CN110346532A - A kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock - Google Patents
A kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock Download PDFInfo
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- CN110346532A CN110346532A CN201910481068.9A CN201910481068A CN110346532A CN 110346532 A CN110346532 A CN 110346532A CN 201910481068 A CN201910481068 A CN 201910481068A CN 110346532 A CN110346532 A CN 110346532A
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- carbon dioxide
- liquid storage
- storage pipe
- dioxide liquid
- sample
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The present invention provides a kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock, including carbon dioxide pressurization fills module, sound emission module and physics explosion module；It includes sequentially connected carbon dioxide storage tank, gas compressor and force (forcing) pump that carbon dioxide pressurization, which fills module,；Sound emission module includes several acoustic emission probes；Physics explosion module includes carbon dioxide liquid storage pipe, activator, shearing piece and sample holding chamber；Acoustic emission probe is located in sample holding chamber；Sample is placed in sample holding chamber, one end of carbon dioxide liquid storage pipe is connect with force (forcing) pump, and the other end is connect with sample holding chamber, and carbon dioxide liquid storage pipe storing carbon dioxide liquid, activator is located in carbon dioxide liquid storage pipe；Shearing piece is located in carbon dioxide liquid storage pipe；Carbon dioxide liquid gasifies rapidly after absorbing thermal energy, and volume expansion, which generates high pressure, to be made to shear piece fracture, and after shearing piece fracture, high power carbon dioxide gas, which acts on sample, makes it generate crack.
Description
Technical field
The present invention relates to dry-hot-rock geothermal energy development technique field more particularly to a kind of utilization carbon dioxide blast cracking are dry
The simulation laboratory test system of hot rock.
Background technique
Dry-hot-rock geothermal can exploit main technological difficulties be exactly heat reservori natural percolation ability it is poor, need to be transformed
It could effective exploitation.Currently, the main method for dry-hot-rock geothermal energy reservoir reconstruction is hydraulic fracturing technology, although using should
Technology achieves some considerable achievements, but there is also problems: surge pressure is low, and the activity duration is long, and water body leak-off is serious,
It is difficult to form extensive crack, easily induces microseism etc..It is proposed to this end that building hot dry rock heat reservori using carbon dioxide explosion
New method, to form heat reservori, commercial development hot dry rock provides new departure.
Currently, lacking theoretical and practice guidance using this new fracturing technology, more lack relevant demonstration testing.Needle
To the carbon dioxide simulation laboratory test of hot dry rock reservoir reconstruction, it may be determined that compressibility, fracture pressure and the pressure of dry-heat rock body
Effect etc. is split, is a kind of reliable, effective means of the xeothermic cleft propagation law of understanding and its geometric shape, for further research
Provide good testing and verification.
Summary of the invention
In view of this, the present invention provides a kind of simulation laboratory test systems using carbon dioxide blast cracking hot dry rock
System realizes the operable explosion bulge test of indoor security, it is intended to simulate the carbon dioxide blast cracking under the conditions of different burst pressures
Test, solves the problems, such as that current interior can not simulate carbon dioxide blast cracking, causes for further research carbon dioxide explosion
The technology of splitting provides new way, provides new technical support for the exploitation utilization of dry-hot-rock geothermal energy.
The present invention provides a kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock, including titanium dioxide
Carbon pressurization fills module, sound emission module and physics explosion module；It includes being sequentially connected that the carbon dioxide pressurization, which fills module,
Carbon dioxide storage tank, gas compressor and force (forcing) pump；The carbon dioxide storage tank storing carbon dioxide gas, the gas
Gas compressor compresses carbon dioxide gas, and the force (forcing) pump, which carries out pressurization to carbon dioxide gas, is converted into carbon dioxide gas
Carbon dioxide liquid；The sound emission module includes several acoustic emission probes；The physics explosion module includes carbon dioxide
Liquid storage pipe, activator, shearing piece and sample holding chamber；The acoustic emission probe is located in sample holding chamber；The sample is placed
Indoor placement sample, the carbon dioxide liquid storage pipe is between force (forcing) pump and sample holding chamber, the carbon dioxide liquid storage pipe
One end connect with force (forcing) pump, the other end is connect with sample holding chamber, and carbon dioxide liquid storage pipe storage is from force (forcing) pump stream
Carbon dioxide liquid out, the activator are located in carbon dioxide liquid storage pipe, are used to provide thermal energy to carbon dioxide liquid；Institute
It states shearing piece to be located in carbon dioxide liquid storage pipe, for closing the right end of carbon dioxide liquid storage pipe, is located at the carbon dioxide and stores up
Carbon dioxide liquid in liquid pipe gasifies rapidly after absorbing thermal energy, and volume expansion, which generates high pressure, to be made to shear piece fracture, the shearing
After piece fracture, high power carbon dioxide gas, which acts on sample, makes it generate crack, and the acoustic emission probe records in blasting process
Crack propagation data.
Further, the simulation laboratory test system further includes control device, and the control device includes at computer
Reason system, the sound emission module further include full information acoustic emission analysis instrument, the input terminal of the full information acoustic emission analysis instrument
It is connect with acoustic emission probe, the output end of the full information acoustic emission analysis instrument is connect with computer processing system.
Further, the physics explosion module further includes pressure sensor, and the pressure sensor is used to detect dioxy
Change the pressure of the carbon dioxide liquid stored in carbon liquid storage pipe, the output end and computer processing system of the pressure sensor connect
It connects.
Further, the right end of the carbon dioxide liquid storage pipe opens up second orifice, and annular is arranged at the second orifice
Buckle, the shearing piece are mounted in annular buckle, and the physics explosion module further includes leakproof screw ring, the leakproof screw
Ring locking annular buckle.
Further, the left end of the sample holding chamber opens up the 4th aperture, and the right end of the carbon dioxide liquid storage pipe is opened
If third aperture, the 4th aperture is connected to third aperture, and the metal catheter of open at both ends is placed in the 4th aperture,
The inside of the metal catheter insertion sample.
Technical solution provided by the invention has the benefit that simulation laboratory test system provided by the invention passes through
The cooperation that carbon dioxide pressurization fills module, sound emission module, physics explosion module and control device can simulate different explosions
Under pressure condition carbon dioxide blast cracking test, facilitate technical staff probe into carbon dioxide gas explosion the mechanism of action and
Damage and failure rule, testing and verification carbon dioxide explosion build the various feasible schemes of hot dry rock heat reservori, help to push
The development of hot dry rock reservoir technology is built in carbon dioxide explosion, is of great significance to the exploitation of xeothermic lithotype geothermal energy.
Detailed description of the invention
Fig. 1 is a kind of structural representation of the simulation laboratory test system using carbon dioxide blast cracking hot dry rock of the present invention
Figure.
Fig. 2 is the right end detailed schematic of carbon dioxide liquid storage pipe.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is further described.
Referring to FIG. 1, the embodiment provides a kind of indoor moulds using carbon dioxide blast cracking hot dry rock
Quasi- pilot system, including carbon dioxide pressurization fill module, sound emission module, physics explosion module and control device, wherein two
It includes carbon dioxide storage tank 1, gas compressor 3, force (forcing) pump 4 that carbonoxide pressurization, which fills module, and carbon dioxide storage tank 1 goes out
Mouth end is connect with the arrival end of gas compressor 3, and the outlet end of gas compressor 3 is connect with the arrival end of force (forcing) pump 4, and dioxy
Change carbon storage tank 1, gas compressor 3, connected by gas pipeline 5 between force (forcing) pump 4, storage in carbon dioxide storage tank 1
The left and right ends of carbon dioxide gas, the gas pipeline 5 between carbon dioxide storage tank 1 and gas compressor 3 are respectively arranged
One galvanometer 2, galvanometer 2 are used to detect the flow of carbon dioxide.
Sound emission module includes eight acoustic emission probes 13 and full information acoustic emission analysis instrument 18, and acoustic emission probe 13 passes through
Signal wire 17 is electrically connected with full information acoustic emission analysis instrument 18, physics explosion module include carbon dioxide liquid storage pipe 6, activator 7,
Pressure sensor 8, shearing piece 9, leakproof screw ring 10 and sample holding chamber 12, control device include computer processing system 19,
Computer processing system 19 is electrically connected with the output end of the output end of pressure sensor 8 and full information acoustic emission analysis instrument 18.
The inside of carbon dioxide liquid storage pipe 6 is hollow structure, and left upper part opens up the first aperture 61, in the first aperture 61
It is inserted into one end of fluid pipeline 63, the outlet end of the other end connection force (forcing) pump 4 of fluid pipeline 63, with reference to Fig. 2, carbon dioxide storage
The right end of liquid pipe 6 opens up second orifice 62 and third aperture 64, second orifice 62 and third aperture 64 with carbon dioxide liquid storage
The inside of pipe 6 is connected to, and third aperture 64 is close with the position of second orifice 62, and activator 7, pressure sensor 8, shearing piece 9 are equal
Positioned at the inside of carbon dioxide liquid storage pipe 6, the left end of carbon dioxide liquid storage pipe 6, which is threadedly coupled, fills energy head, and activator 7, which is located at, fills energy
In head, pressure sensor 8 is placed on the inside of the left end tube wall of carbon dioxide liquid storage pipe 6, setting annular buckle at second orifice 62,
Shearing piece 9 is mounted in annular buckle, and annular buckle is locked by leakproof screw ring 10, and then closes carbon dioxide liquid storage pipe 6
Right end, in order to guarantee demolition effect, the chamber portion of the right end of carbon dioxide liquid storage pipe 6 is designed as taper.
The right end of sample holding chamber 12 and carbon dioxide liquid storage pipe 6 by welding seamless connection, sample holding chamber 12 it is upper
End and right end are evenly arranged acoustic emission probe 13, and the right end of sample holding chamber 12 is equipped with the movable block 15 and secure latch of cooperation
16, movable block 15 is flexibly connected with sample holding chamber 12, opens movable block 15, sample 11 can be put into sample holding chamber 12,
Movable block 15 and decentralization lock 16 are closed, movable block 15 is clasped using lock 16, sample holding chamber 12 can be sealed, sample is placed
The left end of room 12 opens up the 4th aperture 121, and the 4th aperture 121 is connected to third aperture 64, the size and third of the 4th aperture 121
The size of aperture 64 is adapted, and places the metal catheter 14 of open at both ends in the 4th aperture 121, the diameter of metal catheter 14 with
The equivalent width of 4th aperture 121 can be in the gap of metal catheter 14 and the 4th aperture 121 in order to avoid gas leakage
Coat sealant.
12 suitable size of sample holding chamber and be cube, can place common large dimension specimen 11 (300 × 300 ×
300mm)。
The test process of simulation laboratory test system provided in this embodiment are as follows:
(1) processing of sample 11: sample 11 can be divided by the rock of cube or be poured according to certain sandstone ratio
The concrete block for filling solidification can be at the upper surface center of sample 11 in order to guarantee that metal catheter 14 can be inserted freely into sample 11
The drilling of 15cm long to its internal vertical is preset in position, and bottom hole reserves several centimetres of Open-Hole Section, and the aperture of drilling is greater than and gold
The diameter for belonging to conduit 14 is consistent；
(2) each pipeline is assembled, and detects assembling effect, prevents gas leakage and signal transmission bad, shearing piece 9 is placed
In the right end of carbon dioxide liquid storage pipe 6, rotates leakproof screw ring 10 upwards by screw thread and lock annular buckle；
(3) open 1 carbon dioxide gas of carbon dioxide storage tank, carbon dioxide gas successively through compressor 3 compression,
Force (forcing) pump 4 is converted into carbon dioxide liquid after pressurizeing, and then flows into carbon dioxide liquid storage pipe 6, shown by pressure sensor 8
Numerical value when reaching carbon dioxide and filling preset value, close carbon dioxide storage tank 1, stop filling；
(4) movable block 15 is opened, is put into sample 11 from the right end of sample holding chamber 12, metal catheter 14 is made to be inserted into sample 11
Interior, the surface of sample 11 is bonded with acoustic emission probe 13, closes movable block 15, decentralization lock 16；
(5) tested: excitation activator 7, activator 7 generates a large amount of thermal energy, in carbon dioxide liquid storage pipe 6
Carbon dioxide liquid absorbs the thermal energy that activator 7 generates, and gasifies in a very short period of time, more than 600 times of volume instantaneous expansion simultaneously generates
High pressure, when pressure reaches a certain limit, shearing piece 9 is broken, and high power carbon dioxide gas moment is broken out from metal catheter 14
Sample 11 is acted on, so that it is generated crack, acoustic emission probe 13 records the crack propagation data in blasting process, and passes through signal
17 real-time Transmission of line to full information acoustic emission analysis instrument 18, full information Acoustic radiating instrument 18 by the signal received after analysis,
It is transferred to computer processing system 19, for further processing；
(6) when the Numerical regression initial value of pressure sensor 8, off-test open movable block 15, taking-up sample 11 is seen
Its crack propagation situation is examined, in conjunction with acoustic emission information, Rule Summary.
Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero
Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality
Use should not limit the claimed range of the application.
In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock, which is characterized in that including titanium dioxide
Carbon pressurization fills module, sound emission module and physics explosion module；It includes being sequentially connected that the carbon dioxide pressurization, which fills module,
Carbon dioxide storage tank, gas compressor and force (forcing) pump；The carbon dioxide storage tank storing carbon dioxide gas, the gas
Gas compressor compresses carbon dioxide gas, and the force (forcing) pump, which carries out pressurization to carbon dioxide gas, is converted into carbon dioxide gas
Carbon dioxide liquid；The sound emission module includes several acoustic emission probes；The physics explosion module includes carbon dioxide
Liquid storage pipe, activator, shearing piece and sample holding chamber；The acoustic emission probe is located in sample holding chamber；The sample is placed
Indoor placement sample, the carbon dioxide liquid storage pipe is between force (forcing) pump and sample holding chamber, the carbon dioxide liquid storage pipe
One end connect with force (forcing) pump, the other end is connect with sample holding chamber, and carbon dioxide liquid storage pipe storage is from force (forcing) pump stream
Carbon dioxide liquid out, the activator are located in carbon dioxide liquid storage pipe, are used to provide thermal energy to carbon dioxide liquid；Institute
It states shearing piece to be located in carbon dioxide liquid storage pipe, for closing the right end of carbon dioxide liquid storage pipe, is located at the carbon dioxide and stores up
Carbon dioxide liquid in liquid pipe gasifies rapidly after absorbing thermal energy, and volume expansion, which generates high pressure, to be made to shear piece fracture, the shearing
After piece fracture, high power carbon dioxide gas, which acts on sample, makes it generate crack, and the acoustic emission probe records in blasting process
Crack propagation data.
2. the simulation laboratory test system according to claim 1 using carbon dioxide blast cracking hot dry rock, feature
It is, the simulation laboratory test system further includes control device, and the control device includes computer processing system, the sound
Transmitting module further includes full information acoustic emission analysis instrument, and the input terminal and acoustic emission probe of the full information acoustic emission analysis instrument connect
It connects, the output end of the full information acoustic emission analysis instrument is connect with computer processing system.
3. the simulation laboratory test system according to claim 2 using carbon dioxide blast cracking hot dry rock, feature
It is, the physics explosion module further includes pressure sensor, and the pressure sensor is used to detect in carbon dioxide liquid storage pipe
The output end of the pressure of the carbon dioxide liquid of storage, the pressure sensor is connect with computer processing system.
4. the simulation laboratory test system according to claim 1 using carbon dioxide blast cracking hot dry rock, feature
It is, the right end of the carbon dioxide liquid storage pipe opens up second orifice, setting annular buckle, the shearing at the second orifice
Piece is mounted in annular buckle, and the physics explosion module further includes leakproof screw ring, and the leakproof screw ring locks annular snap
Button.
5. the simulation laboratory test system according to claim 1 using carbon dioxide blast cracking hot dry rock, feature
It is, the left end of the sample holding chamber opens up the 4th aperture, and the right end of the carbon dioxide liquid storage pipe opens up third aperture, institute
It states the 4th aperture to be connected to third aperture, the metal catheter of open at both ends, the metal catheter is placed in the 4th aperture
It is inserted into the inside of sample.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481068.9A CN110346532A (en) | 2019-06-04 | 2019-06-04 | A kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock |
| AU2020100250A AU2020100250A4 (en) | 2019-06-04 | 2020-02-20 | Indoor stimulation test system for carbon dioxide blast cracking of hot dry rock |
| ZA202001127A ZA202001127B (en) | 2019-06-04 | 2020-02-24 | Indoor simulation test system for carbon-dioxide-blasting-based dry hot rock cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910481068.9A CN110346532A (en) | 2019-06-04 | 2019-06-04 | A kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock |
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| Publication Number | Publication Date |
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| CN110346532A true CN110346532A (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910481068.9A Pending CN110346532A (en) | 2019-06-04 | 2019-06-04 | A kind of simulation laboratory test system using carbon dioxide blast cracking hot dry rock |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110346532A (en) |
| AU (1) | AU2020100250A4 (en) |
| ZA (1) | ZA202001127B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113376034A (en) * | 2021-06-10 | 2021-09-10 | 河南理工大学 | Rock stratum borehole CO simulation2Test system for fracturing rock sample damage mechanism |
| CN113514337A (en) * | 2020-04-09 | 2021-10-19 | 新奥科技发展有限公司 | Hot dry rock rupture pressure test device and method |
| CN114152731A (en) * | 2021-12-15 | 2022-03-08 | 石家庄铁道大学 | Uranium ore carbon dioxide blasting and carbon dioxide and oxygen ground immersion mining test device |
| CN114264551A (en) * | 2021-11-24 | 2022-04-01 | 合肥通用机械研究院有限公司 | Bursting test method and system for pressure vessel |
| CN114769832A (en) * | 2022-06-10 | 2022-07-22 | 郑州宇光复合材料有限公司 | Carbon dioxide physical explosion welding device and welding method |
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- 2020-02-24 ZA ZA202001127A patent/ZA202001127B/en unknown
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113514337A (en) * | 2020-04-09 | 2021-10-19 | 新奥科技发展有限公司 | Hot dry rock rupture pressure test device and method |
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| CN113376034A (en) * | 2021-06-10 | 2021-09-10 | 河南理工大学 | Rock stratum borehole CO simulation2Test system for fracturing rock sample damage mechanism |
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| CN114264551A (en) * | 2021-11-24 | 2022-04-01 | 合肥通用机械研究院有限公司 | Bursting test method and system for pressure vessel |
| CN114264551B (en) * | 2021-11-24 | 2023-12-12 | 合肥通用机械研究院有限公司 | Explosion test method and explosion test system for pressure vessel |
| CN114152731A (en) * | 2021-12-15 | 2022-03-08 | 石家庄铁道大学 | Uranium ore carbon dioxide blasting and carbon dioxide and oxygen ground immersion mining test device |
| CN114769832A (en) * | 2022-06-10 | 2022-07-22 | 郑州宇光复合材料有限公司 | Carbon dioxide physical explosion welding device and welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020100250A4 (en) | 2020-03-26 |
| ZA202001127B (en) | 2020-11-25 |
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