CN106869864A - A kind of dry-hot-rock geothermal recovery method and device - Google Patents
A kind of dry-hot-rock geothermal recovery method and device Download PDFInfo
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- CN106869864A CN106869864A CN201710106298.8A CN201710106298A CN106869864A CN 106869864 A CN106869864 A CN 106869864A CN 201710106298 A CN201710106298 A CN 201710106298A CN 106869864 A CN106869864 A CN 106869864A
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- 239000011435 rock Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000001174 ascending effect Effects 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000005553 drilling Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- CCEKAJIANROZEO-UHFFFAOYSA-N sulfluramid Chemical group CCNS(=O)(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F CCEKAJIANROZEO-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
-
- 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
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Mining & Mineral Resources (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of dry-hot-rock geothermal recovery method, comprise the following steps：(1) excavating shaft is to dry-hot-rock geothermal reservoir；(2) in the different directions digging laneway of dry-hot-rock geothermal reservoir；(3) heat exchange pipeline is laid in the tunnel, flow in pipes and output channel is laid in the vertical shaft, flow in pipes, heat exchange pipeline and output channel are sequentially communicated composition circulating line, and hot terminal is adopted in circulating line connection；(4) heat transfer medium one is injected in the tunnel, heat transfer medium two is injected in the circulating line, the heat of dry-hot-rock geothermal reservoir passes to the heat transfer medium two in circulating line by heat transfer medium one, heat transfer medium two in circulating line absorbs heat, and hot terminal is adopted into heat supply, that is, complete the underground heat exploitation of hot dry rock.Present invention additionally comprises dry-hot-rock geothermal quarrying apparatus.Recovery method of the present invention is simple, easy to operate, efficiency high, directly can carry out heat supply or generating using the underground heat of exploitation, is suitable to commercialized being widely popularized.
Description
Technical field
The present invention relates to geothermal energy development field, more particularly to a kind of dry-hot-rock geothermal recovery method and device.
Background technology
Geothermal energy is one of regenerative resource with larger prospect, with other new energy such as solar energy, wind energy and biology
Mass-energy is compared, and geothermal energy extensively, by extraneous factor is influenceed small (such as round the clock, wind speed, the temperature difference), carbon emission amount and safeguarded into distribution
This low feature.China is located in circum pacific geothermal belt and Mediterranean-HIMALAYA GEOTHERMAL BELT region, and geothermal energy resources enrich.But
Be traditional geothermal reservoir be usually seated at that surface temperature is higher, geological structure active and active volcano near, be limited to its reservoir ground
Point and reserves limitation, abundant geothermal energy cannot be utilized rationally.With the progress of geological exploration development technique, reservoir deep earth heart
Resource such as hot dry rock etc. is paid close attention to by vast.Dry-hot-rock geothermal resource distribution is wide, and reserves are big, without geographical constraints, are futures
The key areas of geothermal energy development.
At present, the exploitation of dry-hot-rock geothermal energy mainly uses drilling fracturing, but, drilling fracturing is opened by injecting fluid heat transferring
Hair technical efficiency is low, cannot carry out large scale mining, and the underground heat of exploitation cannot directly Collection utilization, loss during collection
It is larger.
The content of the invention
In view of this, The embodiment provides a kind of efficiency high, commercialization directly using underground heat is exploited can be suitable to
The dry-hot-rock geothermal recovery method and device of popularization.
Embodiments of the invention provide a kind of dry-hot-rock geothermal recovery method, comprise the following steps：
(1) excavating shaft is to dry-hot-rock geothermal reservoir；
(2) in the different directions digging laneway of dry-hot-rock geothermal reservoir；
(3) heat exchange pipeline is laid in the tunnel, flow in pipes and output channel, the note is laid in the vertical shaft
Enter pipeline, heat exchange pipeline and output channel and be sequentially communicated composition circulating line, hot terminal is adopted in the circulating line connection；
(4) heat transfer medium one is injected in the tunnel, heat transfer medium two, hot dry rock ground is injected in the circulating line
The heat of heat reservori passes to the heat transfer medium two in circulating line, the heat transfer medium two in circulating line by heat transfer medium one
Heat is absorbed, and hot terminal is adopted into heat supply, that is, complete the underground heat exploitation of hot dry rock.
Further, in the step (2), in the varying level direction digging laneway of dry-hot-rock geothermal reservoir.
Further, in the step (3), adopt hot terminal and be located at the well head of vertical shaft, the flow in pipes and output channel
In extending to dry-hot-rock geothermal reservoir from the well head of vertical shaft.
Further, the circulating line is connected by heat-exchanger rig and adopts hot terminal, it is described adopt hot terminal for electricity generation system or
Person's heating system.
Further, in the step (4), the heat transfer medium one and heat transfer medium two are water, the heat transfer medium one
Full of tunnel, and heat exchange pipeline is submerged wherein completely.
Further, in the step (4), the heat transfer medium two in the circulating line injects from flow in pipes, heat transfer
Medium two flows into heat exchange pipeline along flow in pipes, and the heat of the transmission of heat transfer medium one is absorbed in heat exchange pipeline, absorbs heat
The heat transfer medium two of amount flows into output channel, and heat supply is adopted into hot terminal by output channel.
A kind of dry-hot-rock geothermal quarrying apparatus, including circulating line, the circulating line by flow in pipes, heat exchange pipeline and
Output channel is sequentially communicated composition, and hot terminal, the flow in pipes are adopted in the connectivity part connection of the flow in pipes and output channel
It is arranged in vertical shaft with output channel, the vertical shaft is dug to dry-hot-rock geothermal reservoir from ground, the dry-hot-rock geothermal reservoir
Different directions dig tunnel, and the heat exchange pipeline is located in tunnel, and heat transfer medium one, the heat transfer medium are full of in the tunnel
One submerges wherein heat exchange pipeline, and heat transfer medium two is full of in the circulating line, and the heat transfer medium two is from flow in pipes
Injection, heat transfer medium two flows into heat exchange pipeline along flow in pipes, and the heat of the transmission of heat transfer medium one is absorbed in heat exchange pipeline,
The heat transfer medium two for absorbing heat flows into output channel, and heat supply is adopted into hot terminal by output channel.
Further, the connectivity part of the flow in pipes and output channel is connected by heat-exchanger rig and adopts hot terminal, described defeated
Go out pipeline by the heat transmission of heat transfer medium two to heat-exchanger rig, the heat transfer medium two for being absorbed heat again flows into ascending pipe
The heat of the transmission of road cyclic absorption heat transfer medium one, has obtained the heat-exchanger rig of heat by heat supply to adopting hot terminal.
Further, it is described to adopt hot terminal and be located at the well head of vertical shaft, it is described to adopt hot terminal for electricity generation system or heat supply system
System.
Further, the heat transfer medium one and heat transfer medium two are water, the varying level of the dry-hot-rock geothermal reservoir
Direction Wa You tunnels.
Compared with prior art, the invention has the advantages that：Recovery method is simple, easy to operate, efficiency high, can be straight
Connect carries out heat supply or generating using the underground heat of exploitation, is suitable to commercialized being widely popularized.
Brief description of the drawings
Fig. 1 is an a kind of schematic diagram of dry-hot-rock geothermal quarrying apparatus of the invention.
Fig. 2 is an a kind of flow chart of dry-hot-rock geothermal recovery method of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is further described.
Fig. 1 is refer to, The embodiment provides a kind of dry-hot-rock geothermal quarrying apparatus, including circulating line 3, is followed
The (not shown) of heat transfer medium two is full of in endless tube road 3, circulating line 3 is by flow in pipes 32, heat exchange pipeline 31 and efferent duct
Road 33 is sequentially communicated composition.
Flow in pipes 32 and output channel 33 are arranged in vertical shaft 1, and vertical shaft 1 is dug to dry-hot-rock geothermal reservoir from ground, are done
The different directions of hot rock geothermal reservoir dig tunnel 2, and heat exchange pipeline 31 is located in tunnel 2, and heat transfer medium one is full of in tunnel 2
21, heat transfer medium 1 submerges wherein heat exchange pipeline 31.
Hot terminal 4 is adopted in the connectivity part connection of flow in pipes 32 and output channel 33, and heat transfer medium two is from flow in pipes 32
Injection, heat transfer medium two flows into heat exchange pipeline 31 along flow in pipes 32, and the biography of heat transfer medium 1 is absorbed in heat exchange pipeline 31
The heat passed, the heat transfer medium two for absorbing heat flows into output channel 33, and heat supply is adopted into heat by output channel 33
Terminal 4.In one embodiment, the connectivity part of flow in pipes 32 and output channel 33 is connected by heat-exchanger rig 5 and adopts hot terminal 4,
By the heat transmission of heat transfer medium two to heat-exchanger rig 5, the heat transfer medium two for being absorbed heat is again flowed into output channel 33
The heat of the transmission of 32 cyclic absorption heat transfer medium of flow in pipes 1, has obtained the heat-exchanger rig 5 of heat by heat supply to adopting
Hot terminal 4.
Fig. 2 is refer to, a kind of dry-hot-rock geothermal recovery method is comprised the following steps：
(1) excavating shaft 1 is to dry-hot-rock geothermal reservoir；
(2) in the different directions digging laneway 2 of dry-hot-rock geothermal reservoir, so as to the underground heat of fully collection different directions；
In one embodiment, in the varying level direction digging laneway 2 of dry-hot-rock geothermal reservoir, horizontally arranged tunnel 2 is compared to it
His arrangement mode, effectively adopts hot area increase；
(3) the laying heat exchange pipeline 31 in tunnel 2, laying flow in pipes 32 and output channel 33, ascending pipe in vertical shaft 1
Road 32 and output channel 33 are extended in dry-hot-rock geothermal reservoir from the well head of vertical shaft 1, flow in pipes 32, the and of heat exchange pipeline 31
Output channel 33 is sequentially communicated composition circulating line 3, and the connection of circulating line 3 is adopted hot terminal 4, adopts the well that hot terminal 4 is located at vertical shaft 1
At mouthful, it is easy to direct utilization to adopt heat, in one embodiment, circulating line 3 is connected by heat-exchanger rig 5 and adopts hot terminal 4, adopts hot whole
End 4 is electricity generation system or heating system；
(4) the injection heat transfer medium 1 in the tunnel 2, in one embodiment, heat transfer medium 1 is water, and heat transfer is situated between
Matter 1 is full of tunnel 2, and heat exchange pipeline 31 is submerged wherein completely；Heat transfer medium two is injected in circulating line 3 (in figure not
Show), in one embodiment, heat transfer medium two is water, and the heat of dry-hot-rock geothermal reservoir is passed to by heat transfer medium 1
Heat transfer medium two in circulating line 3, the heat transfer medium two in circulating line 3 absorbs heat, and heat supply is adopted into hot terminal
4, in one embodiment, the injection from flow in pipes 32 of heat transfer medium two in circulating line 3, heat transfer medium two is along flow in pipes
32 flow into heat exchange pipeline 31, and the heat of the transmission of heat transfer medium one is absorbed in heat exchange pipeline 31, and the heat transfer for absorbing heat is situated between
Matter two flows into output channel 33, and heat supply is adopted into hot terminal 4 by output channel 33, that is, the underground heat for completing hot dry rock is opened
Adopt.
Recovery method of the present invention is simple, easy to operate, efficiency high, directly can carry out heat supply or generating using the underground heat of exploitation,
It is suitable to commercialized being widely popularized.
In the case where not conflicting, the feature in embodiment herein-above set forth and embodiment can be combined with each other.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of dry-hot-rock geothermal recovery method, it is characterised in that comprise the following steps：
(1) excavating shaft is to dry-hot-rock geothermal reservoir；
(2) in the different directions digging laneway of dry-hot-rock geothermal reservoir；
(3) heat exchange pipeline is laid in the tunnel, flow in pipes and output channel, the ascending pipe is laid in the vertical shaft
Road, heat exchange pipeline and output channel are sequentially communicated composition circulating line, and hot terminal is adopted in the circulating line connection；
(4) heat transfer medium one is injected in the tunnel, heat transfer medium two, dry-hot-rock geothermal storage is injected in the circulating line
The heat of layer passes to the heat transfer medium two in circulating line by heat transfer medium one, and the heat transfer medium two in circulating line absorbs
Heat, and hot terminal is adopted into heat supply, that is, complete the underground heat exploitation of hot dry rock.
2. dry-hot-rock geothermal recovery method according to claim 1, it is characterised in that in the step (2), in hot dry rock
The varying level direction digging laneway of geothermal reservoir.
3. dry-hot-rock geothermal recovery method according to claim 1, it is characterised in that in the step (3), adopt hot terminal
It is located at the well head of vertical shaft, the flow in pipes and output channel are extended in dry-hot-rock geothermal reservoir from the well head of vertical shaft.
4. dry-hot-rock geothermal recovery method according to claim 1, it is characterised in that the circulating line is filled by exchanging heat
Put connection and adopt hot terminal, it is described to adopt hot terminal for electricity generation system or heating system.
5. dry-hot-rock geothermal recovery method according to claim 1, it is characterised in that in the step (4), the heat transfer
Medium one and heat transfer medium two are water, and the heat transfer medium one is full of tunnel, and heat exchange pipeline is submerged wherein completely.
6. dry-hot-rock geothermal recovery method according to claim 1, it is characterised in that in the step (4), the circulation
Heat transfer medium two in pipeline injects from flow in pipes, and heat transfer medium two flows into heat exchange pipeline along flow in pipes, and in heat exchange
The heat of the transmission of heat transfer medium one is absorbed in pipeline, the heat transfer medium two for absorbing heat flows into output channel, and by output
Heat supply is adopted hot terminal by pipeline.
7. a kind of dry-hot-rock geothermal quarrying apparatus, it is characterised in that including circulating line, the circulating line by flow in pipes,
Heat exchange pipeline and output channel are sequentially communicated composition, and hot terminal, institute are adopted in the connectivity part connection of the flow in pipes and output channel
State flow in pipes and output channel is arranged in vertical shaft, the vertical shaft is dug to dry-hot-rock geothermal reservoir, the hot dry rock from ground
The different directions of geothermal reservoir dig tunnel, and the heat exchange pipeline is located in tunnel, and heat transfer medium one, institute are full of in the tunnel
State heat transfer medium one heat exchange pipeline submerges wherein, be full of heat transfer medium two in the circulating line, the heat transfer medium two from
Injection in flow in pipes, heat transfer medium two flows into heat exchange pipeline along flow in pipes, and heat transfer medium one is absorbed in heat exchange pipeline
The heat of transmission, the heat transfer medium two for absorbing heat flows into output channel, and heat supply is adopted into hot whole by output channel
End.
8. dry-hot-rock geothermal quarrying apparatus according to claim 7, it is characterised in that the flow in pipes and output channel
Connectivity part connected by heat-exchanger rig and adopt hot terminal, the output channel fills the heat transmission of heat transfer medium two to heat exchange
Put, the heat transfer medium two for being absorbed heat again flows into the heat that flow in pipes cyclic absorption heat transfer medium one is transmitted, and obtains
The heat-exchanger rig of heat is by heat supply to being adopted hot terminal.
9. dry-hot-rock geothermal quarrying apparatus according to claim 7, it is characterised in that described to adopt hot terminal and be located at vertical shaft
It is described to adopt hot terminal for electricity generation system or heating system at well head.
10. dry-hot-rock geothermal quarrying apparatus according to claim 7, it is characterised in that the heat transfer medium one and heat transfer
Medium two is water, the varying level direction Wa You tunnels of the dry-hot-rock geothermal reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106298.8A CN106869864A (en) | 2017-02-27 | 2017-02-27 | A kind of dry-hot-rock geothermal recovery method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710106298.8A CN106869864A (en) | 2017-02-27 | 2017-02-27 | A kind of dry-hot-rock geothermal recovery method and device |
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| CN106869864A true CN106869864A (en) | 2017-06-20 |
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| CN201710106298.8A Pending CN106869864A (en) | 2017-02-27 | 2017-02-27 | A kind of dry-hot-rock geothermal recovery method and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339849A (en) * | 2018-10-15 | 2019-02-15 | 中国矿业大学 | A kind of multilevel deep well temperature reduction and terrestrial heat utilization system and technique |
| CN110030745A (en) * | 2019-01-12 | 2019-07-19 | 力软科技(美国)有限责任公司 | A kind of geothermal exploitation system and its construction method |
| CN110486961A (en) * | 2019-09-18 | 2019-11-22 | 信达科创（唐山）石油设备有限公司 | A kind of underground heat Continuous Heat Transfer pipeline and heat-exchange system |
| WO2020143066A1 (en) * | 2019-01-12 | 2020-07-16 | 力软科技(美国)有限责任公司 | Geothermal exploitation system and construction method therefor |
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| CN105737232A (en) * | 2016-04-19 | 2016-07-06 | 济南国海能源科技有限公司 | High-efficiency clean energy source heat supplying system using heat energy of hot dry rocks |
| CN105909214A (en) * | 2016-04-14 | 2016-08-31 | 中国石油大学(华东) | Method for exploiting compact dry heat rock geothermal energy by utilizing long horizontal well self-circulation structure |
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| JP2003148079A (en) * | 2001-11-12 | 2003-05-21 | Kubota Corp | Manufacturing method for equipment for exchanging heat with ground, and pile for civil engineering and construction, used for the manufacturing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339849A (en) * | 2018-10-15 | 2019-02-15 | 中国矿业大学 | A kind of multilevel deep well temperature reduction and terrestrial heat utilization system and technique |
| CN109339849B (en) * | 2018-10-15 | 2019-08-20 | 中国矿业大学 | A kind of multilevel deep well temperature reduction and terrestrial heat utilization system and technique |
| CN110030745A (en) * | 2019-01-12 | 2019-07-19 | 力软科技(美国)有限责任公司 | A kind of geothermal exploitation system and its construction method |
| WO2020143066A1 (en) * | 2019-01-12 | 2020-07-16 | 力软科技(美国)有限责任公司 | Geothermal exploitation system and construction method therefor |
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| CN110486961A (en) * | 2019-09-18 | 2019-11-22 | 信达科创（唐山）石油设备有限公司 | A kind of underground heat Continuous Heat Transfer pipeline and heat-exchange system |
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