CN107884309A - A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation - Google Patents
A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation Download PDFInfo
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- CN107884309A CN107884309A CN201711251915.XA CN201711251915A CN107884309A CN 107884309 A CN107884309 A CN 107884309A CN 201711251915 A CN201711251915 A CN 201711251915A CN 107884309 A CN107884309 A CN 107884309A
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 28
- 238000011068 loading method Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 29
- 230000035699 permeability Effects 0.000 abstract description 15
- 238000002474 experimental method Methods 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 6
- 238000005065 mining Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 65
- 230000000694 effects Effects 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000004088 simulation Methods 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
- G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
- G01N7/10—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing diffusion of components through a porous wall and measuring a pressure or volume difference
-
- 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
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- Chemical & Material Sciences (AREA)
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- General Physics & Mathematics (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Fluid Mechanics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation, and it includes mixed gas feed system, and mixed gas feed system is connected with triaxial pressure system by pipeline；Pressure-loaded system is connected with triaxial pressure system by pipeline；Triaxial pressure system is connected with malleation regulating system by pipeline；Malleation regulating system is connected with flow measuring systems by pipeline；Solve and pure gas all may be only available for the experimental facilities of coal seam permeability for learning gas in the prior art, be not applied to carry out the experimental facilities of mixed gas coal seam permeability；And the outlet pressures of these pure gas Seepage Experiment equipment are all defaulted as atmospheric pressure this change with process of coal mining pore pressure and the technical problem such as are not inconsistent.
Description
Technical field
The invention belongs to gas management experimental apparatus technical field, more particularly to a kind of mixed gas condition lower outlet end is just
Three axle seepage apparatus of pressure.
Background technology
In Mine Production, mining operation destroys the balance of initial rock stress field and the balance of original gas pressure,
Form stress redistribution and the Gas Flow of digging surrounding rock body.During Methane Transport in Coal Seam, permeability is reflection
One of physical parameter of gas porous flow complexity in coal seam, meanwhile, permeability is also the important of gas porous flow mechanics and engineering
Parameter.Therefore, coal-bed gas permeability measuring method research be gas porous flow Mechanics Development key technology, and colliery peace
The key that full worker studies a series of mine safety problems such as coal and gas prominent is started with a little.It is rich in gas in coal body, and watt
This is that one kind contains CH4、CO2Etc. the gas of various mixed gases composition, therefore study influence ten of the mixed gas to coal permeability
Divide necessity, and pure gas all may be only available for the experimental facilities of coal seam permeability for learning gas in the prior art, do not have
There is the experimental facilities suitable for carrying out mixed gas coal seam permeability；And the port of export of these pure gas Seepage Experiment equipment
Pressure is all defaulted as atmospheric pressure, and the change of this and process of coal mining pore pressure is not inconsistent, it is therefore necessary to seepage flow equipment
The port of export carries out certain improvement to simulate the change of coal petrography situ extraction pore pressure.
The content of the invention：
The technical problem to be solved in the present invention：A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation are provided, with
Solution all may be only available for pure gas for learning gas to the experimental facilities of coal seam permeability in the prior art, not be applicable
In the experimental facilities for carrying out mixed gas coal seam permeability；And the outlet pressures of these pure gas Seepage Experiment equipment are all
It is defaulted as atmospheric pressure this change with process of coal mining pore pressure and the technical problem such as is not inconsistent.
Technical solution of the present invention：
A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation, it includes mixed gas feed system, gaseous mixture
Body feed system is connected with triaxial pressure system by pipeline；Pressure-loaded system is connected with triaxial pressure system by pipeline；
Triaxial pressure system is connected with malleation regulating system by pipeline；Malleation regulating system is connected with flow measuring systems by pipeline
Connect.
The triaxial pressure system is wrapped up by constant temperature system；The constant temperature system is heated water bath.
Mixed gas feed system includes the first air accumulator and the second air accumulator, and the first air accumulator leads to gas mixer
Cross pipeline connection, be sequentially installed with the pipeline of the first air accumulator and gas mixer the first pressure-reducing valve, first pressure table and
First switch valve；Second air accumulator is connected with gas mixer by pipeline, the pipe of the second air accumulator and gas mixer
The second pressure-reducing valve, second pressure gauge and second switch valve are connected with road.
Mixed gas feed system is with being sequentially installed with the 3rd pressure gauge and the 3rd decompression on the pipeline of triaxial pressure system
Valve.
Pressure-loaded system includes axle pressure oil pump and confined pressure oil pump；Axle pressure manual loading bar and axle are provided with axle pressure oil pump
Pressure pressure table；Confined pressure manual loading bar and confined pressure pressure gauge are provided with confined pressure oil pump.
Triaxial pressure system includes outer chamber, and confined pressure cavity is provided with outer chamber, shaft pressuring plate is provided with confined pressure cavity；
Axle pressure pipe mouth and the confined pressure mouth of pipe are provided with outer chamber, axle pressure pipe mouth is connected after passing through outer chamber with confined pressure cavity top；Air inlet
Pipe is connected through outer chamber with confined pressure cavity top, and escape pipe is connected with confined pressure cavity bottom；The confined pressure mouth of pipe passes through outer chamber, even
It is connected between outer chamber and confined pressure cavity.
Malleation regulating system includes positive pressure regulating valve and pressure gauge；Positive pressure regulating valve and pressure gauge are arranged on triaxial pressure system
On the escape pipe of system；The pressure gauge is precision pressure gauge.
Flow measuring systems are flowmeter；Check-valves is provided between flowmeter and malleation regulating system.
Beneficial effects of the present invention：
The present invention is connected two air accumulators by gas mixer so that gas mixing, in addition by improving triaxial pressure
Room can effectively prevent that oil seepage goes out outside shaft pressuring plate in confined pressure cavity, pass through the escape pipe connected in triaxial cell's end port
On be sequentially provided with positive pressure regulating valve, precision pressure gauge is so as to controlling the size of outlet pressure；The present invention can make coal petrography
The Seepage Experiment under different mixing gas conditions is carried out, and can be in different temperatures, axle pressure and confined pressure various factors coupling bar
Seepage Experiment under part, can in real simulation coal petrography recovery process mixed gas Seepage Experiment, the experimental provision simply easily grasps
Make, using effect is good, easy to spread；Solve in the prior art for learning gas to the experimental facilities of coal seam permeability all only
Pure gas is can be suitably used for, is not applied to carry out the experimental facilities of mixed gas coal seam permeability；And these pure gases
The outlet pressures of Seepage Experiment equipment are all defaulted as atmospheric pressure this change with process of coal mining pore pressure and are not inconsistent
Technical problem；The present invention can be used for simulating the Seepage Experiment of mixed gas in coal petrography recovery process, while to triaxial cell
Improvement is have also been made, is that coal bed gas extraction etc. provides skill to explore mechanism of action of each factor to gas porous flow to a deeper level
Art refers to.
Brief description of the drawings：
Fig. 1 schematic structural views of the invention；
Fig. 2 is triaxial pressure system structure diagram of the present invention.
In figure：The air accumulators of 1- first, the air accumulators of 2- second, 3- first pressures table, the pressure-reducing valves of 4- first, 5- second are depressurized
Valve, 6- second pressure gauges, 7- first switches valve, 8- second switches valve, 9- gas mixers, the pressure gauges of 10- the 3rd, 11-
Three pressure-reducing valves, 12- heated water baths, the improved triaxial cells of 13-, 14- precision pressure gauges, 15- positive pressure regulating valves, 16- non-returns
Valve, 17- flowmeters, 18- axles pressure oil pump, 19- confined pressures oil pump, 20- axles pressure manual loading bar, 21- confined pressure manual loadings bar, 22-
Axle pressure pressure table, 23- confined pressures pressure gauge, 24- axle pressure pipes mouth, 25- shaft pressuring plates, 26- outer chambers, the 27- confined pressures mouth of pipe, 28- confined pressures
Cavity, 29- air inlet pipe, 30- escape pipes.
Embodiment：
A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation, it includes mixed gas feed system, gaseous mixture
Body feed system is connected with triaxial pressure system by pipeline；Pressure-loaded system is connected with triaxial pressure system by pipeline；
Triaxial pressure system is connected with malleation regulating system by pipeline；Malleation regulating system is connected with flow measuring systems by pipeline
Connect.
The triaxial pressure system is wrapped up by constant temperature system；The constant temperature system is heated water bath 12.
Mixed gas feed system includes the first air accumulator 1 and the second air accumulator 2, and the first air accumulator 1 fills with gas mixing
Put 9 to connect by pipeline, the first air accumulator 1 on the pipeline of gas mixer 9 with being sequentially installed with the first pressure-reducing valve 4, first
Pressure gauge 3 and first switch valve 7；Second air accumulator 2 is connected with gas mixer 9 by pipeline, the second air accumulator 2 and gas
The second pressure-reducing valve 5, second pressure gauge 6 and second switch valve 8 are connected with the pipeline of mixing arrangement 9.
Mixed gas feed system subtracts with being sequentially installed with the 3rd pressure gauge 10 and the 3rd on the pipeline of triaxial pressure system
Pressure valve 11.
Pressure-loaded system includes axle pressure oil pump 18 and confined pressure oil pump 19；Axle pressure manual loading is provided with axle pressure oil pump 18
Bar 20 and axle pressure pressure table 22；Confined pressure manual loading bar 21 and confined pressure pressure gauge 23 are provided with confined pressure oil pump 19.
Triaxial pressure system includes outer chamber 26, and confined pressure cavity 28 is provided with outer chamber 26, is set in confined pressure cavity 28
There is shaft pressuring plate 25；Be provided with axle pressure pipe mouth 24 and the confined pressure mouth of pipe 27 on outer chamber 26, axle pressure pipe mouth 24 pass through after outer chamber 26 with
The top of confined pressure cavity 28 is connected；Air inlet pipe 29 is connected through outer chamber 26 with the top of confined pressure cavity 28, escape pipe 30 and confined pressure chamber
The bottom of body 28 is connected；The confined pressure mouth of pipe 27 passes through outer chamber 26, is connected between outer chamber 26 and confined pressure cavity 28.
Malleation regulating system includes positive pressure regulating valve 15 and pressure gauge 14；Positive pressure regulating valve 15 and pressure gauge 14 are arranged on three
On the escape pipe 30 of axle pressure system；The pressure gauge 14 is precision pressure gauge.
Flow measuring systems are flowmeter 17；Check-valves 16 is provided between flowmeter 17 and malleation regulating system.
In order to which those skilled in the art further appreciate that technical solution of the present invention, herein with reference to attached Fig. 1 and 2 to skill of the present invention
Art scheme carries out refinement explanation：
The present invention includes triaxial pressure system, pressure-loaded system, constant temperature system, mixed gas feed system, malleation regulation system
System, flow measuring systems；Described triaxial pressure system includes improved triaxial cell 13, and the composition of triaxial cell 13 includes
Outer chamber 26, axle pressure pipe mouth 24 and the confined pressure mouth of pipe 27 are provided with outer chamber 26, axle pressure pipe mouth 24, the confined pressure mouth of pipe 27 pass through exocoel
Body 26 is connected inside triaxial cell 13.The inside of outer chamber 26 is provided with shaft pressuring plate 25 and confined pressure cavity 28, and shaft pressuring plate 25, which is located at, to be enclosed
Press inside cavity 28, it is possible to prevente effectively from oil seepage goes out outside shaft pressuring plate 25 in confined pressure cavity 28 in loading procedure.Air inlet pipe 29
It is connected through outer chamber 26 with the top of confined pressure cavity 28, escape pipe 30 is connected with the bottom of confined pressure cavity 28；Described pressure-loaded
System includes axle pressure oil pump 18 and confined pressure oil pump 19, can be respectively to triaxial cell 13 by axle pressure oil pump 18 and confined pressure oil pump 19
Inside applies axle pressure and confined pressure in prescribed limit；Described constant temperature system is heated water bath 12, can be provided for experiment different
Temperature is to simulate situ extraction situation；Described mixed gas feed system is mixed by the first air accumulator 1, the second air accumulator 2, gas
Attach together and put 9 compositions；Described malleation regulating system includes positive pressure regulating valve 15 and pressure gauge 14, and pressure gauge 14 is selected in the present invention
Precision pressure gauge 14, the size of outlet pressure can be controlled by adjusting positive pressure regulating valve 15；Flow measuring systems include flow
Meter 17, gas flow can be measured by flowmeter 17, so as to which permeability be calculated by formula.First air accumulator 1 passes through
It is connected provided with the first pressure-reducing valve 4, first pressure table 3 with the connecting tube of first switch valve 7 with gas mixer 9, the second gas storage
With being additionally provided with the second pressure-reducing valve 5, second pressure gauge 6 and second switch valve 8 in the connecting tube of gas mixer 9, gas mixes tank 2
Attach together and put 9 by the pressure-reducing valve 11 of band the 3rd and the connecting tube of the 3rd pressure gauge 10 and the front port phase of improved triaxial cell 13
Even, improved triaxial cell 13 is placed in water bath with thermostatic control 12 and outer chamber 26 is logical with axle pressure oil pump 18 and confined pressure oil pump 19 respectively
Cross connecting tube connection, include respectively in axle pressure oil pump 18 and confined pressure oil pump 19 axle pressure manual loading bar 20, axle pressure pressure table 22 with
Confined pressure manual loading bar 21, confined pressure pressure gauge 23.On the escape pipe 30 that the improved end port of triaxial cell 13 is connected successively
Provided with positive pressure regulating valve 15, pressure gauge 14 from precision pressure gauge 14, check-valves 16 and flowmeter 17.
In use, standard-sized coal body test specimen is arranged on to the confined pressure cavity 28 in triaxial cell 13 on request first
It is interior, by the temperature of water bath with thermostatic control 12 be set to experiment desirable value to simulate ground end temperature conditions, by adjustment axis pressure oil pump 18 with
Axle pressure manual loading bar 20 and the confined pressure manual loading bar 21 of confined pressure oil pump 19, according to axle pressure pressure table 22, confined pressure pressure gauge 23
Reading be adjustable to the set axle pressure of experiment and confined pressure so as to simulate coal in stress state suffered by ground end, then open first
Switch valve 7, second switch valve 8, adjust the first pressure-reducing valve 4 and the second pressure-reducing valve 5 and according to first pressure table 3 and second pressure gauge
6 readings are to testing set value, by adjusting the 3rd pressure-reducing valve 11 and according to the 3rd pressure gauge 10 to adjust mixed gas
Gas pressure closes positive pressure regulating valve 15 and experiment coal sample is existed to simulate influence of the mixed gas gas pressure to coal permeability
Mixed gas effect is lower to adsorb twenty four hours, and positive pressure regulating valve 15 is adjusted after twenty four hours to experiment desirable value to simulate coal
The change of coal pore pressure in rock recovery process, flow value is recorded after the stable reading of flowmeter 17, is calculated finally by formula
Go out coal permeability value under the couplings such as mixed gas effect lower different temperatures, axle pressure, confined pressure.
Claims (8)
1. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation, it includes mixed gas feed system, and it is special
Sign is：Mixed gas feed system is connected with triaxial pressure system by pipeline；Pressure-loaded system and triaxial pressure system
Connected by pipeline；Triaxial pressure system is connected with malleation regulating system by pipeline；Malleation regulating system and flow measurement system
System is connected by pipeline.
2. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 1, its feature exist
In：The triaxial pressure system is wrapped up by constant temperature system；The constant temperature system is heated water bath（12）.
3. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 1, its feature exist
In：Mixed gas feed system includes the first air accumulator（1）With the second air accumulator（2）, the first air accumulator（1）Filled with gas mixing
Put（9）Connected by pipeline, the first air accumulator（1）With gas mixer（9）Pipeline on be sequentially installed with the first pressure-reducing valve
（4）, first pressure table（3）With first switch valve（7）；Second air accumulator（2）With gas mixer（9）Connected by pipeline,
Second air accumulator（2）With gas mixer（9）Pipeline on be connected with the second pressure-reducing valve（5）, second pressure gauge（6）With second
Switch valve（8）.
4. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 1, its feature exist
In：Mixed gas feed system on the pipeline of triaxial pressure system with being sequentially installed with the 3rd pressure gauge（10）With the 3rd pressure-reducing valve
（11）.
5. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 1, its feature exist
In：Pressure-loaded system includes axle pressure oil pump（18）With confined pressure oil pump（19）；Axle pressure oil pump（18）On be provided with axle pressure manually plus
Carry bar（20）With axle pressure pressure table（22）；Confined pressure oil pump（19）On be provided with confined pressure manual loading bar（21）With confined pressure pressure gauge
（23）.
6. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 1, its feature exist
In：Triaxial pressure system includes outer chamber（26）, outer chamber（26）Inside it is provided with confined pressure cavity（28）, confined pressure cavity（28）Inside set
It is equipped with shaft pressuring plate（25）；In outer chamber（26）It is provided with axle pressure pipe mouth（24）With the confined pressure mouth of pipe（27）, axle pressure pipe mouth（24）Pass through
Outer chamber（26）Afterwards with confined pressure cavity（28）Top is connected；Air inlet pipe（29）Through outer chamber（26）With confined pressure cavity（28）Top
It is connected, escape pipe（30）With confined pressure cavity（28）Bottom is connected；The confined pressure mouth of pipe（27）Through outer chamber（26）, it is connected to outer chamber
（26）With confined pressure cavity（28）Between.
7. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 6, its feature exist
In：Malleation regulating system includes positive pressure regulating valve（15）And pressure gauge（14）；Positive pressure regulating valve（15）And pressure gauge（14）Installation
In the escape pipe of triaxial pressure system（30）On；The pressure gauge（14）For precision pressure gauge.
8. a kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation according to claim 1, its feature exist
In：Flow measuring systems are flowmeter（17）；Flowmeter（17）Check-valves is provided between malleation regulating system（16）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251915.XA CN107884309A (en) | 2017-12-01 | 2017-12-01 | A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711251915.XA CN107884309A (en) | 2017-12-01 | 2017-12-01 | A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation |
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|---|---|
| CN107884309A true CN107884309A (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711251915.XA Pending CN107884309A (en) | 2017-12-01 | 2017-12-01 | A kind of three axle seepage apparatus of mixed gas condition lower outlet end malleation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870399A (en) * | 2019-04-02 | 2019-06-11 | 贵州大学 | A kind of three axis seepage apparatus and operating method of changeable mixed gas pH value |
| CN109991149A (en) * | 2019-05-08 | 2019-07-09 | 贵州大学 | A kind of three axis seepage apparatus and operating method changing mixed gas density |
| CN110018106A (en) * | 2019-05-08 | 2019-07-16 | 贵州大学 | Change the three axis seepage apparatus of outlet end negative pressure and operating method of mixed gas temperature |
| CN110018107A (en) * | 2019-05-08 | 2019-07-16 | 贵州大学 | A kind of the isothermal adsorption device and operating method of changeable mixed gas viscosity |
| CN110160932A (en) * | 2019-06-03 | 2019-08-23 | 西南石油大学 | A kind of oil-water relative permeability curve test device and test method |
| CN110160940A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | A kind of three axis seepage apparatus and application method of externally-applied magnetic field |
| CN110160939A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | A kind of three axis seepage apparatus and operating method changing mixed gas electric field and humidity |
| CN113358480A (en) * | 2021-05-13 | 2021-09-07 | 太原理工大学 | Coal rock mechanical test device and test method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870399A (en) * | 2019-04-02 | 2019-06-11 | 贵州大学 | A kind of three axis seepage apparatus and operating method of changeable mixed gas pH value |
| CN109991149A (en) * | 2019-05-08 | 2019-07-09 | 贵州大学 | A kind of three axis seepage apparatus and operating method changing mixed gas density |
| CN110018106A (en) * | 2019-05-08 | 2019-07-16 | 贵州大学 | Change the three axis seepage apparatus of outlet end negative pressure and operating method of mixed gas temperature |
| CN110018107A (en) * | 2019-05-08 | 2019-07-16 | 贵州大学 | A kind of the isothermal adsorption device and operating method of changeable mixed gas viscosity |
| CN110160932A (en) * | 2019-06-03 | 2019-08-23 | 西南石油大学 | A kind of oil-water relative permeability curve test device and test method |
| CN110160932B (en) * | 2019-06-03 | 2023-12-15 | 西南石油大学 | Oil-water relative permeability curve testing device and testing method |
| CN110160940A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | A kind of three axis seepage apparatus and application method of externally-applied magnetic field |
| CN110160939A (en) * | 2019-07-04 | 2019-08-23 | 贵州大学 | A kind of three axis seepage apparatus and operating method changing mixed gas electric field and humidity |
| CN113358480A (en) * | 2021-05-13 | 2021-09-07 | 太原理工大学 | Coal rock mechanical test device and test method |
| CN113358480B (en) * | 2021-05-13 | 2022-08-05 | 太原理工大学 | Coal rock mechanical test device and test method |
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