959 results about "Geothermal power" patented technology

A method of constructing an injection well for a geothermal energy system comprising determining a fracture area of an injection well with a curved wellbore by inputting the curved wellbore path, a set of formation properties, and a fracturing operation, into a fracturing model. The curved wellbore path can promote fracture interference between fracture stresses extending from the injection wellbore. A production model can determine an economic value of the production fluids produced from at least one production well by determining a contact time for the injection fluids to traverse the formation. A design process can iterate the curved wellbore path of the injection well to produce a production fluid with an economic value above a threshold value.

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

The invention discloses a multi-branch middle-deep geothermal well efficient heat exchange system which comprises a main well, a plurality of branch wells and heat exchange pipes extending downwards in the main well in the vertical direction. The main well comprises a first well opening section and a second well opening section, the first well opening section extends downwards from the ground in the vertical direction to be communicated with an upper port of the second well opening section, a lower port of the second well opening section extends downwards in the vertical direction to a geothermal water layer, and an upper port of each branch well is communicated with the second well opening section. The lower port of each branch well obliquely and downwards extends to the geothermal water layer in the direction gradually away from the second opening well section; the vertical distances between the upper ports of the multiple branch wells and the ground are different, and a heat conduction metal stranded wire is arranged in each branch well in the extension direction of the branch well. The medium-deep geothermal well is designed to be of a multi-branch directional well structure, the heat conduction metal stranded wires are arranged in the branch wells in the extension directions of the branch wells, and therefore the geothermal energy taking capacity and the heat transfer efficiency of the stratum far away from the medium-deep geothermal well are greatly improved.

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

A geothermal system including a heat-driven process system using heat extracted from a magma wellbore for driving a thermal process. The system includes a magma wellbore connected to the heat-driven process system in a closed loop. A heated heat transfer fluid conveys the heat from the magma wellbore to a reactor housing a decomposition reaction. The reactor can be a batch reactor, a continuous reactor, or a through-flow reactor. The heat provides the reaction temperature necessary for driving the decomposition reaction of a polymer to an end product. The heat can be provided directly by the heated heat transfer fluid, by an intermediate heat transfer fluid heated by the heated heat transfer fluid, or by a reaction medium heated by the heated heat transfer fluid.

Provided is a method of constructing a geothermal heat exchanger comprised of a geothermal well(s) that maximizes heat transfer from sweet spots of geothermal energy of a geothermal reservoir to the geothermal well(s). The method involves dynamically identifying the sweet spots, and selecting a predetermined shape and / or increasing a dimension of the geothermal well(s) within the sweet spots to increase a surface area of contact between the geothermal well(s) and the sweet spots. The method further involves calculating a mathematical best fit line to minimize a distance between the geothermal well(s) and the sweet spots, and forming at least a part of the geothermal well(s) to, or to a proximity of, the sweet spots along the mathematical best fit line. Methods may include increasing an effective thermal radius of the geothermal well(s) by geothermal fracturing, geothermal acidizing, or geothermal multilateral wells, and embedding thermal energy storage (TES) materials therein.

Methods and systems for geothermal energy production wherein multiple horizontal or vertical wells may be used to pass fluids through the Earth from an injector well to a producer well through induced cracks, splits, fractures, conduits, or channels in the rock. Such methods and systems may 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, and producing the heated fluid to the surface.

Systems and methods for generating electrical power in an organic Rankine cycle (ORC) operation include one or more heat exchangers incorporated into mobile heat generation units, and which will receive a heated fluid flow from one or more heat sources, and transfer heat therefrom to a working fluid that is circulated through an ORC unit for generation of power. In embodiments, the mobile heat generation units comprise pre-packaged modules with one or more heat exchangers connected to a pump of a recirculation system, including an array of piping, such that each mobile heat generation unit can be transported to the site and installed as a substantially stand-alone module or heat generation assembly.

The invention provides a multifunctional heating ventilation air conditioner waste heat utilization method and system, and the method comprises the following steps: 1, obtaining multi-source data of an air conditioner system and an external heat source, carrying out the preprocessing, carrying out the grading collection and preliminary integration of the multi-source waste heat, and dividing the multi-source waste heat into high-temperature waste heat, medium-temperature waste heat and low-temperature waste heat; multi-source data of an air conditioning system and an external heat source are collected, condensation heat of a compressor, industrial waste heat and other multiple types of waste heat are integrated and subjected to staged treatment, and a high-temperature power generation-medium-temperature heat supply-low-temperature heat storage gradient utilization system is constructed; an LSTM neural network thermal load prediction model and an intelligent algorithm are combined to dynamically adjust a waste heat distribution path so as to realize self-adaptive switching of a refrigeration mode, a heating mode and a hot water mode, and meanwhile, a cascade system, photovoltaic energy, geothermal energy and the like are coupled through a direct-current micro-grid to construct a hybrid energy supply system. The problems that in the prior art, waste heat sources are single, energy efficiency is low due to the fact that gradient utilization is lacked, dynamic regulation and control are insufficient, and cooperation with renewable energy sources is not achieved are sequentially solved.

The invention belongs to the technical field of geothermal energy development and utilization, and particularly relates to a separated ultra-deep geothermal water extraction and utilization device which comprises a base, an adjustable supporting mechanism is arranged on the base, a winch is arranged on the adjustable supporting mechanism, a sliding rod piece is arranged in a closed mine, and the winch is used for conveying the sliding rod piece to the bottom of the closed mine. A clamping mechanism used for fixing the sliding rod piece is arranged on one side of the base. The sliding rod piece is vertically arranged, a plurality of supporting plate assemblies are connected to the sliding rod piece in a sliding mode, the other ends of the supporting plate assemblies are fixedly connected to a rope on the winch, a water pumping device is arranged on the lowest supporting plate assembly, transfer water pumping devices are arranged on the rest supporting plate assemblies, and the water pumping device is communicated with the transfer water pumping devices. The device is high in reliability, can be repeatedly used, is low in cost input, and can solve the problem that hot water is difficult to extract when a mine is closed in an ultra-deep manner.

A geothermally powered petrochemical refining system includes a geothermal system with a wellbore extending from a surface into an underground magma reservoir. A geothermally powered fractional distillation system receives crude oil and produces distillates which are separated by molecular weight. The distillates may be provided to a geothermally powered cracking system that is heated by a heat transfer fluid heated by the geothermal system to crack heavy hydrocarbons into lighter ones. The distillates may be provided to a geothermally powered reforming system that is heated by a heat transfer fluid heated by the geothermal system to reform hydrocarbons into different structures.

The invention discloses a CO2 geological storage coordinated shale oil and geothermal energy green development system and method. The system comprises a geothermal power station located on the ground, a ground cable, a CO2 injection device, a CO2 conveying pipeline, a CO2 / shale oil separation device, a shale oil conveying pipeline and a shale oil storage tank. Wherein the geothermal power station is connected with the CO2 injection device through a ground cable, the CO2 injection device is connected with the CO2 / shale oil separation device through a CO2 conveying pipeline, and the CO2 / shale oil separation device is connected with the shale oil storage tank through a shale oil conveying pipeline; through multiple utilization and innovative closed circulation of CO2, an efficient energy development system is built, the recovery ratio of shale oil is increased, geological storage of CO2 and geothermal energy development are achieved, energy consumption and carbon emission are reduced, and therefore the environmental pollution risk is effectively reduced, and unification of economic benefits and environmental benefits is achieved.

Methods and systems for geothermal energy production wherein multiple horizontal or vertical wells may be used to pass fluids through the Earth from an injector well to a producer well through induced cracks, splits, fractures, conduits, or channels in the rock. Such methods and systems may 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, and producing the heated fluid to the surface.

The invention discloses an energy shaft heat exchange efficiency optimization method based on stratum thermophysical property intelligent analysis, and the method comprises the steps: constructing a structured thermophysical property parameter database through integrating laboratory testing, on-site exploration and literature data, and covering key parameters such as a heat conductivity coefficient, specific heat capacity, a thermal diffusion coefficient and the like; a heat transfer model is verified and expanded by combining a reduced scale physical experiment and multi-parameter coupling numerical simulation; machine learning algorithms such as a random forest and a neural network are utilized to establish a nonlinear prediction model of the thermophysical parameters and the heat exchange efficiency of the energy shaft, the contribution degree of the parameters is quantified, and an adaptability threshold value is defined. Through similarity matching of drilling exploration data and a database, the optimal stratum depth is recommended, and finally a cloud intelligent platform is integrated, so that real-time data updating, online calculation and construction suggestions are realized. According to the method, the precision of stratum suitability evaluation in energy shaft ground source heat pump system development is remarkably improved, and the geothermal energy development efficiency is remarkably improved.

The invention relates to a liquid air energy storage and terrestrial heat coordinated underground space air regulation and control system and method. Comprising a first-stage compressor, a second-stage compressor, a third-stage compressor, an expansion refrigerator, a first-stage compression heat exchanger, a second-stage compression heat exchanger, a third-stage compression heat exchanger, a cold box, a separator, a liquid air storage tank, a cryogenic pump, an evaporator, a cold storage circulating pump, a cold storage box, a compression heat exchange circulating pump, a compression heat storage box, a first heater, a second heater and a third heater. The system comprises a first air expander, a second air expander, a third air expander and a generator. The regeneration heater is used for guiding the compression heat generated by the compressor into the regeneration heater for regeneration and / or guiding the geothermal energy output by the geothermal energy output end into the regeneration heater for regeneration; the rotary wheel dehumidification device is used for performing cryogenic drying on the wet air; the fresh air processing unit is composed of a fresh air filter, a regeneration fan, a regeneration filter and an air supply fan.

The invention provides a full-automatic geothermal energy production operation management system and method and a storage medium, and relates to the technical field of geothermal resource management, the full-automatic geothermal energy production operation management system comprises a geothermal end and a control end, and the geothermal end is connected with the control end; the geothermal end is used for exploiting, reinjecting and supplying geothermal energy based on the control instruction output by the control end, collecting production operation information and outputting the production operation information to the control end; the control end is used for obtaining environment information and the production operation information, generating a control instruction according to the environment information and the production operation information and outputting the control instruction to the geothermal end. By adopting the full-automatic geothermal energy production operation management system, the labor cost can be reduced, and the risk of manual misoperation is reduced.

The invention belongs to the technical field of multi-energy complementation, and relates to a solar energy-geothermal energy multi-energy complementation heat storage water tank heat supply system and a control method, and the solar energy-geothermal energy multi-energy complementation heat storage water tank heat supply system comprises a domestic hot water-heat storage dual-purpose water tank, a solar panel, a middle-deep layer buried pipe heat exchanger, a ground source heat pump and user side water; the domestic hot water-heat storage dual-purpose water tank is used as an intermediate component for cross-seasonal heat storage to store heat and is also used for providing domestic hot water for a user; the domestic hot water and heat storage dual-purpose water tank is communicated with the solar panel, the middle-deep layer buried pipe heat exchanger and the ground source heat pump in a water way circulation mode, and the domestic hot water and heat storage dual-purpose water tank is further communicated with a user side for water use. According to the multi-energy complementary heat supply system, the advantages of solar energy and geothermal energy are integrated, the seasonal imbalance of the solar energy is overcome, the safety and stability of the geothermal energy are integrated, the resource utilization rate is increased, meanwhile, the operation cost is reduced, no pollution or emission is generated, the occupied area is small, and the manufacturing cost is saved.

According to the electrochemical energy storage waste heat closed circulation comprehensive utilization system and the working method thereof, an electrochemical energy storage heat source and geothermal energy are subjected to advantage complementation, the system is environmentally friendly, and the energy utilization efficiency and economical efficiency can be improved. The input end heat exchanger is connected with a geothermal source buried pipe system; an outlet of the geothermal source buried pipe system is divided into two paths, one path is connected with the input end heat exchanger, and the other path is connected with the temperature control valve through a fourth valve. The compressor is connected with the input end heat exchanger and the output end heat exchanger, and the output end heat exchanger is connected with the input end heat exchanger and the heat preservation water tank. A cooling medium outlet of the battery system is divided into two paths, one path is connected with the geothermal source buried pipe system through a first valve, the other path is connected with an output end heat exchanger through a second valve, and the output end heat exchanger is connected with a temperature control valve through a third valve. The temperature control valve is connected with the cold liquid box and the cooler, the cold liquid box is connected with the battery system, and the cooler is connected with the cold liquid box.

The invention relates to the technical field of oil-gas field development and geothermal energy utilization. The invention provides an underground high-temperature composite fluid heating system, which comprises a crude oil separation device, a catalysis module, a high-temperature fluid generation module, an injection well pattern module, a target reservoir and a production well, and is characterized in that the crude oil separation device is communicated with the catalysis module through a first gas inlet pipeline and a second gas inlet pipeline; a first gas outlet pipeline and a second gas outlet pipeline are communicated with a high-temperature fluid generation module, the high-temperature fluid generation module is communicated with an injection well pattern module through a third gas outlet pipeline, the injection well pattern module is communicated with a target reservoir, and the target reservoir supplies energy to the outside through a fourth gas outlet pipeline. And the production well conveys the energy-supplied gas to the heat energy recovery device through the first recovery pipeline. In this way, efficient and uniform heating of the underground reservoir is achieved, energy consumption is reduced while the energy recovery efficiency is improved, and the problems of low heat conduction efficiency and high energy consumption in deep oil gas and hot dry rock development are solved.

The invention relates to an ultra-deep well type hydroelectric generation method utilizing geothermal energy and cold and hot water density difference, and solves the problem that geothermal energy cannot be generated and utilized by a water turbine since underground hot water is pumped by a water pump for use in traditional geothermal energy utilization. Comprising the following steps of S1, exploration well drilling, S2, well bottom crack manufacturing, S3, center pipe deployment, S4, cold water is injected between the center pipe and a sleeve, after the cold water is heated by a dry hot rock stratum at the bottom of the exploration well, hot water rises from the center pipe, and the water head difference between the interior and the exterior of the center pipe is formed through the specific gravity difference of the hot water and the cold water. Hot water conveyed to the ground by the central pipe impacts the water turbine for power generation. A heat collection point is a dry hot rock stratum, the influence on underground water is reduced, the inertial thinking that height potential energy of water flow needs to be utilized in traditional water turbine power generation is broken through, and a brand-new water flow from bottom to top hydroelectric generation mode is provided.

In a general aspect, a carbon dioxide (CO2) removal system uses geothermal energy. In some implementations, a method to remove CO2 gas from a gaseous feed includes directing a gaseous feed to interact with an alkaline capture solution in a first gas-liquid contactor. A first portion of CO2 from the gaseous feed dissolves into the alkaline capture solution to form a CO2-rich alkaline capture solution. Steam is generated using heat from a geothermal heat source, and the steam heats the CO2-rich alkaline capture solution in a second gas-liquid contactor. A second portion of the CO2 is separated from the CO2-rich alkaline capture solution in the second gas-liquid contactor to form a CO2-lean alkaline capture solution. The CO2-lean alkaline capture solution is directed to the first gas-liquid contactor.

The present disclosure provides a non-condensable gas reduction system that reduces the effects of atmospheric components contained in gas that is reduced in the reduction well. [Solution] A non-condensable gas reduction system in a geothermal power plant returns non-condensable gas that remains uncondensed when cooled from a first gas contained in geothermal fluid that springs from a production well to a reinjection well. The non-condensable gas reduction system comprises: a pump that pressurizes the first liquid sent to the reinjection well; an ejector that is driven by the first liquid, attracts the non-condensable gas, and discharges a second liquid that is a mixture of the first liquid and the non-condensable gas; and a gas separator connected downstream of the ejector that separates the second gas containing atmospheric components that has been mixed into the second liquid, and discharges the second gas into the atmosphere while discharging the second liquid into the reinjection well.

The invention discloses a permeable energy pile and a ground source heat pump system, and relates to the field of geothermal energy application, the permeable energy pile comprises a pipe pile cavity, a cold water pipe and a hot water pipe, the pipe pile cavity is used for being arranged in a saturated soil body, and a separation part is arranged in the pipe pile cavity to divide the pipe pile cavity into an upper permeable cavity and a lower permeable cavity in the vertical direction; the lower water-permeable cavity is located below the diving surface of the saturated soil body, and a plurality of water-permeable holes are formed in the peripheral side wall of the upper water-permeable cavity and the peripheral side wall of the lower water-permeable cavity; the cold water pipe is inserted into the tubular pile cavity, the water inlet end of the cold water pipe is connected with a cold water source, and the water outlet end of the cold water pipe is located in the upper permeable cavity and used for conveying cold water to the upper permeable cavity; the hot water pipe is inserted into the pipe pile cavity, the water inlet end of the hot water pipe is located in the lower permeable cavity and used for collecting geothermal water flowing into the lower permeable cavity from the saturated soil body, and the water outlet end of the hot water pipe is used for being connected with an indoor heating terminal; therefore, heat exchange between the cold water and the saturated soil body is achieved, the heat exchange efficiency is greatly improved, and the heat exchange time is shortened.

A system for geothermal heating, the system comprising a forced geothermal circuit disposed in a well bore. The system also comprise a well bore heat exchanger and an pump. The system may further comprise a circulation fluid and flux co-inverter. A method for geothermal heating, the method comprising passing a fluid into a thermal circulation system; passing the fluid into a well bore heat exchanger; passing reservoir fluid into an annulus space; and passing the reservoir fluid through a sub-surface formation.

The invention discloses a medium-deep layer and shallow layer geothermal energy coupling energy supply system and an operation method thereof. The medium-deep layer and shallow layer geothermal energy coupling energy supply system comprises a primary side assembly, a secondary side assembly, a first heat pump and a second heat pump, the primary side assembly comprises a middle-deep layer heat exchange set used for exchanging heat with a middle-deep layer geothermal well and a shallow layer heat exchange set used for exchanging heat with a shallow layer geothermal well. The middle-deep layer heat exchange group is in heat conduction connection with the first heat pump through a first heat conduction valve group, the shallow layer heat exchange group is in heat conduction connection with the second heat pump through a second heat conduction valve group, and the shallow layer heat exchange group is in heat conduction connection with the middle-deep layer heat exchange group through a third heat conduction valve group; the first heat pump is in heat-conducting connection with the secondary side assembly through a fourth heat-conducting valve group, and the second heat pump is in heat-conducting connection with the secondary side assembly through a fifth heat-conducting valve group. By optimizing efficient coupling utilization of geothermal resources, the problem that the energy efficiency ratio of geothermal energy utilization is low is solved.

The utility model belongs to the technical field of renewable energy sources and energy storage and heating, and particularly relates to a heat storage and heating system for consuming abandoned electricity by coupling middle-deep geothermal energy with an electric boiler. The system comprises the middle-deep layer coaxial sleeve geothermal well, the heat pump unit, the electric boiler, the first plate heat exchanger, the heat storage tank, the second plate heat exchanger, the third plate heat exchanger, the water collector and the water segregator, eight loops are formed in total, and different heating requirements under four different working conditions are met. Middle-deep geothermal energy, the electric boiler and an energy storage combined heating system are coupled, renewable geothermal energy is fully utilized, the requirement that the tail end operation water temperature of a building is different in different heating periods is met, the electric boiler energy storage technology is coupled, and wind abandoned light electric power is consumed; on the basis of relieving the pressure of a power grid, clean heating of a building is achieved, and efficient utilization of medium-deep geothermal energy is achieved.

The invention relates to the field of intelligent energy regulation and control, in particular to an intelligent building energy scheduling system and method under multi-scene weather, and the method comprises the steps: determining a target region through an energy analysis module, obtaining the total operation data of all equipment in the target region, dividing the total operation data into nonlinear data and linear data, and transmitting the nonlinear data and the linear data to a server; calculating the ratio of the nonlinear data to the linear data; the energy scheduling module calculates a scheduling distribution result according to the proportion of the nonlinear data and the linear data, and the energy supply module controls the solar energy, the wind energy, the geothermal energy or the electric energy to schedule and distribute energy supply of the target area according to the scheduling distribution result. It is ensured that the intelligent building energy scheduling system under the multi-scene weather can be suitable for energy scheduling strategies of building areas with linear problems and non-linear problems, the accuracy of the building energy scheduling system is improved, and the applicability of the building energy scheduling system is widened.

A system for geothermal heating, the system comprising a forced geothermal circuit disposed in a well bore. The system also comprise a well bore heat exchanger and an pump. The system may further comprise a circulation fluid and flux co-inverter. A method for geothermal heating, the method comprising passing a fluid into a thermal circulation system; passing the fluid into a well bore heat exchanger; passing reservoir fluid into an annulus space; and passing the reservoir fluid through a sub-surface formation.

The invention relates to the technical field of geothermal energy utilization and underground heat exchange, in particular to a medium-deep layer buried pipe heat exchanger seepage thermal response rapid prediction method based on artificial intelligence, and the method comprises the steps: obtaining temperature field snapshot data of a medium-deep layer buried pipe heat exchanger system under different operation conditions; performing orthogonal decomposition on the temperature field snapshot data to obtain main modal characteristics and corresponding amplitudes; the parameters of all the operation conditions serve as input variables, all the main modal features and the corresponding amplitudes serve as output variables, a BP neural network is trained, and an artificial intelligence agent model is constructed; and obtaining parameters of a target operation condition, inputting the parameters into the artificial intelligence agent model, outputting the amplitude of each main mode under the target operation condition, reconstructing a temperature field, and completing rapid prediction of the seepage thermal response of the medium-deep layer buried pipe heat exchanger under the target operation condition. According to the method, the temperature field distribution of the DBHE system under the action of underground water seepage can be quickly predicted.