CN108362623A - A kind of microcosmic rock coupling infiltration experiment device based on μ CT scan - Google Patents
A kind of microcosmic rock coupling infiltration experiment device based on μ CT scan Download PDFInfo
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- CN108362623A CN108362623A CN201810133379.1A CN201810133379A CN108362623A CN 108362623 A CN108362623 A CN 108362623A CN 201810133379 A CN201810133379 A CN 201810133379A CN 108362623 A CN108362623 A CN 108362623A
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- 239000011435 rock Substances 0.000 title claims abstract description 84
- 238000002591 computed tomography Methods 0.000 title claims abstract description 51
- 238000002474 experimental method Methods 0.000 title claims abstract description 28
- 238000001764 infiltration Methods 0.000 title claims abstract description 23
- 230000008595 infiltration Effects 0.000 title claims abstract description 23
- 230000008878 coupling Effects 0.000 title description 8
- 238000010168 coupling process Methods 0.000 title description 8
- 238000005859 coupling reaction Methods 0.000 title description 8
- 239000000126 substance Substances 0.000 claims abstract description 34
- 230000010165 autogamy Effects 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000035699 permeability Effects 0.000 claims description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000498 cooling water Substances 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 7
- 230000003204 osmotic effect Effects 0.000 claims description 7
- 239000005030 aluminium foil Substances 0.000 claims description 6
- 238000011068 loading method Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 35
- 238000011160 research Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 150000001398 aluminium Chemical class 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000012412 chemical coupling Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N2015/0846—Investigating permeability, pore-volume, or surface area of porous materials by use of radiation, e.g. transmitted or reflected light
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of, and the microcosmic rock based on μ CT scan couples infiltration experiment device, including computer control system, temperature regulating device, hydraulic device, chemical solution autogamy device, μ CT scan device, balancing gate pit, data processing system and data acquisition device；The hydraulic device, chemical solution autogamy device are connected to by pipeline with balancing gate pit, and the temperature regulating device, hydraulic device, chemical solution autogamy device, μ CT scan device and data acquisition device are electrically connected with computer control system；The present invention not only can control temperature regulating device, hydraulic device and chemical solution autogamy device by computer control system and act on multi- scenarios method experimental condition into balancing gate pit, the three dimensional pore structures that rock sample can also be observed in real time by μ CT scan device during the test, to obtain the seepage characteristic of rock.
Description
Technical field
The invention belongs to deep rock mass permeability test technical field, especially a kind of microcosmic rock coupling based on μ CT scan
Close infiltration experiment device.
Background technology
Permeability of rock is that (hydraulic and hydroelectric engineering, carbon dioxide capture and geological storage (CCS), core are useless for numerous industries
Expect geologic storage, Reservoir Development, Unconventional gas exploitation etc.) and geological sciences problem (the fluid flowing of such as shear-zone, basin
Ground evolution, earthquake prediction etc.) in one of most important hydraulic characteristic(s).Rock permeability depends on rock pore structure, usually uses
Following geometric parameter description：Porosity, porosity communication rate, curvature, mineral grain size and other geometrical factors etc..By
In large-scale Human dried bloodstains (Store water, CO2 seal up for safekeeping, oil-gas mining etc.) and the various physical and chemical processes of nature
(diagenesis, compressive deformation, crystallization forming, pressure dissolving and sintering etc.) effect, pore structure change also with the time,
It is significantly changed so as to cause permeability of rock and mechanical characteristic, therefore, how from microscopic void scale study of rocks hole
It is rock mechanics and geological sciences project urgently to be resolved hurrily that gap structure, which changes and establishes permeability of rock evolutionary model,.
Currently, to the research many places of the microcosmic Penetration Signature of rock under the conditions of multi- scenarios method in theoretical research stage, someone
Design some rock permeability Sample devices.Have the thin sight infiltration experiment device that Imperial College develops, it can be at high temperature
Confining pressure, axis pressure, hydraulic pressure are loaded, and rock sample in specimen can be scanned.Hohai University's Seepage Experiment room and Chengdu servo
" the high hydraulic pressure temperature chemical Coupling infiltration experiment device of fissure rock high stress " that the cooperative development of hydraulic test Co., Ltd is developed
Confining pressure, axis pressure, osmotic pressure (i.e. pore water pressure) can be loaded, and water chemistry experiment can be carried out, and room temperature~150 can be carried out
DEG C, various stress condition sample testing permeabilities researchs at a temperature of room temperature~-30 DEG C, but it is primarily directed to rock macroscopic properties
It is studied, the three dimensional pore structures of rock sample cannot be observed in real time during the test.And the pore structure control that rock is microcosmic
The porosity and permeability of rock, therefore to the accurate understanding of microcosmic pore structure and acquisition to study of rocks seepage flow characteristics
It is most important." triaxial apparatus of the micro- burnt CT scan of rock " that Wuhan Inst. of Rock and Soil Mechanics, Chinese Academy of Sciences develops can apply three axis
Pressure, and the measurement in not unloading pressure to sample progress CT scan and infiltration coefficient, but it is to the scanning of sample
Discontinuity, real-time monitoring truly cannot be reached.
Invention content
In response to the problems existing in the prior art, the purpose of the present invention is to provide a kind of microcosmic rock coupling based on μ CT scan
Infiltration experiment device is closed, which controls temperature regulating device, hydraulic device and chemical solution certainly by using computer control system
With device, the constant confining pressure that maintains a long-term stability under conditions of high/low temperature, axis pressure and osmotic pressure can carry out high stress, hypertonic
Rock Experimental Study on Seepage Characteristics is studied under the conditions of pressure, temperature, chemical multi- scenarios method, and μ CT scan can be utilized to fill during the test
The situation of change that (sweep interval is up to minute grade) observes rock three dimensional pore structures in real time is set, to obtain oozing for rock
Properties of flow.Meanwhile, required memory space huge the problems such as more in order to solve scan data, using data processing system, to experiment
The data monitored in real time in the process carry out data processing, to meet memory requirement.
To achieve the above object, the technical solution adopted by the present invention is：It is a kind of based on μ CT scan microcosmic rock coupling ooze
Saturating experimental rig, including computer control system, temperature regulating device, hydraulic device, chemical solution autogamy device, μ CT scan device,
Balancing gate pit, data processing system and data acquisition device；The temperature regulating device, hydraulic device, chemical solution autogamy device, μ CT
Scanning means and the data acquisition device are electrically connected with the computer control system respectively, the temperature regulating device, hydraulic pressure dress
It sets and is connected to the balancing gate pit by pipeline with the chemical solution autogamy device, the balancing gate pit and the data processing system
Between be additionally provided with body become measuring instrument；Before rock sample is packed into the balancing gate pit, the μ CT scan device is first passed through to the rock sample
It is scanned, obtains the micropore structure of rock sample in a free state；After rock sample is packed into the balancing gate pit, then by described
Computer control system controls the temperature regulating device, hydraulic device and chemical solution autogamy device to the rock sample in high/low temperature
Under the conditions of load confining pressure, axis pressure, osmotic pressure and chemical solution carry out testing permeability research, while passing through the μ CT scan and filling
It sets and real time scan observation is carried out to the indoor rock sample of the pressure, and the data that will be observed that and the body become measuring instrument and measure
Data be sent to the data processing system, the data processing system becomes data that measuring instrument measures and described to the body
The data of μ CT scan devices scanning are handled, then by all treated data input data harvesters and feed back to institute
Computer control system is stated, these data are analyzed finally by the computer control system, and adjustment parameter continues
Experiment, until obtaining seepage characteristic of rock under the conditions of multi- scenarios method.
Specifically, the μ CT scan device particularly for micron order pore scale rock sample carry out tomoscan,
Test observation, the μ CT scan device highly can carry out mechanics, infiltration to a diameter of 5mm for the rock sample within the scope of 10mm
Property experimental study；
The μ CT scan device is to penetrate rock sample tomography using X-ray to be scanned, and collect X-ray and pass through section not
Information after commaterial decaying, then the information to being collected into carry out data processing, and the X to obtain property particle on section is penetrated
Linear absorption coefficient value, and the digital picture of an amplitude object section is formed, spatial resolution can reach 1 μm.
Specifically, the balancing gate pit includes rock sample, rubber sleave, insulating tube and laminated aluminium foil successively outward from center；
Balancing gate pit's both ends of the surface are respectively equipped with seepage flow entrance and seepage exit；
The rubber sleave is described for being kept the temperature to the balancing gate pit for protecting the rock sample, the insulating tube
Laminated aluminium foil plays sealing and heat-insulated effect.
Specifically, the computer control system has full-automatic, semi-automatic and manual three kinds of control models, for examination
It tests condition and carries out accurate independent control, the load that the μ CT scan device can respectively with temperature, seepage flow, stress and chemical solution
Device independently coordinates, can real simulation pore water pressure, big hydraulic gradient condition, and carry out various ooze under these conditions
Thoroughly, the experimental study of mechanical characteristic.
Specifically, the temperature regulating device includes temperature sensor, heater, refrigerator and cooling water tank；
The temperature sensor, heater and refrigerator are arranged in the balancing gate pit, for controlling the balancing gate pit
Internal temperature, between the cooling water tank setting becomes measuring instrument in the balancing gate pit and the body.
Specifically, the hydraulic device includes high-pressure osmosis pump, low-pressure permeability pump, high pressure sensor, low pressure sensor, encloses
Press pump, axis press pump and hydraulic control system；
The high pressure sensor is connected to high-pressure osmosis pump, and the low pressure sensor and low-pressure permeability pump connect
It is logical；
The high-pressure osmosis pump, low-pressure permeability pump, confining pressure pump and the axis press pump are electrically connected with the hydraulic control system
It connects.
Specifically, the chemical solution autogamy device includes solution receptacle and water tank, the solution receptacle and described
Solution inlet and taphole are equipped on water tank；
The chemical solution autogamy device configures the chemistry of experiment demand by the solution receptacle and the water tank
Solution.
Specifically, at least provided with next device on the pipeline：It is solenoid valve, flow sensor, filter, unidirectional
Valve, manual governing valve and sink；
The solution receptacle and the water tank pass through pipeline and the solenoid valve and flow sensor that are arranged on pipeline
Connection, is connected to described filter one end again after connection；The other end of the filter is pumped respectively with the high-pressure osmosis and institute
The entrance for stating low-pressure permeability pump is connected to by pipeline with the manual governing valve being arranged on pipeline；High-pressure osmosis pump and described
The outlet of low-pressure permeability pump is collaborated by pipeline, passes through pipeline and the hand being arranged on pipeline with the seepage flow entrance again behind interflow
Dynamic speed governing valve is connected to flow sensor.
Specifically, the body becomes measuring instrument, data processing system, data acquisition device and the computer control system
It is sequentially connected electrically.
Compared with prior art, the beneficial effects of the invention are as follows：1, the present apparatus can be highly 10mm models to a diameter of 5mm
Rock sample in enclosing carries out mechanics, the laboratory study on behavior of permeability, and can be that micron-sized rock sample carries out experiment in fact to pore scale
When observe；2, the present apparatus can carry out rock in conjunction with μ CT scan device under the conditions of high stress, hypertonic pressure, temperature, chemical multi- scenarios method
The situation of change of rock three dimensional pore structures is observed in the experimental study of stone Penetration Signature in real time during the test；3, the meter
Calculation machine control system have full-automatic, semi-automatic and manual three kinds of control modes, the μ CT scan device can respectively with temperature,
The loading device of seepage flow, stress and chemical solution coordinates independently of each other so that the control of experimental condition is more accurate, and it is complete from
It is dynamic control go wrong after, also can be used it is semi-automatic/manually control and continue to test.
Description of the drawings
Fig. 1 is the schematic block diagram that a kind of microcosmic rock based on μ CT scan of the present invention couples infiltration experiment device.
Fig. 2 is the structural schematic diagram that a kind of microcosmic rock based on μ CT scan of the present invention couples infiltration experiment device.
Fig. 3 is balancing gate pit's overall structure diagram in the present invention.
Fig. 4 is balancing gate pit's internal structure schematic diagram in the present invention.
In figure：1, computer control system；2, temperature regulating device；201, temperature sensor；202, heater；203, freeze
Device；204, cooling water tank；3, hydraulic device；301, high-pressure osmosis pumps；3011, high pressure sensor；302, low-pressure permeability pumps；
3021, low pressure sensor；303, hydraulic control system；304, confining pressure pumps；305, axis press pump；4, chemical solution autogamy device；
401, solution receptacle；402, water tank；5, μ CT scan device；6, balancing gate pit；601, rock sample；602, rubber sleave；603, it keeps the temperature
Pipe；604, aluminium foil；605, seepage flow entrance；606, seepage exit；7, body becomes measuring instrument；8, data processing system；9, data acquire
Device；1001, solenoid valve；1002, flow sensor；1003, filter；1004, check valve；1005, manual governing valve；
1006, sink；11, solution inlet；12, taphole.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, technical scheme of the present invention is clearly and completely described, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, all other embodiment that those of ordinary skill in the art are obtained under the conditions of not making creative work belong to
The scope of protection of the invention.
Embodiment 1
As shown in Figures 1 to 4, a kind of microcosmic rock coupling infiltration experiment device based on μ CT scan is present embodiments provided,
Including computer control system 1, temperature regulating device 2, hydraulic device 3, chemical solution autogamy device 4, μ CT scan device 5 and pressure
Room 6；The temperature regulating device 2, hydraulic device 3, chemical solution autogamy device 4 and the μ CT scan device 5 respectively with the meter
Calculation machine control system 1 is electrically connected；The temperature regulating device 2, hydraulic device 3 and chemical solution autogamy device 4 by pipeline with it is described
Balancing gate pit 6 is connected to；
Specifically, the balancing gate pit 6 includes rock sample 601, rubber sleave 602,603 and of insulating tube successively outward from center
Laminated aluminium foil 604；
Specifically, 6 both ends of the surface of the balancing gate pit are respectively equipped with seepage flow entrance 605 and seepage exit 606；
The rubber sleave 602 is for protecting the rock sample 601, the insulating tube 603 to be used to carry out the balancing gate pit 6
Heat preservation, the laminated aluminium foil 604 play sealing and heat-insulated effect.
Specifically, the temperature regulating device 2 includes temperature sensor 201, heater 202, refrigerator 203 and cooling water tank
204；
The temperature sensor 201, heater 202 and refrigerator 203 are arranged in the balancing gate pit 6, for controlling
Temperature inside the balancing gate pit 6, between the setting of the cooling water tank 204 becomes measuring instrument 7 in the balancing gate pit 6 and the body.
Specifically, the hydraulic device 3 include high-pressure osmosis pump 301, it is low-pressure permeability pump 302, high pressure sensor 3011, low
Pressure sensor 3021, confining pressure pump 304, axis press pump 305 and hydraulic control system 303；
The high pressure sensor 3011 and the high-pressure osmosis pump 301 is connected to, the low pressure sensor 3021 and described low
Osmotic pumps 302 are pressed to be connected to；
High-pressure osmosis pump 301, low-pressure permeability pump 302, confining pressure pump 304 and the axis press pump 305 with the hydraulic pressure
Control system 303 is electrically connected；
The confining pressure pump 304 and the axis press pump 305 are used to load high stress experimental condition to 6 both ends of the balancing gate pit；
Specifically, the chemical solution autogamy device 4 includes solution receptacle 401 and water tank 402, the solution receptacle
401 and the water tank 402 on be equipped with solution inlet 11 and taphole 12；
The solution receptacle 401, water tank 402 are with high-pressure osmosis pump 301 and low-pressure permeability pump 302 by described
Pipeline is connected to, and the high-pressure osmosis pump 301 and low-pressure permeability pump 302 to the balancing gate pit 6 for loading hypertonic pressure experiment
Condition.
Specifically, at least provided with next device on the pipeline：Solenoid valve 1001, flow sensor 1002, filtering
Device 1003, check valve 1004, manual governing valve 1005 and sink 1006；
The solution receptacle 401 and the water tank 402 pass through 1001 He of pipeline and the solenoid valve being arranged on pipeline
Flow sensor 1002 is connected to, and is connected to again with 1003 one end of the filter after connection；The other end of the filter 1003 point
Entrance not with high-pressure osmosis pump 301 and low-pressure permeability pump 302 passes through pipeline and the manual tune being arranged on pipeline
Fast valve 1005 is connected to；The outlet of the high-pressure osmosis pump 301 and low-pressure permeability pump 302 is collaborated by pipeline, behind interflow again
It is connected to by pipeline and the manual governing valve 1005 being arranged on pipeline and flow sensor 1002 with the seepage flow entrance 605.
The setting of the sink 1006 is connected to below node with 401 outlet conduit of solution receptacle in the water tank 402, the high pressure
The outlet conduit of osmotic pumps 301 and low-pressure permeability pump 302 and the water inlet line of the balancing gate pit 6 be connected to below node and institute
It states body and becomes 7 lower section of measuring instrument.
Specifically, the solenoid valve 1001 automatically controls institute according to the flow information that the flow sensor 1002 detects
Opening/closing for solenoid valve 1001 is stated, the filter 1003 is used to filter out the sediment in mixed solution, the check valve
1004 can prevent solution from flowing backwards, and the manual governing valve 1005 for adjusting flow manually.
6 both ends of the surface of the balancing gate pit are respectively equipped with seepage flow entrance 605 and seepage exit 606, the seepage flow entrance 605 and institute
State high-pressure osmosis pump 301, the outlet conduit of low-pressure permeability pump 302 is connected；The seepage exit 606 and the cooling water tank
204 are connected, and the cooling water tank 204 becomes measuring instrument 7 with the body again and is connected to.
The present invention controls the temperature regulating device 2, hydraulic device 3 and the chemical solution by the computer control system 1
Liquid autogamy device 4 loads high stress, hypertonic pressure, temperature and a variety of coupling conditions of chemistry to the balancing gate pit 6, and can test
The situation of change for observing rock three dimensional pore structures in journey in real time by the μ CT scan device 5, to obtain more accurately
Permeability of rock.
Embodiment 2
As shown in Figure 1, a kind of microcosmic rock coupling infiltration experiment device based on μ CT scan is present embodiments provided, with
Difference lies in the device further includes that body becomes measuring instrument 7, data processing system 8 and data acquisition device 9 to above-described embodiment 1；Institute
It states body change measuring instrument 7 to be connected to by pipeline with balancing gate pit 6, the body becomes measuring instrument 7, data processing system 8, data acquisition device
9 and computer control system 1 be sequentially connected electrically.
To solve the problems, such as that scan data amount of storage is big, scan data is carried out in real time by the data processing system 8
Processing, is then delivered to data acquisition device 9 with together with other test observation data, can carry out the acquisition of long term data, meets
The chronicity requirement of In Rock Seepage Tests；The computer control system 1 has full-automatic, semi-automatic and manual three kinds of control mould
Formula, the μ CT scan device 5 can independently coordinate with the loading device of temperature, seepage flow, stress and chemical solution respectively, for pair
Experimental condition carries out accurate independent control, can real simulation pore water pressure, the condition of big hydraulic gradient and under these conditions
Various infiltrations, the experimental study of mechanical characteristic are carried out, to obtain abundanter experimental data.
Before rock sample 601 is packed into the balancing gate pit 6, first passes through the μ CT scan device 5 and the rock sample 601 is carried out
Scanning, obtains the micropore structure of the rock sample 601 in a free state, the balancing gate pit 6 is packed into the rock sample 601
Afterwards, then by the computer control system 1 it is right the temperature regulating device 2, hydraulic device 3 and chemical solution autogamy device 4 to be controlled
The rock sample 601 loads confining pressure, axis pressure, osmotic pressure and chemical solution under the conditions of high/low temperature and carries out testing permeability research, leads to
It crosses the body change measuring instrument 7 to measure related data and be sent to the data processing system 8, while passing through the μ CT scan and filling
It sets the rock sample 601 in 5 pairs of balancing gate pits 6 and carries out real time scan observation, and the data that will be observed that are sent at the data
All data are input to by reason system 8, the data processing system 8 again after handling scanning observation data and measurement data
Data acquisition device 9 simultaneously feeds back to the computer control system 1, is counted to these finally by the computer control system 1
According to being analyzed, and adjustment parameter continues to test, until obtaining seepage characteristic of rock under the conditions of multi- scenarios method.
Specifically, the μ CT scan device 5 to a diameter of 5mm, highly for the rock sample within 10mm for carrying out power
It learns, the laboratory study on behavior of permeability, and can be that micron-sized rock sample is scanned observation to pore scale.
The μ CT scan device penetrates rock sample tomography using X-ray and is scanned, and it is different by section to collect X-ray
Information after substance decaying, then the information to being collected into carry out data processing, to obtain the X-ray of property particle on section
Absorption coefficient value, and the digital picture of an amplitude object section is formed, spatial resolution can reach micron level.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of microcosmic rock based on μ CT scan couples infiltration experiment device, which is characterized in that including computer control system
(1), temperature regulating device (2), hydraulic device (3), chemical solution autogamy device (4), μ CT scan device (5), balancing gate pit (6), data
Processing system (8) and data acquisition device (9)；The temperature regulating device (2), hydraulic device (3), chemical solution autogamy device (4),
μ CT scan device (5) and the data acquisition device (9) are electrically connected with the computer control system (1) respectively, the hydraulic pressure
Device (3), chemical solution autogamy device (4) are connected to by pipeline with the balancing gate pit (6), the balancing gate pit (6) and the number
Become measuring instrument (7) according to body is additionally provided between processing system (8)；
Before rock sample (601) is packed into the balancing gate pit (6), the μ CT scan device (5) is first passed through to the rock sample (601)
It is scanned, obtains the micropore structure of the rock sample (601) in a free state, described in the rock sample (601) loading
Behind balancing gate pit (6), then pass through the computer control system (1) the control temperature regulating device (2), hydraulic device (3) and chemistry
Solution autogamy device (4) rock sample (601) is loaded under the conditions of high/low temperature confining pressure, axis pressure, osmotic pressure and chemical solution into
Row testing permeability is studied, and is measured related data by body change measuring instrument (7) and is sent to the data processing system
(8), real time scan observation while by the μ CT scan device (5) to the rock sample (601) in the balancing gate pit (6) is carried out, and
It will be observed that data be sent to the data processing system (8), the data processing system becomes measuring instrument (7) to the body and surveys
The data obtained and the data of the μ CT scan device (5) scanning are handled, then all data are input to the data and are acquired
Device (9) simultaneously feeds back to the computer control system (1), finally by the computer control system (1) to these data
It is analyzed, and adjustment parameter continues to test, until obtaining seepage characteristic of rock under the conditions of multi- scenarios method.
2. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In the μ CT scan device (5) is used to carry out test observation to the rock sample with micron order pore scale.
3. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In the balancing gate pit (6) includes rock sample (601), rubber sleave (602), insulating tube (603) and multilayer successively outward from center
Aluminium foil (604)；
Balancing gate pit (6) both ends of the surface are respectively equipped with seepage flow entrance (605) and seepage exit (606).
4. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
There is full-automatic, semi-automatic and manual three kinds of control models in, the computer control system (1), for experimental condition into
The accurate independent control of row.
5. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In the temperature regulating device (2) includes temperature sensor (201), heater (202), refrigerator (203) and cooling water tank (204)；
The temperature sensor (201), heater (202) and refrigerator (203) are arranged in the balancing gate pit (6), are used for
The internal temperature in the balancing gate pit (6) is controlled, cooling water tank (204) setting becomes in the balancing gate pit (6) and the body surveys
Between amount instrument (7).
6. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In the hydraulic device (3) includes high-pressure osmosis pump (301), low-pressure permeability pump (302), high pressure sensor (3011), low pressure biography
Sensor (3021), confining pressure pump (304), axis press pump (305) and hydraulic control system (303)；
The high pressure sensor (3011) and the high-pressure osmosis pump (301) are connected to, the low pressure sensor (3021) and described
Low-pressure permeability pumps (302) connection；
High-pressure osmosis pump (301), low-pressure permeability pump (302), confining pressure pump (304) and the axis press pump (305) with it is described
Hydraulic control system (303) is electrically connected.
7. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In the chemical solution autogamy device (4) includes solution receptacle (401) and water tank (402)；
It is equipped with solution inlet (11) and taphole on the chemical solution receptacle (401) and the water tank (402)
(12), the chemical solution autogamy device (4) configures experiment by the solution receptacle (401) and the water tank (402)
The chemical solution of demand.
8. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In at least provided with next device on the pipeline：Solenoid valve (1001), flow sensor (1002), filter (1003),
Check valve (1004), manual governing valve (1005) and sink (1006)；
The solution receptacle (401) and the water tank (402) pass through pipeline and the solenoid valve being arranged on pipeline (1001)
It is connected to interflow with flow sensor (1002), is connected to again with the filter (1003) one end behind interflow；The filter
(1003) the other end respectively with the entrance of high-pressure osmosis pump (301) and low-pressure permeability pump (302) by pipeline and
Manual governing valve (1005) connection being arranged on pipeline；The high-pressure osmosis pump (301) and the low-pressure permeability pump (302)
Outlet is collaborated by pipeline, passes through pipeline and the manual governing being arranged on pipeline with the seepage flow entrance (605) again behind interflow
Valve (1005) is connected to flow sensor (1002).
9. a kind of microcosmic rock based on μ CT scan according to claim 1 couples infiltration experiment device, feature exists
In the body becomes measuring instrument (7), data processing system (8), data acquisition device (9) and the computer control system (1)
It is sequentially connected electrically.
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| CN201810133379.1A CN108362623A (en) | 2018-02-09 | 2018-02-09 | A kind of microcosmic rock coupling infiltration experiment device based on μ CT scan |
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| CN201810133379.1A CN108362623A (en) | 2018-02-09 | 2018-02-09 | A kind of microcosmic rock coupling infiltration experiment device based on μ CT scan |
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| CN112901573A (en) * | 2021-01-15 | 2021-06-04 | 四川大学 | Calibration platform temperature and pressure alternative control system and control method thereof |
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| CN113567322A (en) * | 2021-07-27 | 2021-10-29 | 安徽理工大学 | Test device and method for researching mechanical property of pore medium under water pressure |
| CN118090398A (en) * | 2024-04-17 | 2024-05-28 | 煤炭科学研究总院有限公司 | Triaxial composite physical field coupling loading scanning device and loading scanning method |
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| CN109270093B (en) * | 2018-11-12 | 2021-12-24 | 北京工业大学 | Auxiliary device of industrial CT scanner |
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| CN110439533A (en) * | 2019-07-22 | 2019-11-12 | 中国石油大学(北京) | Aquation data acquisition device, Hydrogeochemical anomaly field acquisition methods, apparatus and system |
| CN111103200A (en) * | 2019-12-05 | 2020-05-05 | 太原理工大学 | Real-time loading heating leaching test device in CT scanning process |
| CN111707699A (en) * | 2020-07-24 | 2020-09-25 | 贵州大学 | Device and method for observing cracking process of high-temperature rock caused by cooling in water |
| CN112229739A (en) * | 2020-09-30 | 2021-01-15 | 太原理工大学 | High-temperature high-pressure rock triaxial experimental device matched with CT (computed tomography) online scanning |
| CN112901573A (en) * | 2021-01-15 | 2021-06-04 | 四川大学 | Calibration platform temperature and pressure alternative control system and control method thereof |
| CN112904761A (en) * | 2021-01-15 | 2021-06-04 | 四川大学 | Calibration platform osmotic pressure control system and control method thereof |
| CN112904761B (en) * | 2021-01-15 | 2022-02-01 | 四川大学 | Calibration platform osmotic pressure control system and control method thereof |
| CN112901573B (en) * | 2021-01-15 | 2022-04-29 | 四川大学 | Calibration platform temperature and pressure alternative control system and control method thereof |
| CN113567322A (en) * | 2021-07-27 | 2021-10-29 | 安徽理工大学 | Test device and method for researching mechanical property of pore medium under water pressure |
| CN113567322B (en) * | 2021-07-27 | 2024-01-26 | 安徽理工大学 | Test device and method for researching mechanical properties of pore medium by water pressure |
| CN118090398A (en) * | 2024-04-17 | 2024-05-28 | 煤炭科学研究总院有限公司 | Triaxial composite physical field coupling loading scanning device and loading scanning method |
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