Inicio

GEOTHERMAL SYSTEM MATERIALS

Resumen de: US20260036003A1

The present invention provides components with metamaterial structures for use in enhanced geothermal systems.

GEOTHERMAL DEVICE AND METHOD FOR RECONSTRUCTION OF ABANDONED OIL AND GAS WELLS

Resumen de: 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.

地熱発電用スクラバ装置および地熱発電システム

Resumen de: US20260027505A1

A scrubber for geothermal power generation, includes a treatment container, a drainage pipe, and a cooling mechanism. The treatment container separates geothermal steam into a separated gas and a separated liquid by treating the geothermal steam with a treatment liquid and has a steam supply opening to which the geothermal steam is supplied, and a gas release opening from which the separated gas is released. The drainage pipe is placed below the treatment container to discharge the separated liquid. The cooling mechanism cools a portion of the treatment container between the steam supply opening and the drainage pipe.

COMPRESSED GAS ENERGY STORAGE SYSTEM USING A GEOLOGICAL THERMAL STORE

Resumen de: 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.

PRODUCTION OF LOW PERMEABILITY GEOTHERMAL RESOURCES

Resumen de: 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.

OPTIMIZING FLUID FLOW THROUGH CLOSED-LOOP GEOTHERMAL SYSTEMS

Resumen de: 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.

SYSTEMS FOR GENERATING ENERGY FROM GEOTHERMAL SOURCES AND METHODS OF OPERATING AND CONSTRUCTING SAME

Resumen de: MX2025014757A

The present disclosure describes a system and a method for generating energy from geothermal sources. The system includes an insulated injection pipe and a common well segment, an injection well and a production well, a first lateral section connected to the injection well and a second lateral section connected to the production well, a multilateral connector joining the first and second lateral sections, the insulated injection pipe coinciding with the common well segment, defining a pressure-tested loop within the rock formation and in a heat transfer arrangement therewith. The loop cased in steel and cemented in place. The loop to receive working fluid capable of undergoing phase change 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.

HIGH THERMAL COEFFICIENT SLURRY COMPOSITIONS AND METHODS THEREFOR

Resumen de: MX2025014876A

A high-thermal conductivity slurry composition is provided that includes slurry mixture comprising a high-thermal k material and an optional dispersant. The high thermal k material is in form of a plurality of particles having a wide size distribution that spans across at least 2 log units. The high-thermal k material is present in an amount effective such that the slurry composition has, upon compaction or settling of the slurry mixture at a target location, a thermal conductivity of at least 3 W/m°K.

一种基于井-地多域数据的注采联动控制方法

Resumen de: 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。

地热井智能选址方法、装置、电子设备及地热井控制系统

Resumen de: CN121435655A

本申请公开了一种地热井智能选址方法、装置、电子设备及地热井控制系统，本申请涉及地热井选址技术领域，所述地热井智能选址方法包括：获取地热井种群、地质模型以及适应度函数，地热井种群包括多个具有不同选址参数的地热井；根据各地热井的选址参数、地质模型和适应度函数，计算得到各地热井的适应度；检测地热井种群是否满足遗传终止条件；若不满足，则根据各地热井的适应度，对地热井种群进行遗传进化，以更新地热井种群，并返回执行：根据各地热井的选址参数、地质模型和适应度函数，计算得到各地热井的适应度的步骤；若满足，则将适应度最高的地热井作为目标地热井。本申请能够高效准确地完成地热井选址。

相变潜热蓄能型中深层地热与太阳能光热的时空互补系统及方法

Resumen de: CN121430211A

本发明涉及清洁能源利用技术领域，公开了一种相变潜热蓄能型中深层地热与太阳能光热的时空互补系统及方法，系统包括地热相变稳定化子系统、太阳能相变融合子系统、时空调制释放子系统；方法包括从中深层地质结构中提取原始地热流，将原始地热流的波动性热能转化为具有均匀热分布的稳定地热基荷；捕获太阳辐射能形成初始太阳能热流，将初始太阳能热流与稳定地热基荷通过相变材料的潜热释放与吸收循环进行热融合，将原始地热流和初始太阳能热流整合为单一的融合热储能；基于外部时空需求信号，从融合热储能中提取热能，根据时间与空间分布要求，输出符合外部时空需求的热能供应。本发明形成具备时空自适应能力的多能互补供热体系。

一种地源热泵地埋管分区布设及冷热平衡控制方法

Resumen de: CN121430232A

本发明涉及地源热泵技术领域，公开了一种地源热泵地埋管分区布设及冷热平衡控制方法，包括以下步骤：获取所述地源热泵地埋管所在区域的当前三维地温场状态；预测在未来一预测时域内、不同控制策略下所述地温场的未来状态序列；基于一个以所述预测时域内的系统综合运行成本最小化为目标的多目标优化函数，求解得到一个最优控制序列；所述多目标优化函数至少包括表征系统短期运行能耗的能耗项和表征地温长期平衡状态的平衡项；执行所述最优控制序列中的首个控制动作。本发明构建的预测模型能够将物理规律与从实际运行中持续学习到的数据残差相结合，确保了控制决策所依赖的预测信息在系统长期运行中始终保持高保真度。

INTERVENTION COMBINATIONS TO BOOST WELL PERFORMANCE IN GEOTHERMAL SYSTEMS

Resumen de: US20260028968A1

Methods are provided for extracting thermal energy from a geothermal reservoir having at least one feature extending therethrough, which involve drilling or accessing a production well that intersects the at least one feature, wherein the at least one feature provides a flow path of pressurized geothermal fluid into the production well. Well log data can be analyzed to determine position of the at least one feature in the production well. One or more interventions, or combinations of interventions, can be performed to open the feature or otherwise enhance the flow rate of pressurized geothermal fluid carried by the feature into the production well. The intervention(s) can be performed on multiple features that connect to the production well. The method can also be applied to multiple production wells.

GROUNDWATER HEAT EXCHANGER HAVING A CABLE CHANNEL

Resumen de: US20260029165A1

A groundwater heat exchanger includes a plurality of heat exchange pipes, a housing and a cable channel. Each of the heat exchange pipes is configured to receive a loop fluid flow. The housing has an interior chamber that contains the heat exchange pipes and defines a groundwater passageway that is configured to receive a groundwater flow. The cable channel is formed on an exterior of the housing and extends along a central axis of the housing. The cable channel includes at least one cable pathway configured to receive one or more cables.

SCRUBBER FOR GEOTHERMAL POWER GENERATION AND GEOTHERMAL POWER GENERATION SYSTEM THEREWITH

Resumen de: US20260027505A1

A scrubber for geothermal power generation, includes a treatment container, a drainage pipe, and a cooling mechanism. The treatment container separates geothermal steam into a separated gas and a separated liquid by treating the geothermal steam with a treatment liquid and has a steam supply opening to which the geothermal steam is supplied, and a gas release opening from which the separated gas is released. The drainage pipe is placed below the treatment container to discharge the separated liquid. The cooling mechanism cools a portion of the treatment container between the steam supply opening and the drainage pipe.

PACKER AND UNSEALING METHOD THEREOF

Resumen de: US20260028891A1

The present invention proposes a packer, comprising a central tube (1), an outer surface of which is provided with a first prefabricated groove (11); a rubber cylinder unit (2), comprising a rubber cylinder assembly (21), an upper rubber cylinder seat (22) and a lower rubber cylinder seat (23), a slot (221) being formed in an inner wall surface of the upper rubber cylinder seat; an upper anchoring unit (3) and a lower anchoring unit (4) arranged at both ends of the rubber cylinder unit, respectively, the upper anchoring unit comprising an upper cone (31) and an upper slip (32), and the lower anchoring unit comprising a lower cone (41) and a lower slip (42); and an unsetting mechanism (5), comprising a connecting sleeve (51), wherein through grooves (511) are arranged on the connecting sleeve, and one unsetting block (52) is arranged in each through groove.

HIGH THERMAL COEFFICIENT GROUT COMPOSITIONS AND METHODS THEREFOR

Resumen de: US20260028271A1

A high-thermal conductivity grout composition is provided. The composition includes a grout mixture including a cementitious material, a retarder, and a high-thermal k material that advantageously can form a pumpable slurry upon admixture with water. The retarder is present in an amount effective that delays setting of the grout mixture at a target location having a geostatic target temperature of at least 300° F. for at least two hours. The high-thermal k material is present in an amount effective such that the grout mixture has, upon setting at the target location, a thermal conductivity of at least 1 W/m° K.

GROUNDWATER HEAT EXCHANGER HAVING A CABLE CHANNEL

Resumen de: EP4685413A1

A groundwater heat exchanger includes a plurality of heat exchange pipes, a housing and a cable channel. Each of the heat exchange pipes is configured to receive a loop fluid flow. The housing has an interior chamber that contains the heat exchange pipes and defines a groundwater passageway that is configured to receive a groundwater flow. The cable channel is formed on an exterior of the housing and extends along a central axis of the housing. The cable channel includes at least one cable pathway configured to receive one or more cables.

Geothermal heat transfer system

Resumen de: GB2700388A

A geothermal heat extraction system comprising: a heat transfer column F placed within a borehole, the column formed of a plurality of preformed cartridges containing a heat dissipating material, the cartridges connected by a heat transfer sub containing a heat transfer plug; and a heat exchanger X connected to the surface end of the column. The heat dissipating column may be graphite or aluminium oxide and may be in a solid or a granular form. The column may be surrounded by casing S comprising a graphene pipe or graphe foil wrap encased in a steel or composite tubing. Figure 2

DEVICE FOR EXCHANGING GEOTHERMAL ENERGY WITH AN AQUIFER WHICH IS NEAR THE SURFACE, AND THERMAL POWER STATION COMPRISING AT LEAST ONE SUCH DEVICE

Resumen de: WO2024194342A1

The invention relates to a device for exchanging geothermal energy with an aquifer which is near the surface for an operation in a thermal power station using an exploitation well (1) for conveying groundwater out of the aquifer (3) through at least one exploitation line (7) and using an injection well (4) for injecting the conveyed groundwater into the aquifer (3) through at least one injection line (9), wherein the at least one exploitation line (7) and the at least one injection line (9) are connected together via a primary line (17) in order to transfer water. The invention is characterized in that the exploitation well (1) has at least one horizontal exploitation section (6) at the aquifer-side end (12) thereof, the at least one exploitation section (6) is operatively connected to at least one exploitation line (7) in order to convey water out of the aquifer (3), and a filter tube (2) is arranged within the at least one exploitation section (6).

一种预制能源桩

Resumen de: CN121407555A

本发明公开了一种预制能源桩，涉及预制桩技术领域，包括上桩体和下桩体，所述上桩体和下桩体内固定连接有介质管道。本发明通过安装有上连接件、中间连接件、下连接件，实现桩体与桩内介质管道的快速对接，解决多段桩体内介质管道对接困难的问题，实现工厂预制与现场装配的协同，提高施工效率。

地热能换热系统及其布井压裂制备方法

Resumen de: CN121407914A

本发明涉及一种地热能换热系统及其布井压裂制备方法，地热能换热系统，包括分别布置于岩石的注入水平井、采出水平井及直井，所述注入水平井具有相对的注入竖直段和注入水平段，所述采出水平井具有相对的采出竖直段和采出水平段，所述注入水平段在所述采出水平段下方，所述注入水平段通过若干第一压裂裂缝连通所述采出水平段，所述直井的底部比所述采出水平段深，所述直井的底部通过若干第二压裂裂缝连通所述采出水平段。上述地热能换热系统，形成联合注采井，获得足够大的裂缝表面积来确保压裂裂缝与注入流体的热交换能迅速有效实现，能够提高换热效率，还能够提高采出井温度和流量，这对于深层地热资源的开发利用将发挥重要的技术支撑作用。

中低温深度取热的吸收式冷热双工况级联系统及其运行方法

Resumen de: CN121408874A

本发明涉及一种中低温深度取热的吸收式冷热双工况级联系统及其运行方法，包括地热一次侧取热单元、双热泵级联单元、用户端及冷却塔，地热一次侧取热单元与双热泵级联单元形成“串联取热降温+串联升温提位+多源并联混合”的协同模式，能够同时获得60‑80℃供暖热水与7℃冷冻水，提供供热、制冷双工况运行。本发明以第二类吸收式热泵将地热中温直接作为驱动热源，无需电压缩机；再与第一类吸收式热泵级联，使井口出水进一步放热，将回灌温度压低至约20℃再进行回灌，实现“多用热”；同时提供用户所需的供热/冷冻输出；通过阀门与循环泵的联动，仅以小功率泵耗即可完成工况切换与能量分配，达到少耗电、深度取热的目标。

一种多结构耦合的土壤长周期储热装置

Resumen de: CN121409025A

本发明公开了一种多结构耦合的土壤长周期储热装置，属于可再生能源储能技术领域。该装置包括圆柱状土壤储热体、短期蓄热水箱以及高温分集水系统和低温分集水系统。土壤储热体在径向上划分为中心区、中间环区和外周区，中心区和中间环区布置U型管结构的浅层储热井，外周区布置同轴套管结构的中深层储热井，并形成内密外疏的布局。高温分集水系统将高温工质优先导入中心区及外周区储热井，低温分集水系统将低温工质导入中间环区储热井，从而在地下主动构建“高‑低‑高”的温度场梯度。这种结构利用外围低温区形成热屏蔽效应，并结合顶面保温板，有效抑制了径向和向上的热损失，显著提高了跨季节储热效率。

基于地质分层的深浅耦合地源热泵系统优化设计方法

Nº publicación: CN121413338A 27/01/2026

Solicitante:

吉林建筑科技学院

Resumen de: CN121413338A

本发明涉及地热能利用技术领域，公开了基于地质分层的深浅耦合地源热泵系统优化设计方法，方法包括以下步骤：S1，获取目标场地的地质分层信息，以及各分层的热物性参数、水力参数和力学参数；S2，针对深部换热器基元和浅部换热器基元；S3，引入运行权向量，用于定义全生命周期内深、浅部换热系统承担建筑负荷的动态分配比例；S4，建立以全生命周期总成本最小化为目标函数的优化模型；S5，采用优化策略求解所述优化模型，获得最优解；S6，根据所述最优解，输出一体化优化设计方案。通过将物理布局设计与动态运行策略进行一体化协同优化，全面考虑了地层热－水－力耦合效应，实现全生命周期成本的最小化。