CN109839286B - Dry-hot rock enhanced geothermal system development simulation experiment device and experiment method thereof - Google Patents
Dry-hot rock enhanced geothermal system development simulation experiment device and experiment method thereof Download PDFInfo
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- CN109839286B CN109839286B CN201910256570.XA CN201910256570A CN109839286B CN 109839286 B CN109839286 B CN 109839286B CN 201910256570 A CN201910256570 A CN 201910256570A CN 109839286 B CN109839286 B CN 109839286B
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- 239000011435 rock Substances 0.000 title claims abstract description 114
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- 230000033772 system development Effects 0.000 title claims description 3
- 238000000034 method Methods 0.000 title abstract description 14
- 238000005485 electric heating Methods 0.000 claims abstract description 32
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000012806 monitoring device Methods 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 98
- 239000010959 steel Substances 0.000 claims description 98
- 239000012530 fluid Substances 0.000 claims description 29
- 239000004568 cement Substances 0.000 claims description 27
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
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- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims 1
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- 230000018109 developmental process Effects 0.000 description 17
- 238000011835 investigation Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- 230000002159 abnormal effect Effects 0.000 description 1
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- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
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- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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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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Abstract
The invention provides a simulation experiment device for development of a dry-hot rock enhanced geothermal system and an experiment method thereof, wherein the simulation experiment device comprises a heating system, a sealing and heat-preserving system, a filling and production circulating system, a monitoring device and a dry-hot rock mass, the heating system comprises a constant temperature box and an electric heating mechanism, the constant temperature box is a square box body with a first groove at the upper part, an electric heating mechanism is arranged at the inner bottom of the constant temperature box, and the electric heating mechanism is used for keeping constant temperature in the constant temperature box body; the invention provides a simulation experiment device for the development of a dry-hot rock enhanced geothermal system and an experiment method thereof, which enable the device of the development process of the dry-hot rock geothermal simulation system to be simpler and more convenient, and to be closer to reality, thereby exploring a development rule which is more scientific and accurate and has wide applicability.
Description
Technical Field
The invention relates to the technical field of geothermal development of hot dry rock, in particular to a simulation experiment device for the development of a geothermal system of hot dry rock and an experiment method thereof.
Background
With the increasing difficulty of petroleum exploration and development, the development and utilization of renewable energy sources are increasingly emphasized. Compared with other renewable energy sources, the dry-hot rock resource has the advantages of large resource quantity, highest utilization coefficient and lowest carbon dioxide emission in the life cycle. The dry-hot rock development process basically does not influence the natural ecological environment, the dry-hot rock power generation technology can greatly reduce the influence of greenhouse effect and acid rain on the environment, is not limited by seasons and climates, can effectively replace the consumption of coal and petrochemical energy sources, and effectively protects the ecological environment.
Although domestic investigation and development of dry rock have achieved staged results in local areas and have wide development and utilization prospects, many problems still exist. Problems in terms of speed: the investigation and development of the dry hot rock in China are too fast, the ground temperature field characteristics and the construction background conditions of the national and specific geothermal abnormal areas are not deeply known, and meanwhile, the understanding of the causative mode of the dry hot rock resources is not enough; problems in the standard: the dry-hot rock investigation in China lacks relevant standards and specifications, and a plurality of technical problems are difficult to break through in a short time. These problems seriously affect the scientific development of the dry hot rock resources in China.
In the actual development process of the dry-hot rock enhanced geothermal system, the hydraulic fracturing is mainly adopted to reform a reservoir, and geological conditions are different, so that the shape and the size of cracks in the stratum are difficult to control.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a simulation experiment device for the development of the geothermal system of the dry-hot rock and an experiment method thereof, so that the device for the development process of the geothermal simulation system of the dry-hot rock is simpler and more convenient, and is closer to reality, thereby exploring a development rule which is more scientific and accurate and has wide applicability.
In view of the above problems, the technical scheme provided by the invention is as follows: a simulation experiment device for the development of a dry-hot rock enhanced geothermal system comprises a heating system, a sealing and heat preserving system, an injection and production circulating system, a monitoring device and a dry-hot rock mass,
the heating system comprises an incubator and an electric heating mechanism, wherein the incubator is square, a first groove is formed in the upper part of the incubator, an electric heating mechanism is arranged in the incubator, and the electric heating mechanism is used for keeping the temperature in the incubator;
the sealing and heat insulation system comprises a square box body, a cement layer and a heat insulation layer, wherein a second groove is formed in the top of the square box body, the cement layer is glued to the inner wall surface of the square box body, the heat insulation layer covers the top of the square box body, and a cavity is formed by the heat insulation layer and the square box body and is used for placing dry-heat rock mass;
the injection and production circulating system is composed of a thin steel pipe group and a circulating pump connected with the thin steel pipe group, the thin steel pipe group comprises a first thin steel pipe, a second thin steel pipe and a fluid channel which is transversely arranged in the bottom of the dry hot rock mass and is respectively communicated with the first thin steel pipe and the second thin steel pipe at two ends, the first thin steel pipe and the second thin steel pipe longitudinally penetrate through the heat insulation layer and the cement layer in sequence and extend into the dry hot rock mass, the first thin steel pipe and the second thin steel pipe are parallel, the circulating pump is communicated with the second thin steel pipe through the second collecting pipe, and the circulating pump provides power for a circulating medium;
the monitoring device comprises a pressure gauge, a first collecting pipe communicated with the pressure gauge and used for measuring a pressure value, a second collecting pipe communicated with the circulating pump, and a first thermometer and a second thermometer;
the circulating pump provides a power source for a circulating medium, the pressure gauge is used for measuring the pressure value of a first thin steel pipe, the first thermometer and the second thermometer are both arranged outside the incubator, the first thermometer is communicated with a third collecting pipe and stretches into the dry hot rock mass, and the second thermometer is communicated with a fourth collecting pipe and stretches into the incubator.
In order to better realize the invention, further, the square box body takes iron, nickel and cobalt as metal base materials, and can resist high-temperature alloy with the temperature of more than 200 ℃.
In order to better realize the invention, the electric heating mechanism is one or more of an electric heating wire, an electric heating pipe and an electric heating plate.
In order to better realize the invention, further, the size of the dry hot rock mass is 15 x 30 cm, and the periphery of the dry hot rock mass is covered with the cement layer.
In order to better realize the invention, further, the diameter of a gap which is respectively communicated with the first thin steel pipe and the second thin steel pipe in the dry hot rock mass is 0.4-0.5 cm.
Further, the fluid passage has a diameter of 0.8 cm.
Further, the thickness of the cement layer is 1 cm.
Further, the square box body has a size of 31×32×17 cm.
Further, the second thin steel pipe is connected with the circulating pump through a threaded joint, and the first thin steel pipe, the crack formed by the dry hot rock mass and the second thin steel pipe form a fluid channel.
The invention also discloses a simulation experiment method for the development of the hot dry rock enhanced geothermal system, which comprises the following steps:
s1: collecting rock mass at the actual depth according to the in-situ geological condition;
s2: cutting a rock mass to be cut into dry hot rock mass with the size of 15 x 30 cm by a rock cutting machine;
s3: cutting the dry hot rock mass, and cutting a gap for vertically placing the first thin steel pipe and the second thin steel pipe by using a professional tool;
s4: cutting a fluid channel simulating hydraulic fracturing on a dry hot rock mass by using a professional tool;
s5: inserting the first thin steel pipe and the second thin steel pipe into the rock mass gap cut in the step 3, bonding the dry hot rock mass, the first thin steel pipe and the second thin steel pipe together through glue, pouring cement on the outer wall of the dry hot rock mass, enabling the dry hot rock mass to be wrapped by the cement, and placing the dry hot rock mass into a square box body after the cement is dried;
s6: putting the whole into a constant temperature box, starting an electric heating mechanism, covering an insulating layer, and fully heating;
s7: and (3) filling the circulating medium from the second thin steel pipe, starting a circulating pump at the moment, and discharging the circulating medium from the second thin steel pipe, the first thin steel pipe through the fluid channel.
Compared with the prior art, the invention has the beneficial effects that:
according to the device, the dry hot rock mass is cut through the actually controllable tool, the first thin steel pipe and the second thin steel pipe are inserted into the dry hot rock mass to form a fluid channel with cracks in the rock mass, the obstacle that hydraulic fracturing cannot be adopted or is difficult to be adopted in an actual simulation device is skillfully avoided through simulating the cracks caused by hydraulic fracturing, meanwhile, the temperature and pressure measuring devices are further arranged, the temperature and pressure values in the dry hot rock mass can be measured in real time respectively, meanwhile, the incubator and the electric heating mechanism can keep the environment temperature in the dry hot rock mass simulation, the inaccuracy of simulation experiment results due to the fact that the temperature is too low is avoided, and the more accurate experimental rule can be obtained according to different adjustment crack shapes of the geological conditions in the field.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
Drawings
FIG. 1 is a schematic cross-sectional view of a structure according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a crack 1 formed by two thin steel pipes and a fluid passage according to an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of two thin steel pipes and a fluid passage forming a crack 2 according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a crack 3 formed between two thin steel pipes and a fluid passage according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a simulation experiment method in the invention;
reference numerals: 101, a constant temperature box; 102 an electric heating mechanism; 201 square box body; 202 a cement layer; 203 an insulating layer; 301 simulating a well; 302 a circulation pump; 401 a first thermometer; 402 a second thermometer; 403 pressure gauge; 501 a first groove; 502 a second groove; 6, dry heating rock mass; 701 a first thin steel pipe; 702 a second thin steel tube; 8 fluid channels; 901 a primary collection tube; 902 secondary collection tube.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to the drawings, a simulation experiment device for the development of a geothermal system of the dry-hot rock comprises a heating system, a sealing and heat-preserving system, an injection and production circulating system, a monitoring device and a dry-hot rock mass 6,
the heating system comprises an incubator 101 and an electric heating mechanism 102, wherein the incubator 101 is square, a first groove 501 is formed in the upper part of the incubator 101, and the electric heating mechanism is arranged in the incubator 101 and used for keeping the temperature in the incubator 101;
the sealing and heat insulation system comprises a square box 201, a cement layer 202 and a heat insulation layer 203, wherein a second groove 502 is formed in the top of the square box 201, the cement layer 202 is glued to the inner wall surface of the square box 201, the heat insulation layer 203 covers the top of the square box 201, and the heat insulation layer 203 and the square box 201 form a cavity for placing the dry and hot rock mass 6;
the injection and production circulating system comprises a thin steel pipe group and a circulating pump 302 connected with the thin steel pipe group, wherein the thin steel pipe group comprises a first thin steel pipe 701, a second thin steel pipe 702 and a fluid channel 8 which is transversely arranged in the bottom of the dry hot rock mass 6 and is respectively communicated with the first thin steel pipe 701 and the second thin steel pipe 702 at two ends, the fluid channel 8 is in a strip shape, the left part and the right part of the fluid channel 8 are respectively communicated with the first thin steel pipe 701 and the second thin steel pipe 702, the first thin steel pipe 701 and the second thin steel pipe 702 longitudinally penetrate through the heat insulation layer 203 and the cement layer 202 in sequence and extend into the dry hot rock mass 6, the first thin steel pipe 701 and the second thin steel pipe 702 are parallel, the circulating pump 302 is communicated with the second thin steel pipe 702 through a second collecting pipe 902, and the circulating pump 302 provides power for circulating media;
monitoring means comprising a pressure gauge 403, a first collection tube 901 for measuring pressure values in communication with the pressure gauge 403, a second collection tube 902 in communication with the circulation pump 302, and a first temperature gauge 401 and a second temperature gauge 402;
the circulating pump 302 provides a power source for a circulating medium, the pressure gauge 403 is used for measuring the pressure value of a first thin steel pipe 701, the first temperature gauge 401 and the second temperature gauge 402 are both arranged outside the incubator 101, the first temperature gauge 401 is communicated with a third collecting pipe 903 and stretches into the dry hot rock mass 6, and the second temperature gauge 402 is communicated with a fourth collecting pipe and stretches into the incubator 101.
In fig. 2 and fig. 3, the fluid channel 8 is an upper strip-shaped channel and a lower strip-shaped channel, and two vertical channels and a transverse channel, the left and right parts of the fluid channel 8 are respectively communicated with the first thin steel pipe 701 and the second thin steel pipe 702, at this time, the circulating medium flows in the fluid channel 8, because the volume in the fluid channel in fig. 2 and fig. 3 is increased compared with that in fig. 1, the flowing time of the circulating medium in the fluid channel 2 is longer, the heat carrying time of the circulating medium is longer, and the accurate measurement of the dry-heat rock mass by the thermometer and the manometer is more facilitated.
In order to better realize the present invention, the square box 201 is further formed by integrally forming iron, nickel, cobalt as metal base materials and adopting metal base materials which can withstand high temperature, such as iron, nickel, cobalt, etc., and can withstand high temperature of 200 ℃ or higher.
In order to better implement the present invention, further, the electric heating mechanism 102 is one or more of an electric heating wire, an electric heating tube, and an electric heating plate. When the electric heating mechanism 102 is any one of the above, the heating wire is powered on, and the power source can be a common power source such as a 220V power interface, a storage battery, etc., and the power source will not be described in detail herein, and when the electric heating mechanism 102 is any one of the above, for example, the heating wire and the electric heating tube are connected in parallel, i.e. when any one of the heating members is electrically heated, the other heating members can simultaneously perform the electrically conductive heating process.
In order to better implement the present invention, further, the size of the dry hot rock mass 6 is 15×30×30 cm, the size of the dry hot rock mass 6 is a fixed value, at this time, the dry hot rock mass 6 is conveniently placed in the square box body manually, the periphery of the dry hot rock mass 6 is cemented by the cement layer 202, the cement layer 202 wraps the dry hot rock mass 6, and the thickness of the cement layer 202 is about 10 mm, so that the dry hot rock mass 6 can be conveniently protected when being fully heated.
In order to better realize the invention, further, the diameter of the gap which is respectively communicated with the first thin steel pipe 701 and the second thin steel pipe 702 in the dry-hot rock mass 6 is 0.4-0.5 cm.
In order to better implement the invention, the fluid channel 8 has a diameter of 0.8 cm.
In order to better implement the present invention, further, the cement layer 202 has a thickness of 1 cm.
In order to better implement the present invention, further, the square box 201 has a size of 31×32×17 cm.
In order to better realize the invention, further, the second thin steel pipe 702 is connected with the circulating pump 302 through a screw joint, the first thin steel pipe 701, the rock cracks formed by the dry hot rock mass 6, and the second thin steel pipe 702 form a fluid passage 8.
The invention also discloses a simulation experiment method for the development of the hot dry rock enhanced geothermal system, which comprises the following steps:
s1: collecting rock mass at the actual depth according to the in-situ geological condition;
s2: cutting the rock mass to be cut into dry hot rock mass 6 with the size of 15 x 30 cm by a rock cutting machine;
s3: cutting the dry hot rock mass 6, and cutting a rock mass gap for vertically placing the first thin steel pipe 701 and the second thin steel pipe 702 by using a special tool;
s4: cutting a fluid channel 8 simulating hydraulic fracturing on the dry hot rock mass 6 by using a professional tool;
s5: inserting the first thin steel pipe 701 and the second thin steel pipe 702 into the rock mass gap cut in the step 3, bonding the dry hot rock mass 6 with the first thin steel pipe 701 and the second thin steel pipe 702 in a gluing mode, pouring cement on the outer wall of the dry hot rock mass 6, enabling the dry hot rock mass 6 to be wrapped by the cement layer 202, and placing the dry hot rock mass 6 into the square box 201 after the cement is dried;
s6: the whole is placed in the incubator 101, the electric heating mechanism 102 is started, and the insulating layer 203 is covered, so that the whole is sufficiently heated.
S7: the circulation medium is poured from the second thin steel pipe 702, and at this time, the circulation pump 302 is started, and the circulation medium is discharged from the second thin steel pipe 702, through the fluid passage 8, and from the first thin steel pipe 701.
Working principle: the device cuts the dry-hot rock mass 6 by a tool capable of being actually controlled, the first thin steel pipe 701 and the second thin steel pipe 702 are inserted into the dry-hot rock mass 6 to form a fluid channel 8 with cracks in the rock mass, the first thin steel pipe 701, the second thin steel pipe 702 and the fluid channel 8 skillfully avoid the obstacle that hydraulic fracturing cannot or is difficult to actually adopt in an actual simulation device by simulating the cracks caused by hydraulic fracturing, the dry-hot rock mass 6 is firstly cut into two parts up and down, then the cracks are cut on a cutting surface by a special tool, and finally the two parts are bonded. The method comprises the steps of drilling holes with a certain inner diameter on a dry hot rock mass 6 until crack positions, respectively inserting a first thin steel pipe 701 and a second thin steel pipe 702 into a rock mass hole, adhering and fixing, simultaneously setting temperature and pressure measuring devices such as a first thermometer, a second thermometer and a pressure meter, respectively measuring the temperature and pressure values inside the dry hot rock mass in real time, simultaneously, keeping the environment temperature of the dry hot rock mass 6 during simulation by a constant temperature box 2 and an electric heating mechanism 102, and avoiding inaccurate simulation experiment results caused by too low temperature.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The utility model provides a dry hot rock enhancement mode geothermal system development simulation experiment device, includes heating system, sealed and heat preservation system, notes and adopts circulation system, monitoring devices and dry hot rock mass, its characterized in that:
the heating system comprises an incubator and an electric heating mechanism, wherein the incubator is square, a first groove is formed in the upper part of the incubator, the electric heating mechanism is arranged in the incubator, and the electric heating mechanism is used for keeping the temperature in the incubator;
the sealing and heat insulation system comprises a square box body, a cement layer and a heat insulation layer, wherein a second groove is formed in the top of the square box body, the cement layer is glued to the inner wall surface of the square box body, the heat insulation layer covers the top of the square box body, and a cavity is formed by the heat insulation layer and the square box body and is used for placing dry-heat rock mass;
the injection and production circulating system is composed of a thin steel pipe group and a circulating pump connected with the thin steel pipe group, the thin steel pipe group comprises a first thin steel pipe, a second thin steel pipe and a fluid channel which is transversely arranged in the bottom of the dry hot rock mass and is respectively communicated with the first thin steel pipe and the second thin steel pipe at two ends, the first thin steel pipe and the second thin steel pipe longitudinally penetrate through the heat insulation layer and the cement layer in sequence and extend into the dry hot rock mass, the first thin steel pipe and the second thin steel pipe are parallel, the circulating pump is communicated with the second thin steel pipe through the second collecting pipe, and the circulating pump provides power for a circulating medium;
the monitoring device comprises a pressure gauge, a first collecting pipe communicated with the pressure gauge and used for measuring a pressure value, a second collecting pipe communicated with the circulating pump, and a first thermometer and a second thermometer;
the circulating pump provides a power source for a circulating medium, the pressure gauge is used for measuring the pressure value of a first thin steel pipe, the first thermometer and the second thermometer are both arranged outside the incubator, the first thermometer is communicated with a third collecting pipe and stretches into the dry hot rock mass, and the second thermometer is communicated with a fourth collecting pipe and stretches into the incubator.
2. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the square box body takes iron, nickel and cobalt as metal base materials, and can resist high-temperature alloy with the temperature of more than 200 ℃.
3. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the electric heating mechanism is one or more of an electric heating wire, an electric heating pipe and an electric heating plate.
4. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the size of the dry hot rock mass is 15 x 30 cm, and the periphery of the dry hot rock mass covers the cement layer.
5. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: and the diameter of a gap in the dry-hot rock mass, which is respectively communicated with the first thin steel pipe and the second thin steel pipe, is 0.4-0.5 cm.
6. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the fluid passage has a diameter of 0.8 cm.
7. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the thickness of the cement layer was 1 cm.
8. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the square box body has the size of 31 x 32 x 17 cm.
9. The simulation experiment device for developing a geothermal system of dry-hot rock enhancement type according to claim 1, wherein: the second thin steel pipe is connected with the circulating pump through a threaded joint, and the first thin steel pipe, the crack formed by the dry hot rock mass and the second thin steel pipe form a fluid channel.
10. An experimental method for developing a simulation experiment apparatus using the dry hot rock enhanced geothermal system according to any one of claims 1 to 9, comprising the steps of:
s1: collecting rock mass at the actual depth according to the in-situ geological condition;
s2: cutting a rock mass to be cut into dry hot rock mass with the size of 15 x 30 cm by a rock cutting machine;
s3: cutting the dry hot rock mass, and cutting a gap for vertically placing the first thin steel pipe and the second thin steel pipe by using a professional tool;
s4: cutting a fluid channel simulating hydraulic fracturing on a dry hot rock mass by using a professional tool;
s5: inserting the first thin steel pipe and the second thin steel pipe into the rock mass gap cut in the step 3, bonding the dry hot rock mass, the first thin steel pipe and the second thin steel pipe together through glue, pouring cement on the outer wall of the dry hot rock mass, enabling the dry hot rock mass to be wrapped by the cement, and placing the dry hot rock mass into a square box body after the cement is dried;
s6: putting the whole into a constant temperature box, starting an electric heating mechanism, covering an insulating layer, and fully heating;
s7: and (3) filling the circulating medium from the second thin steel pipe, starting a circulating pump at the moment, and discharging the circulating medium from the second thin steel pipe, the first thin steel pipe through the fluid channel.
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| CN111312052B (en) * | 2020-04-02 | 2023-09-15 | 中国矿业大学(北京) | Experimental platform and experimental method for simulating mining rock stratum movement |
| CN115508406A (en) * | 2022-08-12 | 2022-12-23 | 山东大学 | System and method for testing force-heat-flow coupling characteristics in water injection and heat recovery processes of hot dry rock |
| CN115343445A (en) * | 2022-08-15 | 2022-11-15 | 山东地矿新能源有限公司 | Device for researching dry and hot rock stratum for geothermal exploration and monitoring |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2190209C1 (en) * | 2001-07-10 | 2002-09-27 | Гуров Петр Николаевич | Gear measuring thermal conductivity and volumetric heat capacity of pools in well |
| CN103743580A (en) * | 2013-12-04 | 2014-04-23 | 中石化石油工程设计有限公司 | Enhanced geothermal system development test device |
| KR101420615B1 (en) * | 2013-02-22 | 2014-07-17 | 한국과학기술원 | A system for measurement of ground thermal performance and conductivity, and the method |
| WO2016082188A1 (en) * | 2014-11-28 | 2016-06-02 | 吉林大学 | Hot dry rock multi-cycle heating system and production method therefor |
| CN107893652A (en) * | 2017-09-30 | 2018-04-10 | 中国石油大学(华东) | The hydraulic fracturing analogue experiment installation and method of the enhanced geothermal system of hot dry rock |
| CN208125403U (en) * | 2018-05-22 | 2018-11-20 | 李宗洋 | Geothermal energy resources extraction imitative experimental appliance |
| CN209432467U (en) * | 2019-04-01 | 2019-09-24 | 中国石油大学(华东) | A kind of enhanced geothermal system exploitation imitative experimental appliance of hot dry rock |
-
2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2190209C1 (en) * | 2001-07-10 | 2002-09-27 | Гуров Петр Николаевич | Gear measuring thermal conductivity and volumetric heat capacity of pools in well |
| KR101420615B1 (en) * | 2013-02-22 | 2014-07-17 | 한국과학기술원 | A system for measurement of ground thermal performance and conductivity, and the method |
| CN103743580A (en) * | 2013-12-04 | 2014-04-23 | 中石化石油工程设计有限公司 | Enhanced geothermal system development test device |
| WO2016082188A1 (en) * | 2014-11-28 | 2016-06-02 | 吉林大学 | Hot dry rock multi-cycle heating system and production method therefor |
| CN107893652A (en) * | 2017-09-30 | 2018-04-10 | 中国石油大学(华东) | The hydraulic fracturing analogue experiment installation and method of the enhanced geothermal system of hot dry rock |
| CN208125403U (en) * | 2018-05-22 | 2018-11-20 | 李宗洋 | Geothermal energy resources extraction imitative experimental appliance |
| CN209432467U (en) * | 2019-04-01 | 2019-09-24 | 中国石油大学(华东) | A kind of enhanced geothermal system exploitation imitative experimental appliance of hot dry rock |
Non-Patent Citations (1)
| Title |
|---|
| 干热岩水力压裂实验室模拟研究;许天福;张延军;于子望;胡忠君;郭亮亮;;科技导报(19);全文 * |
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