CN110185401A - A kind of heating heating well construction - Google Patents
A kind of heating heating well construction Download PDFInfo
- Publication number
- CN110185401A CN110185401A CN201910359555.8A CN201910359555A CN110185401A CN 110185401 A CN110185401 A CN 110185401A CN 201910359555 A CN201910359555 A CN 201910359555A CN 110185401 A CN110185401 A CN 110185401A
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- well
- layer
- temperature
- heating
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/20—Geothermal collectors using underground water as working fluid; using working fluid injected directly into the ground, e.g. using injection wells and recovery wells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
Abstract
The invention discloses a kind of heating to heat well construction, it is composed including low-temperature heat well and high-temperature heating well, wherein, it is heated at high temperature the quantitative proportion >=1:1 or low-temperature heat well of well and low-temperature heat well and quantitative proportion >=1:1 of high-temperature heating well, it is not linked up with stratum after low-temperature heat down-hole casing, it is heated at high temperature well and stratum communication, connection realizes that hot and cold water is neutralized and exchanged between the low-temperature heat well and high-temperature heating well of above ground portion.Low-temperature heat well and high-temperature heating well are three layers of concentric ring type structure that two layers of concentric tube of tripping in forms in casing, three layers of concentric ring type structure are arranged concentrically by pit shaft outer layer sleeve, insulating tube, inner tube from outside to inside, low-temperature heat well is followed successively by water filling layer, insulating layer and the layer that draws water from outside to inside, and the present invention solves the problems, such as that geothermal energy heating drilling well calorific value inefficiency existing in the prior art, maintenance cost is high and influences underground water.
Description
Technical field
The invention belongs to geothermal heating system technical fields, and in particular to a kind of heating heating well construction.
Background technique
It with the raising of drilling technology and completion technique, is efficiently gradually become a reality, is optimized using the technology of underground heat energy
Drilling well and well-completing process journey, reasonable employment drilling well and Well Completion Engineering of Oil Reservoirs rationally design tubular column structure in well, use horizontal well or straight well
Structure it is reasonably combined, reach the thermal efficiency using the mode that successively heats of low temperature high-temperature heating well and maximize.
One of existing method is using tripping in pvc pipe after tripping in casing after drilling technology progress drilling well, from casing and PVC
Cold water is injected among pipe, and ground is pumped by pvc pipe after being added by shaft bottom circulation, it is characterized in that not stratum contacts, is not taken out
Underground water is taken, while generating calorific value inefficiency and being extracted into ability access aperture after ground successor so needs large-scale heating equipment to heat
Plate, structure is simple in well, water filling in pump process since hot and cold water influences each other the hot water for causing original temperature not high
Still can cool down, the electric energy of the extraction right cost of use valuableness of successor heats, calorific value inefficiency.
Its existing method two is established after geothermal well using the direct groundwater abstractions of means such as electric submersible pump, the method calorific value effect
Rate is high, is drawn water in well by electric submersible pump, not reverse circulation.Without recycling in water in pit shaft, it is complete that the method generates hot water
From underground water, although calorific value is high-efficient, dynamic equipment late maintenance cost is expensive in one well, secondly extraction underground
Water, which will lead to level of ground water and reduce, influences underground water, thirdly long-term extraction reduces high-temperature heating well well temperature, so that being formed
Temperature funneling effect and ground end energy deficit.
Existing method three is transformed reservoir using fracturing technique, produces after carrying out staged fracturing using horizontal well construction
High-temperature-hot-water out, water-out manners are identical as method two, but due to using stimulation technology somewhat expensive, normal cells are difficult
Large area diffusion, which is not needed, with universal and underground heat energy causes consumption ratio underground.
Summary of the invention
The object of the present invention is to provide a kind of heating to heat well construction, solves geothermal energy heating existing in the prior art
Drilling well calorific value inefficiency, maintenance cost it is high and influence underground water the problem of.
The technical scheme adopted by the invention is that well construction, including low-temperature heat well and high-temperature heating are heated in a kind of heating
Well is composed, wherein the quantitative proportion >=1:1 or low-temperature heat well and high-temperature heating well of high-temperature heating well and low-temperature heat well
Quantitative proportion >=1:1, do not linked up with stratum after low-temperature heat down-hole casing, high-temperature heating well and stratum are linked up, and ground is located at
Connection realizes that hot and cold water is neutralized and exchanged between partial low-temperature heat well and high-temperature heating well.
The features of the present invention also characterized in that
Low-temperature heat well and high-temperature heating well are three layers of concentric ring-like knot that two layers of concentric tube of tripping in forms in casing
Structure, three layers of concentric ring type structure are arranged concentrically by pit shaft outer layer sleeve, insulating tube, inner tube from outside to inside, low
Warm heated well is followed successively by water filling layer, insulating layer and the layer that draws water from outside to inside, wherein it is logical that outer layer is formed between water filling layer and insulating layer
Road, the outer layer channel are heating channel, form inner-layer channel between insulating layer and the layer that draws water, which is heat preservation channel；
High-temperature heating well is followed successively by the layer that draws water, insulating layer and water filling layer from outside to inside, wherein draws water and forms outer layer between layer and insulating layer
Channel, the outer layer channel are heating channel, fill the water and form inner-layer channel between layer and insulating layer, which is that heat preservation is logical
Road, low-temperature heat well water filling layer and high-temperature heating well draw water layer be by pit shaft outer layer sleeve inner wall with keep the temperature pipe outer wall formed
The toroidal cavity formed between toroidal cavity heat preservation inside pipe wall and internal layer pipe outer wall is insulating layer.
The pressure pipe that insulating tube and inner tube are structure as a whole.
Section gap is provided with spiral centering device between pit shaft outer layer sleeve and insulating tube, makes pit shaft outer layer sleeve and heat preservation
Spacing is kept fixed between pipe, spiral centering device includes the circular passage of pipe dress, is placed with toroidal helical ring around circular passage
Around continuous support blade, spiral centering device can it is independently installed with tube wall outside, can also be integrally formed with tubing, tube wall external spiral
The continuous blade of decline makes water flow by being formed after blade along the downward water flow of direction blade, also sets between insulating tube and inner tube
It is equipped with centralizer.
It is one or a set of that spiral centering device structure is divided into every 5~20m setting between the setting of pipe axial direction.
Low-temperature heat well and high-temperature heating well are straight well, horizontal well any combination.
The invention has the advantages that well construction is heated in a kind of heating:
It (1) include that low-temperature heat well and high-temperature heating well are composed, wherein the number of high-temperature heating well and low-temperature heat well
Quantitative proportion >=1:1 of amount ratio >=1:1 or low-temperature heat well and high-temperature heating well, low-temperature heat well and high-temperature heating well are straight
Well, horizontal well any combination by well type without being limited；
(2) after normal-temperature water is injected into low-temperature heat well by room temperature water inlet, heating is recycled by low-temperature heat well water filling layer
Then water is mended by ground low-temperature heat well layer floor passageway outlet port of drawing water by ground heating power by low-temperature heat well suction pump
It repays after device heat preservation in pressurization injection high-temperature heating well, by being drawn water pumping behind cyclic high-temperature heated well shaft bottom by high-temperature heating well
Out to orifice plate.Such cooperation is so that hot water reaches the maximized purpose of the thermal efficiency after two mouthfuls of geothermal wells gradually heat；Together
When, enter in high-temperature heating process after surface pipeline network after the water outlet of shaft bottom and is not lost using the device of thermal compensation on ground
Heat, and heat compensation is carried out as needed；
(3) three concentric ring channels are respectively formed between every group of low-temperature heat well being connected and high-temperature heating well, pass through ground
Face insulating layer pumping, which is mixed to insulating layer drainage channel with room temperature water inlet, improves initial water temperature；This mode both can shaft bottom every
Loss caused by heat transfer during exhausted recirculated water, and the thermal capacitance that this hot water improves initial water can be used；
(4) it refuses stratum after low-temperature heat down-hole casing to link up, high-temperature heating underground, which enters screen casing or slot pipe, to be made
Perforating and fracturing is carried out with cased hole completion, high-temperature heating well global cycle water is roughly the same；Low-temperature heat well can carry out tentatively
Stratum is refused after heating to link up, and reduces the injury to stratum and water flooding；High-temperature heating well is linked up with stratum but is still carried out
Circulation, not only can be further improved water temperature and also can not extraction underground water only carry out thermodynamic cycle；
(5) low-temperature heat well and high-temperature heating well are three layers that two layers of concentric tube of tripping in forms in casing ring-like with one heart
Structure, three layers of concentric endless tube structure are arranged concentrically by pit shaft outer layer sleeve, insulating tube, inner tube from outside to inside,
Spiral centering device is used between wellbore casing and insulating layer pipe, makes in downhole pipeline righting and pit shaft always and makes hydrothermal solution in casing
Water forms turbulent flow, end stream improves the thermal efficiency；Insulating tube is supported with insulating tube and inner tube by insulating layer bracket, insulating layer Guan Yubao
Wen Guanyu inner tube is integrally formed；The method makes underground not generate power tool, reduces underground labyrinth, benefit to greatest extent
The optimal hydrothermal solution way of contact in shaft bottom is formed with hydrodynamics and engineering mechanics method optimizing.
Detailed description of the invention
Fig. 1 is a kind of heating heating well construction of the present invention wherein one group of independence well group structural schematic diagram；
Fig. 2 is spiral centering device structural schematic diagram in a kind of heating heating well construction of the present invention.
In figure, 1. low-temperature heat wells, 2. high-temperature heating wells, 3. pit shaft outer layer sleeves, 4. insulating tubes, 5. inner tubes, 6. notes
Water layer, 7. insulating layers, 8. draw water layer, 9. spiral centering devices.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Well construction is heated in a kind of heating of the present invention, and structure is as shown in Figure 1, include 2 groups of well of low-temperature heat well 1 and high-temperature heating
It closes, wherein the quantitative proportion >=1:1 or low-temperature heat well 1 and high-temperature heating well 2 of high-temperature heating well 2 and low-temperature heat well 1
Quantitative proportion >=1:1, do not linked up with stratum after 1 setting of casing of low-temperature heat well, high-temperature heating well 2 and stratum are linked up, and are located at ground
Connection realizes that hot and cold water is neutralized and exchanged between the low-temperature heat well 1 and high-temperature heating well 2 of face part.
Low-temperature heat well 1 and high-temperature heating well 2 are three layers that two layers of concentric tube of tripping in forms in casing ring-like with one heart
Structure, three layers of concentric ring type structure be successively from outside to inside be arranged concentrically by pit shaft outer layer sleeve 3, insulating tube 4, inner tube 5 and
Be followed successively by water filling layer 6, insulating layer 7 and the layer 8 that draws water from outside to inside at, low-temperature heat well 1, wherein water filling layer 6 and insulating layer 7 it
Between form outer layer channel, which is heating channel, forms inner-layer channel between insulating layer 7 and the layer 8 that draws water, and the internal layer is logical
Road is heat preservation channel；High-temperature heating well 2 is followed successively by the layer 8 that draws water, insulating layer 7 and water filling layer 6 from outside to inside, wherein 8 He of layer of drawing water
Outer layer channel is formed between insulating layer 7, which is heating channel, and it is logical to form internal layer between insulating layer 7 and water filling layer 6
Road, the inner-layer channel are heat preservation channel, and the water filling layer 6 of low-temperature heat well 1 and the layer 8 that draws water for being heated at high temperature well 2 are by pit shaft
The toroidal cavity that outer layer sleeve inner wall and heat preservation pipe outer wall are formed, the annular formed between 5 outer wall of 4 inner wall of insulating tube and inner tube
Cavity is insulating layer 7.
The pressure pipe that insulating tube 4 and inner tube 5 are structure as a whole.
As shown in Fig. 2, section gap is provided with spiral centering device 9 between pit shaft outer layer sleeve 3 and insulating tube 4, make pit shaft
It is kept fixed spacing between outer layer sleeve 3 and insulating tube 4, spiral centering device 9 includes the circular passage of pipe dress, around circular passage
Be placed with the circular continuous support blade of toroidal helical, spiral centering device can it is independently installed with outside tube wall, can also be with tubing one
Body formed, the continuous blade of tube wall external spiral decline makes water flow by being formed after blade along the downward water flow of direction blade, heat preservation
Centralizer is also equipped between pipe 4 and inner tube 5.
It is one or a set of that spiral centering device 9 is divided into every 5~20m setting between the setting of pipe axial direction.
Low-temperature heat well 1 and high-temperature heating well 2 are straight well, horizontal well any combination.
Well construction is heated in a kind of heating of the present invention, is heated at high temperature the quantitative proportion >=1:1 or low temperature of well and low-temperature heat well
Quantitative proportion >=1:1 of heated well and high-temperature heating well, is not linked up with stratum after low-temperature heat down-hole casing, is heated at high temperature well root
Small-scale efficient reservoir reconstruction is carried out using perforation after screen casing or cased hole completion according to situation and stratum is linked up, and makes normal-temperature water by low temperature
Entered after high-temperature heating well and stratum circulation after heated well circulating-heating by surface pipeline network and enters ground hole plate acquisition high heating value
Water, low-temperature heat well feature are that not stratum fluid exchange, shaft bottom is unpowered tool are avoided using insulating layer isolation hot and cold water
Heating power, which transmits mutually, leads to thermodynamic loss；High-temperature heating well equally uses three layers of concentric endless tube structure, and insulating layer completely cuts off hot and cold water
Temperature retains high-temperature-hot-water heat to greatest extent, and underground heat well construction is also classified into straight well and horizontal well, and straight well and straight can be used
The mode that well, horizontal well and horizontal well, straight well and horizontal well are used in mixed way；All use three layers of concentric endless tube structure, insulating tube
Can be structure as a whole with internal layer pumping (note) layer, which reduces cost, insulating layer and internal layer horizontal segment using pressure pipe according to well depth, uses guarantor
Warm layer supporting structure, insulating layer outer layer and pit shaft outer layer sleeve make inner tube and the borehole wall using segmentation insulating layer support helix centralizer
It is kept fixed spacing, while water flow being enable to make water maximum by the different fluid mechanical structure that helical structure forms turbulent flow and end stream
It is contacted with the borehole wall (reservoir) and absorbs more thermal energy, improve heat energy efficiency.
Low-temperature heat well is entered by room temperature water inlet by low-temperature heat well shaft outer layer sleeve and low-temperature heat well insulating layer
The low-temperature heat well annular injection water layer (outer layer ring) of pipe composition is divided into two strands after being recycled to shaft bottom, and main function is after heating
Water flow enter low-temperature heat well draw water the low-temperature heat well that layer pipe is formed draw water layer (internal layer) reach ground by entering after gate
Pipe network, another one stream of water is from shaft bottom by being taken out behind low-temperature heat well shaft bottom by low-temperature heat well insulating layer pipe and low-temperature heat well
The low-temperature heat well insulating layer (middle layer ring) that water layer pipe is formed enters surface pipeline network by gate.
High-temperature heating well injects the high-temperature heating well that high-temperature heating well water filling layer pipe is formed by ground thermal compensation device and infuses
Water layer (internal layer) is divided into two strands after being recycled to shaft bottom, mainly heats water and passes through high-temperature heating casing and high-temperature heating well heat preservation
Layer pipe composition high-temperature heating well annular space draw water layer (outer layer ring) by gate arrival ground, another one stream of water from shaft bottom by by
High-temperature heating well insulating layer pipe and the high-temperature heating well insulating layer (middle layer ring) for being heated at high temperature well water filling layer pipe formation pass through gate
Reach surface pipeline network.
Section gap is provided with spiral centering device between pit shaft outer layer sleeve and insulating tube, is kept fixed inner tube with the borehole wall
Spacing, while water flow being enable to make water maximum and the borehole wall by the different fluid mechanical structure that helical structure forms turbulent flow and end stream
(reservoir) contact absorbs more thermal energy, improves heat energy efficiency.
It is heated at high temperature well construction by surface pipe sealing top broken ground, two, which spud in, enters target zone (using horizontal well
For) finishing drilling, tripping in high-temperature heating well completion casing, tripping in screen casing or slot pipe can not be into well cementation, in the light of actual conditions
It carries out linking up hot rock stratum if necessary, perforation, gaza's pressure break fracturing work, then tripping in pair can be carried out if you need to link up hot salt cleft
Layer pipe.
Insulating layer pipe and heat zone layer pipe that draw water form an insulating layer pumping channel, and insulating layer pumping channel is pumped using insulating layer
Hot water is extracted out from shaft bottom by ground, and effect two temperature range water of isolation interact, avoid finally being discharged heat loss；High temperature
Heated well fills the water layer pipe and forms internal channel in innermost layer, passes through injection well bottom behind ground；It is heated at high temperature well water filling and extracted amount
Guarantee roughly the same, it is ensured that not exploiting groundwater only carries out the exchange of underground water heating power.
Well construction is heated in a kind of heating of the present invention, and three layers of concentric endless tube structure are integrally formed or pacify in pit shaft inner tube string
Dress underground does not have power-equipment and power part, only relies on fluid mechanics principle and structure component is heated, kept the temperature.To well
Bottom structure optimizes, and produces rationally efficient shaft bottom heating means, while not forming power device in shaft bottom and (reducing the later period
Maintenance).Solve the problems, such as conventional stratum do not link up, round-robin method stratum thermal energy exchange low efficiency in casing, and solve underground water
It destructively bottom water resource and endangers reservoir stratum energy is caused to lose during extraction, the disadvantages such as stratum energy reduces.
Claims (6)
1. well construction is heated in a kind of heating, which is characterized in that it is composed including low-temperature heat well (1) and high-temperature heating well (2),
Wherein, it is heated at high temperature quantitative proportion >=the 1:1 or low-temperature heat well (1) and high-temperature heating well of well (2) and low-temperature heat well (1)
(2) quantitative proportion >=1:1 is not linked up with stratum after low-temperature heat well (1) setting of casing, and high-temperature heating well (2) and stratum are linked up,
Connection realizes that hot and cold water is neutralized and exchanged between the low-temperature heat well (1) and high-temperature heating well (2) of above ground portion.
2. well construction is heated in a kind of heating according to claim 1, which is characterized in that the low-temperature heat well (1) and height
Warm heated well (2) is three layers of concentric ring type structure that two layers of concentric tube of tripping in forms in casing, and described three layers ring-like with one heart
Structure is arranged concentrically by pit shaft outer layer sleeve (3), insulating tube (4), inner tube (5) from outside to inside, low-temperature heat
Well (1) is followed successively by water filling layer (6), insulating layer (7) and the layer that draws water (8) from outside to inside, wherein fill the water layer (6) and insulating layer (7) it
Between form outer layer channel, the outer layer channel be heating channel, form inner-layer channel between insulating layer (7) and the layer that draws water (8), this is interior
Layer channel is heat preservation channel；High-temperature heating well (2) is followed successively by the layer that draws water (8), insulating layer (7) and water filling layer (6) from outside to inside,
In, outer layer channel is formed between the layer that draws water (8) and insulating layer (7), which is heating channel, insulating layer (7) and water filling
Inner-layer channel is formed between layer (6), which is heat preservation channel, the water filling layer (6) and high-temperature heating of low-temperature heat well (1)
The layer that draws water (8) of well (2) is the toroidal cavity formed by pit shaft outer layer sleeve inner wall and heat preservation pipe outer wall, and insulating tube (4) is interior
The toroidal cavity formed between wall and inner tube (5) outer wall is insulating layer (7).
3. well construction is heated in a kind of heating according to claim 2, which is characterized in that the insulating tube (4) and inner tube
(5) pressure pipe being structure as a whole.
4. well construction is heated in a kind of heating according to claim 2, which is characterized in that the pit shaft outer layer sleeve (3) with
Section gap is provided with spiral centering device (9) between insulating tube (4), makes to keep between pit shaft outer layer sleeve (3) and insulating tube (4)
Constant spacing, spiral centering device (9) include the circular passage of pipe dress, and circular continuous of toroidal helical is placed with around circular passage
Support blade, spiral centering device independently installed can also be integrally formed with outside tube wall with tubing, the company of tube wall external spiral decline
Continuous blade makes water flow by being formed after blade along the downward water flow of direction blade, is also provided between insulating tube (4) and inner tube (5)
There is centralizer.
5. well construction is heated in a kind of heating according to claim 4, which is characterized in that the spiral centering device (9) is along pipe
It is one or a set of that every 5~20m setting is divided between the setting of axial direction.
6. well construction is heated in a kind of described in any item heating according to claim 1~5, which is characterized in that the low-temperature heat
Well (1) and high-temperature heating well (2) are straight well, horizontal well any combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359555.8A CN110185401A (en) | 2019-04-30 | 2019-04-30 | A kind of heating heating well construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910359555.8A CN110185401A (en) | 2019-04-30 | 2019-04-30 | A kind of heating heating well construction |
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| Publication Number | Publication Date |
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| CN110185401A true CN110185401A (en) | 2019-08-30 |
Family
ID=67715435
Family Applications (1)
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| CN201910359555.8A Pending CN110185401A (en) | 2019-04-30 | 2019-04-30 | A kind of heating heating well construction |
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Citations (9)
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|---|---|---|---|---|
| US3874174A (en) * | 1974-05-06 | 1975-04-01 | Clarence Kirk Greene | Geothermal heat exchange method and apparatus |
| CN1072010A (en) * | 1992-10-13 | 1993-05-12 | 上海桑菱环境能源研究所 | A kind of heat pump heating and cooling system |
| CN1590922A (en) * | 2003-09-04 | 2005-03-09 | 柳溪立 | Method of heat exchange using terrestrial heat |
| CN2929149Y (en) * | 2006-05-23 | 2007-08-01 | 李生虎 | Vortex rigid sleeve tube centralizer |
| JP2010261633A (en) * | 2009-05-01 | 2010-11-18 | Nemoto Kikaku Kogyo Kk | Multiple-tube for heat exchanger and geothermal air conditioning system using the same |
| CN106170665A (en) * | 2013-10-15 | 2016-11-30 | 保罗·W·苏维 | Including the ground heat-exchange system of geothermal heat exchanger and correlation technique |
| CN108027174A (en) * | 2015-06-30 | 2018-05-11 | 韩国生产技术研究院 | Geothermal well instlated tubular, geothermal well-pipe assembly and geothermal well heat-exchange system and its construction method |
| CN108412462A (en) * | 2018-03-16 | 2018-08-17 | 中国石油大学(北京) | A method of it can with well recharge exploitation of geothermal |
| CN209877402U (en) * | 2019-04-30 | 2019-12-31 | 韩金井 | Underground heating well structure |
-
2019
- 2019-04-30 CN CN201910359555.8A patent/CN110185401A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3874174A (en) * | 1974-05-06 | 1975-04-01 | Clarence Kirk Greene | Geothermal heat exchange method and apparatus |
| CN1072010A (en) * | 1992-10-13 | 1993-05-12 | 上海桑菱环境能源研究所 | A kind of heat pump heating and cooling system |
| CN1590922A (en) * | 2003-09-04 | 2005-03-09 | 柳溪立 | Method of heat exchange using terrestrial heat |
| CN2929149Y (en) * | 2006-05-23 | 2007-08-01 | 李生虎 | Vortex rigid sleeve tube centralizer |
| JP2010261633A (en) * | 2009-05-01 | 2010-11-18 | Nemoto Kikaku Kogyo Kk | Multiple-tube for heat exchanger and geothermal air conditioning system using the same |
| CN106170665A (en) * | 2013-10-15 | 2016-11-30 | 保罗·W·苏维 | Including the ground heat-exchange system of geothermal heat exchanger and correlation technique |
| CN108027174A (en) * | 2015-06-30 | 2018-05-11 | 韩国生产技术研究院 | Geothermal well instlated tubular, geothermal well-pipe assembly and geothermal well heat-exchange system and its construction method |
| CN108412462A (en) * | 2018-03-16 | 2018-08-17 | 中国石油大学(北京) | A method of it can with well recharge exploitation of geothermal |
| CN209877402U (en) * | 2019-04-30 | 2019-12-31 | 韩金井 | Underground heating well structure |
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