155 results about "Geothermal energy" patented technology

The invention discloses a lithosphere thermal structure analysis method, device and equipment and a storage medium, and relates to the technical field of geothermal energy analys.The method comprises the steps that rock information of a current area is obtained, a current lithosphere model is constructed, and the current lithosphere model is composed of a plurality of layers of lithologic units; according to the rock information and a preset temperature change rule, determining a surface earth heat flow value and a lithosphere bottom boundary position corresponding to the current lithosphere model; according to the rock information, determining a hierarchical heat flow value corresponding to each lithologic unit located above the bottom boundary position of the lithosphere, and obtaining a lithosphere heat flow value according to each hierarchical heat flow value; and determining a heat flow ratio parameter as a lithosphere thermal structure analysis result of the current area by combining the earth surface heat flow value and the lithosphere heat flow value. According to the method, the heat flow ratio parameter is obtained by performing layered modeling on the lithosphere, so that accurate quantification of the lithosphere thermal structure is realized from the aspects of heat source properties and a heat transfer mechanism, and the reliability of an analysis result is improved.

The invention provides a geothermal heat storage enhanced heat exchange device, and mainly relates to the technical field of geothermal energy collection equipment. A geothermal heat storage enhanced heat exchange device comprises an upper water tank and a lower water tank symmetrical to the upper water tank. A plurality of evenly-distributed heat exchange pipes are fixedly installed between the upper water tank and the lower water tank, the upper water tank and the lower water tank are communicated through the heat exchange pipes, the top face of the upper water tank is fixedly communicated with a liquid inlet pipe, the bottom of the lower water tank is fixedly communicated with a liquid outlet pipe, and a scraping plate is arranged between the upper water tank and the lower water tank. The scraping plate is driven by a lifting assembly to move, and the heat exchange pipes vertically penetrate through the scraping plate and are in sliding fit with the scraping plate. The heat exchange device has the beneficial effects that the heat exchange area is obviously increased by arranging the multiple heat exchange pipes which are evenly distributed, so that the heat exchange efficiency is improved, the scraping plate can be driven by the stepping motor to accurately ascend and descend, impurities attached to the surfaces of the heat exchange pipes are effectively removed, and the adverse effect of the impurities on the heat exchange efficiency is avoided.

The invention relates to the technical field of multi-source data fusion and grid modeling, and discloses a shallow geothermal energy development modeling method, system and equipment based on multi-source data fusion. The method comprises the following steps: performing joint interpolation on shallow geothermal data, engineering geological data and hydrogeological data to generate a virtual drill hole; constructing a ground temperature grid model according to shallow geothermal data, virtual drilling and anisotropic interpolation constraints; performing step-by-step color setting and rendering on the shallow geothermal attribute grade of the geothermal grid model to obtain a visual geothermal grid model; and generating a stepped temperature distribution profile map and a temperature contour line according to the ground temperature grid model so as to display stepped features of temperature distribution. According to the method, the high-precision and high-reliability ground temperature grid model is constructed through multi-source data fusion, virtual drilling generation and anisotropic modeling technologies, and the model not only can generate a stepped temperature distribution profile map and a temperature contour line, but also can improve the geological parameter inversion precision and the thermal reservoir prediction reliability.

The present application discloses an oil-geothermal energy co-production system, comprising an oil-geothermal energy production and transportation mechanism and an injection and transportation mechanism. The oil-geothermal energy production and transportation mechanism comprises a negative pressure pipeline, an oil extraction portion is formed on the negative pressure pipeline, and the negative pressure pipeline is used to form negative pressure internally so as to extract oil from the oil extraction portion; and the injection and transportation mechanism comprises a plurality of flow-delivering pipelines, and the plurality of flow-delivering pipelines are evenly arranged around the peripheral side of the negative pressure pipeline and are spaced apart from the negative pressure pipeline, wherein each of the flow-delivering pipelines is provided with jetting portions, which are used for injecting supercritical carbon dioxide into petroleum. In the technical solution of the present application, by providing the jetting portions on each of the flow-delivering pipelines and evenly arranging the plurality of flow-delivering pipelines around the peripheral side of the negative pressure pipeline, supercritical carbon dioxide around the negative pressure pipeline can be distributed in a concentrated mode, thereby enhancing the fluidity of petroleum around the negative pressure pipeline, and thus accelerating the efficiency of petroleum extraction by the negative pressure pipeline.

The invention belongs to the technical field of tunnel terrestrial heat utilization in alpine regions, and particularly discloses a terrestrial heat three-dimensional heat preservation and ice melting system suitable for a cable fire ditch and a drainage ditch of an alpine deeply-buried highway tunnel. The terrestrial heat three-dimensional heat preservation and ice melting system comprises a terrestrial heat taking subsystem, a terrestrial heat pipe heat preservation result, a heat exchange unit and a heat supply subsystem. The terrestrial heat taking subsystem is connected with the heat exchange unit through a transmission pipeline, the heat supply subsystem is connected with the heat exchange unit through the terrestrial heat pipe heat preservation subsystem, and the terrestrial heat taking subsystem is located in a terrestrial heat source area which is about two kilometers away from a tunnel entrance. The system transmits heat to the cable trench and the drainage ditch through circulating high-temperature fluid, so that the temperature of the regions is always kept above a freezing point, and water in the cable, the fire-fighting pipeline and the drainage ditch is prevented from being frozen. The system has the advantages of being efficient, energy-saving, clean, environment-friendly, convenient to construct and the like, and meets the anti-freezing requirements of tunnel cables, fire-fighting pipelines and drainage ditches in the high and cold environment.

The utility model provides a cross-seasonal heat storage heating system based on terrestrial heat / waste heat and photovoltaic electric heating. The cross-seasonal heat storage heating system is composed of a hot water pool, a cold water pool, a middle water pool, an electric heating device, a heat pump heating device, a terrestrial heat or industrial waste heat source and a photovoltaic power station. Cold water enters the middle water pool after being heated by terrestrial heat and an industrial waste heat source, the temperature of the cold water generally cannot meet the heat supply requirement, then the water in the middle water pool is heated to meet the heat supply temperature through power generation of the photovoltaic power station and heating of the electric heating device, and then the water is stored in the hot water pool. During heat supply, water in the hot water pool enters a heat utilization load, return water enters the middle water pool and then is divided into two parts, waste heat of one part of water is extracted through the heat pump heating device to heat the other part of return water, hot return water enters the hot water pool to be stored, and cold return water enters the cold water pool to be stored. Decoupling of heat supply power of terrestrial heat or an industrial waste heat source is achieved, the heat supply power is not limited by the power of the heat source any more, and cross-season heat supply is achieved.

The invention discloses a deep and shallow coupling geothermal buried pipe building energy supply system and method, and belongs to the technical field of geothermal energy supply. Water outlets of medium-deep layer buried pipes of a first buried pipe group and a second buried pipe group of the system are connected with a main water supply pipeline, and water inlets of the medium-deep layer buried pipes of the first buried pipe group and the second buried pipe group are connected with a main water return pipeline; a water inlet of the shallow buried pipe is connected with the main water return pipeline, and a water outlet is connected with the main water supply pipeline; a water inlet of a shallow buried pipe of the first buried pipe group is connected with a main water return pipeline, and a water outlet of the shallow buried pipe of the first buried pipe group is communicated with a water inlet of a middle-deep buried pipe of the second buried pipe group; and water outlets of the middle-deep layer buried pipes of the first buried pipe group and the second buried pipe group are communicated with water inlets of the shallow layer buried pipes, so that outlet water of the middle-deep layer buried pipes passes through the shallow layer buried pipes and then enters a water supply main pipe. And the cooling / heating capacity of the shallow buried pipe system is greatly improved.

The invention discloses a hot spring mixing proportion and thermal storage temperature calculation method, which comprises the following steps: selecting hot spring samples, testing representative parameters of all the selected hot spring samples, analyzing error values, determining a representative water sample according to the analysis error values, performing hydrochemical analysis on the representative water sample to determine a geothermal temperature scale, and calculating the mixing proportion and thermal storage temperature of the hot spring according to a hydrochemical analysis result. And carrying out end member mixing analysis on the determined representative water sample, calculating a cold and hot water mixing ratio, finally correcting the SiO2 concentration according to the cold and hot water mixing ratio, and calculating to obtain the final heat storage temperature. According to the method, the influence of mixing of the thermal spring water and shallow cold water in the process of exposing the thermal spring water out of the earth surface is reduced, hydrochemistry, isotope and thermal storage characteristics are comprehensively considered, determination of the thermal spring water mixing proportion and accurate calculation of the thermal storage temperature are achieved, and a basis is provided for dividing cause types of a geothermal system and evaluating geothermal energy resource potential.

The invention discloses a coal mining full-life-cycle coal, gas and heat combined development method which comprises the following steps: before coal mining, carrying out combined development on coal series gas and terrestrial heat in a coal series reservoir through a ground combined development well; in the coal mining process, coal seam gas is extracted through bottom drainage roadway gas extraction holes, circulating water pipes are arranged in an underground bottom drainage roadway or a coal face air return roadway and a transportation roadway, cold water is injected from the ground for cyclic heating while coal mining is conducted, and combined development of coal, gas and terrestrial heat is achieved; after coal mining, a goaf is filled and blocked to form a relatively closed mining influence body, coal gas and hot water in the mining influence body are extracted through the ground coal gas extraction hole and the geothermal energy extraction hole, and combined development of the coal gas and geothermal energy in the mining influence body is achieved. According to the application, transformation and upgrading of coal resource development from single energy acquisition to multi-energy collaborative, efficient and clean utilization are promoted.

The invention discloses an ocean platform low-temperature terrestrial heat organic Rankine cycle power generation system and device. A production reinjection system is used for outputting production water; the organic working medium circulating system can receive production water and comprises an evaporator, a turbine generator set, a condenser, a circulating pump and a preheater which are sequentially communicated through pipelines to form a closed loop; the natural gas output system comprises a return pipe which is coupled and communicated with the condenser; production water of the production reinjection system is in coupling communication with the working medium circulating system through an evaporator and a preheater, low-temperature terrestrial heat in the production water is recycled through an organic working medium, the organic working medium is vaporized after absorbing heat and enters the working medium circulating system in a gas state, and heat energy is converted into electric energy; a return pipe of the natural gas output system is in coupling communication with the working medium circulating system through a condenser, and the temperature of the organic working medium is reduced to be in a condensate state, so that the temperature lower than the temperature of production water is met, and low-temperature terrestrial heat is recycled.

The invention discloses a combined type air conditioning system based on shallow geothermal utilization and a working method thereof, and belongs to the technical field of air conditioners. A combined type air conditioning system based on shallow geothermal utilization comprises a user side floor heating system, a user side air conditioning unit, a ground source heat pump unit, an air source heat pump unit and a ground source circulating water pump for free cooling. The ground source heat pump unit, the air source heat pump unit and the ground source circulating water pump for free cooling are connected into a user side floor heating water supply and return pipeline and a user side air conditioner water supply and return pipeline through pipelines respectively, and the ground source heat pump unit, the air source heat pump unit and the ground source circulating water pump are arranged in parallel. A water supply pipeline and a water return pipeline of the ground source circulating water pump for free cooling are connected with the ground source side water supply pipeline, and an electric control valve is arranged between the water supply pipeline and the water return pipeline of the ground source circulating water pump for free cooling. The cold and heat supply energy efficiency can be improved, free cold supply in local time in summer is achieved, and the system has important significance on energy conservation and consumption reduction.

The application provides a water temperature monitoring and extraction simulation device based on coal mine geothermal energy, and belongs to the technical field of geothermal energy. The device comprises a tank body, an inner cavity is arranged in the tank body, three isolation plates are fixedly connected in the inner cavity, the inner cavity is divided into three cavities by the isolation plates, a placing box with an open top is arranged in each cavity, prefabricated samples are placed in the placing boxes, a plurality of temperature sensors are prearranged in the prefabricated samples, and a vibration assembly is arranged outside the tank body. The isolation plates, the multiple pressure applying assemblies and the elastic rods with different heights are cooperated, so that the multiple stress environments of the coal mines with different depths can be simulated at the same time, the actual stratum differences are better matched, the water penetration is actively controlled by the lifting assembly, the underground water dynamic infiltration process is accurately restored, the static water supplement is avoided to be disconnected with the actual situation, the sample crack water is uniformly distributed by the vibration assembly through vibration, the local water accumulation or vacancy is prevented, and the accuracy and reliability of the water temperature monitoring data are improved.

The application provides a heating method, a heating control device and a heating system which are preferential for middle-deep geothermal energy, and the heating method comprises the following steps: determining real-time heating load demand of a heat user; triggering a middle-deep downhole heat exchange system to provide heating for the heat user; triggering a PVT and the middle-deep downhole heat exchange system to provide heating for the heat user when the PVT meets a heating condition; starting a rock-soil energy storage and recycling system to cooperate with the middle-deep downhole heat exchange system and the PVT to provide heating for the heat user when the heating load demand of the heat user cannot be met by the heat energy provided by the middle-deep downhole heat exchange system and the PVT; and starting an air source heat pump system to cooperate with other heating heat source devices to realize matching between the heating heat energy and the heating load demand of the heat user when the heating load demand of the heat user cannot be met by the cooperation of the middle-deep downhole heat exchange system, the PVT and the rock-soil energy storage and recycling system. The energy utilization efficiency is improved by the scheme provided by the application, and efficient, stable and economic operation of the heating system is realized.

The invention belongs to the technical field of shallow geothermal energy heat exchange model verification, and provides a shallow geothermal energy heat exchange model construction verification and evaluation method and related equipment, and the method comprises the steps: obtaining soil temperature and soil moisture content data at corresponding time; wherein the soil temperature and the soil moisture content are arranged according to a time sequence; the soil temperature and the soil moisture content are pretreated, and the pretreated soil temperature and the pretreated soil moisture content are obtained; inputting the pretreated soil temperature and the pretreated soil moisture content into a pre-trained random forest regression model to obtain a dynamic soil heat conductivity coefficient and a dynamic soil specific heat capacity at corresponding time; calculating the corrected soil heat exchange amount based on the dynamic soil heat conductivity coefficient; the dynamic soil heat conductivity coefficient and specific heat capacity can be obtained by obtaining the soil temperature and water content data at the corresponding time, and the change of the soil thermophysical property parameters along with time can be captured in real time, so that the calculation of the corrected soil heat exchange amount is more suitable for the actual heat exchange process.

The invention discloses a bedrock shallow geothermal energy resource evaluation zoning method and a related device, and relates to the technical field of shallow geothermal energy development, and the method comprises the following steps: obtaining geological data and hydrogeological data of an investigation area, and based on the geological data and hydrogeological data of the investigation area, evaluating the thermophysical condition of a rock mass, the method comprises the following steps: obtaining a thermophysical condition evaluation result, evaluating a hydrogeological condition of a rock mass to obtain a hydrogeological condition evaluation result, further integrating the thermophysical condition evaluation result and the hydrogeological condition evaluation result, and carrying out resource partitioning on shallow geothermal energy development in bedrock of an investigation area to obtain a resource partitioning result. According to the method suitable for bedrock shallow geothermal energy resource evaluation partitioning, shallow geothermal energy development work in bedrock can be guided, and a basis is provided for follow-up arrangement of a vertical buried pipe heat exchange system in an investigation area.

The application discloses a geothermal well and recharging well fracturing construction process, and determines the well position and well depth of the geothermal well according to engineering geology and hydrogeology conditions; drilling is conducted at the well position of the geothermal well, the construction of the geothermal well is conducted, and well cementation and well washing of the geothermal well are conducted; an initial value of the radius of the heat extraction influence range of the geothermal well during heat extraction is obtained; whether the initial value is smaller than a first threshold value is judged, if yes, fracturing holes are processed on the well wall of the heat extraction section in the geothermal well, and the heat extraction section is subjected to staged fracturing to form fracturing gaps; the well position and well depth of the recharging well are determined; drilling is conducted at the well position of the recharging well, the construction of the recharging well is conducted, and well cementation and well washing of the recharging well are conducted; fracturing holes are processed on the well wall of the recharging section in the recharging well, and the recharging section is subjected to staged fracturing to form fracturing gaps. The geothermal well and recharging well fracturing construction process of the embodiment of the application can improve geothermal energy flow and reduce disturbance to the stratum.

The present invention relates to a ground source heat pump unit utilizing geothermal energy in the technical field related to heat pump units. Through the setting of a joint protection unit, on the one hand, it can protect the joints of the heat exchange coil, preventing them from directly contacting the soil and reducing the possibility of leakage at the interfaces. On the other hand, in cooperation with the water seepage monitoring unit and the fixed-point monitoring unit arranged in the joint protection unit, it can clearly distinguish whether the water seepage of the heat exchange coil is from above or below. And in the case of water seepage at the connection of the lower pipe, the seepage water will first fall on the monitoring ring, triggering the pressure sensor therein, thereby realizing the positioning of the leakage point, so that targeted excavation and repair can be carried out. Compared with the large-area excavation and repair in the prior art, the repair difficulty is greatly reduced, while the repair efficiency is improved and the investment in maintenance costs is reduced.

The present application relates to the technical field of oil and gas exploitation, and particularly relates to a heat pump circulation viscosity reduction device based on center pipe closed heat exchange and a use method. The technical scheme is that a center pipe heat exchange unit is located in a production oil pipe, and a ground circulation unit is located at one side of a wellhead device; a hollow sucker rod column of the center pipe heat exchange unit is provided with an inner center pipe, a bottom of the inner center pipe is provided with a center pipe bottom head, and a pipe wall of an upper side is provided with more than one center pipe bottom side opening; the beneficial effects are that heat exchange working medium heated by a heat pump is lowered along the inner center pipe to the hollow sucker rod column in a wellbore, and then is raised to a near ground position along the center pipe bottom side opening between the inner center pipe and the hollow sucker rod column, closed heat exchange prevents blockage and circulation, energy consumption is greatly reduced by using the heat pump technology and the geothermal energy, safety is improved, the function of preventing blockage and increasing production is effectively realized, and the number of workover operations is reduced.

The utility model belongs to the technical field of geothermal energy utilization, and provides a water flow direction switching component in an inner and outer sleeve, which switches different water flow direction modes in the inner and outer sleeves. The utility model has a simple structure, is convenient and quick to use, and adopts the technical scheme as follows: a lower staggered disc is fixedly installed at the upper end of the lower inner tube, an outer edge of the lower staggered disc is sealed and fixed on the inner wall of the outer tube, an upper staggered disc is slidably installed up and down in a first water passing area above the lower staggered disc, a guide sleeve is fixed on the bottom surface of the upper staggered disc, the guide sleeve penetrates the lower staggered disc and is slidably sleeved on the outer wall of the lower inner tube, and matching grooves and convex strips are vertically arranged on the fitting surfaces of the guide sleeve and the lower inner tube, the length of the guide sleeve is greater than the height of the first water passing area, a plurality of through holes are alternately arranged on the lower staggered disc and the upper staggered disc, and all the through holes are blocked when the lower staggered disc and the upper staggered disc are fitted together, a lifting rope mechanism is installed on the upper staggered disc, and the lifting rope mechanism controls the upper staggered disc to move upward.

The present invention discloses a geothermal energy heat exchange system, including a hot and cold energy utilization unit, and also includes: a heat exchange pipe, which is arranged within the lining range on both sides of the middle box culvert of the equipment layer in the lower layer of the shield tunnel. The inlet end of the heat exchange pipe is connected to the water supply main pipe, and the outlet end is connected to the return water main pipe. By fully utilizing the characteristics of the separation of the shield tunnel driving lane layer and the equipment layer, a heat exchange pipe is pre-buried in the shield tunnel equipment layer, and circulates heat exchange with the heat pump system to provide cooling or heating to the user side, effectively replacing the traditional underground pipe ground source heat pump system of the buildings around the tunnel, which can save underground space and is conducive to the development and utilization of underground space.

The utility model discloses a data center waste heat utilization system based on geothermal energy storage, which comprises a cold mass circulation unit used for cooling a data center, and the cold mass circulation unit exchanges heat with a heat absorption end of a refrigeration circulation unit. The heat release end of the refrigeration cycle unit performs selective heat exchange with the heat supply unit and the underground heat storage unit through the control unit, and the underground heat storage unit performs selective heat exchange with the heat supply unit through the control unit. The heat transfer system formed by the cold mass circulation unit and the refrigeration circulation unit can effectively absorb and transfer waste heat of the data center, efficient utilization of the waste heat of the data center is achieved, and therefore the energy utilization rate is improved. By means of the high-heat-storage shallow soil heat storage system, heat generated by the heat transfer system can be efficiently stored, heat can be preserved for a long time, and heat loss is reduced through the soil heat storage system.

The present invention discloses a tower-tank combined solar-thermal composite compressed air energy storage system, which relates to the technical field of energy storage and includes: an air compression branch, which is successively connected in series by a compressor, a compression-side heat exchanger, and a gas storage device; an air expansion branch, which is successively connected in series by a gas storage device, an expansion-side preheater, an expansion-side reheater, and an expander; a compression heat cycle, which is connected in series from head to tail by a compression heat low-temperature working fluid storage tank, a compression-side heat exchanger, a compression heat high-temperature working fluid storage tank, and an expansion-side preheater; a trough solar thermal power generation cycle, which is connected in series from head to tail by a compression heat high-temperature working fluid storage tank, a trough solar thermal field, a trough solar thermal high-temperature working fluid storage tank, and a Rankine cycle device; a tower solar thermal cycle, which is connected in series from head to tail by a tower solar thermal low-temperature working fluid storage tank, a tower solar thermal collector, a tower solar thermal high-temperature working fluid storage tank, and an expansion-side reheater. This system applies compressed air energy storage to the consumption and utilization of clean heat energies such as geothermal energy and solar thermal energy.

The utility model belongs to the technical field of geothermal energy utilization, and provides a water flow direction switching component in an inner and outer sleeve for geothermal resource collection, in which different water flow direction modes are switched in the inner and outer sleeves, the structure is simple, and the use is convenient and quick; the technical scheme adopted is: a lower staggered disc is fixedly installed at the upper end of the lower section inner tube, the outer edge of the lower staggered disc is sealed and fixed on the inner wall of the outer tube, the upper staggered disc is slidably installed up and down in the first water passing area above the lower staggered disc, a guide sleeve is fixed on the bottom surface of the upper staggered disc, the guide sleeve penetrates the lower staggered disc and is slidably sleeved on the outer wall of the lower section inner tube, and matching grooves and convex strips are vertically arranged on the fitting surface of the guide sleeve and the lower section inner tube, a plurality of through holes are alternately arranged on the lower staggered disc and the upper staggered disc, and all the through holes are blocked when the lower staggered disc and the upper staggered disc are fitted together, a plurality of electromagnets are fixedly arranged at the bottom end of the upper section inner tube, all the electromagnets are electrically connected to the control system and powered by the control system, and the manufacturing material of the upper staggered disc is iron.

This invention relates to the field of oil and gas extraction technology, and particularly to a heat pump circulation viscosity reduction device and its usage method based on a central tube closed-loop heat exchange. The technical solution is as follows: the central tube heat exchange unit is located inside the production tubing, and the surface circulation unit is located on one side of the wellhead device; an internal central tube is installed inside the hollow sucker rod string of the central tube heat exchange unit, with a central tube bottom end cap at the bottom and one or more central tube bottom side openings on the upper tube wall; its beneficial effects are: the heat exchange working fluid heated by the heat pump is pumped down the internal central tube to the hollow sucker rod string inside the wellbore by the surface circulation pump, and then enters the annulus between the internal central tube and the hollow sucker rod string through the central tube bottom side opening, rising to near the surface. This closed-loop heat exchange and anti-clogging circulation, through the use of heat pump technology and geothermal energy, significantly reduces energy consumption, improves safety, effectively achieves the function of anti-clogging and increased production, and also reduces the number of well workover operations.

The invention belongs to the technical field of mining wells for petroleum, terrestrial heat, in-situ leaching uranium mining and the like, and particularly relates to a deep well electric plunger submersible pump. The deep well electric plunger submersible pump comprises a plunger pump, a linear electric cylinder is arranged below the plunger pump, a connector is arranged between the plunger pump and the linear electric cylinder, and an electric cylinder cable is arranged below the linear electric cylinder. The plunger pump has the advantages that reciprocating power is output through the linear electric cylinder to drive the plunger of the plunger pump to perform reciprocating water pumping, the plunger pump is essentially a plunger pump and has the advantage of being high in lift, and the lift can reach 1000 m or above; and when the medium is turbid and the sand content is high, the water pumping effect and the service life of the pump are not influenced (unlike a multi-stage centrifugal submersible pump is easy to clamp and damage when the sand content is high).

The invention discloses a method for predicting geothermal energy exploitation performance in the geological hydrogen storage process of a salt water layer, belongs to the field of geothermal energy development and utilization, and aims to predict formation temperature evolution characteristics and production well heat production characteristics in the geological hydrogen storage process. The method is characterized in that a flow-heat transfer coupling model for describing the geological hydrogen storage process is established based on an energy conservation equation, a momentum conservation equation and a mass conservation equation; the method comprises the following steps: establishing a reservoir geologic model according to geological exploration data of the underground salt water layer, dividing grids for the geologic model, obtaining a plurality of grid units reflecting different spatial distribution positions of the underground salt water layer, and setting initial conditions and boundary conditions of the reservoir geologic model; and solving the stratum temperature in each grid unit in the reservoir geologic model and the heat flux density of the production well by adopting the constructed flow heat transfer coupling model, and realizing effective prediction of the stratum mining performance in the geological hydrogen storage process.

The invention discloses a terrestrial heat collection system, a terrestrial heat energy supply system and a control method of the energy supply system, and relates to the technical field of terrestrial heat collection, the terrestrial heat collection system comprises a heat pipe installed in a terrestrial heat well, and the heat pipe comprises an inner pipe and N liquid inlet pipes arranged on the periphery of the inner pipe, the opening direction of the first ends of the N liquid inlet pipes faces a well mouth of the geothermal well, the first ends of the N liquid inlet pipes are used for liquid feeding, the second ends of the N liquid inlet pipes communicate with N liquid outlets formed in the side wall of the inner pipe correspondingly, and the depths of at least two of the N liquid outlets are not equal. N is a positive integer greater than or equal to 2. The amount of liquid injected into each liquid inlet pipe is only one part of the amount of liquid injected into a single inlet, and fluid in the N liquid inlet pipes can be injected into the inner pipe at least at two different depths, so that the phenomenon of unstable flowing of a countercurrent structure caused by large liquid amount and large steam amount at the shallow depth can be effectively reduced.

Provided are a system and method for actively recovering thermal energy, hydrocarbons, and other energy resources from a formation. In one example, multiple fluid conduits are inserted into a borehole. Combustion fluid is injected into the formation via one of the conduits. The combustion fluid is used to ignite and maintain a combustion zone by burning fuel in the formation. To extract thermal energy, cool fluid is circulated through the borehole via another conduit and heated by the thermal energy in the combustion zone. Thermal energy may be recovered from the heated fluid or other processing may be performed for various types of energy recovery. A fluid flow and composition of the combustion fluid and a fluid flow rate of the cool fluid may be individually controlled for purposes such as regulating heat transfer, balancing thermal energy recovery with enhanced oil recovery (EOR), and regulating temperature and pressure for safety.

The invention discloses an energy storage and heating system based on an urban community smart energy parking garage, and relates to the technical field of terrestrial heat collection systems, a community terrestrial heat energy storage center is arranged at the top end of a terrestrial heat collection well, a vertical well parking garage comprises a vehicle conveying mechanism, and a plurality of parking plates are arranged on the vehicle conveying mechanism; a parking space is arranged at the community geothermal energy storage center, a vehicle entrance is formed in the community geothermal energy storage center, and a vehicle transfer mechanism is arranged between the vehicle entrance and the parking space; the heat exchange mechanism comprises a heat exchange circulation loop, the heat exchange circulation loop extends to the community geothermal energy storage center, the heat exchange circulation loop is filled with a first heat exchange medium, and the heat exchange circulation loop communicates with a first circulation pump; and the energy storage mechanism is arranged in the community geothermal energy storage center and stores a second heat exchange medium, the energy storage mechanism is connected with a plurality of heat supply circulating pipelines in parallel, the heat supply circulating pipelines communicate with the to-be-heated mechanism, the community parking problem is solved, and consumption of traditional energy of a city is reduced.

This invention belongs to the field of geophysical exploration technology of geothermal resources and seismic activity. It provides a method, system, electronic device, and storage medium for analyzing the coexistence mechanism of geothermal and seismic activity. The method includes: three-dimensional joint inversion, computational domain gridding, attribute addition, boundary condition addition, reference temperature addition, simulation calculation, and correlation analysis. By performing three-dimensional joint inversion on electromagnetic and gravity data, this invention makes the model more consistent with the actual underground geological structure characteristics, freeing it from the idealized constraints of theoretical models and improving the accuracy of simulation results. Through attribute addition, boundary condition addition, reference temperature addition, simulation calculation, and correlation analysis, a complete theoretical system for the deep control and coexistence of seismic activity and geothermal resources is constructed, realizing the extraction of the intrinsic correlation between geothermal activity and earthquake occurrence.