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LIQUID COMPOSITION, GEOTHERMAL WELL COMPRISING LIQUID COMPOSITION AND METHOD FOR PREPARING LIQUID COMPOSITION

Resumen de: FI20255331A1

Disclosed is a liquid composition for transferring heat in a geothermal well, the liquid composition comprising ethanol (EtOH); and potassium formate (KFo); wherein a mixture of the ethanol (EtOH) and the potassium formate (KFo) is dissolved in a solvent.

一种多级构型超长重力热管地热换热方法

Resumen de: CN122881242A

本发明公开了一种多级构型超长重力热管地热换热方法，包括以下步骤：地热储层地质参数勘测与换热边界条件建模，热管结构参数与工质参数匹配设计，蒸发段多级工质精准分配结构构建，气液两相流动与相变传热数值模拟优化，热管井下安装防腐与密封预处理，热管下入与地热分段取热启动，两相流动状态实时监测与动态调控，集群式热管协同换热优化，余热梯级利用与系统能效闭环调控，本发明通过多级缓冲液池与开式液槽协同的工质精准分配结构，实现冷凝回流工质的分布式输送与均匀分配，从根源上避免蒸发段底部积液积聚，消除积液对沸腾相变的抑制作用，使热管蒸发段全程保持高效沸腾换热状态，取热功率较传统超长重力热管提升。

一种基于废弃油井改造的稠油热采系统及方法

Resumen de: CN122880460A

本发明提供一种基于废弃油井改造的稠油热采系统及方法，所述基于废弃油井改造的稠油热采系统包括热源井，热源井为废弃油井，热源井内部安装超长重力热管；超长重力热管包括外管和设置在外管内部的内管，外管和内管之间形成环形空间，超长重力热管底部位于热源井的地热层段，超长重力热管顶部伸出地面，设有蒸汽出口和工质回注口，工质回注口与工质储罐连接，超长重力热管内腔充注有二氧化碳工质；蒸汽出口与气液分离缓冲罐的入口连接，气液分离缓冲罐的出口与蒸汽压缩机的入口连接，蒸汽压缩机的出口通过注气管道与稠油生产井的注气口连接。本发明还提供一种采用所述基于废弃油井改造的稠油热采系统的稠油热采方法。

一种中低温地热耦合高温热泵的工业蒸汽制备系统

Resumen de: CN122881034A

本发明涉及工业蒸汽制备技术领域，具体为一种中低温地热耦合高温热泵的工业蒸汽制备系统，包括超高温高效离心式热泵机组、蒸发侧循环泵、两级水蒸汽压缩系统、旋流除砂器、水处理系统、冷却系统和密封系统，所述旋流除砂器设置于中低温地热水的入口管路上，用于对中低温地热水进行除砂处理，且旋流除砂器处理后的中低温地热水分为第一地热换热支路和第二地热换热支路。该中低温地热耦合高温热泵的工业蒸汽制备系统，实现地热资源的梯级利用和低碳供热，中低温地热预热和超高温高效离心式热泵机组制汽二者耦合可构建一种清洁、高效的工业蒸汽制备系统，实现地热能的深度利用与化石燃料的替代，无直接燃烧排放，仅消耗电力。

DIAGNOSTIC SYSTEM DIRECTLY CONNECTED TO A GEOTHERMAL SUBTERRANEAN FORMATION

Resumen de: AU2025257595A1

An apparatus, system, and method for using a tracer in a geothermal energy recovery operation including introducing the tracer into a subterranean formation, introducing a heat recovery fluid into the formation, collecting the fluid from the formation, measuring the concentration of the tracer in the fluid, and reporting results of the measuring within 24 hours. The measuring may use an instrument such as a gas chromatograph, a mass spectrometer, or a liquid chromatograph. In some embodiments, the collecting, measuring, and reporting occur within 200 yards of each other. Some embodiments may use a computer to control the collecting, measuring, and reporting and may record the time of the collecting and measuring the tracer concentration. Reporting the measurement results may include remote communication. Collecting the fluid may include flowing the fluid through a multiplexing valve that may also introduce calibration gas, blank gas, carrier gas, or a combination.

TEMPERATURE MANAGEMENT OF DOWNHOLE TOOLS

Resumen de: US20260309023A1

In a drilling string comprising drill bit and a ranging tool, an arrangement of insulated drill pipe among other drill pipe in the drilling string is configured based on a performance/temperature relationship of the ranging tool. A characteristic of a flow of fluid through the drilling string is configured based on the performance/temperature relationship of the ranging tool while the drilling string is in a wellbore and the ranging tool is being operated to determine the location of the wellbore relative to another wellbore.

DIHYDROGEN PRODUCTION USING GEOTHERMAL ENERGY

Resumen de: WO2026209361A1

System (1) comprising a dihydrogen production installation (3), a geothermal installation (2) and an installation (4) configured to transfer heat from a geothermal fluid (9) supplied by the geothermal installation (2) to an inlet stream (8) feeding the dihydrogen production installation (3). Method for implementing this system (1).

Geothermal Heat Exchangers and Related Installation Apparatuses, Systems, and Methods

Resumen de: US20260309371A1

0000 The presently claimed and described technology provides geothermal heat exchangers and related apparatuses, tools, systems, and methods that facilitate economical installation of the heat exchangers. The heat exchangers may be installed using a penetrator that is driven into ground by a driving assembly. The driving assembly may drive the penetrator via a central drill string or drill rod and/or by overlapping driving members of alternating orientation. Tubes of the heat exchangers may be configured in a helical configuration and/or a straight configuration and/or be configured with an extended tube-to-tube spacing. Such extended tube spacing reduces tube-to-tube thermal conduction and increases tube-to-ground thermal conduction and thereby increases efficiency, effectivity, etc. of the geothermal heat exchanger. Sheathing may be positioned around the tubes for protection during installation. The sheathing and/or the driving assembly may place grout and/or other material around and or adjacent the tubes. A housing may be positioned around a fluid return portion of the heat exchanger tubing, and fluid passages may deliver fluid into the ground to facilitate penetration and/or to backfill grout during withdrawal. A removable sheath may be positioned around the tubing and selectively retained and released to permit sheath retrieval while leaving the tubing installed.

水処理装置および水処理方法

Resumen de: JP2026155301A

【課題】本発明は、装置の大型化、コスト増加および処理フローの煩雑化の問題を回避しながら、処理が一時的に停止しても金属管の腐食を抑制できる、水処理方法および水処理装置を提供する。【解決手段】水処理装置５０Ａは、地下水Ｗ１の熱を利用するための熱交換部１２と、熱交換部１２への地下水Ｗ１の導入を制御するための熱交換部入口バルブＶ１と、熱交換部１２からの地下水Ｗ１の導出を制御するための熱交換部出口バルブＶ２とを備え、熱交換部１２は地下水Ｗ１が流れる熱交換配管Ｌ２を有し、熱交換配管Ｌ２の第１の端部が熱交換部入口バルブＶ１と接続され、熱交換配管Ｌ２の第２の端部が熱交換部出口バルブＶ２と接続されている。【選択図】図１

三种套管换热和储层对流换热串通耦合地热开采系统及开采方法

Resumen de: CN122857983A

本发明提供三种套管换热和储层对流换热串通耦合地热开采系统及开采方法，属于地热开采技术领域。该系统的地下井筒部分构型包括竖直单井型、水平单井型和U形井型。其在地热井筒套管上设置漏失段，让套管换热过程中部分流体自然通过漏失段的压裂裂缝进入到地热储层中，与地热储层发生对流换热，然后通过抽取段回到井筒中。由于漏失段和抽取段具有较大的压差，将强迫流体在地热储层中对流循环换热，达到显著提高套管换热的效果。即使压裂裂缝连通性效果不好，整个系统也能够保证流体在井中循环并通过套管提取井筒附近的地热能。

一进多出式倒伞型中深层地埋管换热系统计算方法及系统

Resumen de: CN122857981A

本发明公开了一种一进多出式倒伞型中深层地埋管换热系统计算方法及系统，以公共下降管和一个分支埋管为对象，并分管段分别建立柱坐标系下的二维非稳态传热模型，可大幅降低地埋管传热计算复杂度。该系统采用 “1个公共下降总管 + N 个换热支路”的倒伞型闭式循环结构，包括沿竖直方向布置的公共下降总管、呈放射状分布的多组并联换热支路以及地面回水集管。循环工质经公共下降总管下行至2000‑3000m深度的目标地热储层后，分流进入各独立换热支路完成热交换，最终经地面回水集管汇集返回地面换热设备。本发明的换热面积大幅增加，出口水温显著提升，取热量大幅增加，并显著降低复合换热结构传热分析复杂程度和减少计算工作量。

干热岩注采循环智能监测与试验系统及方法

Resumen de: CN122859718A

本发明公开了干热岩注采循环智能监测与试验系统及方法。针对干热岩换热试验中物理剥落与化学沉淀耦合形成微堵塞且难以鉴别的难题，本发明在注采循环中同步提取高频微震事件频次与特定离子浓度衰减率；利用致堵交叉诊断矩阵对二者进行耦合分析，动态识别当前微裂缝的纯物理淤积、纯化学结垢或物理化学复合微堵塞类型；并据此靶向触发水力脉冲冲刷、溶蚀药剂注入或联合干预等解除指令；最后量化热剥落倾向性与化学沉淀速率，作为动态修正因子反馈至干热岩选区评价指标模型。本发明的方案能够实现深部储层致堵成因的精准诊断与靶向解除，避免盲目干预导致储层报废，并显著提升工作区长期开发寿命预测的准确性。

一种深层地热开采系统及三角内螺纹槽热管设计方法

Resumen de: CN122857982A

本发明公开了一种深层地热开采系统及三角内螺纹槽热管设计方法，包括重力热管、浅层相变材料储能装置及换热装置，重力热管通过嵌套焊接垂直埋设于地热井中，其底端伸入深层地热储层，顶端与换热装置连接，浅层相变材料储能装置与浅层热管进行热交换，形成储能与释放回路，通过多级不同介质热管串联结构，显著降低了介质在超长距离蒸发上升过程中的流动阻力与压力损失，实现了深层地热能的高效提取，浅层相变储能装置提取的太阳能，实现了能量的时空匹配与阶梯式调控运行，该系统不仅大幅提升了深层地热利用效率和浅层储能密度，其一体化的非能动设计还避免了介质回流泄露风险，降低了维护成本，增强了系统安全性与市场竞争力。

环核式串联梯级相变回填地埋管蓄热取热系统及方法

Resumen de: CN122858175A

本发明提供了一种环核式串联梯级相变回填地埋管蓄热取热系统及方法，该系统包括由内向外依次设置的核心蓄热区、相变蓄热区和热阻拦区，各区内分别布置多个地埋管井口；注水主管经注水支路连接核心蓄热区井口，回水主管经回水支路连接热阻拦区井口，位于同一径向路径上的核心蓄热区井口、相变蓄热区井口和热阻拦区井口通过井口串联水管依次串联，形成多个在注水主管与回水主管之间并联的串联支路；核心蓄热区井口内回填高导热材料，相变蓄热区井口内回填相变材料，热阻拦区井口内回填低导热材料。蓄热时工质由内向外流动，取热时反向流动。本发明实现热量品位梯级存储与释放，抑制热量无序扩散，提高取热出口温度稳定性。

一种基于地热能交换的节能型板式换热机及方法

Resumen de: CN122858159A

本发明涉及一种基于地热能交换的节能型板式换热机及方法，属于换热机技术领域。该板式换热机包括安装机架、固定压紧板、活动压紧板及位于固定压紧板和活动压紧板之间的多个换热板片，固定压紧板、活动压紧板及多个换热板片通过长螺栓锁紧固定。该板式换热机还设有固定壳、自适应压紧组件、位移伸缩联动组件及旋转振动分板组件。自适应压紧组件在换热板片热胀时提供轴向退让余量，冷缩时弹性复位维持密封；位移伸缩联动组件在检修时由活动压紧板外移带动活动端部伸入板缝；旋转振动分板组件驱动分离件旋转撑开板片并振动松垢。本发明实现了热胀冷缩自适应压紧与检修时自动分板的协同配合，有效提升密封可靠性和维护便捷性。

GEOTHERMAL AND GEOPRESSURE RECOVERY SYSTEMS

Resumen de: US20260298213A1

A geothermal power system includes a pressure exchanger fluidically 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.

強化地熱システム坑井の仕上げ時における引張割裂及び水圧せん断パラメーターの制御方法

Resumen de: GB2634155A

Methods and systems for geothermal energy production wherein multiple horizontal or vertical wells are used to pass fluids through the Earth from an injector well 215 to a producer well 210 through induced cracks, splits, fractures, conduits, or channels in the rock. Such methods and systems include controlling tensile-split conduits in a subterranean geothermal formation by providing an injection well, providing a production well, configuring the injection well for injection of a tensile-splitting fluid into a production zone, configuring the production well to produce a heated fluid from the production zone, applying pressure to the production well, creating a plurality of tensile-split conduits, raising or lowering the pressure in the production well, establishing fluid communication between the injection well and the production well using hydro-shearing, and producing the heated fluid to the surface.

SYSTEMS AND METHODS FOR DRILLING GEOTHERMAL WELLS

Resumen de: US20260298032A1

Systems and methods for drilling a geothermal well can include drilling a first borehole to a geothermal target, the first borehole defining a longitudinal axis; and drilling a first portion of a second borehole having a first end and a second. The first end of the second borehole extends from the first borehole, the first portion extends downwardly and outwardly from the longitudinal axis of the first borehole, and the first portion of the second borehole is in fluid communication with the first borehole. The techniques can include drilling a second portion of the second borehole. The second portion extends downwardly and towards the longitudinal axis of the first borehole, the second end of the second borehole extends to the first borehole, and the second portion of the second borehole is in fluid communication with the first borehole. Casing can be provided and a geothermally active region surrounding the wellbores may be fractured, thus providing a geothermal region with a greater surface area through which a fluid may flow.

SYSTEM AND METHOD FOR ACHIEVING GREEN, LARGE-SCALE, LONG-DURATION ENERGY STORAGE BY ELECTRICALLY HEATING CONFINED UNDERGROUND AQUIFER

Resumen de: WO2026200833A1

The present invention provides a system and method for achieving green, large-scale, long-duration energy storage by electrically heating a confined underground aquifer. The system uses underground aquifers confined by lithological formations, faults, or hydrocarbon-bearing formations such as oil- or coal-bearing formations as a heat storage medium, heats the aquifers by means of energy sources such as electrical energy, new energy, thermal energy or nuclear energy, and stores the thermal energy underground for a long period of time. When needed, the thermal energy and steam kinetic energy are converted into electrical energy or other forms of energy for output via a heat exchange system. The present invention has the advantages of large-scale energy storage, high efficiency and stability, environmental friendliness, and low cost, is suitable for various geographical conditions, and has broad application prospects.

GEOTHERMAL ENERGY SYSTEM

Resumen de: US20260298503A1

0000 A system for geothermal heating comprising: a forced geothermal circuit in communication with a well bore; a well bore heat exchanger; a multilateral channel; a channel casing design; and a pump. A method for geothermal heating comprising: passing a fluid into a thermal circulation system; passing the fluid into a well bore heat exchanger; heating the fluid; passing the heated fluid through a multilateral channel comprising a multilateral channel design casing; and passing a reservoir fluid and the fluid into a heat exchanger. A method for a loop recovery process comprising: passing a circulation fluid into a system for geothermal heating; passing the circulation fluid into a well bore heat exchanger; heating the circulation fluid; passing the heated circulation fluid out of the system for geothermal heating; passing the heated circulation fluid through a heat exchanger of an organic Rankine cycle; and cooling the circulation fluid.

SYSTEM, METHOD AND APPARATUS FOR GENERATING ELECTRIC POWER FROM SUBSURFACE WELLS

Resumen de: AU2025238607A1

A system, method, and apparatus for generating kinetic energy electricity production concurrent with thermal energy electricity production, chemical energy electricity production or any other electricity production concurrent with kinetic energy power production from a plurality of subsurface wells penetrating or terminating in fluid-bearing, subterranean zones or intervals containing energy producing components which may include heat, fluid flow, pressure, hydrocarbons, water, water comprising sodium chloride of varying concentrations, water comprising hydrogen, hydrocarbons comprising hydrogen, hydrogen alone, or any other energy producing components, or any combination thereof, of these energy producing components. The system involves methods and apparatus summarized in a six-step process that includes: Phase 1 Fluid Production, Phase 2 - Fluid Gathering and Combination, Phase 3 - Kinetic Energy/Thermal Energy Electricity Cogeneration, Phase 4 - Fluid Processing, Phase 5 - Kinetic Energy/Chemical Energy Electricity Cogeneration and Phase 6 - Fluid Pumping, Distribution, and Injection.

REFRIGERATION CYCLE APPARATUS

Resumen de: WO2026204951A1

The purpose of the present invention is to provide a refrigeration cycle apparatus capable of suppressing a decrease in comfort even when the amount of heat collected from underground decreases. A refrigeration cycle apparatus (1) comprises: air conditioning units (11a, 11b); a heat medium (12) supplied to the air conditioning units (11a, 11b); an underground heat exchanger (13) that exchanges heat between the heat medium (12) and soil (2); an air heat source unit (14) that exchanges heat between the heat medium (12) and outside air; and a control device (15) that controls the air conditioning units (11a, 11b) and the air heat source unit (14). The control device (15) has: a capacity acquisition unit (151) that acquires the required capacities of the air conditioning units (11a, 11b); a heat collection upper limit acquisition unit (152) that acquires an upper limit collection amount of heat that can be collected by the underground heat exchanger (13) from said soil (2); and an operation determination unit (153) that compares the required capacities and the upper limit collection amount of heat to determine whether or not to operate the air heat source unit (14).

METHOD AND SYSTEM FOR EVALUATING SCALE PREVENTION AND SUPPRESSION EFFECTS

Resumen de: WO2026203884A1

The present invention enables the effects of scale prevention and suppression in a geothermal power plant to be evaluated more rapidly. Provided is a method for evaluating the effects of preventing and suppressing scale adhesion in a geothermal power plant (100), the effects of preventing and suppressing scale adhesion being evaluated using a scale sensor device (120) that detects the degree of scale adhesion to the surface of a sensing unit by immersing the sensing unit, which is formed by exposing the core of an optical fiber in one or more locations, in a geothermal fluid produced from a production well (101) of the geothermal power plant. The scale sensor detects the degree of adhesion of scale at the production well (101) and an injection well (102) of the geothermal power plant and at any location therebetween, and detects the degree of adhesion of scale at any location after, for example, adding a chemical agent for preventing and suppressing the formation of scale into the geothermal fluid, or after changing the production method.

超臨界又は濃密相二酸化炭素を使用して高温岩体を掘削するためのシステム、プロセス及びモデル化方法

Resumen de: US12018863B1

0000 Systems and processes for dry hot rock drilling operations using sCO<2 >expanded across one or more downhole J-T valves or chokes to cool MWD components. Methods of modeling same.

地下热能开发利用的优化方法、装置和电子设备

Nº publicación: CN122835007A 29/09/2026

Solicitante:

中国石油化工股份有限公司中国石油化工股份有限公司石油勘探开发研究院

Resumen de: CN122835007A

本发明提供一种地下热能开发利用的优化方法、装置和电子设备，属于地下热能开发利用领域。方法包括：基于初始生产流量和回灌温度，在目标系统运行年限内对热储‑井筒耦合模型进行瞬态求解，得到热储‑井筒耦合模型的压力分布和温度分布；基于温度分布监测热储‑井筒耦合模型中的生产井井口温度，在生产井井口温度不满足设定温度阈值的情况下，调整初始注采井间距并跳转至确定初始注采井间距的步骤执行；基于压力分布监测热储‑井筒耦合模型中的回灌井井口压力，在回灌井井口压力不满足设定压力阈值的情况下，调整初始生产流量并跳转至确定初始生产流量的步骤执行。本发明解决现阶段缺少一种地下多类型热能开发与地上利用一体化优化方法的缺陷。