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65
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Updated on
14/02/2026 [07:45:00]
Absstract of: CN121520746A
本申请涉及地热能开发利用技术领域，公开了中深层地温能无水开采的多井协同强化换热方法。该方法构建包含中心主采热井、辅导热井阵列及温敏相变热导桥接灌浆域的倒锥形热传导网络。运行时，中心井注入低温工质致使灌浆域降温至相变温度以下，触发微胶囊相变收缩，诱导高导热填料相互接触并构建导热渗流网络，使灌浆域热导率由基态转变为增强态。辅导热井利用重力热管原理将远场热量汇聚并传递至中心井。本发明利用温度场驱动材料微观结构演变，实现了热导率的自适应调节，在显著扩大取热体积的同时，降低了非运行期间的井筒热散失，提升了地热能开采效率，减少了非运行期间井筒内工质热量向地层的反向散失。
Absstract of: CN121520744A
本发明涉及地热控制技术领域，公开了一种基于多源热储协同调度的深层地热梯级开发系统及控制方法，系统包括多源热储感知与融合子系统、动态热流调度子系统及梯级热能释放子系统。方法包括将多源的原始热储分布数据合并为包含热储的实时温度、压力及渗透率参数的热储状态图；将热储状态图转换为实时热流调度计划，热流调度计划指定从各热储提取热能的速率、顺序及路径；根据实时热流调度计划，热能通过多级热交换序列，从高温到低温逐级释放，产生不同品位的热能输出，用于发电或供暖。本发明实现地下热储参数的精准三维建模，突破传统地热开发中能量利用效率低、地层扰动风险高、产能衰减快的技术瓶颈。
Absstract of: CN121519900A
本发明属于地热能利用技术领域，具体公开了一种U型井精准对接方法，该方法包括：同步采集直井与水平井的地质及实时钻进轨迹数据；构建集成地质模型与实时轨迹的可视化虚拟场景；实时获取直井进度及其地质与坐标数据，据此动态优化水平井的造斜角、工具面角及钻进参数；在虚拟场景中设置初始靶点，并依据其与双井的相对空间关系实时调整水平井轨迹以实现精准对接。本发明还通过地应力模拟与机器学习预测靶点偏移，利用随钻测量与压力监测实现轨迹动态修正与闭环控制。本发明有效解决了现有U型井对接中依赖人工经验、数据整合不足、轨迹调整滞后导致的对接成功率低、周期长、成本高的问题，显著提高了钻井对接精度与效率。
Absstract of: CN121520747A
本申请涉及地热能利用技术领域，公开了一种利用超临界二氧化碳的中深层地热井换热系统及方法，所述系统包括：用于使超临界二氧化碳循环的闭式循环回路；密度主动调控模块，所述密度主动调控模块包括：微增压注入单元、热电制冷微调单元和微泄压缓冲单元；智能控制模块，用于控制所述密度主动调控模块，以调节所述闭式循环回路中超临界二氧化碳的自然循环流量。本发明通过设置智能控制模块根据实时运行参数预测系统自然循环驱动力的未来趋势，基于测结果可提前对密度主动调控模块发出指令，在系统偏离最优工作点之前进行前馈式干预，从而有效抑制了传统反馈控制中固有的时滞与超调问题，提升整个换热系统运行的平稳性和热量提取效率。
Absstract of: CN121520023A
本发明公开了深部高温煤层隔热开采协同可调温空间构建与应用方法。首先在煤层下方岩层进行条带开采与矸石充填，建立水循环控温系统，为上部煤层降温并提取地热。随后在降温煤层中构建充填高导热材料并安装存储罐的可调温空间。最后利用所述地热将存储罐内重介悬浮液加热至最优温度，直接用于煤矿重介分选系统，实现安全开采与地热资源综合利用。
Absstract of: CN121520745A
本发明公开了一种基于土壤耦合能源的日放夜充式智能供能系统，涉及供能管理技术领域。本发明通过土壤换热器回路采集用户建筑周边的地热参数集，在供放能时间轴上设置策略调整点，获取各个策略调整点的匹配度数值，进而根据匹配度数值判断各个策略调整点是否执行，根据判断结果生成动态供放能策略序列并执行，根据土壤换热器回路的空间位置分布建立三维热物性分布图，将地热参数集映射于三维热物性分布图，进而对地热参数集进行修正，根据三维热物性分布图建立热响应模型，将热响应模型划分为多个供放能区域，建立供放能时间轴并获取分时电价信息，进而在供放能时间轴上对各个供放能区域设置窗口期以及负荷预测曲线。
Absstract of: CN121520637A
本申请涉及地热能存储领域，公开了基于多源余热与智能调控的跨季节岩土储热系统，包括：物理层，包括岩土储热体；多源余热接入与预处理单元；地埋换热管网；能量智能调配单元，与所述地埋换热管网和多源余热接入与预处理单元相连接；信息与控制层，包括：多物理场传感网络，布设于所述岩土储热体中；数字孪生与多物理场耦合仿真引擎，与所述多物理场传感网络相连接；智能决策与调度中心，与所述物理层通信和数字孪生与多物理场耦合仿真引擎相连接。通过引入地质应力健康度指数作为关键量化指标，并利用数字孪生与多物理场耦合仿真引擎进行实时计算与前瞻式安全校核，以此能够预见并规避潜在的结构破坏，提升了系统的结构安全性与运行可靠性。
Absstract of: US20260043309A1
There is provided a valve assembly suitable for use in a high temperature well, such as a geothermal well. The valve assembly comprises a tubular housing having ports to allow fluid communication between a fluid passageway in the valve assembly and the outside of the valve assembly, an outer sleeve longitudinally slidable in the tubular housing, and an inner sleeve longitudinally slidable in the outer sleeve. The outer and inner sleeves are slidable to various positions to prevent, allow or restrict flow through the ports. The valve assembly may include sealing assemblies that can withstand high temperatures, frangible plugs in the ports that can be sheared to open the ports, and/or a coupling member for coupling the inner and outer sleeve while the ports are being opened. The valve assembly may have ports configured in a manner that allows for sequential opening of the ports.
Absstract of: US20260042673A1
An approach to producing fluids from a subsurface formation includes identifying downhole locations where conditions are appropriate for a geothermal well; identifying one or more tools that will be installed at the identified downhole locations; providing the identified tool(s) covered with catalyst-free PCD coatings; and installing the tool(s) covered with PCD coatings in the identified downhole locations.
Absstract of: WO2026035729A1
An approach to producing fluids from a subsurface formation includes identifying downhole locations where conditions are appropriate for a geothermal well; identifying one or more tools that will be installed at the identified downhole locations; providing the identified tool(s) covered with catalyst-free PCD coatings; and installing the tool(s) covered with PCD coatings in the identified downhole locations.
Absstract of: CN121498260A
本发明提供一种增强型中深层地热单井换热系统及其建立方法，涉及地热换热，包括：地热井；岩石，地热井设置于岩石内，岩石内部设有多道延伸至地热井的裂隙；导热固井层，地热井内设有环绕其内壁设置的导热套管，导热固井层设置于导热套管外壁与各裂隙之间；以及循环管路，其包括工作管、循环泵和热泵机组，工作管设置于地热井的中部、上端与地热井井口固定连接、下端与地热井井底分离，工作管外壁与地热井内壁之间形成环形空间，热泵机组的输出端通过进液管路依次连接循环泵和环形空间，热泵机组的输入端通过出液管路连接工作管的内部。本发明的有益效果：在不抽取地热水的情况下，大量提取地热能，导热能力得到大大提升，换热量提升两倍以上。
Absstract of: CN121497448A
本发明公开了面向矿区的卡诺电池与二氧化碳增强型地热系统，包括sCO2‑EGS子系统，sCO2‑EGS子系统通过管道连接有卡诺电池子系统，卡诺电池子系统通过管道连接有矿井水余热利用子系统，sCO2‑EGS子系统还通过管道连接有瓦斯余热利用子系统，还包括电力母线，sCO2‑EGS、卡诺电池、矿井水余热利用与瓦斯余热利用均通过导线与电力母线连接。本发明还公开了面向矿区的卡诺电池与二氧化碳增强型地热系统的运行方法。本发明公开的地热系统及其方法，解决了现有矿区地热系统中，仅通过超临界二氧化碳增强型地热发电系统发电，导致能源利用效率较低、工质流量减少、电能供需失衡的问题。
Absstract of: CN120684172A
The invention relates to a method and a system for storing energy through a formation fracture based on compressed air. The method comprises the following steps: constructing the formation fracture; blocking rock gaps and/or microfractures around the stratum fractures; the sealing performance of the stratum fractures is judged; compressed air is injected into the target shaft for energy storage; compressed air is reversely discharged for releasing energy. Accumulation of air compression potential energy is achieved, stress potential energy and elastic potential energy of rock deformation can be accumulated, and stratum heat energy is obtained. Most importantly, the method is not restrained by geographical conditions, underground compressed air energy storage can be carried out at any place, and the application range of compressed air energy storage is greatly expanded.
Absstract of: CN121488734A
本发明公开了一种地埋浮潜式栽培槽保温机构及保温方法，涉及农业栽培技术领域，本发明地埋浮潜式栽培槽保温机构，包括浮筒和顶部开口的保温腔，保温腔固定设于地下，且所述保温腔通过循环管路外接有补水装置，以向所述保温腔内通入设定量的水；浮筒活动设于所述保温腔内，其顶部固定设有栽培槽，所述浮筒能够悬浮于所述保温腔内的水中。本发明提供的地埋浮潜式栽培槽保温机构及保温方法，能够维持作物生长所需的适宜温度，保温效果好。
Absstract of: CN121474763A
本发明公开了一种同轴套管式地埋管、地源热泵系统及其调控方法，属于地源热量利用技术领域，能够解决现有地源热泵系统运行能效低的问题。所述地埋管包括：同轴套设的内管和外管，内管和外管之间形成环形空腔，环形空腔的顶端通过进口管与热泵机组的蒸发器出口连通；内管的顶端通过出口管与热泵机组的蒸发器进口连通，内管的底端通过吸水管与环形空腔连通；第一电磁阀，设置在进口管连接蒸发器出口的一端；第二电磁阀，设置在出口管连接蒸发器进口的一端；循环管，其两端分别与进口管和出口管连通；第三电磁阀，设置在循环管上；换热介质，可流动地充满内管、环形空腔、进口管、出口管和循环管；循环泵，设置在循环管上。本发明用于采集地源热量。
Absstract of: CN121473189A
本发明公开了一种桩承式搭板通风路堤结构，包括自下而上设置的刚性桩层、连接层以及路堤层。刚性桩层为竖向均匀布置于路基两侧的刚性桩，两侧的刚性桩一一对应；刚性桩底端伸入永久冻土层，顶端布置连接层；连接层上方铺设路堤层；连接层包括桩帽和通风搭板，每一个刚性桩顶部均设置有桩帽，通风搭板两侧分别搭接于一一对应的桩帽顶端。本申请紧密结合多年冻土区环境气候及地质特征，能够实现提高路基地基承载力的同时保护路基冻土，减少施工过程对冻土地基扰动、减缓冻土融化速率，以消除多年冻土区新建和在役公路路基病害，提高公路的通行效率和服务等级、提高乘客驾驶感受、减少养护周期及养护成本。
Absstract of: CN121474733A
本发明公开了一种中深层地热井的尾水回灌系统及工作方法，具体涉及，包括回灌井、真空破坏器、流量计、控制系统、远程监控装置、稳流罐、杂质过滤装置、真空检测装置和温控装置。本发明所述的一种中深层地热井的尾水回灌系统及工作方法，通过在回灌井加装真空破坏器，有效解决了回灌过程中产生的负压问题，防止了供暖系统内形成真空柱，提高了供暖效果，简化了地热动态监测工作，其中真空破坏器的设置使得尾水能够顺利回灌至热储层，避免了空气进入回灌系统的情况，保持了尾水的水质，防止了回灌通道堵塞，提高了回灌效率，且无需设置复杂的除砂器、过滤罐和排气罐等设备，简化了系统结构，降低了系统成本，同时提高了回灌效率。
Absstract of: CN121474732A
本发明提供了一种砂岩热储层地热尾水回灌装置，涉及地热尾水回灌技术领域，包括套管基管，套管的内壁固定连接有若干个阶梯状连接件，基管上设置有两个用于防垢的填充式筛管组件，基管的底端固定连通有用于排水的绕丝筛管组件；填充式筛管组件包括与基管固定连通的穿孔管，穿孔管的表面覆盖有填充过滤层，填充过滤层的表面开设有若干个第一导流槽，绕丝筛管组件包括中心管、若干个纵向支撑杆和绕丝层，绕丝层的表面固定连接有螺旋导流环，若干个纵向支撑杆的内壁共同设置有若干个环形导流板，通过多级过滤降结构低堵塞风险，通过第一导流槽、第二导流槽引导尾水的流动路径，减少紊流和过滤结构对尾水造成的阻力，提高了尾水的流速和回灌量。
Absstract of: US20260036049A1
A system for recovering thermal energy from a fractured subterranean formation can include a fluid removal system configured to remove a fluid comprising a liquid phase from the fractured subterranean formation through a wellbore that is in fluidic communication with a low permeability rock matrix through fractures in the fractured subterranean formation. The system can also include a heated fluid collection system configured to recover, through the wellbore, a heated fluid comprising a vapor phase that is expelled from the low permeability rock matrix of the fractured subterranean formation as a result of a reservoir pressure of the fractured subterranean formation falling below a saturation pressure of the fluid, where the fluid removal system is configured to be shut down while the heated fluid collection system operates, and where the heated fluid collection system is configured to be shut down while the fluid removal system operates.
Absstract of: US20260036340A1
A method includes causing a first portion of a heat-transfer working fluid to flow from a first lateral wellbore of a closed-loop geothermal well to a second lateral wellbore of the closed-loop geothermal well via a wellbore intersection. The first lateral wellbore and the second lateral wellbore reside in a target subterranean zone. A second portion of the heat-transfer working fluid is caused to flow through the Earth of the target subterranean zone from the first lateral wellbore to the second lateral wellbore.
Absstract of: US20260036003A1
The present invention provides components with metamaterial structures for use in enhanced geothermal systems.
Absstract of: US20260036015A1
A method of improving heat recovery from a geothermal well includes receiving temperature distribution data from a distributed temperature sensing (DTS) system comprising a fiber optic cable disposed in a wellbore, which extends through a formation; analyzing the temperature distribution data to determine a fluid flow profile along the wellbore; determining, based on the fluid flow profile, a location of dominant flow rate; and injecting a sealing agent into the formation at the location. When the sealing agent cures, fractures within a fracture system are sealed in the formation at the location. The cured sealing agent prevents or mitigates fluid flow through the formation at the location.
Absstract of: AU2024305888A1
A compressed gas energy storage system which can also store thermal energy. The storage system can have a surface subsystem, a geological heat storage subsystem, and a compressed gas storage subsystem. The surface subsystem can comprise gas compression, gas expansion, and heat exchange functions. The geological heat storage subsystem can comprise a cold and hot zone in fluid communication with the surface subsystem. The compressed gas storage subsystem can also be in fluid communication with the surface subsystem. The systems and methods can be implemented in porous rock formations. This allows for the use of extremely large, natural formations rather than man-made salt caverns, as is the current state of the art. Existing wells drilled by oil and gas producers can be utilized, thereby drastically reducing cost and time for implementation. Further, use of sub-surface thermal management provides a complete solution for long term energy storage at high efficiency.
Absstract of: WO2026025568A1
A geothermal device and method for reconstruction of abandoned oil and gas wells. The geothermal device comprises a heat exchanger arranged at the wellhead of an abandoned oil and gas well and an unpowered heat extractor located inside the abandoned oil-gas well, wherein the unpowered heat extractor comprises a thermal insulation member and an evaporation member; the heat exchanger, the thermal insulation member and the evaporation member are sequentially in communication with each other from top to bottom; a liquid working medium is injected into the unpowered heat extractor, absorbs heat from a crude oil layer and evaporates into a gaseous working medium; the gaseous working medium is sequentially transported through the evaporation member and the thermal insulation member to the heat exchanger, condenses in the heat exchanger to release heat and turns into the liquid working medium; and the liquid working medium flows back to the bottom of the abandoned oil and gas well under the action of gravity. The present invention achieves true "heat extraction without water extraction", and does not require a water pump during operation, thereby reducing operation costs.
Nº publicación: CN121451936A 03/02/2026
Applicant:
中国电建集团西北勘测设计研究院有限公司
Absstract of: CN121451936A
本发明公开了一种基于井‑地多域数据的注采联动控制方法，属于注采监测和控制技术领域，能够解决现有技术无法同时实现井下‑地面多源信息的融合感知、秒级异常预警以及注采参数的联动智能控制的问题。所述方法包括：S1、根据采集的井下感知数据和地面感知数据确定待测井在对应采样周期的状态特征向量；S2、根据待测井在不同采样周期的状态特征向量确定待测井在当前采样周期的风险指数；S3、根据待测井在当前采样周期的状态特征向量和风险指数构建待测井在当前采样周期的回报函数；S4、求解待测井在当前采样周期的回报函数，并根据求解得到的最优控制策略控制待测井的注采设备在下一采样周期的注采动作。本发明用于注采联动控制。
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