Geothermal energy

一种利用地热能的取回水共用井

Absstract of: CN121677188A

本发明公开了一种利用地热能的取回水共用井，本发明中，在井壁中设置有较粗的回水管，回水管贴合井壁设置，回水管中设置有滤水段，地下出水层的水通过井壁的砾石及滤水段的过滤后流入回水管中，取水管插入回水管中，水泵设置在取水管底部，水泵将回水管中的水抽出供空调系统换热使用，换热后的尾水再通过回水管顶部的连接管流回井中，冬季井中水温高于外界环境温度，可以为空调系统提供热源，夏季井水中的水温低于外界环境温度，可以为空调系统提供冷源，尾水回流井中及时补给，实现了同井“取热不取水”，使单井中水源达到动态平衡，可维持含水层的压力稳定，从而保证地热系统的换热功率长期稳定，延长地热田的使用寿命。

一种用于地热尾水回灌的反冲洗过滤装置及方法

Absstract of: CN121668781A

本发明涉及反冲洗过滤罐的技术领域，公开了一种用于地热尾水回灌的反冲洗过滤装置及方法，其中，一种用于地热尾水回灌的反冲洗过滤装置，包括壳体，设置在壳体底部的排污管、设置在壳体中心的内筒、分别设置在内筒上、下端面且连接壳体的上挡环和下挡环，以及设置在内筒外侧且连通上挡环和下挡环的多根过滤筒，还包括，旋转设置在壳体中心的转动轴，转动轴转动连接有排污臂，排污臂转动时与任一过滤筒吻合，排污臂转动连接排污管；设置在排污臂内且由反冲流体驱动的涡轮；由该涡轮驱动的离心调速器，由离心调速器在设定转速下触发的锁止释放机构；当反冲流量低至设定值时，离心调速器触发锁止释放机构，使排污管旋转至下一过滤筒下端。

一种空气源热泵蓄热与地源热泵供暖系统及使用方法

Absstract of: CN121677021A

本发明涉及一种空气源热泵蓄热与地源热泵供暖系统，涉及空调技术领域，包括地源热泵与空气源热泵，地源热泵一侧连接室内换热器，地源热泵的另一侧连接用热环路，用热环路上设有用热环路循环泵，用热环路上连接多组用热环路地埋管；空气源热泵一侧连接室外换热器，空气源热泵的另一侧连接充热环路，充热环路上设有充热环路循环泵，充热环路上连接多组充热环路地埋管；用热环路地埋管与充热环路地埋管均设置在蓄热井中；用热环路地埋管上设有用热环路截止阀；充热环路地埋管上设有充热环路截止阀。本发明采用同井双环路的蓄热井，提高了系统运行的能效和灵活性。采用跨季节蓄热模式，缓解热量季节性供需不平衡。

一种用于地铁能源管片的表面敷设管道快速安装装置

Absstract of: CN121677187A

本发明公开了一种用于地铁能源管片的表面敷设管道快速安装装置，包括基座、管道卡扣和柔性垫层，基座设置在所述管片的内表面，基座底部设有与所述管片内表面曲率相适配的曲面安置座，管道卡扣与基座可拆卸连接，用于将换热管道压紧安置在基座上，柔性垫层设置在基座与管片之间，和/或设置在基座、管道卡扣与换热管道的接触面，确保基座和换热管道的安装稳定性，管道卡扣将换热管道压紧安置在基座上，并与基座可拆卸连接，使得换热管道能在管片安装完成后，才设置在管片内表面，安装方便快速，且易于拆卸进行维护，以提高换热管道与管片配合的稳定可靠性。

一种利用煤矿地热的地下压缩空气储能装置及方法

Absstract of: CN121689576A

本发明属于地下能源存储与地热利用技术领域，尤其涉及一种利用煤矿地热的地下压缩空气储能装置及方法，包括：地下储库、地热利用系统和地面压缩发电系统。该方法通过分阶段控制地热利用系统实现高效储能：压缩阶段关闭系统，将高压空气注入储库，压缩热存于围岩；储存阶段开启系统，通过热吸收模块汲取地热，经热传递模块加热空气提升势能；放电阶段关闭系统，释放空气发电并从围岩吸热。本发明将地热补给与储能过程耦合，显著提高发电时空气的初始温度和势能，解决传统方法热能管理失衡问题，实现地热资源高效利用与放电量提升。

一种中高温地热井旋风式井口生产装置

Absstract of: CN121677189A

本发明公开了一种中高温地热井旋风式井口生产装置，其包括：立式的旋风闪蒸罐，用于进行汽水分离，旋风闪蒸罐的中部设置有用于接收地热两相流的两相流入口；卧式的热水稳压罐，用于接收旋风闪蒸罐分离出的热水并稳定其液位与压力；旋风闪蒸罐的底部通过热水管道与热水稳压罐连接，旋风闪蒸罐的上部通过平衡管与热水稳压罐的顶部连接，旋风闪蒸罐内设置有竖直的蒸汽管道，蒸汽管道的上端靠近旋风闪蒸罐的顶部，蒸汽管道的下端从旋风闪蒸罐的底部密封穿出，热水稳压罐的底部设置有第二热水出口；本方案可实现动态闪蒸面的动态稳定，并确保了热水中无蒸汽、蒸汽中无液体，实现水汽的彻底分离。

控制装置、地热利用系统、控制方法、程序

Absstract of: TW202519804A

A control device according to the present invention comprises: an operation control unit that can switch between a first cold storage mode that supplies heat stored at a hot water well to a cooling tower without the mediation of heat source equipment and stores cold obtained from the cooling tower at a cold water well without the mediation of the heat source equipment, a second cold storage mode that supplies heat stored at the hot water well to the cooling tower via the heat source equipment and stores cold obtained from the cooling tower at the cold water well via the heat source equipment, a first cold emission mode that supplies cold stored at the cold water well to equipment without the mediation of the heat source equipment, and a second cold emission mode that supplies cold stored at the cold water well to the equipment via the heat source equipment; a calculation unit that calculates an integrated cold storage amount; a prediction unit that predicts a necessary cold storage amount; and a mode determination unit that determines whether control is to be performed in the first cold storage mode or the second cold storage mode on the basis of the integrated cold storage amount and the necessary cold storage amount.

一种中深层地热高效开发装置

Absstract of: CN121655141A

本发明公开一种中深层地热高效开发装置，包括主井，还包括沿轴向设置在主井内的取热装置；取热装置包括同轴套设的外管组件和内管组件，外管组件与内管组件之间形成过流通道；外管组件包括由上向下同轴连通设置的孔口管、上段表层套管、下段表层套管、无孔套管和滤水管；孔口管和无孔套管设置在非取水地层内，滤水管设置在取水地层内；内管组件包括由上向下依次同轴连通设置的取水主管、保温泵管、第一保温管、插接管、承插管和第二保温管。本发明将潜水泵安装在第一保温管内，配合内管组件，在以水热型方式开采中深层地热时，实现了深层地热开采时地热水不与浅部低温地层接触和上流期间的全程保温，大大减少深部地热水与浅部低温地层的换热量，提高了取热功率。

供暖制冷系统及其控制方法

Absstract of: CN121655017A

本发明公开了一种供暖制冷系统及其控制方法。供暖制冷系统包括控制系统、地热系统、室外换热器和冷热供给系统；地热系统用于供暖模式的热量生产和制冷模式的热量埋存，并向控制系统传输运行过程中的第一物理量数据；冷热供给系统用于通过室外换热器与地热系统进行热交换，并向控制系统传输运行过程中的第二物理量数据和用户侧的目标需求温度；控制系统用于根据用户侧当前温度和目标需求温度，判定运行模式；控制系统还用于根据第一物理量数据、第二物理量数据和目标需求温度，向地热系统和冷热供给系统输出控制信号。本发明能够提升供暖制冷系统的用能效率，并且能够避免因供需不匹配而造成的热能、电能浪费的问题。

一种中深层地源二氧化碳高效热能采集与转换系统

Absstract of: CN121655143A

本发明提供一种中深层地源二氧化碳高效热能采集与转换系统，所述中深层地源二氧化碳高效热能采集与转换系统包括地热井和地面能量枢纽模块，地热井包括内流道以及外流道；地面能量枢纽模块包括压缩机组、用户侧换热器、流路控制阀组和节流组件，流路控制阀组设有多个接口，地热井、压缩机组、用户侧换热器和节流组件与对应的接口连通，其中，流路控制阀组通过切换内部流道，使得多个接口以第一方式导通从而形成供暖模式，或者，使得多个接口以第二方式导通从而形成制冷模式。本发明实施例的中深层地源二氧化碳高效热能采集与转换系统，实现了地热资源的全年利用，提升了地热井的利用率。

中深层地热能供热系统及运行方法

Absstract of: CN121655144A

本发明提供了一种中深层地热能供热系统及运行方法，该装置包括同轴套管换热器、回热器、第一压缩机、第一冷却器、节流阀组和热泵循环模块，同轴套管换热器包括外管和内管，回热器与内管出口连通，热泵循环模块包括蒸发器和第二冷却器，回热器与蒸发器连通，蒸发器的吸热侧出口通过节流阀组连通至外管入口；供暖侧回水管路排出的流体分为两股并分别流向第一冷却器和第二冷却器；节流阀组包括并联设置的第一节流阀和第二节流阀，第一节流阀用于在内管出口处的流体温度大于预设阈值时开启，第二节流阀用于在内管出口处的流体温度小于等于预设阈值时开启。本发明可以提升对地热能的利用效率，满足城市集中供热的一次热网温度要求。

一种煤矿采空井老空水地热资源化利用方法及系统

Absstract of: CN121655142A

本发明涉及地热资源利用技术领域，具体涉及一种煤矿采空井老空水地热资源化利用方法及系统，利用方法包括：获取采空井中老空水的可采热参数，构建老空水地热子系统；构建中深层地热子系统；构建太阳能集热子系统、光伏驱动的水源热泵子系统；以老空水地热利用为核心、中深层地热子系统、水源热泵子系统和太阳能集热子系统耦合补热而进行多能互补供暖，为园区的零碳供暖提供保障；设计跨季节热平衡调控系统；通过物联网技术监测各系统运行过程；结合大数据分析与人工智能算法实现各系统的智慧运行、智能决策及故障预警，本发明开发了废弃矿井中老空水地热利用的新工艺，建立了园区建筑零碳供暖系统，实现了废弃矿井的资源化与无害化治理。

一种强制对流井下取热系统和方法

Absstract of: CN121655140A

本申请实施例公开了一种强制对流井下取热系统和方法，系统包括取热分支井、注入分支井、地热井井筒换热器和井下强制换热循环组件，在使用过程中，将外界流体供给到地热井井筒换热器内，与地下热流进行换热，完成换热的外界流体被采出到地面利用，在取热分支井内或周侧的地下热流与地热井井筒换热器内的外界流体完成换热后，开启井下强制换热循环组件将取热分支井之内和/或周侧的低温地下流体抽送到注入分支井处，使得取热分支井内和/或周侧的地下流体量减少，在压差作用下，地层内的地下热流会自流到取热分支井处。基于本申请实施例提供的强制对流井下取热系统无需将地下热流引至地上，能够在不开采地层热流体的情况下高效开发地层热能。

一种地源热泵系统多工况协同控制与垂直地埋管施工方法

Absstract of: CN121654801A

本发明涉及地源热泵工程技术领域，具体公开了一种地源热泵系统多工况协同控制与垂直地埋管施工方法，包括垂直地埋管施工与系统多工况控制：施工阶段通过经纬仪精准定位，4m×4m间距孔位；150mm钻头钻孔，深度103m（100m有效+3m通孔）；双U管试压下管，1.5MPa试压、分离定位管卡固定；原浆回填，实时监测压力，确保施工质量；控制阶段通过冬季供热：热泵台数按温度与负载率调节，夏季供冷：系统切换依据排热量与土壤温度，蓄能：低谷电蓄热/蓄冷的协同控制，降低能耗。本发明解决了现有地埋管施工不实、系统工况切换低效的问题，提升换热效率15‑20%，降低能耗25‑30%，适用于建筑地源热泵项目。

CONCRETE PIPE HAVING AT LEAST ONE REINFORCEMENT, METHOD FOR PRODUCING A CONCRETE PIPE HAVING AT LEAST ONE REINFORCEMENT, AND USE OF AT LEAST ONE PART OF A REINFORCEMENT OF A CONCRETE PIPE

Absstract of: WO2026052337A1

The invention relates to a concrete pipe (1) having at least one reinforcement (2). In order to make it possible to carry heat away from the concrete pipe (1) more cost-effectively, the reinforcement (2) is formed at least partially by at least one fluid line for conducting a heat transfer fluid.

DEPLOYMENT OF GEOTHERMAL SYSTEM TECHNOLOGY

Absstract of: WO2026055602A1

The present disclosure relates to systems and methods for geothermal energy systems utilizing multi-well pads to target multiple formation benches. In some examples, a geothermal energy system utilizes a multi-well pad (904) at a surface location to drill a set of horizontal wells (916,918,920,922,924,926,928,930) that extend from the surface location into a basement formation, targeting different formation benches in the basement formation. By targeting different formation benches of the basement formation from the same multi-well pad (904), the geothermal energy system achieves and maintains high production temperatures without thermal decline and reduces the environmental footprint of the geothermal energy system.

GROUND-SOURCE THERMAL SYSTEM FOR REJECTING DATA CENTER WASTE HEAT TO A FACILITY

Absstract of: US20260075761A1

A method of operating a thermal system includes receiving a data center heat with a downhole fluid, the data center heat generated by at least one heat generating electronic component of a data center. The method also includes exchanging heat between a facility and the downhole fluid via a ground-source heat pump (GSHP) to fulfill at least a portion of a thermal load of the facility. The method further includes maintaining a thermal balance of the downhole fluid with a borehole heat exchanger (BHE) implemented in a borefield.

METHODS FOR FORMING PATHWAYS OF INCREASED THERMAL CONDUCTIVITY FOR GEOTHERMAL WELLS

Absstract of: US20260071785A1

Methods for forming pathways of increased thermal conductivity in a geothermal well are disclosed. The pathways increase heat transfer efficiency in a closed loop geothermal operation. The methods comprise injecting a thermally conductive material into the annular space between a conduit in the wellbore and the formation; forming a fracture in the formation and filling it with the thermally conductive material; and putting the well in an underbalanced state and drawing the thermally conductive material back towards a port in the conduit that is in an excluded configuration to create a pathway of increased thermal conductivity. The thermally conductive material may comprise a fluid carrier and solid particles having a high thermal conductivity.

SURFACE GEOTHERMAL HEAT ENERGY CAPTURE AND STORAGE SYSTEM

Absstract of: US20260071762A1

A geothermal system exchanges heat between a target and ground which receives geogenic heat from below. Heat exchange tubing in a continuous loop within the ground receives a circulated heat exchange fluid. An insulating layer spans over the ground with a greater footprint than the continuous loop in the ground below. The insulating layer may cover an area of land of at least 400 square metres and may be formed of a synthetic heat insulating material such as recycled plastic materials so that the insulting layer has a total R factor of 30 or greater. A heat pump is operable to transfer heat from the heat exchange tubing to the target for extracting the geogenic heat from the ground for heating the target in cold seasons, and transfer heat from the target to the heat exchange tubing for storing excess heat from the target to the ground in warmer seasons.

THERMAL SYSTEM WITH EXHAUST HEAT EXCHANGER

Absstract of: US20260071775A1

A thermal system for providing thermal conditioning to a facility includes a facility air circuit for circulating a facility air throughout the facility and a downhole fluid circuit for circulating a downhole fluid. The facility air circuit is thermally connected to a heat pump for exchanging heat with the facility air. The downhole fluid circuit includes the heat pump for exchanging heat with the downhole fluid, a main loop, including a borehole heat exchanger (BHE) for exchanging heat between the downhole fluid and a geological formation, and an exhaust loop including an exhaust heat exchanger coupled to an exhaust of the facility air circuit, wherein the exhaust loop is configured to circulate at least some of the downhole fluid through the exhaust heat exchanger to exchange heat between the downhole fluid and an exhaust flow of the facility air exhausted from the facility at the exhaust.

GEOTHERMAL AND GEOPRESSURE RECOVERY SYSTEMS

Absstract of: AU2024265722A1

A geothermal power system includes a pressure exchanger fluid ically 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, where the first fluid heats a second fluid. The first fluid flows from the heat exchanger to a second inlet of the pressure exchanger. The first fluid flows in a second fluid path through the pressure exchanger 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. The first fluid flows from the second outlet to a turbine which drives a generator.

BOOSTING WELL PERFORMANCE IN GEOTHERMAL SYSTEMS

Absstract of: WO2024249453A1

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.

一种缓解热堆积地铁能源桩群的方法

Absstract of: CN121629975A

本发明公开了一种缓解热堆积地铁能源桩群的方法，沿每个能源桩的深度方向间隔分布温度传感器，用于监测桩能源桩的垂向温度梯度，在能源桩群区域的土体内布设土体温度传感阵列，用于监测土体温度，以建立能源桩群周围土体温度场的立体检测网，在每个能源桩的进水支管上设置独立调节阀，用于独立调节对应能源桩的流量，将能源桩群划分为若干控制区域，在每个控制区域内能源桩的进水或回水干管上设置区域调节阀，用于同步调节对应控制区域内所有能源桩的流量，控制器基于土体温度，调节区域调节阀的工作状态，调节能源桩群各控制区域的换热差异，并基于能源桩的垂向温度梯度，调节独立调节阀的工作状态，调节单个能源桩的换热差异，缓解热堆积效应。

一种同层异段地热取灌方法及相关设备

Absstract of: CN121631594A

本申请公开一种同层异段地热取灌方法及相关设备，涉及地热开发技术领域，所述方法包括：获取多个地热井的测井数据，所述地热井为取水井或回灌井，所述测井数据包括渗透率；将所述渗透率与四类热储层评价标准进行匹配，得到匹配结果；根据所述匹配结果进行计算得到取灌分析结果；根据所述取灌分析结果对所述回灌井和所述取水井的工作状态进行控制，所述工作状态包括不同层段的开启状态或关闭状态。

能源桩（柱）多层换热热力耦合计算方法

Nº publicación: CN121637882A 10/03/2026

Applicant:

中铁第四勘察设计院集团有限公司中国铁建股份有限公司

Absstract of: CN121637882A

本发明公开了一种能源桩（柱）多层换热热力耦合计算方法，涉及地热能利用技术领域。该方法通过获取能源桩、岩土体的分层热物性与力学参数，采用分层传热模型对能源桩及其周边瞬态温度场进行数值模拟；推导考虑非均匀各向异性介质的格林函数并对所述瞬态导热模型进行求解，获得所述计算域内任意时刻的温度场分布并计算能源桩桩身的温度应力；通过建立荷载传递模型和桩‑土接触面的剪切模型，获得桩身轴力、位移及桩‑土侧摩阻力并对能源桩的换热性能和力学安全性进行综合评估。本发明弥补了现有技术在分层介质和复杂相互作用方面分析的不足，显著提高了能源桩设计的精度和可靠性，为优化能源桩系统设计、结构安全提供了科学依据。