传递到蓄水箱箱体内的水分中，能够避免因水垢导致的换热效率降低，大幅度提升了地热的利用效率。

Heat source supply device and method for heat pump using a rainwater tank

Resumen de: KR20260139464A

유출 지하수를 저장하고 외부로 배출하는 집수정의 유출수를 겨울에 우수조에 저장하고, 이를 히트펌프의 열원으로 사용하도록 함으로써, 유출수 배출 비용을 절감하고 히트펌프의 열원 공급이 용이하도록 한 우수조를 이용한 히트펌프의 열원공급장치 및 방법에 관한 것으로서, 유출지하수를 집수한 후 유출수로 배출하는 복수의 집수정, 복수의 집수정에서 배출되는 유출수를 특정 기간에만 집수한 후, 순환매체의 열교환을 위한 열원으로 공급해주는 우수조, 우수조를 통해 공급된 열원으로 순환매체를 열교환하는 열교환기, 열교환기 및 냉난방 유닛과 순환매체가 흐르는 순환라인으로 연결되어 폐루프를 형성하며, 상기 냉난방 유닛으로 냉방 또는 난방용의 순환수를 공급하도록 축열 또는 축냉 동작을 수행하는 히트펌프, 및 우수조와 열교환기 및 히트펌프의 동작을 제어하는 제어부를 포함하여, 우수조를 이용한 히트펌프의 열원공급장치를 구현한다.

基于中深层地热梯级利用的综合能源系统分级供能方法

Resumen de: CN122792720A

本发明公开了基于中深层地热梯级利用的综合能源系统分级供能方法，属于综合能源系统协同供能与地热能利用技术领域。该方法包括采集中深层地热侧、负荷侧及设备侧运行参数；根据不同用能对象的供热温度需求对热负荷进行温度等级划分；根据深层地热侧运行参数对地热热能品位进行判定；按照高品位热能优先供给高温热负荷、中品位热能供给中温热负荷、低品位热能供给低温热负荷或热泵蒸发侧的顺序确定梯级供能路径；当地热供能不足或与热负荷需求不匹配时，协调热泵、蓄热装置及辅助热源参与补偿供能；实时对供能路径和热量分配方式进行动态调整。本发明能实现中深层地热热能的分级分配与梯级利用，提高地热资源综合利用效率，降低辅助热源能耗。

相变蓄热支撑剂协同CO2热压振荡的井下采热方法及系统

Resumen de: CN122792089A

本发明公开了一种相变蓄热支撑剂协同CO2热压振荡的井下采热方法及系统，涉及井下余热回收技术领域，步骤如下：将目标井段划分为近井热冲击缓冲区、主裂隙强化换热区和远端热量动用区；按区域配置不同相变温度的相变蓄热支撑剂；利用CO2携带支撑剂分级注入目标井段裂隙，形成分布式蓄热导流网络；利用该网络调控CO2热压振荡和换热，达到预设导流能力后，CO2作为换热介质回收目标井段余热并输送至地面利用；本发明可将井周裂隙网络转化为可调控的分布式蓄热换热网络，适用于高温油气井余热利用、废弃井再利用和深部井筒热能回收等场景。

一种土壤分层-渗流介质中跨季节储热传热模型及调控方法

Resumen de: CN122799709A

本发明属于地热能利用与地源热泵技术领域，特别涉及一种土壤分层‑渗流介质中跨季节储热传热模型及调控方法。该模型包括双U型地埋管换热器、钻孔回填材料区域和周围土壤层；周围土壤层自上而下分为粉土层、细砂层、砾石层和碎石亚黏土层，并按渗流特征分为包气带、渗流层和隔水层。本发明建立考虑地质分层与渗流分层的三维全尺寸多物理场耦合模型，获取研究区域地下水渗流速度，并与临界速度阈值比较：当渗流速度低于阈值时采用低温、长时蓄热模式，高于阈值时采用高温、短时蓄热模式，本发明能够真实反映分层土壤物性差异与地下水渗流对地埋管换热性能及温度场的耦合影响，显著提升跨季节储热系统的预测精度、换热效率与运行稳定性。

一种深井同井回灌换热系统及其运行方法

Resumen de: CN122792796A

本发明公开一种深井同井回灌换热系统及其运行方法，涉及地下水源热泵机组与地埋管换热技术领域，其中，所述井体深度为200m，所述井体采用339mm的石油套管构建井体框架；所述井体沿深度方向自上而下依次分为上部抽水段、中部封隔段和下部排水段；所述连接管路包括出水管路和回水管路；所述潜水泵设置在上部抽水段内，所述潜水泵的输出端通过出水管路与水源热泵机组相连接；所述水源热泵机组的出水口通过回水管路连接至所述井体的下部排水段；采用“上部抽水、下部回灌”结构，天然利用了重力与密度差，低温回灌水自然向下渗透，与上部抽水段方向一致，配合双封闭器实现三重隔离，彻底解决了传统结构冷热混合的问题。

一种可重构裂隙网络的干热岩裂缝导流换热实验装置

Resumen de: CN122775696A

本发明属于干热岩地热开发技术领域，提供一种可重构裂隙网络的干热岩裂缝导流换热实验装置，包括反应釜、工质流体注入部件、可重构裂隙实验模型、检测部件及数据采集和控制系统，可重构裂隙实验模型位于反应釜内，可重构裂隙实验模型包括实验外壳和若干个裂缝开度调控部件，若干个方形的岩样相互拼接为裂隙网络模型，裂隙网络模型位于实验外壳内，裂缝开度调控部件位于相邻两个岩样之间，实验外壳和工质流体注入部件连通，检测部件包括若干个测温光纤，测温光纤位于相邻两个岩样之间数据采集和控制系统，分别与工质流体注入部件、若干个测温光纤及裂缝开度调控部件通信连接。本发明能够灵活调整裂隙网络结构、模拟真实条件下裂隙的动态演化。

一种分层裂隙水平井增强型地热系统取热性能预测方法及系统

Resumen de: CN122778944A

本发明公开了一种分层裂隙水平井增强型地热系统取热性能预测方法及系统，该方法包括：构建分层裂隙水平井增强型地热系统的热‑水‑力多场耦合地质力学模型；基于所述模型建立参数化建模方法，生成多组数值模拟工况并求解，形成多工况模拟样本数据库；基于所述样本数据库构建包含第一预测子模型和第二预测子模型的智能预测模型，所述第一预测子模型采用双层异构集成学习架构预测热突破时间，所述第二预测子模型采用深度时序学习模型预测采出温度。本发明通过结合热‑水‑力耦合数值模拟与机器学习进行混合预测，在保证预测精度的同时显著提升计算效率。

一种垂直钻孔管群逐时换热仿真及土壤温度场动态计算方法

Resumen de: CN122778651A

本发明涉及一种垂直钻孔管群逐时换热仿真及土壤温度场动态计算方法，包括：根据钻孔结构采用分段有限线源模型计算标准节点‑标准钻孔温度响应系数，结合插值算法计算壁面节点与各钻孔分段的温度响应系数；将地表逐时温度进行傅里叶变换并计算土壤初始温度，对各钻孔分别建立能量控制方程组并迭代计算逐时热流；基于土壤温度解析表达式计算任意位置逐时温度，并进一步实现蓄热区域内任意平面逐时温度场、蓄热体逐时平均温度等计算和输出；本发明考虑了管群中不同位置换热差异和地表温度的非稳态边界条件，使用土壤温度的解析计算方法避免了复杂的数值计算，并通过温度响应系数插值和热流聚合降低了计算量，提升了计算效率。

地热与含水层储能耦合系统的运行优化方法

Resumen de: CN122774698A

本发明涉及一种地热与含水层储能耦合系统的运行优化方法，包括：以系统全周期运行总能耗最小化为目标函数，构建系统数学模型；数学模型的约束空间通过系统能量守恒和水力平衡方程定义优化可行域；采用分散式差分进化算法对数学模型进行动态寻优求解，获得系统级优化的设备功率设定值与流量分配方案；按滚动时域循环执行预设的控制策略，进行系统的低温冷源调用，结合对目标函数的寻优求解结果，对储能供应模式及设备运行参数进行控制，并基于控制结果对数学模型进行在线动态寻优。本发明通过将复杂的全域优化问题解耦为基于子系统的局部优化与全局协同，解决了传统集中式控制存在的调节延迟高、计算负担重以及可扩展性差的问题。

井洞蓄能体直接空气循环式零压缩机制热制冷系统

Resumen de: CN122774672A

本发明公开了一种井洞蓄能体直接空气循环式零压缩机制热制冷系统，属于室内温度调节技术领域。该系统包括至少一根内管以及外管或井壁，内管设置于井或洞内部并与室内连通，外管或井壁与内管之间形成气流通道；还至少包括一台增压风机，风机设置于气流通路的入口、出口或管道中间。通过风机向内管或外管吹风或抽风，使空气在井或洞与室内之间循环流动，利用井或洞内与地面的温差调节室内温度。内管可为一根、两根或多根，管壁可设通气孔，下端可浸入地下水。本发明无需压缩机、水泵、散热器或冷媒，仅依靠风机驱动空气循环，结构极简，能耗相比传统空调降低95%以上，冬夏两用，安装维护方便，具有显著的节能环保效益。

超临界二氧化碳循环与深层地热储层耦合的综合能源系统及运行方法

Resumen de: CN122774263A

本发明公开了一种超临界二氧化碳循环与深层地热储层耦合的综合能源系统及运行方法，该系统包括超临界二氧化碳循环系统、深层地热系统及供热系统，通过设置各调节阀实现工质在地面循环系统与深层地热储层之间的耦合调节。在电网负荷稳定时，系统运行再压缩超临界二氧化碳循环发电；在降负荷时，部分工质注入深层地热储层实现地下调蓄并降低循环负荷；在升负荷时，储存工质回采发电并补充至循环系统，从而实现快速升负荷；在地面循环系统停运或低负荷时，切换为地热独立发电模式；同时，各工况下均可通过预冷器回收余热为用户供热，并通过透平旁路调节实现发电与供热的协调优化。本发明利用深层地热储层兼具工质储存与换热的双重功能，提高系统调峰能力、运行灵活性及综合能源利用效率。

一种协同生物质气化发电、CO2封存的废弃井钙基储能系统

Resumen de: CN122774614A

本申请公开了一种协同生物质气化发电、CO2封存的废弃井钙基储能系统，涉及能源利用技术领域。该钙基循环储能系统中，生物质燃烧模块具有烟气出口A2，生物质燃烧模块用于气化并燃烧生物质，使燃烧产生的烟气自烟气出口A2输出；碳捕集模块具有CO2出口B2，其用于接收烟气出口A2输出的烟气，并分离烟气中CO2使其自CO2出口B2输出；地下储能模块，其包括注井和采井，CO2出口B2连通于注井，以将CO2通过注井注入地下形成人工热储；钙基循环储能模块用于利用CaCO3煅烧分解与CaO碳酸化的往复化学反应实现储/释能，钙基循环储能模块包括碳酸化反应器，碳酸化反应器具有CO2补气口C1，CO2补气口C1连通于采井，有效降低CaO/CaCO3循环储能对外部碳源的依赖。

地热增强传热的中深层闭式取热井、施工方法及取热系统

Resumen de: CN122774743A

本发明公开了一种地热增强传热的中深层闭式取热井、施工方法及取热系统，地热增强传热的中深层闭式取热井包括：主井同轴套管，设置在低温地层段；所述主井同轴套管包括同轴设置的内筒和外筒；在所述外筒的中下部设置有一个开口；换热管，所述换热管由依次连接的第一倾斜段、第一竖向段、第二倾斜段和第二竖向段构成，所述第一竖向段、第二倾斜段和第二竖向段的整体及第一倾斜段的部分位于深部砂岩热储层；所述第一倾斜段入口连接在所述外筒的开口处，所述第二竖向段出口与所述内筒连接。本发明中深层闭式取热井，解决纯同轴套管井换热路径单一和水平换热面积利用不足的问题，在提高深部热储换热面积利用率的同时，提升了复合井眼成形可靠性。

适用于隧道防寒抗冻的地热导热系统及控制方法

Resumen de: CN122774150A

本发明公开适用于隧道防寒抗冻的地热导热系统及控制方法，导热系统，包括：热采集单元、换热单元、散热单元和控制单元，热采集单元包括热采集管群、循环泵、循环管道和温度传感器，换热单元包括换热器和保温层，散热单元包括散热片组件和隔热单元，控制单元包括数据处理模块和PLC控制器，所述数据处理模块与温度传感器电连接，用于接收温度数据并进行分析；所述PLC控制器分别与所述循环泵和所述换热器电连接，用于控制导热系统运行参数。本发明利用地热清洁能源，供热精准高效、热量利用率高，散热片维修便捷，适应极端低温环境，能有效防止岩土冻结与管片故障，降低施工及运营成本，适用于各类隧道防寒抗冻。

一种地热回灌井回扬与回灌的交替运行控制方法及系统

Nº publicación: CN122774021A 18/09/2026

Solicitante:

中电建地热开发有限公司

Resumen de: CN122774021A

本发明公开了一种地热回灌井回扬与回灌的交替运行控制方法及系统，该方法通过实时采集回灌井口压力、回灌量、回灌井动水位、回灌水电导率以及过滤装置前后压差，建立多参数动态耦合的堵塞程度综合评估指数；将评估指数与预设回扬触发阈值比较，精准判断回扬时机；根据堵塞程度综合评估指数与回扬流量和回扬持续时间的正相关关系，自适应设定回扬参数，以浊度作为回扬终止判据；回扬结束后计算回扬效果指数，据此对回灌参数进行自适应调整，并建立回扬周期优化模型动态修正下次回扬间隔时间。本发明实现了多参数耦合评估、自适应回扬控制、效果反馈优化和周期动态调整的闭环运行，有效提高了回灌效率，降低了运维成本，延长了回灌井使用寿命。