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单井抽灌地热系统中非达西渗流检测方法及相关设备

Absstract of: CN122839884A

本申请提供一种单井抽灌地热系统中非达西渗流检测方法及相关设备，所述方法包括建立单井抽灌地热系统中地下水流动的数学模型；构建地下水流动的控制方程，并确定初始条件和边界条件；利用分数阶达西模型描述井筒水平方向的非达西渗流，代入控制方程并进行线性化近似处理；对控制方程、初始条件和边界条件进行拉普拉斯变换和有限余弦傅里叶变换得到常微分方程；对常微分方程进行求解，得到非达西渗流在拉普拉斯域中的解析解表达式；对解析解表达式进行拉普拉斯逆变换得到非达西渗流在时间域中的解析解表达式。本申请提供的单井抽灌地热系统中非达西渗流检测方法及相关设备，简单方便，可以揭示水位降深的时空演化特征及其分布规律，准确可靠。

一种地源热泵地埋管热响应测试分析方法

Absstract of: CN122814672A

0001 本发明涉及地埋管热响应测试技术领域，涉及到一种地源热泵地埋管热响应测试分析方法。本发明通过在热平衡状态下提取地埋管不同位置处的流体温度，筛选评估岩土体初始平均温度，并对循环流体进行恒功率持续加热，基于地源热泵运行数据与循环流体进出口温度，判定流体温度变化状态，当处于稳态阶段后对加热阶段内循环流体进出口温度进行筛选，构建流体平均温度与时间对数的关联序列，拟合分析岩土体导热系数及钻孔热阻，结合历史同类地质对应地埋管测试数据进行修正，生成修正后的岩土体导热系数、钻孔热阻和岩土体初始平均温度的热响应测试报告，提升热响应参数的一致性与可靠性，提高后续地源热泵系统的换热能力准确性。

岩土热响应测试方法、装置、设备、存储介质及产品

Absstract of: CN122814669A

本发明创造提供了一种岩土热响应测试方法、装置、设备、存储介质及产品，属于地源热泵技术领域，其中所述方法包括：获取岩土热响应测试的短时原始数据；对短时原始数据进行预处理，生成预处理数据；对预处理数据进行再处理，生成基础数据；根据基础数据构建XGBoost拟合模型，对实测供水温度及实测回水温度随时间变化的函数关系进行拟合，并通过基础数据构建XGBoost拟合模型预测未来数据；根据基础数据和未来数据生成综合数据，并根据综合数据计算岩土体综合导热系数。本发明创造所述的岩土热响应测试方法、装置、设备、存储介质及产品，能够缩短测试时间，提高数据精度，提高测试效率和结果准确度。

一种基于岩屑预测原位地层岩石导热系数的方法及系统

Absstract of: CN122814663A

本发明公开了一种基于岩屑预测原位地层岩石导热系数的方法及系统，对钻井岩屑进行烘干、研磨和筛分以获得粒径稳定的岩屑粉末；利用瞬态平面热源法测量饱和岩屑粉末的导热系数；基于饱和岩屑粉末的饱和质量与干燥质量，计算粉末孔隙率；基于侧井平台获取原位地层数据，包括补偿声波时差和自然伽马值，并由此计算得到原位地层有效孔隙率；基于两相几何平均模型，以饱和岩屑粉末的导热系数和粉末孔隙率为输入变量，对岩石固相导热系数进行反演；根据岩石固相导热系数与原位地层有效孔隙率，计算得到原位地层岩石导热系数。从而解决深层地热井中岩心难以获取、传统岩屑测试精度不足、测井参数无法直接转换为热物性、现有预测模型适用性差等问题。

一种多年冻土温度补偿逐时供冷量计算方法及系统

Absstract of: CN122818735A

0001 本发明提出一种多年冻土温度补偿逐时供冷量计算方法及系统，涉及冻土工程技术领域，用以解决现有方法多为长周期平均估算、无法满足逐时动态调控需求的技术缺陷。本发明的技术要点包括：获取目标冻土区域的基础参数；基于基础参数建立基于焓值的冻土非稳态传热模型，进而计算得到无温度补偿时的温度场及焓场；设定冻土温度补偿层的位置及目标温度，计算温度补偿层在目标温度下的目标焓值；基于焓场和目标焓值计算温度补偿层各时刻的焓偏差；基于焓偏差得到冻土温度补偿逐时目标供冷量；对冻土温度补偿逐时目标供冷量进行修正，输出修正逐时供冷量。本发明可广泛应用于公路、铁路、管道、建筑等各类寒区工程的冻土温度补偿设计与运行管理。

模拟钻孔边界的地埋管回填材料换热性能测试装置及方法

Absstract of: CN122814666A

本发明公开了一种模拟钻孔边界的地埋管回填材料换热性能测试装置及方法，包括模拟钻孔试验筒体、U型地埋管换热器、温控循环测试系统、多点温度监测组件以及数据采集与控制单元；U型地埋管换热器内嵌式设置在模拟钻孔试验筒体中，U型地埋管换热器与温控循环测试系统连接，多点温度监测组件设置在模拟钻孔试验筒体内的不同待测区域，并于数据采集与控制单元连接；本方案能够在试验室条件下模拟地埋管钻孔中的换热边界，使待测回填材料不再作为孤立试块进行测试，而是在接近实际钻孔“U型管—回填材料—孔壁岩土体—远场恒温边界”的条件下进行换热性能测试。

一种温室地热能协同供暖动态调控方法

Absstract of: CN122815882A

本发明提供一种温室地热能协同供暖动态调控方法，属于温室地热能协同供暖动态调控技术领域，本发明通过递推最小二乘法在线辨识换热器等效垢层热阻并动态修正换热量计算模型，利用多孔介质热流耦合代理模型结合集成卡尔曼滤波预测热突破风险并同步更新储层孔隙度与渗透率参数，以改进单纯形法求解全局㶲损最小化流量分配并生成各支路调节阀开度指令，在边缘控制节点部署人工智能驱动的时序㶲动态调控模型完成局部异常检测与初步指令生成，依据温场均匀度指数动态修正局部补热环路流量，解决了温室地热能协同供暖系统无法在换热器垢层动态累积、储层热突破风险演变与多环路㶲效率时变耦合条件下实现全局㶲损最小化动态调控的技术问题。

双流道无杆井筒取热防堵系统及方法

Absstract of: 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。

一种中深层地热发电智能温压协同调控方法及系统

Absstract of: CN122816335A

0001 本发明属于地热能源的技术领域，涉及了一种中深层地热发电智能温压协同调控方法及系统，包括以下步骤：对齐时间戳维度生成多维度时序传感数据集；计算井筒分段热交换效率分布曲线的梯度突变节点位置并标记为形态衍生参数；对异常演化模式对应的局部畸变特征数据段执行降维离散化处理，输出离散化风险模式特征码；利用局部回注阻尼压力修正约束条件更新初始联合协同控制脚本构建多变量协同动作序列脚本；形成时间延迟触发基准面；利用脉冲式升温激增响应与压力波峰面重构热交换平稳运行区间。本发明解决了传统调控方法难以基于井筒深部微观物理过程的早期异常特征，进行温压协同和时空干预的问题。

超临界CO2同轴套管运行参数量化调控方法

Absstract of: CN122813399A

本发明涉及余热回收领域，具体涉及超临界CO2同轴套管运行参数量化调控方法，包括步骤一：构建超临界CO2同轴套管运行参数的实时监测体系；步骤二：构建超临界CO2相态‑地层换热‑套管流动的多场耦合模型；步骤三：建立超临界CO2同轴套管的量化调控阈值体系；步骤四：构建注入压力量化调控公式、回流流量量化调控公式和多参数耦合量化调控模型；步骤六：建立基于加权赋分的优先级执行调控机制，步骤七：开展运行参数调控效果的实时监测与量化评估，步骤八：实施调控策略的动态迭代优化，本发明解决了传统调控方法经验化、无物理模型支撑的问题，避免了因调控顺序不当导致的系统运行失稳，提升了调控的有序性与有效性。

一种复合相变格栅—通风管协同的严寒区公路路基温控结构

Absstract of: CN122812141A

本发明公开了一种复合相变格栅—通风管协同的严寒区公路路基温控结构，其包括复合相变格栅、活塞式导热柱、导套、热交换板和通风管；复合相变格栅水平铺设于多年冻土活动层内，局部设有填充区，填充区底部设有螺栓孔；活塞式导热柱上端穿设导套后与螺栓孔螺纹连接，下端设有导热凸柱球曲面；本申请通过复合相变格栅与通风管结构级耦合，实现潜热调控与对流换热协同作用；冻结期可平抑温降、均匀温度场，降低差异冻胀风险；融化期可排散热量、稳定冻融界面，减小融沉风险；活塞式导热柱内设弹簧结构可适应冻胀融沉产生的相对位移。本申请适用于多年冻土及严寒区公路路基的热稳定控制。

一种地热井高导热涂层结构优化方法及高导热涂层

Absstract of: CN122818452A

本发明公开了一种地热井高导热涂层结构优化方法及高导热涂层，属于中深层地热能开发技术领域。方法包括：确定导热相的成分与配比范围：基于所述设计基础数据，筛选高导热无机非金属材料作为核心导热相，建立导热相导热性能与井下热流密度的匹配关系；确定粘结相与改性相的成分与配比范围：基于所述设计基础数据，筛选合金材料作为粘结相，并分别划定粘结相和改性相的基础配比区间；确定涂层结构参数范围：基于所述导热相、粘结相与改性相的基础配比区间，设计并划定涂层的微观结构参数范围和宏观结构参数范围：建立涂层成分‑结构‑综合性能的耦合优化模型，采用多目标优化算法求解所述耦合优化模型，得到涂层成分配比与结构参数的初始优化方案。

一种城市地下空间空调热湿负荷的工程计算方法

Absstract of: CN122818469A

0001 本发明公开了一种城市地下空间空调热湿负荷的工程计算方法，涉及空调热湿负荷的工程计算技术领域，包括以下工作步骤：步骤S1、收集基础数据，所述基础数据包括地下空间所在地气象参数、地质勘察数据、建筑设计参数、室内设计参数、围护结构及围岩土体材料物性参数、内热源与内湿源数据、通风参数。本发明通过构建更完整的热湿耦合控制方程并引入地下水渗流项，实现地下空间空调热湿负荷的精准计算；同时建立全参数工程化取值方法，有效破除地下空间热湿负荷计算的技术应用壁垒。本发明对于提升地下建筑暖通空调系统设计的科学性、优化设备选型合理性、实现系统节能高效运行，具有重要的工程应用价值与理论指导意义。

一种中深层地源热泵耦合储热系统柔性控制方法及系统

Absstract of: CN122813439A

本发明是关于一种中深层地源热泵耦合储热系统柔性控制方法及系统，包括：基于深度神经网络构建中深层地埋管的非线性自回归外生模型，并线性化得到以控制为导向的中深层地埋管性能预测模型；估计所述中深层地源热泵耦合储热系统中无法直接测量的状态变量，并更新所述中深层地源热泵耦合储热系统中各物理部件的未知性能参数；通过执行滚动优化，得到使预测时域内所述中深层地源热泵耦合储热系统的运行成本与室内温度累计偏差的加权组合最小化的最优控制序列；基于最优控制序列，控制热泵和储罐的启停与流量调节。采用本发明技术方案，能够实现建筑用能侧与电网侧的柔性交互，显著降低系统供热成本和运行能耗，同时提升建筑室内热舒适性。

关闭矿井采空区-围岩协同补热与热恢复系统及调控方法

Absstract of: CN122813400A

本发明涉及矿井地热资源开发利用技术领域，公开了一种关闭矿井采空区‑围岩协同补热与热恢复系统及调控方法，其中，循环取热单元布置于采空区内用于与采空区岩体进行热交换以提取热量；围岩补热单元设有延伸至围岩深部热储层的补热通道，补热通道与循环取热单元所在空间连通，且补热通道内设有导热介质，用于将围岩深部热量传导至采空区内；温度监测单元用于监测采空区及围岩的温度；流量调节单元用于调节循环取热单元内工作流体的流量；控制单元与温度监测单元和流量调节单元通信连接，本发明有效延缓了采空区温度衰减，大幅延长了系统的全生命周期热能产出。

PRESSURE AND TEMPERATURE RECOVERY SYSTEMS FOR GEOTHERMAL POWER PLANTS

Absstract of: 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

Absstract of: 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.

SYSTEM AND METHOD OF MONITORING HIGH TEMPERATURE GEOTHERMAL SYSTEMS

Absstract of: 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.

PONDLESS HYDROMECHANICAL STORAGE SYSTEM

Absstract of: 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.

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

Absstract of: 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 SUBTERRANEAN RESERVOIRS

Absstract of: 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.

DRILLING A MULTILATERAL CLOSED-LOOP GEOTHERMAL WELL

Absstract of: 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.

NON-CONDENSABLE GAS REINJECTION SYSTEM

Nº publicación: US20260287212A1 24/09/2026

Applicant:

FUJI ELECTRIC CO LTD [JP]
FUJI ELECTRIC CO., LTD.

Absstract of: 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.