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PISTON AND CYLINDER ASSEMBLY OF A DOWNHOLE TOOL, DOWNHOLE TOOL WITH A PISTON AND CYLINDER ASSEMBLY

Resumen de: US2025327361A1

A piston and cylinder assembly of a downhole tool including a rotary steerable tool. The piston has an outer wall in direct sliding contact with a wall of the cylinder. The cylinder has a retainer for the piston, the retainer has a retaining part and the piston has a retained part, such that the retaining part and the retained part cooperate to retain the piston in the cylinder. The invention separates the function of retaining the piston from sealing the piston to cylinder interface. The invention also relates to a method of assembling the piston and cylinder including rotating the piston relative to the cylinder so that at least a portion of the retained part becomes aligned with at least a portion of the retaining part, and locking the piston against subsequent rotation relative to the cylinder.

CONTROLLING FRACTURE GROWTH DURING STIMULATION OF SUBSURFACE RESERVOIRS USING OFFSET WELLS

Resumen de: US2025327393A1

Systems and techniques may be used to increase recovery of a geothermal energy resource. An example technique includes selecting a first borehole that extends from a surface of the earth into a first location in a geothermal reservoir, conditioning the first borehole by pumping a fluid into or out of the first borehole at a predetermined operating condition to change a property of the geothermal reservoir, and selecting a second borehole that extends from the surface of the earth into a second location in the geothermal reservoir. The example technique may include enhancing permeability of the geothermal reservoir by using a reservoir stimulation technique on the second borehole, wherein a property of a stimulated reservoir volume is controlled by the property of the geothermal reservoir that was changed by conditioning the first borehole.

Wärmeträger-Kreislauf mit einem Poroperm-Koaxialwärmetauscher

Resumen de: DE102024110994A1

Die Erfindung betrifft sogenannte Poroperm-Koaxialwärmetauscher (5) mit porös-permeablen Wärmeübertragungs-Körpern (6), die vorzugsweise Wasser oder Kohlendioxid als sichere Wärmeträger zum abschnittsweisen Einsatz an erdgekoppelten Wasserversorgungs-Druckrohrleitungen verwenden. Hierdurch wird verfahrensgemäß eine Kombi-Rohrleitung für Wasserversorgung und Erdwärmegewinnung ausgebildet. Mittels Versorgungswasser-Strömung im Kombi-Rohrleitungsnetz und Wärmeträger-Kreislaufströmungen zwischen den Poroperm-Koaxialwärmetauschern (5) und dezentralen Wärmepumpen (10) wird geothermische Niedertemperatur-Energie dem Erdreich entzogen, transportiert und durch die Wärmepumpen (10) in Hochtemperatur-Wärme für die Nutzungs-Gebäude (12) umgewandelt. Aufgrund der relativ einfachen Upgrade-Umwandlung von Wasserversorgungs-Netzen zu Kombi-Wasser/Wärme-Rohrleitungs-Netzen ist davon auszugehen, dass die Erfindung einen ökologischen und ökonomischen Beitrag leisten kann, um den weltweiten Bedarf an klimaneutraler regenerativer Wärme-Energie zu decken.

NATURAL CIRCULATION EVAPORATOR FOR WATER SUPPLY LINES FOR DECENTRALIZED GEOTHERMAL HEAT RECOVERY

Resumen de: WO2025219012A1

The main claims comprise two types of natural circulation evaporators for water supply lines, both of which permit a functional extension for decentralized recovery of the near-surface geothermal energy that is regeneratively contained in the supply water. This includes, on the one hand, the application to existing pipelines and, on the other hand, a new construction application using a combination pipeline. As a result, heat pumps in the utility buildings in contact with lines can be supplied with low-temperature geothermal heat, from which they generate high-temperature useful heat.

一种能源地下结构循环测压检修装置及施工方法

Resumen de: CN120820023A

本发明提供一种能源地下结构循环测压检修装置，包括水箱及控制装置，所述水箱中设置有超声波发生器、温度温度传感器、加热器及紫外线消毒器，所述超声波发生器用于去除水箱内部液体中的溶解气体；所述水箱的出水管上通过管路依次连接有过滤器、循环泵及第一球阀，所述水箱的回水管上通过管路依次连接有第二球阀，所述第二球阀上设置有压力传感器，所述过滤器通过管路并联有增压泵；本发明中，能源地下结构循环测压检修装置集成除气、管路清洗、智能保压及流动参数监测，解决了目前能源地下结构的换热管路在长期运行中存在气阻、堵塞、渗漏监测不足及功能分散的技术问题。

多源数据融合的浅层地热能开发建模方法、系统及设备

Resumen de: CN120822364A

本发明涉及多源数据融合与网格建模技术领域，公开了一种多源数据融合的浅层地热能开发建模方法、系统及设备。该方法包括将浅层地热数据与工程地质数据、水文地质数据联合插值，生成虚拟钻孔；根据浅层地热数据和虚拟钻孔及各向异性的插值约束，构建地温网格模型；对地温网格模型的浅层地热属性等级进行分阶设色和渲染，得到可视化的地温网格模型；根据地温网格模型生成阶梯温度分布剖面图以及温度等值线，以展示温度分布的阶梯特征。本发明通过多源数据融合、虚拟钻孔生成与各向异性建模技术构建高精度、高可靠性的地温网格模型，该模型不仅能生成阶梯温度分布剖面图和温度等值线，还能提升地质参数反演精度与热储层预测可靠性。

一种U型中深层地埋管热泵系统优化设计方法

Resumen de: CN120805455A

本发明公开了一种U型中深层地埋管热泵系统优化设计方法，包括进行热响应试验获得岩土体热物性参数，预测地埋管动态取热量，进行换热耦合模拟获得预测地埋管热泵系统温度动态分布并确定热泵机容量，根据地埋管系统参数和所述热泵机容量设计并搭建地埋管热泵系统，运行所述地埋管热泵系统获得地埋管热泵系统运行数据并拟合获得热泵机性能函数，根据待优化时段建筑热负荷和地埋管出水温度构建流量优化目标函数并优化所述地埋管热泵系统获得最优流量参数，根据所述最优流量参数调整所述地埋管热泵系统。该方法能够显著降低地源侧循环泵的能耗，为U型中深层地埋管热泵系统规模化应用奠定了理论基础。

一种地热能联合储热水罐的供热系统及方法

Resumen de: CN120799530A

本发明公开了一种地热能联合储热水罐的供热系统及方法，包括地热能换热单元、大温差蓄热水罐、地热供热换热站、第二集水器、热网供水管道、太阳能集热器及工厂放热器，地热能换热单元包括设置于地热井内的若干换热管路，该系统及方法实现热能的高效储存及灵活调配，提升系统对负荷波动的适应性及能源综合利用率。

一种一体化地源热泵系统、供暖方法及设备

Resumen de: CN120799766A

本发明涉及热泵技术领域，尤其涉及一种一体化地源热泵系统、供暖方法及设备，包括设置于地下孔内部的地下换热器，所述地下换热器的介质输出端依次连接有压缩机、冷凝器和膨胀阀，所述膨胀阀的介质输出端连接地下换热器的介质输入端；所述冷凝器的循环水输出端连接用户端的循环水输入端，所述冷凝器的循环水输入端连接用户端的循环水输出端，该地源热泵系统省去了地源侧的循环泵及一个换热器，减少了介质在换热过程中的能量损失环节，次奥除了循环泵的能耗，提高能源利用效率和整个系统的运行效率，现有技术中存在的地源热泵功耗及换热损失大的问题。

一种地埋管换热器系统

Resumen de: CN120799729A

本发明提供了一种地埋管换热器系统，涉及能源应用技术领域，所述系统包括集水器、地埋管和雨水储存站，集水器布置于建筑群的下方；地埋管安装在建筑群的两侧的空地之下；地埋管与集水器通过管道连通；雨水储存站与地埋管通过管道连通；雨水储存站上还竖直连通有若干雨水管道；建筑群的雨水通过雨水管道汇集到雨水储存站中，雨水储存站暂存收集到的雨水并流入到地埋管中，地埋管中的雨水与地下土壤发生热交换，随后回流至集水器，集水器中的水被输送到地埋管中与建筑内的空气进行热交换。该地埋管换热器系统可在利用雨水的同时，还有效降低地埋管的供、回水管间的热传递，提高产热效率，降低生产成本。

一种干热岩直井同井注采结构

Resumen de: CN120799727A

本发明涉及能源采集技术领域，且公开了一种干热岩直井同井注采结构，该干热岩直井同井注采结构，包括安装板，所述安装板上设置有采集组件，所述采集组件包括初始直井，所述安装板底部固定安装有初始直井一端。该干热岩直井同井注采结构，为了使该装置更加适用于深层干热岩储层的规模化开发，通过设置有采集组件，该组件配合初始直井通过分支井、定向井及吊直井向干热岩储层延伸，增大井筒与热储接触面积，同时配合滤板过滤岩屑，确保注入水沿多路径均匀吸收热量，同时通过生产直井内的锥形孔眼块引导产出的热液体进入生产直井，并降低流动阻力，同时通过滤筒拦截微粒防止堵塞耐高温举升泵，从而使该装置更加适用于深层干热岩储层的规模化开发。

用于地源热泵机组的井下换热器

Resumen de: CN120799728A

本发明提供了一种用于地源热泵机组的井下换热器，属于地源热泵的技术领域，包括进水模块、排水模块、换热模块、循环泵、热源水循环模块。换热模块包括壳体以及设置在壳体内部的换热机构；换热机构至少设有两个，并且至少两个换热机构在壳体中竖向排布；换热机构的一端与进水模块连接，另一端与排水模块连接。循环泵设置在进水模块或者排水模块中；循环泵用于驱动地下水从进水模块进入换热机构中，并从排水模块排出。热源水循环模块与壳体连接，用于向壳体中输送热源水并向壳体中的热源水回收，以便热源水在壳体与换热机构之间流动，从而使热源水与换热机构换热。

地热储层回灌系统

Resumen de: CN120799730A

本发明的地热储层回灌系统，包括：地热井，地热井用于排出地热水；回灌井，回灌井通过地热管路与回灌井相连，回灌井与地热井的距离大于等于100米，地热管路通向回灌井的地热水的回灌流量小于等于100m3/h；过滤装置，过滤装置包括除砂器、第一过滤器和第二过滤器，第二过滤器的滤径小于第一过滤器的滤径，除砂器、第一过滤器和第二过滤器沿远离地热井的方向依次设在地热管路上，除砂器邻近地热井，第一过滤器和第二过滤器邻近回灌井；换热器，换热器与地热管路和被加热管路相连，以便地热管路内的地热水可通过换热器加热被加热管路内的工质。因此，根据本发明的地热储层回灌系统可具有便于减少回灌时回灌井堵塞，且减少对地热储层的影响。

A GEOTHERMAL HYDROGEN PRODUCTION AND COMPRESSION SYSTEM

Resumen de: AU2024236667A1

The present disclosure is directed to a geothermal hydrogen production and compression system, wherein the system comprises an impure water intake to receive water from a impure water source, at least one geothermal well having a well inlet to receive the impure water from the impure water intake in to the geothermal well and one or more well outlets adapted to return heated impure water from the geothermal well, one or more well outlets being adapted to direct the heated impure water from the geothermal well through a steam engine providing a mechanical output, a purification plant comprising one or more purification chambers for separating impurities from the heated impure water expelled from the steam engine to produce at least some fresh water, one or more discharge outlets to discharge one or more products of the purification plant wherein the fresh water is directed to an electrolyser for electrolysis to produce hydrogen gas, where the hydrogen gas is passed through a hydrogen compressor coupled to the mechanical output and pressurised in a storage apparatus.

GEOTHERMAL CARBON CAPTURE SYSTEM

Resumen de: US2025319435A1

The present disclosure relates to a geothermal carbon capture system, comprising; a primary liquid circuit circulating liquid into a geothermal well and returning heated liquid from a well head of the geothermal well, the primary liquid circuit passing through a condenser; a turbine driven by the heated liquid to power a compressor configured to draw in and compresses ambient air to feed a first compressed air supply and a second compressed air supply, wherein the first compressed air supply is directed to a separator to extract carbon dioxide therefrom; and the second compressed air supply drives a pump to force the carbon dioxide extracted from the separator towards a reinjection well for reinjection into geology surrounding the reinjection well.

PROTECTING DRILLING FLUID

Resumen de: WO2025215407A1

A tripping operation is performed during the drilling of a wellbore in a subterranean formation. The tripping operation includes displacing a drilling fluid from a drilling string disposed within the wellbore by flowing an alternative fluid through the drilling string. The drilling fluid is the same type of fluid used when drilling the wellbore. The tripping operation includes displacing the drilling fluid from the wellbore to a terranean surface by flowing the aqueous fluid into the wellbore, and withdrawing the drilling string from the wellbore.

METHODS AND SYSTEMS FOR TESTING, MODELING AND OPTIMIZING TWO-PHASE FLOW PRODUCED FROM A GEOTHERMAL WELL

Resumen de: US2025321028A1

Methods and systems are provided that produce hot fluid from a geothermal well that intersects a geothermal reservoir, which involves using at least one disposable fiber optic cable deployed within the geothermal well to perform optical measurements within the geothermal well; and analyzing and/or processing the optical measurements to control and/or optimize production of hot fluid from the geothermal well. The at least one disposable fiber optic cable can be deployed within the geothermal well to a depth at or near the bottom of the geothermal well.

Open Loop Geothermal System

Resumen de: KR20250148918A

본 발명은 지하수온차를 활용한 개방형 지열시스템에 관한 것이다. 이를 위한 본 발명의 지하수온차를 활용한 개방형 지열시스템은, 하단이 밀폐되어 지열공에 삽입 설치되며, 복수의 유입홀이 군집되어 형성되는 지열회수부가 구비된 지열관; 상기 지열관으로 유입된 지하수를 지상으로 회수하도록 지상으로부터 지열관의 내부로 연장되는 환수관; 상기 지열관의 주위로 상수를 공급하여 지하수를 보충하는 공급기; 상기 지열관의 내부에서 상하로 이동하여 지열회수부의 유입홀을 개폐하는 차단유닛; 및 상기 차단유닛이 상하로 이동되도록 연결되어 지열회수부가 선택적으로 개방되도록 차단유닛을 상하로 이동시키는 구동기;를 포함하는 것을 특징으로 한다. 이로써, 본 발명은 하나의 지열공으로부터 천부지열과 심부지열을 선택적으로 회수함에 있어서, 상수의 공급 경로 및 지하수의 환수 경로를 변경시킬 필요가 없으므로, 지열시스템을 구성을 위한 배관구조 및 제어요소의 단순화가 가능하다.

RENEWABLE GEOTHERMAL ENERGY HARVESTING SYSTEMS AND METHODS

Resumen de: WO2024123376A1

Renewable geothermal energy harvesting methods (500) may include distributing working fluid (254) from a ground surface (220) into thermal contact with at least one subterranean geothermal formation (222); transferring thermal energy from the subterranean geothermal formation (222) to the working fluid (254); distributing the working fluid (254) from the subterranean geothermal formation (222) back to the ground surface (220); and distributing the working fluid (254) directly to at least one thermal application system (240), The thermal application system (240) may be configured to utilize the thermal energy to perform work. The thermal energy may be utilized at the thermal application system (240) to perform the work. Renewable geothermal energy harvesting systems (201) are also disclosed.

METHOD FOR INSTALLING A GEOTHERMAL INSTALLATION AND A GEOTHERMAL INSTALLATION

Resumen de: CN120322646A

A method of installing a geothermal facility within a geological formation, comprising the steps of:-operating a geothermal well system comprising an inlet conduit, an outlet conduit and an interconnection conduit in fluid communication with the inlet conduit and interconnecting the inlet conduit with the outlet conduit; drilling an additional interconnected pipe by means of at least one service pipe; -interconnecting an additional interconnection conduit with the inlet conduit and the outlet conduit to fluidly communicate the inlet conduit with the outlet conduit through the additional interconnection conduit when the geothermal well system is not in operation; and-fluidly blocking the connection between the additional interconnection conduit and the service conduit using a blocking element. In addition, the invention further provides a geothermal facility.

GEOTHERMAL HEAT ABSORBER AND METHOD FOR PRODUCING THE SAME

Resumen de: EP4632289A1

Ein Erdwärmeabsorber ist ein vorgefertigtes Modul zur Erdwärmeabsorption. Der Erdwärmeabsorber der vorliegenden Erfindung weist einen zylinderförmigen Grundkörper auf, der einen fluidbeaufschlagbaren Wärmeaustauscher (10) enthält. Die Endpartien des zylinderförmigen Modulgrundkörpers (1) sind mit Hilfe einer Kopfanordnung (2) und eines Abschlussstückes (3) flüssigkeitsdicht verschlossen, wobei die Kopfanordnung (2) dazu ausgebildet ist, den im Inneren des zylinderförmigen Modulgrundkörpers (1) befindlichen Wärmeaustauscher (10) des Erdwärmeabsorbers an einen Wärmeverbraucher anzuschließen.

基于连续-非连续单元法的干热岩水力裂缝数值模拟方法

Resumen de: CN120781535A

本发明公开了一种基于连续‑非连续单元法的干热岩水力裂缝数值模拟方法，先建立固体应力场计算模型、流体场计算模型、温度场计算模型，并确定干热岩的断裂准则满足最大拉应力准则和摩尔库伦准则；然后根据干热岩实际情况建立天然裂缝发育干热岩地热储层水力压裂模型；最后将建立的压裂模型结合上述各计算模型进行迭代求解，并在求解计算过程中利用断裂准测判断水力压裂模型是否产生新的裂缝并进行模型裂缝更新，直至完成干热岩裂缝扩展数值模拟过程；本发明在考虑热应力和天然裂缝影响条件的前提下，对深部干热岩水力裂缝扩展进行数值模拟，且其模拟精度经过试验验证精度较高，从而为后续干热岩地热储层压裂施工参数优化提供数据支撑。

用于测试换热效率的装置和换热效率的测试方法

Resumen de: CN120778795A

本发明公开一种用于测试换热效率的装置和换热效率的测试方法，用于测试换热效率的装置包括循环管路、储料容器、多个温度传感器以及加热组件，循环管路的两端分别与进液口和出液口连通；储料容器用于储存换热介质，储料容器设于循环管路，并与循环管路连通；储料容器用于将换热介质泵送至循环管路内；多个温度传感器沿流通通道间隔设置；加热组件套设于干热岩，并用于给干热岩加热。在本发明技术方案中，采用此装置能够测试流动状态的换热介质与干热岩的换热参数，并且可以调节储料容器对换热介质的泵送流速和换用不同干热岩储层温度，循环测试多种工况下的换热介质与干热岩的换热效率和配伍性。

干热岩型地热资源预测方法、设备、介质及程序产品

Resumen de: CN120779495A

本发明公开了一种干热岩型地热资源预测方法、设备、介质及程序产品，方法包括：首先利用待研究区域的重力测量数据进行重力反演，构建干热岩体的三维密度模型；根据地热地质资料构建干热岩体积模型；对干热岩体积模型进行网格化，得到干热岩空间网格模型；再根据待研究区域的地质属性对干热岩空间网格模型中的各单元格进行地质属性赋值，得到干热岩属性模型；利用待研究区域的温度数据，对干热岩空间网格模型中的各个热储层进行温度数值模拟，模拟得到干热岩温度模型；基于干热岩空间网格模型、属性模型和温度模型，对干热岩地热资源量进行预测，得到干热岩型地热资源量预测结果。本发明实施例能够有效提高针对干热岩型地热资源的预测准确性。

一种温泉混合比例及热储温度计算方法

Nº publicación: CN120778987A 14/10/2025

Solicitante:

深地科学与工程云龙湖实验室

Resumen de: CN120778987A

本发明公开了一种温泉混合比例及热储温度计算方法，通过选取温泉样品，测试所选取的所有温泉样品的代表性参数并进行分析误差值，根据分析误差值确定代表性水样，对代表性水样进行水化学分析确定地热温标，根据水化学分析结果，对所确定的代表性水样进行端元混合分析并计算冷热水混合比例，最后根据冷热水混合比例，校正SiO2浓度，计算得到最终热储温度。本发明减少了温泉水在出露地表的过程中与浅层冷水发生混合的影响，综合考虑了水化学、同位素和热储特征，实现了对温泉水混合比例的确定以及热储温度的准确计算，为划分地热系统成因类型及评估地热能资源潜力提供了依据。