Energia geotèrmica

一种井下循环取热系统及方法

Resumen de: CN119289537A

本发明提供了一种井下循环取热系统及方法，属于地热开发与石油工程交叉领域。所述系统包括套管，以及设置在套管内的地层水井下循环组件和井下换热装置；所述井下换热装置与地层水井下循环组件连接；地热水储层中的地层水沿地层水井下循环组件进入到井下换热装置中，换热后的地层水沿地层水井下循环组件回灌到地热水储层中，形成循环取热。本发明通过井下地层水循环组件，使得地层水完全在井下循环，而不与外界接触，进而在一定程度上减少了输送过程中对地层水的污染，尽可能避免造成地热井岩层空隙的堵塞；本发明通过侧钻分支井段实现了单井的地层水同层回注，避免了打多口井，节约了钻井成本。

埋設管

Resumen de: JP2024015378A

To provide a heating medium transfer pipe that transfers a medium and can enhance thermal insulation capacity in order to effectively use heat obtained from a geothermal field on the ground by using the medium, and a geothermal power generation system and a geothermal power generation method that use the heating medium transfer pipe.SOLUTION: A heating medium transfer pipe 10 (medium injection pipe 50, heating medium take-out pipe 80) transfers a medium (for example, mainly water, oil, etc.) to the underground and recovers the medium that absorbs heat under the ground. The heating medium transfer pipes include: pipe joints 51, 55 for coupling the plurality of heating medium transfer pipes; and heating medium thermal insulation pipes 60, 90 that continuously cover the pipe joints and part of the heating medium transfer pipes in the heating medium transfer pipes and insulate heat held by the medium.SELECTED DRAWING: Figure 7

MODULAR GEOTHERMAL POWER GENERATION SYSTEM

Resumen de: WO2025007750A1

The present invention relates to the technical field of geothermal power generation, and in particular to a modular geothermal power generation system. The system comprises a plurality of thermovoltaic power generation modules, a hot water supply system and a cold water supply system; each thermovoltaic power generation module comprises at least two radiators; the radiators are arranged adjacent to each other at an interval; every two adjacent radiators are respectively a heat radiator and a cold radiator; a plurality of thermoelectric modules for thermovoltaic power generation are arranged between the two radiators; the hot water supply system is connected to the heat radiator; and the cold water supply system is connected to the cold radiator. According to the present invention, by arranging a heat radiator and a cold radiator opposite to each other to form a hot end and a cold end, and arranging thermoelectric modules therebetween, overall modularization is achieved, and the quantity in use can be adjusted according to requirements, facilitating maintenance and assembly.

HEAT CONDUCTION DEVICE, AND FOUNDATION STRUCTURE AND CONSTRUCTION METHOD THEREFOR

Resumen de: WO2025007467A1

The present disclosure provides a heat conduction device, and a foundation structure and a construction method therefor. The foundation structure comprises a foundation at least partially buried below the ground and one or more heat conduction devices; the foundation comprises a prefabricated concrete foundation and a supporting structure; the concrete foundation is arranged on a thermal insulating layer; the supporting structure is arranged above the concrete foundation and connected to the concrete foundation; the heat conduction device comprises a heat dissipation unit and a heat collection unit; the heat dissipation unit is arranged above the ground; the heat collection unit is buried below the ground; the heat collection unit is in thermal communication with the heat dissipation unit; by means of the heat dissipation unit, the heat collection unit transmits to an overground environment heat of an underground area where the foundation is located. According to the foundation structure, the exposure time of the foundation pit can be effectively shortened, the heat dissipation capacity of the foundation is reduced, and the refreezing rate of the foundation is increased, thereby improving the loading capacity and stability of an enlarged foundation.

INTEGRATED WELLHEAD DEVICE

Resumen de: WO2025008010A1

The present application relates to the technical field of wellhead devices. Provided is an integrated wellhead device, comprising a casing head body, an elevation flange and a well completion flange, which are sequentially connected from bottom to top, wherein the casing head body has a first inner cavity; a first hanger assembly and a second hanger assembly are respectively connected to upper and lower ends of the first inner cavity in a sealed manner; the elevation flange has a second inner cavity; the well completion flange is provided with a medium output hole; a heat exchange medium injection end is connected to a lower portion of the casing head body, and an exhaust end is connected to an upper end of the casing head body; and the heat exchange medium injection end and the exhaust end are in communication with an annular space. An outflow sealed flow channel for an injected fluid is formed by means of the annular space, an inner pipe, the second inner cavity and the medium output hole, thereby achieving the function of performing both liquid injection and mining in a single well. A heat exchange medium is directly injected, and then directly flows through the outflow sealed flow channel, thereby realizing the outflow of the heat exchange medium. The integrated wellhead device can be specifically and quickly adapted for cyclic heat exchange in abandoned wells or idle geothermal wells, the overall technical solution is convenient to implement, and the transformation and a

GEOTHERMAL POWER FROM SUPERHOT GEOTHERMAL FLUID AND MAGMA RESERVOIRS

Resumen de: MX2024010558A

System, method, and apparatus for harnessing geothermal power from superhot geothermal fluid (SHGF) and magma reservoirs. An exemplary apparatus can include a well screen coupled to an end of a casing string. The well screen, which is at least partially submerged within an underground reservoir, defines a volume in the underground reservoir that can be filled with superhot geothermal fluid. A slidable casing is aligned coaxially with the well screen and configured to be repositioned relative to the well screen. A draw pipe extending through the slidable casing is configured to convey SHGF from the underground reservoir towards the surface in response to the slidable casing being repositioned to obstruct more of a set of apertures in the well screen and an increase in pressure within a cavity of the slidable casing.

中深层无干扰地热系统的操作运行方法

Resumen de: CN119268150A

本发明涉及一种中深层无干扰地热系统的操作运行方法，包含：设置第一发泡部，通过首先注入地热井的第一流体原料经发泡固化形成的第一发泡材料所形成第一发泡部；设置第二发泡部，通过后续注入地热井并附着于第一发泡材料上方的第二流体原料经发泡固化形成的第二发泡材料形成第二发泡部；以及设置第三发泡部，通过最后注入地热井并附着于第二发泡材料上方的第三流体原料经发泡固化形成的第三发泡材料形成第三发泡部；第一发泡部和第三发泡部使用时分别与地热井中已有的地热水和从地热井的入口输入的进水接触并起到隔水密封作用，第二发泡部连接在第一发泡部与第三发泡部之间并起到柔性可变形连接作用。实现了更好的地热井通道适应性和密封效果。

一种基于地热能与储能的能源桩融雪防冰装置

Resumen de: CN119268149A

本发明提供一种基于地热能与储能的能源桩融雪防冰装置，涉及融雪防冰装置领域。该基于地热能与储能的能源桩融雪防冰装置，包括地热收集装置、储能装置和防冻装置，所述地热收集装置设置在储能装置的前端，所述防冻装置设置在储能装置的顶端，所述蒸汽压缩机底端固定连接有蒸汽排出管，所述能源桩侧壁靠上方位置固定连接有真空泵，所述蛇形盘管另一端固定连接有冷媒储存罐，所述冷媒储存罐底端中部固定连接有冷媒加入管，所述换热管内侧壁填充有热介质。通过设置地热收集装置，有效的提高对资源的利用率，通过设置储能装置，初步的将热能转换为机械能，为能量的存储提供便利，通过设置防冻装置，有效的降低冬天路面除雪的运营成本。

地中熱利用冷暖房システム

Resumen de: JP2021081176A

To build an air conditioning system using earth thermal with installation cost and running cost reduced.SOLUTION: An air conditioning system using earth thermal and sunlight comprises a groundwater pumping well, a groundwater infiltration means (well, infiltration basin, permeable pavement), a reservoir, a solar power panel, a heat exchanger, and an air conditioning facility in a building. The air conditioning system is configured to use electricity generated by the solar power panel to drive a pump to pump up groundwater and supply it to the reservoir; exchange the heat of the water in the reservoir with the heat for heating and cooling the inside of the building by the heat exchanger; and return the water overflowing from the reservoir to the ground.SELECTED DRAWING: Figure 1

一种单井换热系统及控制方法

Resumen de: CN119268151A

本发明涉及一种单井换热系统及控制方法，属于地热能开发技术领域。所述单井换热系统包括内管、外管和热交换器，外管套设于内管外，内管外壁与外管内壁之间形成进水通道，内管的内部形成出水通道，出水通道的顶端通过管道连接热交换器的一端，进水通道的顶端通过管道和循环泵连接热交换器的另一端，进水通道的水在内管底端进入内管内；内管的截面为正方形，内管具有4个侧面，2个侧面相交处设置有控制线缆过孔。本发明利用了井中段的地热，提高了中层地热的利用率，并且增加了深层的地热储能。

一种用于燃气蒸汽联合循环的再生能源冷启动系统

Resumen de: CN119244337A

本发明公开了一种用于燃气蒸汽联合循环的再生能源冷启动系统，包括可再生能源聚热取热装置和熔融盐储热闪蒸装置；所述再生能源聚热取热装置包括熔盐加热器和再生能源热能装置，所述熔盐加热器的吸热侧工质循环管路连接再生能源热能装置；所述熔融盐储热闪蒸装置包括设置在熔盐加热器放热侧工质循环管路上的低温熔盐罐、高温熔盐罐和闪蒸器；所述闪蒸器的汽水侧通过机组预热循环管路连接燃气蒸汽联合循环机组的余热锅炉和蒸汽轮机；该系统利用太阳能聚热，深层地热能取热，加热熔融盐储热，再在联合循环机组冷态启动前，释放储热，闪蒸机组给水，制备暖机蒸汽，节省了启动锅炉燃料及厂用电，促成了机组启动过程中燃气轮机与汽水系统的解耦，极大的提升了机组冷态启动的优化效果。

一种高效开采地热资源的换热套管装置及方法

Resumen de: CN119245226A

本发明公开了一种高效开采地热资源的换热套管装置及方法，涉及能源回收设备技术领域。本发明包括地热层，所述地热层内部安装有地热管，所述地热管表面底部安装有吸热金属片；所述地热层顶部设置有循环组件，循环组件包括主水箱。本发明通过循环组件的设置，可以对地热层内的热能进行循环回收，工质循环流体进入地热管内时，使其在地热流体周围形成对流，实现热量传递，有效提高热能的利用效率，通过分流组件的设置，可以对第一循环管和第二循环管的开合进行控制，通过改变第二循环管的循环方向，可以将工质循环流体集中导入副水箱，方便在外部低温环境中使用，进一步提高热能的利用效率。

一种基于定型相变材料回填的能源桩结构及其运行方法

Resumen de: CN119245227A

本发明提供一种基于定型相变材料回填的能源桩结构及其运行方法，由内向外依次包括桩芯注热基材A、取热热屏基材B以及混凝土外壳；桩芯注热基材A中设置有注热管，取热热屏基材B中设置有取热管；取热热屏基材B内接桩芯注热基材A，取热热屏基材B外接混凝土外壳；桩芯注热基材A、取热热屏基材B均为采用定型相变材料；取热热屏基材B采用渐近相变，从而解决现有浅层土壤源热泵能源桩供热供冷时存在的地下冷热负荷不平衡、地温场失衡、桩间热干扰严重、地下传热效率低、系统供热供冷能力及能效不及预期且逐年降低等问题。

Joints for Pre-Cast Driven Piles

Resumen de: US2025003168A1

A first part of a joint for joining pre-cast driven geothermal pile segments comprises a cap having an end plate and a peripheral wall extending from a periphery of the end plate, the end plate and peripheral wall defining a volume; and at least two apertures passing through the cap, wherein each aperture provides a passage from an inside of the cap to an outside of the cap; and wherein each aperture is provided within a recess in the peripheral wall such that each aperture is thereby recessed within the volume defined by the end plate and the peripheral wall. The apertures being recessed ensures that they, and any fluid connection made thereat, are shielded from any damage and the harsh forces involved in the installation of the driven pile segments.

COMPRESSED GAS ENERGY STORAGE SYSTEM USING A GEOLOGICAL THERMAL STORE

Resumen de: WO2025006546A1

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.

CONDUIT MODULE COUPLED WITH HEATING OR COOLING MODULE

Resumen de: US2025003609A1

A heating and cooling system for use with hot, cold and source fluid circuits. A conduit module couples a heating/cooling module with the fluid circuits. The conduit module includes four three-way valves to communicated fluid from and to the fluid circuits to first and second heat exchangers in the heating/cooling module. The first heat exchanger is used to heat a fluid flow and the second one chills a second fluid flow. The conduit module simultaneously supplies a hot fluid flow to a hot fluid circuit and a cold fluid to a cold fluid circuit. The source fluid is routed by the conduit module. A method of circulating fluid is also disclosed.

METHOD AND SYSTEM FOR IDENTIFYING AQUIFER FISSURE SEEPAGE CHANNEL

Resumen de: WO2024148852A1

A method and system for identifying a heterogeneous aquifer fissure seepage channel. By simply testing a ground depth-temperature profile in a continuous water flow and determining an aquifer fissure seepage channel by means of a ground temperature gradient, the test is economical and easy to perform on-site; by performing identification on an aquifer fissure seepage channel by using a distributed temperature sensing system and a pumping system, testing can be performed after directly connecting an optical cable and the distributed temperature sensing system, and operation is simple and convenient; and after testing is finished, the optical cable can be recycled and reused, and test costs are low.

一种复合热泵系统

Resumen de: CN119222837A

本发明提供一种复合热泵系统，其包括热泵机组系统、水源热泵系统和地源热泵系统；热泵机组系统包括串联设置的第一换热器和第二换热器；水源热泵系统包括抽水井，第一换热器具有第一换热流路，第一换热流路中的流体流向与第一换热器中的冷媒流向相反；地源热泵系统包括地埋管组，地埋管组埋设在土壤中，抽水井设置在地埋管组的管簇中间，第二换热器具有第二换热流路，第二换热流路中的流体流向与第二换热器中的冷媒流向相反。本发明能够根据室外环境温度的变化，通过调整水源和地源热泵的运行，对冷媒进行两次换热，适应不同的气候条件，促使与土壤中的流体强制流动换热，加快土壤中温度场恢复平衡。

一种地热资源同井注采循环利用方法及装置

Resumen de: CN119221873A

本发明提供一种地热资源同井注采循环利用方法及装置，涉及地热资源同井注采循环领域。该地热资源同井注采循环利用方法，包括，包括：a.在指定地点钻井以获取地下热能资源，b.安装热能回收装置，用于从地下水中提取热能，c.通过传感器和控制系统监测地下水流和地热能传输过程。通过精确的地下水流动监测和实时调整热能回收装置的操作参数，能够最大化热能回收效率，基于地质特征的分析和地下水流动模拟，有效预测和评估可能的地下水污染风险，从而采取针对性的预防措施，减少环境影响，系统运行时采用的地表覆盖和热能释放控制措施，有效减少了对周围环境的不利影响，进一步提升了系统的可持续性和环保性。

基于EGS地热直井-水平井开发方法、装置、设备及介质

Resumen de: CN119222814A

本发明公开了一种基于EGS地热直井‑水平井开发方法，包括：选取废弃水平井；基于区域取水量需求统计值确定所述废弃水平井的最优利用长度；在废弃水平井的最优利用长度的范围内部署直井，形成直井取水水平井回灌井网；基于室内物理模拟地热开发划分阶段，对换热过程中阶段参数进行优化，计算不同阶段的直井取水量。本发明还提供了一种基于EGS地热直井‑水平井开发装置、设备及介质。本发明实用性强，可实现废弃水平井再利用及提高潜山热储热利用率的目的，建立潜山地热开发新模式。

一种地热污水余热太阳能耦合利用装置

Resumen de: CN119222807A

本发明公开了一种地热污水余热太阳能耦合利用装置，包括地热资源开发系统、污水余热换热系统、太阳能再热系统、加热炉补热系统、原油加热系统，所述地热资源开发系统出水端与污水余热换热系统进水端相连，所述污水余热换热系统出水端通过循环水泵与太阳能再热系统的板式换热器进水端相连，所述板式换热器出水端与加热炉补热系统进水端或原油加热系统进水端相连，所述加热炉补热系统出水端与原油加热系统进水端相连，所述原油加热系统出水端连回至地热资源开发系统进水端。此装置具有污水余热利用率高、光热转换效率高、运行成本低、自动化程度高、故障率低、安全环保、实用价值高等优点。

一种地热小井距取灌开发方法及系统

Resumen de: CN119222813A

本发明公开了一种地热小井距取灌开发方法及系统，涉及地热开发技术领域，所述方法包括：步骤S101、开展部署区砂体叠置关系及展布特征研究，确定热储砂空间展布规律；步骤S102、根据热储砂空间展布规律，对小井距取灌井网进行设计；步骤S103、根据小井距取灌井网设计结果，对小井距取灌井距及冷突破期限进行优化；步骤S104、对小井距取灌井对间歇开发方式进行优化。本发明依托精细热储描述研究，可有效改善取灌连通性，并通过取灌参数优化及间歇方式，改善小井距取灌冷突破的问题，从而达到提高热利用率的目的，最终可达到大幅度改善复杂热储砂体叠置而导致的取灌连通差的问题。

一种中空夹层钢管混凝土加劲混合能源桩结构及施工方法

Resumen de: CN119196954A

本发明涉及地源热泵领域，具体涉及一种中空夹层钢管混凝土加劲混合能源桩结构及施工方法，桩结构包括：核心中空夹层钢管混凝土构件，包括同心设置的内钢管和外钢管，内钢管和外钢管之间浇筑有核心混凝土；外包钢筋混凝土构件，包括钢筋笼和外包混凝土，钢筋笼绑扎于外钢管外侧，钢筋笼外围布设土工织物袋，外包混凝土通过土工织物袋浇筑形成；热泵交换管，包括相互连通的热泵交换螺旋管和热泵交换直管，热泵交换螺旋管围绕钢筋笼设置，热泵交换直管铺设于内钢管的中空区域。本发明结合中空夹层钢管混凝土加劲混合桩技术和地源热泵技术，加设的外包钢筋混凝土构件可以提供较强承载力，提升核心中空夹层钢管混凝土构件和热泵交换系统的抗腐蚀能力。

一种闭式取热系统井下强化换热方法

Resumen de: CN119196952A

本发明公开一种闭式取热系统井下强化换热方法，属于地热能开发利用领域。根据热储层深度和厚度钻入直井，下套管并固井，在套管内部设置中心保温管，套管与中心保温管之间的环形空间构成直井环空；在热储层对应的直井段进行套管侧向开窗，钻入若干分支井眼，或体积压裂形成微裂缝；在分支井眼/微裂缝内填充高导热材料，改造热储层并支撑改造后的空间，形成热储层内的高导热区域，封堵侧向的分支井眼完成热储层改造；温换热工质经由高压泵通过直井环空注入，与改造后的热储层闭式充分换热后从中心保温管内抽出，利用换热器实现地热能利用。本发明显著改善传统闭式取热系统的缺点，提升取热温度、延长取热寿命，加速中深层地热能的开发利用。

一种取灌吞吐实现低温热储的装置、方法、系统及介质

Nº publicación: CN119196955A 27/12/2024

Solicitante:

中国石油天然气股份有限公司