CN103512254A - Deep well system used for enhanced geothermal system and boring method thereof - Google Patents
Deep well system used for enhanced geothermal system and boring method thereof Download PDFInfo
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- CN103512254A CN103512254A CN201210381400.2A CN201210381400A CN103512254A CN 103512254 A CN103512254 A CN 103512254A CN 201210381400 A CN201210381400 A CN 201210381400A CN 103512254 A CN103512254 A CN 103512254A
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- 238000000034 method Methods 0.000 title claims description 18
- 238000005553 drilling Methods 0.000 claims description 20
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 230000000638 stimulation Effects 0.000 abstract description 9
- 230000014759 maintenance of location Effects 0.000 abstract 9
- 238000002347 injection Methods 0.000 description 25
- 239000007924 injection Substances 0.000 description 25
- 238000005755 formation reaction Methods 0.000 description 14
- 230000002596 correlated effect Effects 0.000 description 12
- 230000006399 behavior Effects 0.000 description 8
- 239000011435 rock Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000012530 fluid Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
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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
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention relate to a deep well system used for an enhanced geothermal system (EGS). The system comprises a first deep well which is formed with a first bottom hole, a second deep well which drills at a distance from the first deep well and is provided with a second bottom hole and a third bottom hole, a first artificial retention layer, a second artificial retention layer, and a third artificial retention layer. The first bottom hole is disposed between the second bottom hole and the third bottom hole. The first artificial retention layer is formed on the first bottom hole through hydraulic stimulation. The second artificial retention layer is formed on the second bottom hole through hydraulic stimulation. The third artificial retention layer is formed on the third bottom hole through hydraulic stimulation, and the third artificial retention layer is connected with the first artificial retention layer and the second artificial retention layer.
Description
Technical field
The present invention relates to improve with low cost deep shaft system and the boring method thereof for enhancement mode geothermal system (EGS) of underground heat productivity.
Background technology
With the side of natural resources, geothermal energy is huge to be arrived, and can reach the degree of the hundreds of of annual whole energy-output ratio or thousands of times, therefore, and enhancement mode geothermal system (Enhanced Geothermal System; EGS) as reducing the discharge of carbon dioxide and the new renewable sources of energy of sustainable supply, get most of the attention.
Enhancement mode geothermal system is to have improved high temperature rock mass (Hot Dry Rock; HDR) as the technology of object, enough but because the underground heat that does not have fluid or permeability lowly and not to have the required flow of generating while storing layer, by manually improving permeability, thereby produces the technology of the system that can generate electricity in temperature.Conventionally, EGS is after excavating underground deep, and execution hydraulic pressure is suppressed in utilization stimulates (Hydraulic stimulation) to generate after permeable formation, and the high-temperature geothermal water that carries out heat exchange by this artificial permeable formation is extracted into producing well and is used in generating.
For the formation of EGS need to be passed through, the selected plot that can reach the thermal source that is sufficient to generating; The Injection Well for geothermal power generation of drilling well high depth (injection well) and producing well (production well); By hydraulic pressure, stimulate the process that manually stores layer (stimulated reservoir) that generates.
Although underground heat output can be along with manually storing overall volume or the crack length of layer, or the increase of the number of Injection Well or producing well and increasing, the expense that the drilling well of deep-well and hydraulic pressure stimulate also can increase severely, and therefore the problem that cost performance reduces can occur.
Arrange in the situation of dual (duplet) formula of an Injection Well and a producing well (with reference to Fig. 1), the bottom outlet of the bottom outlet of Injection Well 12 (downhole) 12a and producing well 13 can interconnect according to manually storing layer 14, and forms closed circulation by pump 14 and the electricity generation system 15 on ground.The example of a plurality of deep-wells is set as increasing generate output, in the situation of triple (triplet) formula, is to supply feedwater by an Injection Well, and by two producing wells of independent drilling well, takes in back and forth the mode of the GEOTHERMAL WATER of row heat exchange.But, because need to bore from ground three wells, therefore there is the problem increasing severely for boring the whole cost of deep-well and hydraulic pressure stimulation.
Summary of the invention
(technical problem that will solve)
The present invention makes in view of the above problems, and its object is to be provided for deep shaft system and the boring method thereof of enhancement mode geothermal system (EGS), can improve underground heat productivity with low cost.
(means of dealing with problems)
In order to solve the problems of the technologies described above, the deep shaft system for enhancement mode geothermal system (EGS) that the present invention is correlated with, comprising: the first deep-well, forms and have the first bottom outlet; The second deep-well, with the drilling well of being separated by of described the first deep-well, has the second bottom outlet and the 3rd bottom outlet, and makes the first bottom outlet between described second and third bottom outlet; First manually stores layer, by hydraulic pressure, stimulates (hydraulic stimulation, hydraulic fracturing) to form at described the first bottom outlet; Second manually stores layer, by hydraulic pressure, is stimulated at described the second bottom outlet and is formed; And the 3rd manually store layer, by hydraulic pressure, stimulate at described the 3rd bottom outlet and form, and with described first manually store layer and described second and manually store layer and interconnect and form.
One example of being correlated with as the present invention, described the first bottom outlet to described the 3rd bottom outlet can extend along level or incline direction.
One example of being correlated with as the present invention, deep shaft system for enhancement mode geothermal system (EGS), can also comprise: the 4th bottom outlet, along direction or the distance different with described the first bottom outlet, from described the first deep-well, extend and form, and can stimulate with at least one in described the second bottom outlet or described the 3rd bottom outlet and be connected by hydraulic pressure.
One example of being correlated with as the present invention, deep shaft system for enhancement mode geothermal system (EGS), can also comprise: the 4th manually stores layer, be formed at described the 4th bottom outlet, by hydraulic pressure stimulate can with described second manually store layer or the described the 3rd manually store layer be connected.
One example of being correlated with as the present invention, described the first bottom outlet is disposed at, between described the second bottom outlet and described the 3rd bottom outlet in the plane that described the second bottom outlet and described the 3rd bottom outlet form; Described the 4th bottom outlet can be disposed at, in the plane that described the second bottom outlet and described the 3rd bottom outlet form, and the outside of described the second bottom outlet or described the 3rd bottom outlet.
In addition, the boring method of the open deep-well for enhancement mode geothermal system (EGS) of the present invention, comprising: the step that forms first deep-well with the first bottom outlet; Formation has and comprises the second bottom outlet and have the 3rd bottom outlet of different direction with described the second bottom outlet, and makes the step of second deep-well of the first bottom outlet between described the second bottom outlet and described the 3rd bottom outlet; To described the first bottom outlet, applying hydraulic pressure stimulates (hydraulic stimulation) to form the first step that manually stores layer; And to described the second bottom outlet and described the 3rd bottom outlet, apply hydraulic pressure respectively and stimulate to form respectively with described first and manually store layer interconnective second and manually store layer and the 3rd and manually store a layer step.
One example of being correlated with as the present invention, the boring method that is used for the deep-well of enhancement mode geothermal system (EGS), also comprise: along direction or the distance different with described the first bottom outlet, from described the first deep-well, extend and form and can stimulate the step with at least one the 4th bottom outlet being connected described the second bottom outlet or described the 3rd bottom outlet by hydraulic pressure.
Now, described the first bottom outlet is disposed at, between described the second bottom outlet and described the 3rd bottom outlet in the plane that described the second bottom outlet and described the 3rd bottom outlet form; Described the 4th bottom outlet can be disposed at, in the plane that the first bottom outlet and described the second bottom outlet form, and the outside of described the second bottom outlet or described the 3rd bottom outlet.
(effect of invention)
As mentioned above, deep shaft system and the boring method thereof for enhancement mode geothermal system (EGS) of according to the present invention, being correlated with, because be defaulted as, bore an Injection Well and a producing well, can effectively reduce thus the increase of the whole cost causing because of additional drilling well, and in underground heat productivity, because form each, manually store layer, there is thus the effect that can guarantee the geothermal energy that is equal to triple (triplet) mode that possesses three deep-wells.
Accompanying drawing explanation
Fig. 1 means the concept map of the enhancement mode geothermal system of the deep drilling structure with double-type.
Fig. 2 means the concept map of the enhancement mode geothermal system (EGS) with the deep shaft system 100 that the present invention is relevant.
Fig. 3 is the drilling well of deep-well for enhancement mode geothermal system (EGS) and the concept map of method of attachment that represents that successively the present invention is correlated with.
Fig. 4 means the concept map of another routine deep shaft system 300 of being correlated with according to the present invention.
(description of reference numerals)
The specific embodiment
The formation of the deep-well for enhancement mode geothermal system (EGS) of with reference to the accompanying drawings the present invention being correlated with, connection structure and boring method thereof are described in detail.
Fig. 2 means the concept map of the enhancement mode geothermal system (EGS) with the deep shaft system 100 that the present invention is relevant.
Disclosed deep shaft system 100 in this example, according to from ground to the Injection Well 110 and producing well 120 of underground deep drilling well, is arranged at ground pumping system 130Ji power plant 140 and formation closed circulation.Injection Well 110 and producing well 120, respectively from the ground of appointed place to existing the underground deep as the High temperature rocks place of thermal source to carry out drilling well, the water of supplying with by Injection Well 110, underground deep manually store layer in carry out heat exchange and after being heated, to pumping system 130, draw back.
To have a bottom outlet contrary with Injection Well 110, and producing well 120 has along different direction mutually and extends a plurality of bottom outlets.As shown in Figure 2, Injection Well 110 comprises, the first bottom outlet 111 extending at the certain position of underground deep, and producing well 120 comprises, the 3rd bottom outlet 125 that the second bottom outlet 121 extending at the certain position of underground deep and the second place at underground deep extend.This second bottom outlet 121 and the 3rd bottom outlet 125 can extend along level or incline direction in the different degree of depth, or can, in the similar degree of depth, along level or incline direction, extend.The extending direction of the second bottom outlet 121 and the 3rd bottom outlet 125 or length can be according to the stress state of rock or underground environments and difference is not limited to illustrated direction or the degree of depth.
The second bottom outlet 121 extending from producing well 120, be formed with by hydraulic pressure and stimulate second manually storing on layer 122, the three bottom outlet 125 of forming, be also formed with by hydraulic pressure stimulate form the 3rd manually store layers 126.This second manually stores layer the 122 and the 3rd manually stores layer 126 direction and mutual distance, with on the first bottom outlet 111 of Injection Well 110, form first manually store Ceng112 position and directional correlation.The first bottom outlet 111 of Injection Well 110 extends between the second bottom outlet 121 and the 3rd bottom outlet 125, and first manually stores layer 112 is stimulated and formed by hydraulic pressure, can with second manually store layer the 122 and the 3rd and manually store a layer 126 interconnective degree.About aspect, position, when the first bottom outlet 111 of Injection Well 110 forms along the different direction of the second bottom outlet 121 with producing well 120 and the 3rd bottom outlet 125, along the direction formation of intermediate degree between the second bottom outlet 121 and the 3rd bottom outlet 125; Along the direction overtime similar to the 3rd bottom outlet 125 to the second bottom outlet 121, the first bottom outlet 111 of Injection Well 110 extends and forms to the intermediate distance between the second bottom outlet 121 and the 3rd bottom outlet 125.
What manually store with first that layer 112 is connected second manually stores layer the 122 and the 3rd and manually stores layer 126, by Injection Well 110 and producing well 120, forms networks.Be supplied to Injection Well 110 water, from first, manually store layer 112 and flow out, and by second, manually store layer the 122 and the 3rd and manually store layer 126, from producing well 120, reclaim.Water through second manually store layer 122 to first manually store layer 112 during, can carry out heat exchange with High temperature rocks around and heat, thereby obtain the required heat energy of generating.
Deep shaft system as above, because be defaulted as, bore an Injection Well 110 and a producing well 120, can effectively reduce the increase of whole cost thus, and in underground heat productivity, also can guarantee the effect of the geothermal energy that is equal to triple (triplet) mode that possesses three deep-wells.
Fig. 3 is the drilling well of deep-well for enhancement mode geothermal system (EGS) and the concept map of method of attachment that represents that successively the present invention is correlated with.
In order to form deep shaft system, first can to the underground deep that has High temperature rocks, bore first deep-well 210(Fig. 3 a) in selected appointed place.In the drillng operation of the first deep-well 210, can comprise: the directive directed drilling of tool (directional drilling), tubulature (tubing) etc. in the degree of depth on ground or definitely.Afterwards, brill can be towards the first bottom outlet 211 of the first deep-well 210 of the High temperature rocks of thermal source.The first bottom outlet 211 can be along level or incline direction drilling well, and extending direction or distance can determine according to the stress characteristics of rock, target underground heat production capacity etc.
When the drilling well of the first deep-well 210 is complete, carry out the drillng operation of the second deep-well 220.The second deep-well 220 can with the drillng operation of the first deep-well 210 simultaneously or after the drilling well of the first deep-well 210, form (Fig. 3 b).First, in the certain position of the second deep-well 220, bore second bottom outlet 221 for the first bottom outlet 211 with certain distance.
When the drilling well of the second bottom outlet 221 is complete, in the relation of the second bottom outlet 211, bore the 3rd bottom outlet 225 make the first bottom outlet 211 be positioned in the middle of (Fig. 3 c).The drillng operation of the second bottom outlet 221 and the 3rd bottom outlet 225 also can comprise, makes the first bottom outlet 211 between the second bottom outlet 221 and the 3rd bottom outlet 225 and carries out directed drilling (drilling).
When the first bottom outlet 211 is complete to the drilling well of the 3rd bottom outlet 225, on certain position, be provided for packer (packer) 217(Fig. 3 d that fracturing (hydraulic fracturing) or hydraulic pressure stimulate (hydraulic stimulation)).During the installing of packer 217, supply with the fluid of high pressure to the first bottom outlet 211, from the wall of the first bottom outlet 211, applying hydraulic pressure stimulates (hydraulic stimulation; Hydraulic fracturing) form first and manually store layer 212.In order to maintain the crackle state of generation, in fluid, can comprise proppant (proppant).
First manually stores layer 212 formation when complete, packer 227 is set on certain position, and to the second bottom outlet 221, supplies with the fluid of high pressure, and applying hydraulic pressure stimulates to form second and manually store layer 222(Fig. 3 e).This second manually stores layer 222 can select to improve with first and manually store layer the 212 and the described later the 3rd and manually store the connectivity of layer 226 length or the orientation of the heat exchange area that maximizes.
Second manually stores layer 222 formation when complete, packer 228 is set on certain position, and to the 3rd bottom outlet 225, supplies with the fluid of high pressure, and applying hydraulic pressure stimulates to form the 3rd and manually store layer 226(Fig. 3 f).
By as above one process, while completing deep shaft system, can follow-uply carry out the building of ground installation and connect operation.
Fig. 4 means the concept map of another routine deep shaft system 300 of being correlated with according to the present invention.
The deep shaft system of this example is formed with on the first bottom outlet 311 and the second bottom outlet 315, the second deep-wells 320 and is formed with the 3rd bottom outlet 321 and the 4th bottom outlet 325 on the first deep-well 310.This first deep-well 310 and the second deep-well 320, be respectively the well boring from ground, and be branched by the bottom outlet of bottom.The first bottom outlet 311 of the first deep-well 310 and the second bottom outlet 315, stagger and be configured in the 3rd bottom outlet 321 and the 4th bottom outlet 325 of the second deep-well 320, and by hydraulic pressure stimulate form separately manually store layer 312,316,322,326.
This 4th bottom outlet can be various configurations.If, the 3rd bottom outlet 321 is in the plane of the first bottom outlet 311 and the second bottom outlet 315 formations, while being disposed between the first bottom outlet 311 and the second bottom outlet 315, the 4th bottom outlet 325 is in the plane of the first bottom outlet 311 and the second bottom outlet 315 formations, configurable in the outside of the first bottom outlet 311 or the second bottom outlet 315.
Therefore, can reduce the additional drillng operation of deep-well, can also make the bottom outlet configuration of staggering, can form thus high efficiency and productive enhancement mode geothermal system (EGS).In addition, to have more than be to mean digital increase in this increase of bottom outlet.; implementing when generating the fracturing that manually stores layer; according to the structure of the inhomogeneity of soil, fracture network (fracture network) etc., can cause manually storing the difference of the state of development of layer, it can not have putting on record of the shortcoming of clear and definite confirmation method for overcoming.Specifically, although calculate as the microseism event (microseismic event) of the sound being accompanied by when the fracturing generation man-made fracture by apparatus measures, although it is clear and definite that this mode as indirect cannot be regarded as, but because there is no to confirm other ways of state of development, be therefore utilized.Therefore, cannot judge exactly the flow behavior that manually stores the water injecting in layer, and because cannot judge exactly flow behavior (infiltration coefficient etc.), cannot calculate clearly capacity and the pressure of determining the required suitable pump of injection, can only inject to confirm flow behavior by reality.Therefore, though according to the injection pressure of general 10bar, have 30 liters/second flow behavior estimate to arrange pump, also cannot confirm according to the flow behavior under practically the efficiency of actual pump.Herein, Injection Well is branched into Liang Gebingxiang both sides to be generated while manually storing layer, one side can form better flow behavior (generally with respect to opposite side, two flow behaviors are not the same), can reduce thus the expense occurring when the top pump causing because of underground uncertainty designs and rise.If, bottom outlet forms respectively one, and while being total up to two, can design respectively the pump of putting into each Injection Well, and these are for independently situation is more, now, the probability of the different design of each pump is very high, contrary with it, while utilizing an Injection Well, top only need to arrange a pump, and the water of injection can flow to the better side of flow behavior, therefore can relatively improve the utilization rate of the pump causing because of uncertainty.
The application of the formation of the deep-well for enhancement mode geothermal system (EGS) describing as mentioned above,, connection structure and boring method thereof is not limited to formation and the method for illustrated embodiment.Described embodiment, its formation can realize various deformation by all or part of optionally combination of each embodiment.
Claims (8)
1. for a deep shaft system for enhancement mode geothermal system, comprising:
The first deep-well, forms and has the first bottom outlet;
The second deep-well, with the drilling well of being separated by of described the first deep-well, has the second bottom outlet and the 3rd bottom outlet, and makes described the first bottom outlet between described second and third bottom outlet;
First manually stores layer, by hydraulic pressure, is stimulated at described the first bottom outlet and is formed;
Second manually stores layer, by hydraulic pressure, is stimulated at described the second bottom outlet and is formed; And
The 3rd manually stores layer, by hydraulic pressure, stimulate at described the 3rd bottom outlet and form, and with described first manually store layer and described second manually store layer interconnect.
2. the deep shaft system for enhancement mode geothermal system according to claim 1, is characterized in that,
Described the first bottom outlet to described the 3rd bottom outlet extends along level or incline direction.
3. the deep shaft system for enhancement mode geothermal system according to claim 1, also comprises:
The 4th bottom outlet, along direction or the distance different with described the first bottom outlet, extends and forms from described the first deep-well, and is stimulated with at least one in described the second bottom outlet or described the 3rd bottom outlet and be connected by hydraulic pressure.
4. the deep shaft system for enhancement mode geothermal system according to claim 3, also comprises:
The 4th manually stores layer, is formed at described the 4th bottom outlet, by hydraulic pressure stimulate with described second manually store layer or the described the 3rd manually store layer be connected.
5. the deep shaft system for enhancement mode geothermal system according to claim 3, is characterized in that,
Described the first bottom outlet is disposed at, between described the second bottom outlet and described the 3rd bottom outlet in the plane that described the second bottom outlet and described the 3rd bottom outlet form;
Described the 4th bottom outlet is disposed at, in the plane that described the second bottom outlet and described the 3rd bottom outlet form, and the outside of described the second bottom outlet or described the 3rd bottom outlet.
6. for a boring method for the deep-well of enhancement mode geothermal system, comprising:
Formation has the step of the first deep-well of the first bottom outlet;
Formation comprises the second bottom outlet and has the 3rd bottom outlet of different direction with described the second bottom outlet, and makes the step of second deep-well of the first bottom outlet between described the second bottom outlet and described the 3rd bottom outlet;
To described the first bottom outlet, apply hydraulic pressure and stimulate to form the first step that manually stores layer; And
To described the second bottom outlet and described the 3rd bottom outlet, applying hydraulic pressure respectively stimulates to form respectively with described first and manually stores layer interconnective second and manually store layer and the 3rd and manually store a layer step.
7. the boring method of the deep-well for enhancement mode geothermal system according to claim 6, also comprises:
Along direction or the distance different with described the first bottom outlet, from described the first deep-well, extend and form, by hydraulic pressure, stimulate the step with at least one the 4th bottom outlet being connected in described the second bottom outlet or described the 3rd bottom outlet.
8. the boring method of the deep-well for enhancement mode geothermal system according to claim 7, is characterized in that,
Described the first bottom outlet is disposed at, between described the second bottom outlet and described the 3rd bottom outlet in the plane that described the second bottom outlet and described the 3rd bottom outlet form;
Described the 4th bottom outlet is disposed at, in the plane that the first bottom outlet and described the second bottom outlet form, and the outside of described the second bottom outlet or described the 3rd bottom outlet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020120071309A KR101237723B1 (en) | 2012-06-29 | 2012-06-29 | Drilling and connection system of wellbore for enhanced geothermal system and drilling method thereof |
| KR10-2012-0071309 | 2012-06-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103512254A true CN103512254A (en) | 2014-01-15 |
| CN103512254B CN103512254B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210381400.2A Expired - Fee Related CN103512254B (en) | 2012-06-29 | 2012-10-10 | For deep shaft system and the boring method thereof of enhancement mode geothermal system |
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| KR (1) | KR101237723B1 (en) |
| CN (1) | CN103512254B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695926A (en) * | 2014-12-30 | 2015-06-10 | 王作韬 | Low temperature geothermal energy production technique method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101344768B1 (en) | 2013-09-17 | 2013-12-24 | (주)넥스지오 | Device and method for analyzing change time/position of geothermal well drilling tool |
| WO2015187919A1 (en) * | 2014-06-04 | 2015-12-10 | The Johns Hopkins University | Method for a radiator egs to harvest geothermal energy |
| KR101994144B1 (en) | 2017-10-18 | 2019-07-01 | 전주대학교 산학협력단 | Enhanced geothermy cold and hot geothermy punching and cascade heatpump system for making both cold water and steam using the enhanced geothermy cold and hot geothermy punching |
| KR102019223B1 (en) | 2017-12-29 | 2019-09-06 | 윤태일 | Cascade heatpump system for making both cold water and steam comprising small high level compressor and enhanced geothermy cold and hot geothermy punching |
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|---|---|---|---|---|
| WO1994021889A2 (en) * | 1993-03-17 | 1994-09-29 | John North | Improvements in or relating to drilling and to the extraction of fluids |
| US6668554B1 (en) * | 1999-09-10 | 2003-12-30 | The Regents Of The University Of California | Geothermal energy production with supercritical fluids |
| WO2006027770A2 (en) * | 2004-08-04 | 2006-03-16 | Ormat Technologies Inc. | Using geothermal energy for the production of power |
| CN101027480A (en) * | 2004-06-23 | 2007-08-29 | 特拉瓦特控股公司 | Method of developing and producing deep geothermal reservoirs |
| KR20100061641A (en) * | 2010-05-19 | 2010-06-08 | 이시우 | System and method of creating egs having zonal injection wells |
| US20110061382A1 (en) * | 2009-09-17 | 2011-03-17 | Stern Richard H | System and Method for Extracting Geothermal Energy From a Potentially Seismically Active Stratum, With Reduced Accompanying Seismic Disturbances |
-
2012
- 2012-06-29 KR KR1020120071309A patent/KR101237723B1/en active IP Right Grant
- 2012-10-10 CN CN201210381400.2A patent/CN103512254B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994021889A2 (en) * | 1993-03-17 | 1994-09-29 | John North | Improvements in or relating to drilling and to the extraction of fluids |
| US6668554B1 (en) * | 1999-09-10 | 2003-12-30 | The Regents Of The University Of California | Geothermal energy production with supercritical fluids |
| CN101027480A (en) * | 2004-06-23 | 2007-08-29 | 特拉瓦特控股公司 | Method of developing and producing deep geothermal reservoirs |
| WO2006027770A2 (en) * | 2004-08-04 | 2006-03-16 | Ormat Technologies Inc. | Using geothermal energy for the production of power |
| US20110061382A1 (en) * | 2009-09-17 | 2011-03-17 | Stern Richard H | System and Method for Extracting Geothermal Energy From a Potentially Seismically Active Stratum, With Reduced Accompanying Seismic Disturbances |
| KR20100061641A (en) * | 2010-05-19 | 2010-06-08 | 이시우 | System and method of creating egs having zonal injection wells |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695926A (en) * | 2014-12-30 | 2015-06-10 | 王作韬 | Low temperature geothermal energy production technique method |
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| Publication number | Publication date |
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| KR101237723B1 (en) | 2013-02-26 |
| CN103512254B (en) | 2016-02-03 |
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