CN103512254B - For deep shaft system and the boring method thereof of enhancement mode geothermal system - Google Patents
For deep shaft system and the boring method thereof of enhancement mode geothermal system Download PDFInfo
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- CN103512254B CN103512254B CN201210381400.2A CN201210381400A CN103512254B CN 103512254 B CN103512254 B CN 103512254B CN 201210381400 A CN201210381400 A CN 201210381400A CN 103512254 B CN103512254 B CN 103512254B
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- 238000000034 method Methods 0.000 title claims description 18
- 238000005553 drilling Methods 0.000 claims abstract description 19
- 230000000638 stimulation Effects 0.000 claims abstract description 7
- 230000004936 stimulating effect Effects 0.000 claims 1
- 230000002596 correlated effect Effects 0.000 abstract description 15
- 238000002347 injection Methods 0.000 description 25
- 239000007924 injection Substances 0.000 description 25
- 230000015572 biosynthetic process Effects 0.000 description 9
- 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
- 238000005086 pumping Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000009412 basement excavation Methods 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
Classifications
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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
Abstract
The deep shaft system for enhancement mode geothermal system (EGS) that the present invention is correlated with, comprising: the first deep-well, is formed as having the first bottom outlet; Second deep-well, to be separated by drilling well with described first deep-well, to have the second bottom outlet and the 3rd bottom outlet, and make the first bottom outlet between second and third bottom outlet described; First manually stores layer, stimulate (hydraulic by hydraulic pressure? stimulation, hydraulic? fracturing) formed at described first bottom outlet; Second manually stores layer, is stimulated formed at described second bottom outlet by hydraulic pressure; And the 3rd manually stores layer, stimulated by hydraulic pressure and formed at described 3rd bottom outlet, and manually store layer and described second and manually store layer with described first and formed with being interconnected.
Description
Technical field
The present invention relates to the deep shaft system for enhancement mode geothermal system (EGS) and the boring method thereof that improve underground heat productivity with low cost.
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 overall energy-output ratio or thousands of times, therefore, and enhancement mode geothermal system (EnhancedGeothermalSystem; EGS) get most of the attention as the minimizing discharge of carbon dioxide and the new renewable sources of energy of sustainable supply.
Enhancement mode geothermal system is the improvement high heat rock mass (HotDryRock; HDR) as the technology of object, enough but because when the underground heat not having fluid or permeability lowly and not to have the required flow of generating stores layer, by manually improving permeability, thus produce the technology of the system that can generate electricity in temperature.Usually, EGS is after excavation underground deep, utilization is suppressed and is performed hydraulic pressure and stimulate after (Hydraulicstimulation) generate permeable formation, and the high-temperature geothermal water being carried out heat exchange by this artificial permeable formation is extracted into producing well and is used in generating.
Formation in order to EGS needs to pass through, the selected plot that can reach the thermal source being sufficient to generating; Geothermal power generation Injection Well (injectionwell) and the producing well (productionwell) of drilling well high depth; The process generating and manually store layer (stimulatedreservoir) is stimulated by hydraulic pressure.
Although underground heat output can along with overall volume or the crack length manually storing 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.
When dual (duplet) formula of an Injection Well and a producing well is set (with reference to Fig. 1), the bottom outlet of bottom outlet (downhole) 12a of Injection Well 12 and producing well 13 can according to manually storing layer 14 and being interconnected, and form closed circulation by the pump 16 on ground and electricity generation system 15.The example of multiple deep-well being set as increasing generate output, when triple (triplet) formula, being supply feedwater by an Injection Well, and being taken in the mode of the GEOTHERMAL WATER of row heat exchange by two producing wells of independent drilling well back and forth.But, because need to bore three wells from ground, therefore there is the problem that the whole cost for boring deep-well and hydraulic pressure stimulation increases severely.
Summary of the invention
(technical problem that will solve)
The present invention makes in view of the above problems, its object is to the deep shaft system and the boring method thereof that are provided for 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, is formed as having the first bottom outlet; Second deep-well, to be separated by drilling well with described first deep-well, to have the second bottom outlet and the 3rd bottom outlet, and make the first bottom outlet between second and third bottom outlet described; First manually stores layer, stimulates (hydraulicstimulation, hydraulicfracturing) to be formed at described first bottom outlet by hydraulic pressure; Second manually stores layer, is stimulated formed at described second bottom outlet by hydraulic pressure; And the 3rd manually stores layer, stimulated by hydraulic pressure and formed at described 3rd bottom outlet, and manually store layer and described second and manually store layer with described first and formed with being interconnected.
As the example that the present invention is correlated with, described first bottom outlet to described 3rd bottom outlet can extend along level or incline direction.
As the example that the present invention is correlated with, for the deep shaft system of enhancement mode geothermal system (EGS), can also comprise: the 4th bottom outlet, along the direction different with described first bottom outlet or distance, extend from described first deep-well and formed, and can be connected with at least one in described second bottom outlet or described 3rd bottom outlet by hydraulic pressure stimulation.
As the example that the present invention is correlated with, for the deep shaft system of enhancement mode geothermal system (EGS), can also comprise: the 4th manually stores layer, be formed at described 4th bottom outlet, stimulate by hydraulic pressure manually can store layer or the described 3rd and manually store layer and be connected with described second.
As the example that the present invention is correlated with, described first bottom outlet is configured at, described second bottom outlet in the plane that described second bottom outlet and described 3rd bottom outlet are formed and between described 3rd bottom outlet; Described 4th bottom outlet can be configured at, in the plane that described second bottom outlet and described 3rd bottom outlet are formed, and the outside of described second bottom outlet or described 3rd bottom outlet.
In addition, the open boring method for the deep-well of enhancement mode geothermal system (EGS) of the present invention, comprising: form the step with the first deep-well of the first bottom outlet; Formed to have and comprise the second bottom outlet and with described second bottom outlet, there is the 3rd bottom outlet in different direction, and make the step of second deep-well of the first bottom outlet between described second bottom outlet and described 3rd bottom outlet; Applying hydraulic pressure to described first bottom outlet stimulates (hydraulicstimulation) to form the step that first manually stores layer; And apply hydraulic pressure respectively to described second bottom outlet and described 3rd bottom outlet and stimulate to be formed respectively and manually to store layer interconnective second with described first and manually store layer and the 3rd and manually store a layer step.
As the example that the present invention is correlated with, for the boring method of the deep-well of enhancement mode geothermal system (EGS), also comprise: along the direction different with described first bottom outlet or distance, extend from described first deep-well and formed and can stimulate the step with at least one the 4th bottom outlet be connected described second bottom outlet or described 3rd bottom outlet by hydraulic pressure.
Now, described first bottom outlet is configured at, described second bottom outlet in the plane that described second bottom outlet and described 3rd bottom outlet are formed and between described 3rd bottom outlet; Described 4th bottom outlet can be configured at, in the plane that the first bottom outlet and described second bottom outlet are formed, and the outside of described second bottom outlet or described 3rd bottom outlet.
(effect of invention)
As mentioned above, the deep shaft system for enhancement mode geothermal system (EGS) of being correlated with according to the present invention and boring method thereof, because be defaulted as brill Injection Well and a producing well, effectively can reduce the increase of the whole cost caused because of additional wells thus, and in underground heat productivity, because form each manually store layer, there is effect thus that can guarantee the geothermal energy be equal to triple (triplet) mode possessing three deep-wells.
Accompanying drawing explanation
Fig. 1 is the concept map of the enhancement mode geothermal system representing the deep drilling structure with double-type.
Fig. 2 is the concept map representing the enhancement mode geothermal system (EGS) with the deep shaft system 100 that the present invention is correlated with.
Fig. 3 is the drilling well of deep-well for enhancement mode geothermal system (EGS) and the concept map of method of attachment that represent that the present invention is correlated with successively.
Fig. 4 is the concept map of the deep shaft system 300 representing another example of being correlated with according to the present invention.
(description of reference numerals)
100,300: for the deep shaft system of enhancement mode geothermal system
110: Injection Well 111: the first bottom outlet
Manually store layer 120 at 112: the first: producing well
121: the second bottom outlets 122: the second manually store layer
125: the three bottom outlets 126: the three manually store layer
130: pumping system 140: power plant
210,310: the first deep-well 220,320: the second deep-wells
Detailed description of the invention
With reference to the accompanying drawings the formation of the deep-well for enhancement mode geothermal system (EGS) that the present invention is correlated with, connecting structure and boring method thereof are described in detail.
Fig. 2 is the concept map representing the enhancement mode geothermal system (EGS) with the deep shaft system 100 that the present invention is correlated with.
Deep shaft system 100 disclosed in this example, according to from ground to the Injection Well 110 of underground deep drilling well and producing well 120, is arranged at ground pumping system 130 and power plant 140 and forms closed circulation.Injection Well 110 and producing well 120, drilling well is carried out to the underground deep existed as the High temperature rocks place of thermal source respectively from the ground of appointed place, by the water that Injection Well 110 supplies, carry out heat exchange in layer manually storing of underground deep and after being heated, draw back to pumping system 130.
To have a bottom outlet contrary with Injection Well 110, and producing well 120 has and extends multiple bottom outlet along mutually different direction.As shown in Figure 2, Injection Well 110 comprises, and at the first bottom outlet 111 that the certain position of underground deep extends, producing well 120 comprises, at the certain position of underground deep the second bottom outlet 121 extended and the 3rd bottom outlet 125 extended in the second place of underground deep.This second bottom outlet 121 and the 3rd bottom outlet 125 in the different degree of depth, can extend along level or incline direction, or in the similar degree of depth, can extend along level or incline direction.The extending direction of the second bottom outlet 121 and the 3rd bottom outlet 125 or length can be different according to the stress state of rock or underground environment, are not limited to illustrated direction or the degree of depth.
From the second bottom outlet 121 that producing well 120 extends, be formed through hydraulic pressure stimulation second manually stores layer 122, and on the 3rd bottom outlet 125, the be also formed through hydraulic pressure stimulation the 3rd manually stores layer 126.This second manually stores layer 122 and the 3rd manually stores the direction of layer 126 and mutual distance, the position and the directional correlation that manually store layer 112 with the first bottom outlet 111 of Injection Well 110 is formed first.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 by hydraulic pressure and is formed as, and manually can store layer 122 and the 3rd and manually stores the interconnective degree of layer 126 with second.In position, when the first bottom outlet 111 of Injection Well 110 is formed along the direction that the second bottom outlet 121 and the 3rd bottom outlet 125 with producing well 120 is different, formed along the direction 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 to the intermediate distance between the second bottom outlet 121 and the 3rd bottom outlet 125 and is formed.
Manually store that layer 112 is connected with first second manually stores layer 122 and the 3rd manually stores layer 126, forms network by Injection Well 110 and producing well 120.Be supplied to Injection Well 110 water, manually store layer 112 from first and flow out, and manually store layer 122 and the 3rd by second and manually store layer 126, reclaim from producing well 120.Water manually stores during layer 122 to the first manually stores layer 112 through second, can carry out heat exchange to heat with the High temperature rocks of surrounding, thus obtain the heat energy needed for generating.
Deep shaft system as above, because be defaulted as brill Injection Well 110 and a producing well 120, effectively can reduce the increase of whole cost thus, and in underground heat productivity, also can guarantee the effect of the geothermal energy be equal to triple (triplet) mode possessing 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 represent that the present invention is correlated with successively.
In order to form deep shaft system, (Fig. 3 a) first to bore the first deep-well 210 in selected appointed place to the underground deep having High temperature rocks.Can comprise in the drillng operation of the first deep-well 210: ground or definitely under the degree of depth in the directive directed drilling of tool (directionaldrilling), tubulature (tubing) etc.Afterwards, boring can towards the first bottom outlet 211 of the first deep-well 210 of the High temperature rocks of thermal source.First bottom outlet 211 can 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, perform the drillng operation of the second deep-well 220.Second deep-well 220 can with the drillng operation of the first deep-well 210 simultaneously or formed (Fig. 3 b) after the drilling well of the first deep-well 210.First, in the certain position of the second deep-well 220, bore second bottom outlet 221 first bottom outlet 211 to certain distance.
When the drilling well of the second bottom outlet 221 is complete, with the relation of the second bottom outlet 211, bore the 3rd bottom outlet 225 and make the first bottom outlet 211 be positioned at centre (Fig. 3 c).The drillng operation of the second bottom outlet 221 and the 3rd bottom outlet 225 also can comprise, and makes the first bottom outlet 211 carry out directed drilling (drilling) between the second bottom outlet 221 and the 3rd bottom outlet 225.
When first bottom outlet 211 is complete to the drilling well of the 3rd bottom outlet 225, certain position is arranged and is used for the packer (packer) 217 (Fig. 3 d) that fracturing (hydraulicfracturing) or hydraulic pressure stimulate (hydraulicstimulation).During the installing of packer 217, supply the fluid of high pressure to the first bottom outlet 211, applying hydraulic pressure from the wall of the first bottom outlet 211 stimulates (hydraulicstimulation; Hydraulicfracturing) form first and manually store layer 212.In order to maintain the crackle state of generation, proppant (proppant) in fluid, can be comprised.
First manually store the formation of layer 212 complete time, certain position arranges packer 227, and supplies the fluid of high pressure to the second bottom outlet 221, applying hydraulic pressure stimulates and forms second and manually store layer 222 (Fig. 3 e).This second manually stores layer 222 can select to improve and manually store layer 212 and the described later 3rd manually store the connectivity of layer 226 and the length of the heat exchange area that maximizes or orientation with first.
Second manually store the formation of layer 222 complete time, certain position arranges packer 228, and supplies the fluid of high pressure to the 3rd bottom outlet 225, applying hydraulic pressure stimulates and forms the 3rd and manually store layer 226 (Fig. 3 f).
By the process of as above, when completing deep shaft system, follow-uply can carry out the building of ground installation and connect operation.
Fig. 4 is the concept map of the deep shaft system 300 representing another example of being correlated with according to the present invention.
The deep shaft system of this example, the first deep-well 310 is formed on the first bottom outlet 311 and the second bottom outlet 315, second deep-well 320 and is formed with the 3rd bottom outlet 321 and the 4th bottom outlet 325.This first deep-well 310 and the second deep-well 320, is respectively the well bored from ground, and is branched by the bottom outlet of bottom.First bottom outlet 311 and the second bottom outlet 315 of the first deep-well 310, staggers in the 3rd bottom outlet 321 of the second deep-well 320 and the 4th bottom outlet 325 and is configured, and stimulates to be formed by hydraulic pressure and respective manually store layer 312,316,322,326.
This 4th bottom outlet can be various configurations.If, in the plane that 3rd bottom outlet 321 is formed at the first bottom outlet 311 and the second bottom outlet 315, when being configured between the first bottom outlet 311 and the second bottom outlet 315, in the plane that 4th bottom outlet 325 is formed at the first bottom outlet 311 and the second bottom outlet 315, configurable in the outside of the first bottom outlet 311 or the second bottom outlet 315.
Therefore, the additional wells operation of deep-well can be reduced, bottom outlet can also be made to be in staggered configuration, high efficiency and productive enhancement mode geothermal system (EGS) can be formed thus.In addition, this increase of bottom outlet has more than is the increase meaning numeral.Namely, when implementing to generate the fracturing manually storing layer, according to the inhomogeneity of soil, the structure etc. of fracture network (fracturenetwork), can cause the difference of the state of development manually storing layer, it may be used for overcoming does not have putting on record of the shortcoming of clear and definite confirmation method.Specifically, although by apparatus measures as when fracturing generation man-made fracture along with the micro-seismic event (microseismicevent) of sound calculate, although this mode as indirect cannot regard clear and definite as, but because there is no other ways that can confirm state of development, be therefore utilized.Therefore, the flow behavior manually storing the water injected in layer cannot be judged exactly, and because flow behavior (infiltration coefficient etc.) cannot be judged exactly, capacity and the pressure of the suitable pump determined needed for injection cannot be calculated clearly, can only be injected by reality and confirm flow behavior.Therefore, even if the estimating of flow behavior according to the injection pressure of general 10bar with 30 liters/second arranges pump, the efficiency of actual pump also cannot be confirmed according to the flow behavior under practically.Herein, Injection Well branched into two and generate to both sides when manually to store layer, side can form better flow behavior (generally relative to opposite side, two flow behaviors are not the same), the expense occurred when can reduce the top pump design that the uncertainty because of underground causes thus rises.If, bottom outlet forms one respectively, and when being total up to two, can design the pump putting into each Injection Well respectively, and these are that independently situation is more, now, the probability of the different design of each pump is very high, contrary with it, when utilizing an Injection Well, top only needs to arrange a pump, and the water of injection can flow to the better side of flow behavior, therefore relatively can improve the utilization rate of the pump caused because of uncertainty.
As mentioned above, the application of the formation of the deep-well for enhancement mode geothermal system (EGS) be described, connecting 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:
First deep-well, is formed as having the first bottom outlet;
Second deep-well, to be separated by drilling well with described first deep-well, to have the second bottom outlet and the 3rd bottom outlet, and make described first bottom outlet between second and third bottom outlet described;
First manually stores layer, is stimulated formed at described first bottom outlet by hydraulic pressure;
Second manually stores layer, is stimulated formed at described second bottom outlet by hydraulic pressure; And
3rd manually stores layer, is stimulated formed at described 3rd bottom outlet by hydraulic pressure, and manually stores layer and described second and manually store layer with described first and be interconnected.
2. the deep shaft system for enhancement mode geothermal system according to claim 1, is characterized in that,
Described first bottom outlet to described 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:
4th bottom outlet, along the direction different with described first bottom outlet or distance, is extended from described second deep-well and is formed, and being connected with at least one in described second bottom outlet or described 3rd bottom outlet by hydraulic pressure stimulation.
4. the deep shaft system for enhancement mode geothermal system according to claim 3, also comprises:
4th manually stores layer, is formed at described 4th bottom outlet, is stimulated and described second manually store layer or the described 3rd and manually store layer and be connected by hydraulic pressure.
5. the deep shaft system for enhancement mode geothermal system according to claim 3, is characterized in that,
Described first bottom outlet is configured at, described second bottom outlet in the plane that described second bottom outlet and described 3rd bottom outlet are formed and between described 3rd bottom outlet;
Described 4th bottom outlet is configured at, in the plane that described second bottom outlet and described 3rd bottom outlet are formed, and the outside of described second bottom outlet or described 3rd bottom outlet.
6., for a boring method for the deep-well of enhancement mode geothermal system, comprising:
Form the step with the first deep-well of the first bottom outlet;
Formed and comprise the second bottom outlet and with described second bottom outlet, there is the 3rd bottom outlet in different direction, and make the step of second deep-well of the first bottom outlet between described second bottom outlet and described 3rd bottom outlet;
Apply hydraulic pressure stimulation to described first bottom outlet and form the step that first manually stores layer; And
Apply hydraulic pressure respectively to described second bottom outlet and described 3rd bottom outlet to stimulate to be formed respectively and manually to store layer interconnective second with described first 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 the direction different with described first bottom outlet or distance, extend from described second deep-well and formed, stimulating the step with at least one the 4th bottom outlet be connected in described second bottom outlet or described 3rd bottom outlet by hydraulic pressure.
8. the boring method of the deep-well for enhancement mode geothermal system according to claim 7, is characterized in that,
Described first bottom outlet is configured at, described second bottom outlet in the plane that described second bottom outlet and described 3rd bottom outlet are formed and between described 3rd bottom outlet;
Described 4th bottom outlet is configured at, in the plane that the first bottom outlet and described second bottom outlet are formed, and the outside of described second bottom outlet or described 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 CN103512254A (en) | 2014-01-15 |
| CN103512254B true CN103512254B (en) | 2016-02-03 |
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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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| Country | Link |
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| KR (1) | KR101237723B1 (en) |
| CN (1) | CN103512254B (en) |
Families Citing this family (5)
| 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 |
| US11125471B2 (en) | 2014-06-04 | 2021-09-21 | The Johns Hopkins University | Method for a radiator EGS to harvest geothermal energy |
| CN104695926A (en) * | 2014-12-30 | 2015-06-10 | 王作韬 | Low temperature geothermal energy production technique method |
| 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 |
Citations (4)
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| KR101190326B1 (en) * | 2010-05-19 | 2012-10-11 | 이시우 | System and method of creating EGS having zonal injection wells |
-
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 (4)
| 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 |
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| CN103512254A (en) | 2014-01-15 |
| KR101237723B1 (en) | 2013-02-26 |
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