Resumen de: CN115839557A

一种浅层地热能耦合光储系统的零碳供能系统，包括浅层地热取（放）热系统、光伏储能系统、热泵模块、辅助冷却系统、用能模块、配电柜、电网、微网控制平台，所述电网连接配电柜，并且通过逆变器与光伏组件和储能单元连接；所述配电柜通过第一配电回路、第二回路、第三配电回路、第四配电回路分别与热取（放）热系统、辅助冷却系统、热泵模块、用能模块电源接口连接；本发明专利能有效解决建筑空调负荷引起的标煤消耗量过大以及碳排放量过高的问题，最大程度利用可再生能源，通过合理配置光、储、地热系统为建筑稳定提供冷热电等能源，实现零碳建筑。

Resumen de: US2023090536A1

A stainless steel pipe of a predetermined composition is provided that comprises N, Ti, Al, V, and Nb so as to satisfy the predetermined formula, the stainless steel pipe having an axial tensile yield strength of 757 MPa or more, an axial compressive yield strength/axial tensile yield strength ratio of 0.85 to 1.15, and a microstructure that is 20 to 80% ferrite phase by volume with the remainder containing an austenite phase, the stainless steel pipe having pipe end portions at least one of which has a fastening portion for an external thread or an internal thread, and having a curvature radius of 0.2 mm or more for a corner R formed by a bottom surface of a thread root and a pressure-side flank surface of the thread, measured in an axial plane section of the fastening portion.

Resumen de: CN115822744A

一种利用地热和液化天然气的多级ORC‑TEG冷热电联产系统及方法，属于地热能与液化天然气冷能回收利用技术领域。本发明解决了现有的地热能及LNG冷能利用不充分以及地热与LNG之间温差较大导致火用损失较大的问题。地热井与热源换热器之间以及地热井与供热换热器之间分别通过管路连接形成地热系统；热源换热器、第一膨胀机、第一蒸发器及第一泵体依次通过管路连接形成一级ORC循环系统；热源换热器、第二膨胀机、第二蒸发器及第二泵体依次通过管路连接形成二级ORC循环系统；LNG储罐、第三泵体、第一蒸发器、第四泵体、第二蒸发器、第三膨胀机及空气冷却器依次通过管路连接形成LNG输送系统。采用多级压缩，减小制冷剂与LNG之间的温差，提高系统的火用效率。

Resumen de: CN115823758A

本发明涉及一种中深层同轴套管式地埋管换热的高效输能系统，包括来自地下土壤的热量、同轴套管式地埋管换热器外管、冷流体、热流体、同轴套管式地埋管换热器保温内管、从内管向外管的传热，来自地下土壤的热量加热同轴套管式地埋管换热器外管中的冷流体、随着深度的不断增加，冷流体在井底达到最高温度变为热流体，并通过同轴套管式地埋管换热器保温内管回达井口，整个的热量交换过程中，从同轴套管式地埋管换热器保温内管向同轴套管式地埋管换热器外管的传热大幅降低。该中深层同轴套管式地埋管换热的高效输能系统，降低热流体的热量损耗提高每延米换热量，从而增大热流体的出水温度，提高系统换热效率。

Resumen de: CN115823757A

本发明涉及一种多管回流式中深层地热能单井取热不取水供热系统，在地热井内安装有井下换热器，该井下换热器上部连接供热供回水管，下部连接地热循环水管，地热循环水管插装至地下取水层，在所述地热循环水管的内部设置有泵室，在所述地热循环水管的下部取水层上部四周同轴围绕设置有若干个单元管束组成的回流管组，所述的回流管组通过固定挡水板安装在所述的地热循环水管上。本发明创新回流管组及挡水密封板、内置泵室、井下换热器结构，在取热过程中，完全没有地热水流出井口，实现了真正意义上的“取热不取水”，在高效实现换热取热的同时大幅度减少潜水泵的功耗，节约电能和运行成本。

Resumen de: CN115823666A

本发明公开了一种提高土壤蓄热体传热效率的方法，包括以下步骤：将地面热空气引入到保温层以下的传热通道中；热空气与传热通道、进行显热交换；显热交换一段时间后，显热交换、潜热交换同时存在进行换热；随着潜热交换进行，增大土壤传热系数；控制传热通道中水膜的出现；在温度差的影响下，进行传热换热；在湿度差的影响下，进行传质换热。本发明采用传热通道结构控制法抑制水膜的出现，使土壤吸收空气热量的同时也吸收了水分，进而土壤蓄热体内部既有显热交换又有潜热交换，传热传质过程同时进行，增大土壤传热系数，强化传热，提高土壤传热效率。本发明在温度梯度和含水率梯度两个驱动力的共同作用下进行传热，提高土壤传热效率。

Resumen de: CN115808025A

本发明公开了一种提高中深层砂岩地热回灌效率的回灌新方法，包括以下步骤：S1、将地热水从开采井抽入预处理系统内；S2、将参于热交换的地热水导入地热利用系统内；S3、通过水泵将地热尾水抽入粗过滤系统内；S4、打开蝶阀将粗过滤系统内的地热尾水抽入精过滤系统内；S5、打开蝶阀将过滤后的地热尾水导入排气罐内；S6、将排气罐内的地热尾水导入变压系统中；S7、根据回灌井以及砂层状况选择回灌方式；S8、打开蝶阀将地热尾水回灌到回罐井内；S9、记录回灌井内的各项数据并进行系统分析；通过设置粗过滤系统和精过滤系统对地热尾水内的砂石或颗粒悬浮物以及化学沉淀物进行清除，避免砂石或颗粒悬浮物以及化学沉淀物堵塞回灌井或回灌管道。

Resumen de: CN115811248A

本发明涉及地热能技术领域，尤其涉及一种基于热电效应的地热能循环发电系统和方法，系统包括：包括冷流传输装置、热流传输装置，以及具有热源输入端基底和冷源输入端基底的热电发电装置；热流传输装置用于：将利用U型井内的地热能加热后的二氧化碳输送至热电发电装置的热源输入端基底；冷流传输装置用于：将冷却后的二氧化碳输送至热电发电装置的冷源输入端基底。基于热电发电原理，利用基于地热产生的温差直接获取电能，简化地热发电工厂设计，减少占地面积，并能减少地热开发对地面及地下环境影响，提高地热能开发利用效率和效益，不存在含水层污染的风险。

Resumen de: US2023078167A1

Systems and generating power in an organic Rankine cycle (ORC) operation to supply electrical power. In embodiments, an inlet temperature of a flow of gas from a source to an ORC unit may be determined. The source may connect to a main pipeline. The main pipeline may connect to a supply pipeline. The supply pipeline may connect to the ORC unit thereby to allow gas to flow from the source to the ORC unit. Heat from the flow of gas may cause the ORC unit to generate electrical power. The outlet temperature of the flow of the gas from the ORC unit to a return pipe may be determined. A flow of working fluid may be adjusted to a percentage sufficient to maintain temperature of the flow of compressed gas within the selected operating temperature range.

Resumen de: US2023085175A1

The present disclosure describes electro-hydrofracturing (E-HF) using electrically conductive proppants and methods for hydraulic fracturing using electrically conductive proppants.

Resumen de: US2023083829A1

Systems and generating power in an organic Rankine cycle (ORC) operation to supply electrical power. In embodiments, an inlet temperature of a flow of gas from a source to an ORC unit may be determined. The source may connect to a main pipeline. The main pipeline may connect to a supply pipeline. The supply pipeline may connect to the ORC unit thereby to allow gas to flow from the source to the ORC unit. Heat from the flow of gas may cause the ORC unit to generate electrical power. The outlet temperature of the flow of the gas from the ORC unit to a return pipe may be determined. A bypass valve, positioned on a bypass pipeline connecting the supply pipeline to the return pipeline, may be adjusted to a position sufficient to maintain temperature of the flow of gas above a threshold based on the inlet and outlet temperature.

Resumen de: WO2023035054A1

A system includes an injection well, a production well, and a binary cyclesystem. The injection well has a horizontally drilled injection section traversing the geothermalreservoir, through which a cooled geothermal fluid is injected, from a surface location, into thegeothermal reservoir to be heated by the geothermal reservoir. The production well has ahorizontally drilled production section traversing the geothermal reservoir and a productionpump disposed within a vertical section. The production pump pumps the heated geothermalfluid, which enters the production well from the geothermal reservoir, to the surface location.The binary cycle system includes a heat exchanger and a turbine. The heat exchanger isconfigured to transfer heat from the heated geothermal fluid to a condensed working fluid tocreate a vaporized working fluid. The turbine, rotated by the vaporized working fluid, drives agenerator to produce the geothermal energy.

Resumen de: WO2023037033A1

Various example embodiments relate to drilling a hole using a fluid drilling system. The system (1) may comprise a drill string (2), a drill hammer (3) coupled to a lower end of the drill string (2), and a flow channel (5). The flow channel (5) may lead a fluid (7) to a bottom of a borehole (8), wherein the fluid (7) may comprise pressurized liquid and gas bubbles. The fluid (7) may drive the drill hammer (3) and flush cuttings from the borehole (8). A method for drilling a hole using a fluid drilling system (1) is also disclosed.

Resumen de: US2023079347A1

Heat exchange system on a roof of a building, with an exchange volume comprising a substrate that is partly saturated by water and covered by a vegetated surface that enhances condensation and evapotranspiration and having a heat diffusion device comprising a circulation pump and a collection network for thermal exchanges with the exchange volume.

Resumen de: US2023083056A1

A method for collecting a heated fluid from a fractured subterranean formation can include removing a fluid having a liquid phase from the fractured subterranean formation through a wellbore that is in fluidic communication with the fractured subterranean formation. The method can also include collecting from the wellbore the heated fluid having a vapor phase that is expelled from a low permeability rock matrix of the fractured subterranean formation. The method can also optionally include injecting an injection fluid having the liquid phase into the low permeability rock matrix of the fractured subterranean formation through the wellbore when a parameter falls outside a range of acceptable values.

Resumen de: EP4148342A1

The invention relates to a method and system for operating a geothermal heat mining system (3), the heat mining system (3) comprising a production line (5) through which geothermal energy is conveyed towards the earth surface using a transfer medium, an energy recovery arrangement (9) for recovering energy from the conveyed transfer medium by heat exchange, and a reinjection unit (11) for injecting back, after heat exchange, the transfer medium into earth through at least one return line (13), wherein a pressure retaining unit (15) is provided configured to retain pressure on the return line (13) in case of an operational interruption of the geothermal heat mining system (3).

Resumen de: CN115789975A

本发明提供一种基于干热岩型地热开采的循环式多层面地热井，包括：主井，由地表向下延伸至干热岩地层；分支井，分布于主井的外周且位于干热岩地层；水平井，分布于主井下方，水平井管道内具有环形通道，环形通道的进口与进水管道的下端口连通，环形通道的出口与回水管道的下端口连通，水平井位于主井的底部，分支井位于主井的外周，分支井和主井均位于干热岩地层，且分支井管道与水平井管道不共面，通过设置分支井和水平井，可增加水流的过流面积，实现了水流在立体空间内的循环流动。水流在分支井及水平井内循环流动的过程中可充分吸收干热岩地层的地热，因此，本发明具有良好的取热效果，同时为干热岩型地热的开采提供了新设想新思路。

Resumen de: CN115788367A

本发明提供一种基于浮力原理的地热钻井排水装置。所述基于浮力原理的地热钻井排水装置包括地热井；过滤机构；限位机构；排水机构，所述限位机构的侧壁连接所述吸取管；所述固定网的侧壁包裹所述土工布层，且所述固定网的侧壁安装多块所述浮板；调节机构，所述固定网的底端固定连接所述筒体，所述筒体的侧壁安装所述密封圈和所述连通管；所述密封圈的内部滑动连接所述第一连接杆，所述第一连接杆滑动连接所述第二连接杆的内部；所述第一连接杆的底端固定连接所述压缩塞，所述压缩塞滑动连接所述筒体的内部；封闭机构；压缩机构。本发明提供的基于浮力原理的地热钻井排水装置具有根据地热井内部水量改变取水口高度、防止取水口堵塞的优点。

Resumen de: CN115789976A

本发明涉及一种闭环热管式强化换热系统，在地热井内由上至下依次设置有循环水端、闭环热管换热器端和地热水端。循环水端的循环水通过闭环热管换热器端与地热水端的地热水实现热量交换后，为地面用户端供热；地热水与循环水在闭环热管换热器端完成热量交换后从闭环热管换热器端流出，流经地热井壁返回地下含水层。本发明创新闭环热管换热器结构，改变了传统井下换热器在管壁间对流换热过程，通过闭环热管内的流体循环相变，在原来仅在近壁面换热的基础上，增加了通过闭环热管实现主流空间流体的换热，闭环热管内传热工质突破了循环水管管壁两侧的冷、热边界层，大幅度降低换热热阻，实现重力作用下的自然循环强化换热过程，可大幅度提高取热功率。

Resumen de: CN115773679A

本发明公开了一种基于热管效应辅助煤热共采的系统及方法，包括自上而下的上覆地层、煤层、水热型地热储层，上覆地层上设置有蓄水池、抽水泵、缓冲罐、地面换热器；煤层沿采煤工作面开掘有巷道，上覆地层中设置有竖井，竖井和巷道的两个相对的侧壁面上分别布置有注水管线和回水管线，注水管线的上端连接地面换热器，注水管线进入巷道后通过第一动力循环泵连接增压机，从增压机输出的井下管线沿着巷道底面、侧面和顶部连续铺设，井下管线的尾端连接回水管线，回水管线的上端与地面换热器连接，井下管线、进水管线和回水管线中有换热介质。本发明在实现煤层地热高效开采的同时，降低采煤井巷的环境温度，达到治理井下热害的效果。

Resumen de: CN115773583A

本发明公开了一种无负压地热回灌装置及使用方法，属于地热回灌技术领域，包括放置在地面上的过滤装置，过滤装置包括固定安装在地面上的过滤箱，过滤装置用于对尾水进行过滤，地面上设置有稳流装置，稳流装置包括固定安装在地面上的稳流罐，稳流装置用于调节尾水的压力平衡，地面上设置有回灌稳流装置，回灌稳流装置包括固定安装在地面上的回灌井，回灌稳流装置用于控制稳流罐和回灌井的压力平衡。本发明设置稳流装置和回灌稳流装置能够使得地热进行均压回灌，过滤装置的蛟龙机构通过尾水的流动来驱动动作，无需使用额外的动力源，环保节能；同时通过尾水的流动来实现稳流罐和回罐井下部的压力平衡，无需使用电能，环保节能。

Resumen de: CN115773076A

本发明公开了一种地热井泥浆循环冷却系统及方法，冷却系统包括有套管型换热箱、散热器、板式冷却箱、第一配浆箱、第二配浆箱、水箱和岩屑处理箱，其中套管型换热箱的进口通过第一管路与地热井顶端的密封装置相连通，地热井内的泥浆通过密封装置和第一管路能够被输送到套管型换热箱内，冷却方法为：步骤一、准备钻进；步骤二、打开第一泥浆泵；步骤三、打开第二泥浆泵；步骤四、泥浆进口进入板式冷却箱；步骤五、泥浆经过板式冷却箱二次冷却；步骤六、开始钻进；步骤七、储存至岩屑处理箱内；步骤八、储存至岩屑处理箱后进行处理；步骤九、直至钻孔作业结束；步骤十、对整套装置进行清洗。有益效果：极大地节约了资源，减少了环境的污染。

Resumen de: CN115773528A

一种基于地热能季节性的梯级利用的多联产装置与方法。所述装置包括气液分离装置、发电装置、冬季供热装置、夏季供冷装置和海水淡化装置；所述气液分离装置包括闪蒸罐、蒸汽出口和液体出口；所述发电装置包括蒸汽轮机和第一三通阀；所述冬季供热装置包括第二三通阀；所述夏季供冷装置包括发生器和第三三通阀；所述海水淡化装置包括加热器；所述闪蒸罐上分别设置有蒸汽出口和液体出口；所述蒸汽出口通过管道与蒸汽轮机连接；所述液体出口通过管道与第一三通阀连接；所述第一三通阀通过管道与第二三通阀连接；所述第二三通阀与发生器连接；所述发生器通过管道与第三三通阀连接；所述第三三通阀与加热器连接。

Resumen de: AU2021330699A1

A method for drilling a geothermal well in a subterranean zone includes drilling, with a drill string, a wellbore of the geothermal well in the subterranean zone. An inherent temperature of the rock adjacent a rock face at a downhole end of the wellbore is at least 250 degrees Celsius. While drilling, a drilling fluid is flowed at a temperature at the rock face such that a difference between the inherent temperature of the rock adjacent the rock face and the temperature of the drilling fluid at the rock face is at least 100 degrees Celsius.

Resumen de: US2023076219A1

A system and method of harvesting geothermal energy in a subterranean formation includes providing an injection wellbore that extends into the subterranean formation, positioning a plurality of selectively opening sleeves in the injection wellbore spaced apart the subterranean formation, providing at least one producing wellbore that extends into the subterranean formation in a predetermined location proximate to the injection wellbore, and fracturing the subterranean formation in a plurality of locations proximate to the plurality of selectively opening sleeves to enhance a fluid pathway between the injection wellbore and the at least one producing wellbore. Fluid is injected down the injection wellbore at a first temperature, and the fluid is produced from the at least one producing wellbore at a second temperature higher than said first temperature.