CN108414419A - A kind of test of three-axis penetration rate and CO2Displacement simulation experimental rig - Google Patents
A kind of test of three-axis penetration rate and CO2Displacement simulation experimental rig Download PDFInfo
- Publication number
- CN108414419A CN108414419A CN201810097759.4A CN201810097759A CN108414419A CN 108414419 A CN108414419 A CN 108414419A CN 201810097759 A CN201810097759 A CN 201810097759A CN 108414419 A CN108414419 A CN 108414419A
- Authority
- CN
- China
- Prior art keywords
- gas
- pressure
- valve
- cylinder
- holding unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 238000004088 simulation Methods 0.000 title claims abstract description 25
- 230000035515 penetration Effects 0.000 title claims abstract description 16
- 239000011435 rock Substances 0.000 claims abstract description 33
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 236
- 238000011144 upstream manufacturing Methods 0.000 claims description 46
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 41
- 239000001307 helium Substances 0.000 claims description 23
- 229910052734 helium Inorganic materials 0.000 claims description 23
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 17
- 230000004087 circulation Effects 0.000 claims description 11
- 238000005485 electric heating Methods 0.000 claims description 8
- 239000011888 foil Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 9
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 25
- 230000035699 permeability Effects 0.000 abstract description 11
- 238000010998 test method Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 17
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 238000013401 experimental design Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 244000294611 Punica granatum Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229960004424 carbon dioxide Drugs 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Dispersion Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of test of three-axis penetration rate and CO2Displacement simulation experimental rig, belong to coal-bed gas exploitation field, model system (1), gas control system (2), temperature control system (3), three axis loading systems (4), pumped vacuum systems (5), gaseous sample acquisition system (6) and electrical control and monitoring system；The gas that is for experiment is carried by gas control system (2), by temperature control system (3) Control experiment temperature, apply confining pressure and axis pressure by three axis loading systems (4), gaseous sample is acquired by gaseous sample acquisition system (6) and gas component is analyzed, by electrical control and monitoring system monitoring test.The device can realize CO in laboratory2The simulation test procedure of displacement, and the permeability of rock sample can be calculated by measuring attenuation data of the pressure pulse of rock sample arrival end application in rock sample.Present apparatus temperature-controlled precision is high, temperature fluctuation is small, is convenient for control, is easy installation, is safe and reliable.
Description
Technical field
The present invention relates to a kind of tests of permeability and displacement simulation experimental rig, are surveyed more particularly to a kind of three-axis penetration rate
Examination and CO2Displacement simulation experimental rig belongs to coal-bed gas exploitation field.
Background technology
Coal bed gas (coal mine gas), shale gas are the novel high effect cleaning energy.Coal bed gas and shale gas exploitation are to alleviating
China's petroleum resources anxiety present situation, mitigation mine disaster degree, reduction greenhouse gas emission etc. are of great significance, and are that China increases
The important channel of strong energy self -support ability and adjusting and optimizing energy resource structure.China's coal bed gas, shale gas are resourceful,
2000m reaches 36.81 × 10 with shallow coal bed gas reserves12m3, shale gas reserves are up to 30 × 1012m3More than, potentiality to be exploited is huge
Greatly.However China's coal bed gas, shale gas utilization rate are relatively low, a key factor for restricting its exploitation is coal seam and shale category
In tight stratum, permeability is totally relatively low, and China's geological tectonic conditions are complicated in addition, and coal bed gas, shale gas are difficult to effectively be produced
Go out.
Due to competitive Adsorption advantage, CO2Injection coal seam can effectively replace or displacement coal seam CH4, become new coal bed gas reinforcing
Development scheme.Coal seam CO2Geological storage and CH4Enhanced recovery (CO2- ECBM, i.e. CO2Geological Storage-
Enhanced Coal Bed Methane Recovery) technology melts reduction of greenhouse gas discharge and is integrated with new energy development, by
The whole world is paid high attention to.CO2Geological reservoir is a complicated problem in science, CO2Charge velocity seals mechanism, available capacity, oil up for safekeeping
The research of the problem in science such as gas productive potentialities can be that country implements CO in next step2Geological storage Project And Exploring provides scientific basis,
Push China CO2The formation and development of geological storage technology, serving country mitigation emission reduction and new energy development strategy.Therefore, coal
Layer CO2Geological storage validity mechanism is still China current generation CO2-Problem in science urgently to be resolved hurrily ECBM.
Existing laboratory carries out CO2Displacement or displacement coal seam CH4And the experimental rig and method of test rock permeability,
For tight rocks such as coal seam and shale, testing efficiency is relatively low, experiment process is easily influenced by ambient temperature, test result error phase
To larger.Therefore, a kind of permeability test and CO suitable for efficiently and accuratelies of tight rocks such as coal seam and shale of design2Displacement
Simulation test device has important theory and actual production directive significance.
Invention content
To solve the above-mentioned problems, a kind of three-axis penetration rate test of present invention offer and CO2Displacement simulation experimental rig, should
Device can realize CO in experiment indoor simulation deep fractures high temperature and high pressure environment2The simulation test procedure of displacement, and can lead to
Attenuation data of the pressure pulse for measuring the application of rock sample arrival end in rock sample is crossed, the permeability of rock sample, test effect is calculated
Rate is high, and measuring result error is small.This experimental rig temperature-controlled precision is high, corrosion resistance is strong, temperature fluctuation is small, uniformity is good, number
According to show it is accurate and intuitive, compact-sized, convenient for control, be easy installation, it is easy to operate, safe and reliable, have preferable practicality
Property.
In order to achieve the above object, the test of this three-axis penetration rate and CO2 displacement simulation experimental rigs, including：Model system,
Gas control system, temperature control system, three axis loading systems, pumped vacuum systems, gaseous sample acquisition system and electrical control
And monitoring system；
The model system includes core holding unit, upstream reference cylinder, downstream reference cylinder, strain testing instrument and multiple controls
The valve of gas processed circulation, the entrance of the core holding unit sample room is connected to upstream reference cylinder entrance, exports and downstream
It is connected to reference to cylinder entrance；The outlet of the outlet and downstream reference cylinder of the upstream reference cylinder, in upstream reference cylinder under
Trip is equipped with differential pressure pickup between referring to cylinder；Rock sample periphery is equipped with several foil gauges, and foil gauge lead is from core holding unit
End stretch out and connect with strain testing instrument electric signal；It is connected with pressure sensor one, downstream on the upstream reference cylinder
With reference to pressure sensor two is connected on cylinder, pressure sensor three is connected on core holding unit sample room；
The gas control system includes gas cylinder, pressure reducing valve, gas flowmeter two, water bath with thermostatic control, air compressor machine, gas
The valve of body booster pump and multiple control gas circulations, the gas cylinder includes helium gas cylinder, CO 2 high pressure
Gas cylinder and methane gas cylinder, the pressure reducing valve include pressure reducing valve one, pressure reducing valve two and pressure reducing valve three；Helium gas cylinder,
CO 2 high pressure gas cylinder and methane gas cylinder are connect with the air inlet that gas boosting pumps, and connecting line passes through water bath with thermostatic control；
Pressure reducing valve one, pressure reducing valve two and the pressure reducing valve three is respectively provided at helium gas cylinder, CO 2 high pressure gas cylinder and methane
On the pipeline of gas cylinder exit, gas flowmeter two is located on three main pipe rails between pressure reducing valve and water bath with thermostatic control；It is described
Air compressor machine connected with gas increasing pump, gas outlet and core holding unit sample chamber inlet and the upstream reference cylinder of gas boosting pump
Entrance connects；
The temperature control system includes wrapping up the electrical heating of core holding unit, upstream reference cylinder and downstream reference cylinder
Set, electric heating cover is interior to be equipped with temperature sensor；
The three axis loading systems include hydraulic servo instrument and ring pressure tracking pump, and the hydraulic servo instrument passes through pipeline
It is connect with the pressure head of core holding unit upper end, connecting line is equipped with pressure sensor five；Ring pressure tracking pump passes through pipeline and rock
The annular space of heart clamp holder is connected to, and connecting line is equipped with pressure sensor four；
The gaseous sample acquisition system include gas chromatograph, gas flowmeter five, gas-liquid separator, counterbalance valve,
Pressure sensor six and the valve of multiple control gas circulations, the outlet of the sample room of the core holding unit by pipeline with
Gas chromatograph connects, and being equipped with the pressure successively on the direction of gas chromatograph from core holding unit on connecting line passes
Sensor six, counterbalance valve, gas-liquid separator and gas flow meter five；
The pumped vacuum systems includes vacuum pump, between the vacuum pump and gas flowmeter five and gas chromatograph
Pipeline connection；Pipeline connection of the vacuum pump also between upstream reference cylinder and downstream reference cylinder；
The electrical control and monitoring system, including industrial personal computer, display and pick-up instrument, high-speed camera, relay
Protection and alarm circuit and electric control circuit, power distribution circuit and control software.
Further, the gas control system further includes check valve, and the check valve is located at gas flowmeter two
On pipeline between water bath with thermostatic control, gas outlet is towards water bath with thermostatic control；
Further, the gas control system further includes one and gas flow meter three of gas flowmeter, respectively with gas
Flowmeter body two is arranged in parallel；
Further, the gaseous sample acquisition system further includes four and gas flow meter six of gas flowmeter, respectively
It is arranged in parallel with gas flowmeter five；
Further, the gaseous sample acquisition system further includes being located between gas-liquid separator and gas flow meter five
Drier；
Further, the pressure sensor three is four, along between sample room axis direction etc. in core holding unit
Away from setting；
Further, the precision of pressure sensor all in device and differential pressure pickup be 0.05%, sensitivity be ±
0.05F.S；The temperature-controlled precision of water bath with thermostatic control is ± 0.1 DEG C, and operating temperature is 150 DEG C；Ring pressure tracks the flow accuracy pumped
The axial load precision of 0.001ml/min, hydraulic servo instrument are ± 1%；The measurement accuracy of strain testing instrument is 0.2% ± 2 μ ε；
The measurement accuracy of temperature sensor is 0.1 DEG C；The pressure ratio of gas boosting pump is 100:1；
Further, the pipeline in whole device uses 316L pipelines.
The present invention carries the methane gas being for experiment, helium and CO to model system by gas control system2, in gas
Before gas increasing pump, first gas is preheated by water bath with thermostatic control, especially CO2, by first heat afterwards pressurize after i.e.
Produce supercritical CO2, the condition of the gaseous state of displacement experiment had both been met, the company between pipeline and equipment is in turn simplified
It connects；The temperature residing for core holding unit is controlled by temperature control system and keeps temperature constant state；By in three axis loading systems
Hydraulic servo instrument axis pressure is applied to core holding unit, tracking pump is pressed to apply confining pressure to core holding unit sample room by ring；Gas
Body control system, temperature control system and three axis loading systems ensure that the environment in core holding unit residing for rock sample as much as possible
It is consistent with the geological environment of deep fractures.
The present invention also vacuumizes device before on-test by pumped vacuum systems, avoids air and other
Impurity has an impact the accuracy of experiment；The gas component after reaction is analyzed by gaseous sample acquisition system, electricity
Gas control system and monitoring system can make the remote operating operation test device of testing crew and Control experiment flow, to pressure vessel outside
State carries out video monitoring, and can shoot, record experiment process, being capable of safeguards system safety.
The model system of the present invention includes mainly that core holding unit and upstream, two, downstream refer to cylinder, realizes experiment dress
The multifunction set：Both one can be used and refers to cylinder, realized and traditional by level pressure difference or constant flow or measure pressure drop
Method realizes CO2Displacement simulation and permeability test；Two can also be used and refer to cylinder, by measuring the application of rock sample arrival end
Attenuation data of the pressure pulse in rock sample realizes CO2Displacement simulation and permeability test, can by test battery device,
Same experiment is realized using different methods or is measured, obtained data are mutually confirmed, and keep experiment more accurate.
The all technical of the present invention is up to state standards, and high with temperature-controlled precision, and corrosion resistance is strong, thermal balance
Time is short, and temperature fluctuation is small, and uniformity is good, and it is accurate, intuitive that data are shown, compact-sized, it is durable the features such as.The present invention
Performance has the features such as practicability, be convenient for control, be easy installation, be easy to operate, safe and reliable in all respects on the basis of stablizing.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
In figure：1, model system, 1.1, core holding unit, 1.21, upstream reference cylinder, 1.22, downstream reference cylinder, 1.31,
Pressure sensor one, 1.32, pressure sensor two, 1.33, pressure sensor three, 1.4, differential pressure pickup, 1.5, strain testing
Instrument, 1.61, valve one, 1.62, valve two, 1.63, valve three, 1.64, valve four, 1.65, valve five, 2, gas control system
System, 2.11, helium gas cylinder, 2.12, CO 2 high pressure gas cylinder, 2.13, methane gas cylinder, 2.21, pressure reducing valve one,
2.22, pressure reducing valve two, 2.23, pressure reducing valve three, 2.31, gas flowmeter one, 2.32, gas flowmeter two, 2.33, gas flow
Meter three, 2.4, check valve, 2.5, water bath with thermostatic control, 2.6, air compressor machine, 2.7, gas boosting pump, 2.81, valve six, 2.82, valve
Seven, 2.83, valve eight, 2.84, valve nine, 2.85, valve ten, 2.86, valve 11,2.87, valve 12,2.88, valve
13,2.89, valve 14,2.90, valve 15,2.91, valve 16,3, temperature control system, 4, three axis loading systems,
4.1, hydraulic servo instrument, 4.2, ring pressure tracking pump, 4.31, pressure sensor four, 4.32, pressure sensor five, 5, vacuumize and be
System, 5.1, vacuum pump, 5.21, valve 17,5.22, valve 18,6, gaseous sample acquisition system, 6.1, gas chromatograph,
6.21, gas flowmeter four, 6.22, gas flowmeter five, 6.23, gas flowmeter six, 6.3, drier, 6.4, gas-liquid separation
Device, 6.5, counterbalance valve, 6.6, pressure sensor six, 6.71, valve 19,6.72, valve 20,6.73, valve 21,
6.74, valve 22,6.75, valve 23,6.76, valve 24,6.77, valve 25,6.78, valve 20
Six.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of three-axis penetration rate test and CO2Displacement simulation experimental rig, including：Model system 1, gas
Control system 2, temperature control system 3, three axis loading systems 4, pumped vacuum systems 5, gaseous sample acquisition system 6 and electrical control
And monitoring system；
The model system 1 includes core holding unit 1.1, upstream reference cylinder 1.21, downstream reference cylinder 1.22, strain survey
The valve of instrument 1.5 and multiple control gas circulations is tried, entrance (lower end) and the upstream of 1.1 sample room of core holding unit are joined
Examine the connection of 1.21 entrance of cylinder, outlet is connected to 1.22 entrance of downstream reference cylinder；The outlet of the upstream reference cylinder 1.21 is under
Trip is equipped with differential pressure pickup 1.4 with reference to the outlet of cylinder 1.22 between upstream reference cylinder 1.21 and downstream reference cylinder 1.22,
For surveying two with reference to the pressure difference between cylinder；Rock sample periphery is parallel to its axis and around perpendicular to its axis equipped with several
Foil gauge (being not drawn into figure), the strain for measuring rock sample, foil gauge lead stretches out simultaneously from the end of core holding unit 1.1
It is connect with 1.5 electric signal of strain testing instrument；Pressure sensor 1, downstream ginseng are connected on the upstream reference cylinder 1.21
It examines and is connected with pressure sensor 2 1.32 on cylinder 1.22, core holding unit is connected with pressure sensor 3 1.33 on 1.1 sample room,
Pressure sensor 1, pressure sensor 2 1.32 and pressure sensor 3 1.33 are respectively used to measure upstream reference cylinder
1.21, downstream reference cylinder 1.22 and the indoor pressure of sample；Valve 1 is located on 1.21 inlet pipeline of upstream reference cylinder,
Gas is injected in cylinder 1.21 for controlling upstream to refer to；Valve 2 1.62 is located at the entrance of sample room in core holding unit 1.1
Locate on pipeline, injects gas into sample room for controlling；Valve 3 1.63 is located on the pipeline of sample room exit, for controlling
Whether the indoor gas of sample flows out；Valve 4 1.64 is located on 1.22 inlet pipeline of downstream reference cylinder, for controlling gas
Whether circulation in cylinder 1.22 is downstream referred to；Valve 5 1.65, which is located between upstream reference cylinder 1.21 and downstream reference cylinder 1.22, to be connected
On logical pipeline, for controlling whether two mutually circulated with reference to the gas between cylinder.The indoor maximum working pressure (MWP) of sample can
Reach 50MPa, meets the needs of simulation deep fractures pressure.
The gas control system 2 include gas cylinder, pressure reducing valve, gas flowmeter 2 2.32, water bath with thermostatic control 2.5,
The valve of air compressor machine 2.6, gas boosting pump 2.7 and multiple control gas circulations, the gas cylinder includes helium high pressure gas
Bottle 2.11, CO 2 high pressure gas cylinder 2.12 and methane gas cylinder 2.13, for carrying the helium that is for experiment, two inside device
Carbonoxide and methane, the pressure reducing valve include pressure reducing valve 1, pressure reducing valve 2 2.22 and pressure reducing valve 3 2.23；Helium high pressure
Gas cylinder 2.11, CO 2 high pressure gas cylinder 2.12 and methane gas cylinder 2.13 are connect with the air inlet of gas boosting pump 2.7, even
It takes over road and passes through water bath with thermostatic control 2.5, water bath with thermostatic control 2.5 is used for the preheating of gas, especially to CO2Preheating, makes it be more easy to
Form supercriticality, i.e. CO2Its temperature is set to rise to supercritical temperature or more first before entering gas increasing pump 2.7 and pressurizeing,
After gas increasing pump 2.7 is forced into supercritical pressure, supercritical CO will be formed2；The pressure reducing valve 1, decompression
Valve 2 2.22 and pressure reducing valve 3 2.23 are respectively provided at helium gas cylinder 2.11, CO 2 high pressure gas cylinder 2.12 and methane high pressure
On 2.13 exit pipeline of gas cylinder, the pressure for adjusting the gas in the pipeline of gas cylinder exit, gas flowmeter two
2.32 are located on the main pipe rail between three pressure reducing valves and water bath with thermostatic control 2.5；The air compressor machine 2.6 and gas increasing pump 2.7
The gas outlet of connection, gas boosting pump 2.7 is connect with 1.1 sample chamber inlet of core holding unit and 1.21 entrance of upstream reference cylinder,
Air compressor machine 2.6 provides power to gas increasing pump 2.7, and high-potting gas is provided for being gas boosting, and to model system 1
Body；Valve 6 2.81, valve 7 2.82 and valve 8 2.83 are respectively provided at helium gas cylinder 2.11, CO 2 high pressure gas cylinder
2.12 and 2.13 exit of methane gas cylinder, the supply for controlling three kinds of high pressure gas；Valve 10 and valve 13
2.88 are respectively provided on 2 2.32 inlet and outlet pipeline of gas flowmeter, are accurately controlled for what is circulated to gas；Valve
16, which are located at gas boosting, pumps on the main pipe rail that 2.7 gas outlets are connect with model system 1, as control gas control system
The total valve that gas circulates between 2 and model system 1；Valve 15 is located at gas boosting and pumps 2.7 gas outlets and air company
On logical pipeline, when necessary, release for the quick of gas in entire experimental rig, to cope with issuable danger.
The temperature control system 3 includes package core holding unit 1.1, upstream reference cylinder 1.21 and downstream reference cylinder
1.22 electric heating cover, electric heating cover is interior to be equipped with temperature sensor (being not drawn into figure)；During experiment, by electric heating cover to dress
The temperature set is controlled, and is monitored to test temperature by temperature sensor, after the test, is realized by cross-ventilation cold
But.The attainable maximum temperature of temperature control system is 180 DEG C, and operating temperature is 150 DEG C, and temperature-controlled precision is ± 0.1 DEG C.
The three axis loading systems 4 include hydraulic servo instrument 4.1 and ring pressure tracking pump 4.2, the hydraulic servo instrument
4.1 are connect by pipeline with the pressure head of 1.1 upper end of core holding unit, and connecting line is equipped with pressure sensor 5 4.32；Ring pressure
Tracking pump 4.2 is connected to by pipeline with the annular space of core holding unit, and connecting line is equipped with pressure sensor 4 4.31；Liquid
It presses servo instrument 4.1 to pressurize the pressure head of 1.1 upper end of core holding unit, forms the axis pressure of sample room；Ring pressure tracking pump 4.2 is for controlling
Pressure in 1.1 annular space of core holding unit processed；Pressure sensor 4 4.31 and pressure sensor 5 4.32 are for measuring phase
Answer the pressure in pipeline.
The gaseous sample acquisition system 6 includes gas chromatograph 6.1, gas flowmeter 5 6.22, gas-liquid separator
6.4, the valve of counterbalance valve 6.5, pressure sensor 6 6.6 and multiple control gas circulations, the sample of the core holding unit 1.1
The outlet of product room is connect by pipeline with gas chromatograph 6.1, from core holding unit 1.1 to gas chromatograph on connecting line
The pressure sensor 6 6.6, counterbalance valve 6.5,6.4 and gas flow meter of gas-liquid separator are equipped on 6.1 direction successively
5 6.22；Valve 19 is located on 6.1 inlet pipeline of gas chromatograph, for whether controlling gas to gas chromatograph
6.1 flowing into；Valve 24 and valve 21 are respectively provided at 5 6.22 entrance and exit pipeline of gas flowmeter
On, the circulation for controlling gas；Valve 26 is located at the bottom of gas-liquid separator 6.4, is isolated for discharging
Liquid when necessary can also release to the gas in device.The gas flowed out from sample room is adjusted by counterbalance valve 6.5
After pressure, gas-liquid separation is carried out by gas-liquid separator, the gas after separation enters gas chromatograph 6.1 and carries out gas componant
Detection, during this, 6 6.6 and gas flow meter 5 6.22 of pressure sensor respectively the pressure to gas in pipeline and flow velocity into
Row monitoring, obtained data are used for the data processing in later stage to obtain the test result of correlation test.
The pumped vacuum systems 5 includes vacuum pump 5.1, and the vacuum pump 5.1 and gas flowmeter 5 6.22 are gentle
Pipeline connection between chromatography 6.1, connecting pipeline are equipped with valve 17；Vacuum pump 5.1 also with upstream reference cylinder
Pipeline connection between 1.21 and downstream reference cylinder 1.22, connecting pipeline are equipped with valve 18.Vacuum pump 5.1 is for arranging
Air in empty entire experimental rig so that reach the state of vacuum in experimental rig as far as possible, guarantee test data it is accurate
Property and reliability.
The electrical control and monitoring system, including industrial personal computer, display and pick-up instrument, high-speed camera, relay
The electrical equipments such as protection and alarm circuit and electric control circuit, power distribution circuit and control software, major function are：To electrical
The distribution of equipment, the functions such as the safeguard protection and alarm of system；Pressure, the temperature etc. of entire experiment simulator are adopted
Collection, processing and display；Video monitoring is carried out to state outside experimental rig, with safeguards system safety.
The gas control system 2 further includes check valve 2.4, and the check valve 2.4 is located at gas flowmeter two
On pipeline between 2.32 and water bath with thermostatic control 2.5, gas outlet is towards water bath with thermostatic control 2.5；Increase check valve 2.4, it can be more smart
The one-way flow for really controlling gas prevents gas reverse flow from influencing test accuracy.
The gas control system 2 further includes one 2.31 and gas flow meter 3 2.33 of gas flowmeter, respectively with gas
Flowmeter body 2 2.32 is arranged in parallel, i.e., the entrance of one 2.31 and gas flow meter 3 2.33 of gas flowmeter respectively with gas stream
The inlet communication of gauge 2 2.32 exports the outlet with gas flowmeter 2 2.32 respectively；Valve 9 2.84 and valve ten
2 2.87 are respectively provided on one 2.31 inlet and outlet pipeline of gas flowmeter, 14 points of valve 11 and valve
It is not located on 3 2.33 inlet and outlet pipeline of gas flowmeter.Using three gas flowmeters so that when experiment, each gas
Body successively flows separately through corresponding flowmeter, and obtained test result is more accurate.
The gaseous sample acquisition system 6 further includes 4 6.21 and gas flow meter 6 6.23 of gas flowmeter, respectively
Be arranged in parallel with gas flowmeter 5 6.22, i.e., the entrance of 4 6.21 and gas flow meter 6 6.23 of gas flowmeter respectively with gas
The inlet communication of flowmeter body 5 6.22 exports the outlet with gas flowmeter 5 6.22 respectively；Valve 23
It is respectively provided on 4 6.21 inlet and outlet pipeline of gas flowmeter with valve 20, valve 25 and valve
22 are respectively provided on 6 6.23 inlet and outlet pipeline of gas flowmeter.Using three gas flowmeters, carry out
When different experiment, data acquisition is carried out using corresponding flowmeter respectively, obtained test result is more accurate, can also
It is spare with other flowmeter when one of which gas flowmeter goes wrong.
The gaseous sample acquisition system 6 further includes being located between 6.4 and gas flow meter 5 6.22 of gas-liquid separator
Drier 6.3, further dried for the gas to isolating, keep test result more accurate.
The pressure sensor 3 1.33 is four, equidistant along sample room axis direction in core holding unit 1.1
Setting；The pressure of different location in sample room is directly measured, and then calculates the indoor actual pressure of sample, is compared pressure
Sensor is arranged on the inlets or outlets pipeline of sample room, such to arrange that the pressure of obtained sample room is more accurate.
The precision of all pressure sensors and differential pressure pickup is 0.05% in device, and sensitivity is ± 0.05F.S；It is permanent
The temperature-controlled precision of tepidarium 2.5 is ± 0.1 DEG C, and operating temperature is 150 DEG C；Ring pressure tracking pump 4.2 flow accuracy be
The axial load precision of 0.001ml/min, hydraulic servo instrument 4.1 are ± 1%；The measurement accuracy of strain testing instrument 1.5 is 0.2%
±2με；The measurement accuracy of temperature sensor is 0.1 DEG C；The pressure ratio of gas boosting pump 2.7 is 100:1；Select high-precision survey
Element is measured, ensures the accuracy of the test data measured as much as possible.
Pipeline in whole device uses 316L pipelines.
The present invention is to ensure safety, is divided into control zone, trial zone, control zone is isolated with trial zone, it is ensured that personnel operate
In safety zone.Whole operation control system can lead in an individual room, core holding unit with reference to cylinder and air compressor machine etc.
It crosses camera to observe in control room, it is ensured that experiment safety.
A kind of CO2Displacement simulation test method, steps are as follows：
A) sample tinning：Moisture or balance oil processing are balanced to rock sample；Connect model system 1, gas control system
System 2, temperature control system 3, three axis loading systems 4, pumped vacuum systems 5, gaseous sample acquisition system 6 and electrical control and monitoring
The pipeline and circuit of system；Core holding unit 1.1 is opened, the rock sample crossed with vernier caliper measurement is put into core holding unit 1.1
Sample room in, before being put into, foil gauge is placed on rock sample, after placing, the core holding unit 1.1 being sealed is placed on temperature
It spends in the electric heating cover in control system 3；
B) airtight test：Tracking is pressed to pump 4.2 pairs of core holding units 1.1 plus confining pressure to 2MPa by ring；It opens and removes valve seven
2.82, all valves except valve 8 2.83 and valve 15, high-purity helium is injected into experimental rig, and (purity is
99.99%), the air inside device is replaced away；All valves are closed, are opened except valve 6 2.81, valve 7 2.82, valve
All valves outside door 8 2.83 and valve 15 enable vacuum pump 5.1 and are vacuumized to device；Close all valves
Door, running control software are heated to test temperature to core holding unit 1.1；Open valve 6 2.81, valve 10, valve
13, valve 16 and valve 1 upstream refer to and inject high-purity helium in cylinder 1.21, make upstream reference cylinder
Pressure in 1.21 closes valve 16, opens valve 2 1.62, make upstream reference cylinder higher than experiment maximum pressure 1MPa
Pressure balance between 1.21 and the sample room of core holding unit 1.1, while increasing confining pressure and axis pressure, ensure injection pressure and enclosing
Pressure, axis pressure are raised simultaneously to test requirements document pressure, close valve 1 and valve 2 1.62；Or core holding unit 1.1 is added
After heat to test temperature, valve 6 2.81, valve 10, valve 13, valve 16, valve two are opened
1.62, valve 3 1.63 and valve 4 1.64 downstream refer to and inject high-purity helium in cylinder 1.22, make in downstream reference cylinder 1.22
Pressure higher than experiment maximum pressure 1MPa, close valve 16, make downstream reference cylinder 1.22 and core holding unit 1.1
Pressure balance between sample room, while increasing confining pressure and axis pressure, ensure that injection pressure and confining pressure, axis pressure are raised simultaneously to experiment and wanted
Pressure is sought, valve 2 1.62, valve 3 1.63 and valve 4 1.64 are closed；Acquire upstream reference cylinder 1.21, downstream reference cylinder
1.22 and core holding unit in pressure data, observation pressure it is whether steady；If pressure is steady, the gas in device is released
Fall, while laying down confining pressure, if pressure is unstable, repeats step a)；
C) displacement simulation is carried out：
1. pressing tracking pump 4.2 to core holding unit 1.1 plus confining pressure to 2MPa from ring, open except valve 6 2.81, valve seven
2.82, all valves outside valve 8 2.83 and valve 15 enable vacuum pump 5.1 and are vacuumized to device；Operation
Control software opens valve 8 2.83, and the high-purity methane that a small amount of purity is 99.99%, detergent line are injected into device；It takes out again
Vacuum repeats 3-5 times, it is ensured that the helium in device cleans up；
2. closing all valves, it is arranged and adjusts the temperature of temperature control system, the temperature of core holding unit 1.1 is made to stablize
In experimental design temperature；
3. opening valve 8 2.83, valve 10, valve 13, valve 16, valve 2 1.62, valve
3 1.63 and valve 4 1.64, it downstream refers to and injects methane gas in cylinder 1.22, its pressure is made to reach experimental design pressure, close
Valve closing Men Shiliu 2.91 and valve 2 1.62 make the pressure balance of both 1.1 sample rooms of downstream reference cylinder 1.22 and core holding unit,
Increase confining pressure and axis pressure simultaneously；
4. stopping injection gas, the pressure in core holding unit 1.1 and confining pressure, Axial Compression Stability are waited for；If core holding unit 1.1
Interior pressure declines, and repeats step 3., until the indoor pressure of 1.1 sample of core holding unit and confining pressure, Axial Compression Stability are being tested
Design pressure；
5. closing valve 8 2.83, valve 7 2.82, valve 16 and valve 1 are opened, upstream refers to cylinder
CO is injected in 1.212, make the CO in it2Injection pressure is higher than the methane gas in core holding unit 1.1 and downstream reference cylinder 1.22
Pressure reaches experimental design inlet pressure；
6. closing valve 16, stops injection gas, open valve 2 1.62, make upstream reference cylinder 1.21, rock core
It is connected between 1.1 sample room of clamper and downstream reference cylinder 1.22；
7. starting control software acquisition time, the indoor pressure of 1.1 sample of core holding unit, temperature, stress-strain, two
The related datas such as a pressure and pressure difference with reference in cylinder, and form data file；If during experiment, in upstream reference cylinder 1.21
Pressure significantly decrease, that is, be more than experimental design inlet pressure 5%, in time upstream refer to cylinder 1.21 in supplement CO2,
To maintain pressure stability；
8. closing all valves, the pressure of counterbalance valve 6.5 is adjusted, opens valve 3 1.63, valve 4 1.64, valve 20
4 6.76, valve 21 and valve 19 make gas pass sequentially through counterbalance valve 6.5, gas-liquid separator 6.4, do
Enter gas chromatograph 6.1 after dry device 6.3, gas flowmeter 5 6.22, obtains core holding unit 1.1 or downstream reference cylinder
Gas composition analysis result in 1.22；
D) pilot system is cleared up：After the test, it opens in addition to valve 6 2.81, valve 7 2.82 and valve 8 2.83
All valves, release to the gas in device, at the same by core holding unit 1.1 confining pressure and axis pressure lay down；It releases
Pipeline and connection, cool；The indoor rock sample of 1.1 sample of removal of core clamper puts each element classification of device
It is good.
A kind of three-axis penetration rate test method, steps are as follows：
A) sample tinning：Moisture or balance oil processing are balanced to rock sample；Connect model system 1, gas control system
System 2, temperature control system 3, three axis loading systems 4, pumped vacuum systems 5, gaseous sample acquisition system 6 and electrical control and monitoring
The pipeline and circuit of system；Core holding unit 1.1 is opened, the rock sample crossed with vernier caliper measurement is put into core holding unit 1.1
Sample room in, before being put into, foil gauge is placed on rock sample, after placing, the core holding unit 1.1 being sealed is placed on temperature
It spends in the electric heating cover in control system 3；
B) airtight test：Tracking is pressed to pump 4.2 pairs of core holding units 1.1 plus confining pressure to 2MPa by ring；It opens and removes valve seven
2.82, all valves except valve 8 2.83 and valve 15, high-purity helium is injected into experimental rig, and (purity is
99.99%), the air inside device is replaced away；All valves are closed, are opened except valve 6 2.81, valve 7 2.82, valve
All valves outside door 8 2.83 and valve 15 enable vacuum pump 5.1 and are vacuumized to device；Close all valves
Door, running control software are heated to test temperature to core holding unit 1.1；Open valve 6 2.81, valve 10, valve
13, valve 16 and valve 1 upstream refer to and inject high-purity helium in cylinder 1.21, make upstream reference cylinder
Pressure in 1.21 closes valve 16, opens valve 2 1.62, make upstream reference cylinder higher than experiment maximum pressure 1MPa
Pressure balance between 1.21 and the sample room of core holding unit 1.1, while increasing confining pressure and axis pressure, ensure injection pressure and enclosing
Pressure, axis pressure are raised simultaneously to test requirements document pressure, close valve 1 and valve 2 1.62；Or core holding unit 1.1 is added
After heat to test temperature, valve 6 2.81, valve 10, valve 13, valve 16, valve two are opened
1.62, valve 3 1.63 and valve 4 1.64 downstream refer to and inject high-purity helium in cylinder 1.22, make in downstream reference cylinder 1.22
Pressure higher than experiment maximum pressure 1MPa, close valve 16, make downstream reference cylinder 1.22 and core holding unit 1.1
Pressure balance between sample room, while increasing confining pressure and axis pressure, ensure that injection pressure and confining pressure, axis pressure are raised simultaneously to experiment and wanted
Pressure is sought, valve 2 1.62, valve 3 1.63 and valve 4 1.64 are closed；Acquire upstream reference cylinder 1.21, downstream reference cylinder
1.22 and core holding unit in pressure data, observation pressure it is whether steady；If pressure is steady, the gas in device is released
Fall, while laying down confining pressure, if pressure is unstable, repeats step a)；
C) permeability test is carried out：
1. pressing tracking pump 4.2 to core holding unit 1.1 plus confining pressure to 2MPa from ring, open except valve 6 2.81, valve seven
2.82, all valves outside valve 8 2.83 and valve 15 enable vacuum pump 5.1 and are vacuumized to device；Operation
Control software opens valve 8 2.83, and the high-purity methane that a small amount of purity is 99.99%, detergent line are injected into device；It takes out again
Vacuum repeats 3-5 times, it is ensured that the helium in device cleans up；
2. closing all valves, it is arranged and adjusts the temperature of temperature control system, the temperature of core holding unit 1.1 is made to stablize
In experimental design temperature；
3. opening valve 10, valve 13, valve 16, valve 2 1.62, valve 3 1.63, valve
4 1.64, then open valve 8 2.83 or valve 7 2.82 or valve 6 2.81, downstream refer in cylinder 1.22 injection methane or
CO2Or helium, so that its pressure is reached experimental design pressure, closes valve 16 and valve 2 1.62, make downstream reference cylinder
The pressure balance of both 1.22 and 1.1 sample room of core holding unit, while increasing confining pressure and axis pressure；
4. stopping injection gas, the pressure in core holding unit 1.1 and confining pressure, Axial Compression Stability are waited for；If core holding unit 1.1
Interior pressure declines, and repeats step 3., until the indoor pressure of 1.1 sample of core holding unit and confining pressure, Axial Compression Stability are being tested
Design pressure；
5. opening valve 16 and valve 1, injection methane or CO in cylinder 1.21 are upstream referred to2Or helium,
Make the gas injection pressure in it higher than the gas pressure in core holding unit 1.1 and downstream reference cylinder 1.22, reaches examination
Test design entry pressure；
6. closing valve 16, stops injection gas, open valve 2 1.62, make upstream reference cylinder 1.21, rock core
It is connected between 1.1 sample room of clamper and downstream reference cylinder 1.22；
7. starting control software acquisition time, the indoor pressure of 1.1 sample of core holding unit, temperature, stress-strain, two
The related datas such as a pressure and pressure difference with reference in cylinder, and form data file；The permeability value of rock sample is calculated according to the following formula：
In formula, K is test permeability, md；C is the rock sample Fluid in Pore compressed coefficient, 1/MPa；μ is fluid viscosity,
mPs·s；For rock sample porosity, decimal；L is rock sample length, m；S is that upstream and downstream are right half with reference to cylinder pressure difference △ p and time t
Slope in number coordinate；A, b is respectively the ratio that rock sample pore volume refers to cylinder volume with upstream and downstream, as a=b=1, f
(a, b)=1.71.
D) pilot system is cleared up：After the test, it opens in addition to valve 6 2.81, valve 7 2.82 and valve 8 2.83
All valves, release to the gas in device, at the same by core holding unit 1.1 confining pressure and axis pressure lay down；It releases
Pipeline and connection, cool；The indoor rock sample of 1.1 sample of removal of core clamper puts each element classification of device
It is good.
Claims (8)
1. a kind of three-axis penetration rate test and CO2Displacement simulation experimental rig, which is characterized in that including：Model system (1), gas
Control system (2), temperature control system (3), three axis loading systems (4), pumped vacuum systems (5), gaseous sample acquisition system (6)
With electrical control and monitoring system；
The model system (1) includes core holding unit (1.1), upstream reference cylinder (1.21), downstream reference cylinder (1.22), answers
Become the valve of tester (1.5) and multiple control gas circulations, the entrance of the core holding unit (1.1) sample room and upstream
It is connected to downstream reference cylinder (1.22) entrance with reference to the connection of cylinder (1.21) entrance, outlet；The upstream reference cylinder (1.21)
The outlet of outlet and downstream reference cylinder (1.22), is equipped between upstream reference cylinder (1.21) and downstream reference cylinder (1.22)
Differential pressure pickup (1.4)；Rock sample periphery is equipped with several foil gauges, end of the foil gauge lead from core holding unit (1.1)
It stretches out and is connect with strain testing instrument (1.5) electric signal；It is connected with pressure sensor one on the upstream reference cylinder (1.21)
(1.31), it is connected with pressure sensor two (1.32) on downstream reference cylinder (1.22), is connected on core holding unit (1.1) sample room
There is pressure sensor three (1.33)；
The gas control system (2) includes gas cylinder, pressure reducing valve, gas flowmeter two (2.32), water bath with thermostatic control
(2.5), the valve of air compressor machine (2.6), gas boosting pump (2.7) and multiple control gas circulations, the gas cylinder include
Helium gas cylinder (2.11), CO 2 high pressure gas cylinder (2.12) and methane gas cylinder (2.13), the pressure reducing valve packet
Include pressure reducing valve one (2.21), pressure reducing valve two (2.22) and pressure reducing valve three (2.23)；Helium gas cylinder (2.11), carbon dioxide are high
The air inlet that air bottle (2.12) and methane gas cylinder (2.13) pump (2.7) with gas boosting is connect, and connecting line passes through perseverance
Tepidarium (2.5)；Pressure reducing valve one (2.21), pressure reducing valve two (2.22) and the pressure reducing valve three (2.23) is respectively provided at helium height
On air bottle (2.11), CO 2 high pressure gas cylinder (2.12) and methane gas cylinder (2.13) exit pipeline, gas flow
Two (2.32) of meter are located on the main pipe rail between three pressure reducing valves and water bath with thermostatic control (2.5)；The air compressor machine (2.6) and gas
Increasing pump (2.7) connects, and gas boosting pumps gas outlet and core holding unit (1.1) sample chamber inlet and the upstream reference of (2.7)
Cylinder (1.21) entrance connects；
The temperature control system (3) includes package core holding unit (1.1), upstream reference cylinder (1.21) and downstream reference cylinder
(1.22) electric heating cover, electric heating cover is interior to be equipped with temperature sensor；
The three axis loading systems (4) include hydraulic servo instrument (4.1) and ring pressure tracking pump (4.2), the hydraulic servo
Instrument (4.1) is connect by pipeline with the pressure head of core holding unit (1.1) upper end, and connecting line is equipped with pressure sensor five
(4.32)；Ring pressure tracking pump (4.2) is connected to by pipeline with the annular space of core holding unit, and connecting line is passed equipped with pressure
Sensor four (4.31)；
The gaseous sample acquisition system (6) includes gas chromatograph (6.1), gas flowmeter five (6.22), gas-liquid separation
Device (6.4), counterbalance valve (6.5), pressure sensor six (6.6) and the valve of multiple control gas circulations, rock core clamping
The outlet of the sample room of device (1.1) is connect by pipeline with gas chromatograph (6.1), from core holding unit on connecting line
(1.1) pressure sensor six (6.6), counterbalance valve (6.5), gas are equipped with successively on the direction of gas chromatograph (6.1)
Liquid/gas separator (6.4) and gas flow meter five (6.22)；
The pumped vacuum systems (5) includes vacuum pump (5.1), the vacuum pump (5.1) and gas flowmeter five (6.22)
Pipeline connection between gas chromatograph (6.1)；Vacuum pump (5.1) also with upstream reference cylinder (1.21) and downstream reference cylinder
(1.22) pipeline connection between；
The electrical control and monitoring system, including industrial personal computer, display and pick-up instrument, high-speed camera, relay protection
With warning circuit and electric control circuit, power distribution circuit and control software.
2. a kind of three-axis penetration rate test according to claim 1 and CO2Displacement simulation experimental rig, it is characterized in that：It is described
Gas control system (2) further include check valve (2.4), the check valve (2.4) be located at gas flowmeter two (2.32) and
On pipeline between water bath with thermostatic control (2.5), gas outlet is towards water bath with thermostatic control (2.5).
3. a kind of three-axis penetration rate test according to claim 2 and CO2Displacement simulation experimental rig, it is characterized in that：It is described
Gas control system (2) further include gas flowmeter one (2.31) and gas flow meter three (2.33), respectively with gas flow
Two (2.32) of meter are arranged in parallel.
4. a kind of three-axis penetration rate test according to claims 1 to 3 any claim and CO2Displacement simulation experiment dress
It sets, it is characterized in that：The gaseous sample acquisition system (6) further includes gas flowmeter four (6.21) and gas flow meter six
(6.23), it is arranged in parallel respectively with gas flowmeter five (6.22).
5. a kind of three-axis penetration rate test according to claim 4 and CO2Displacement simulation experimental rig, it is characterized in that：It is described
Gaseous sample acquisition system (6) further include the drying being located between gas-liquid separator (6.4) and gas flow meter five (6.22)
Device (6.3).
6. a kind of three-axis penetration rate test according to claim 5 and CO2Displacement simulation experimental rig, it is characterized in that：It is described
Pressure sensor three (1.33) be four, along the interior sample room axis direction spaced set of core holding unit (1.1).
7. a kind of three-axis penetration rate test according to claim 6 and CO2Displacement simulation experimental rig, it is characterized in that：Device
In all pressure sensors and differential pressure pickup precision be 0.05%, sensitivity be ± 0.05F.S；Water bath with thermostatic control (2.5)
Temperature-controlled precision be ± 0.1 DEG C, operating temperature be 150 DEG C；The flow accuracy of ring pressure tracking pump (4.2) is 0.001ml/min, liquid
It is ± 1% to press the axial load precision of servo instrument (4.1)；The measurement accuracy of strain testing instrument (1.5) is 0.2% ± 2 μ ε；Temperature
The measurement accuracy of sensor is 0.1 DEG C；The pressure ratio that gas boosting pumps (2.7) is 100:1.
8. a kind of three-axis penetration rate test according to claim 7 and CO2Displacement simulation experimental rig, it is characterized in that：Entirely
Pipeline in device uses 316L pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097759.4A CN108414419B (en) | 2018-01-31 | 2018-01-31 | Triaxial permeability test and CO2Displacement simulation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810097759.4A CN108414419B (en) | 2018-01-31 | 2018-01-31 | Triaxial permeability test and CO2Displacement simulation test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108414419A true CN108414419A (en) | 2018-08-17 |
| CN108414419B CN108414419B (en) | 2021-02-05 |
Family
ID=63127481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810097759.4A Active CN108414419B (en) | 2018-01-31 | 2018-01-31 | Triaxial permeability test and CO2Displacement simulation test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108414419B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238938A (en) * | 2018-09-21 | 2019-01-18 | 中国石油大学(北京) | Stress sensitive experimental provision and its method under triaxial state of stress |
| CN109236250A (en) * | 2018-09-13 | 2019-01-18 | 中国地质调查局水文地质环境地质调查中心 | A kind of supercritical CO2Pressure break coal petrography enhances coal bed gas harvesting simulation experiment method and system |
| CN109470616A (en) * | 2018-10-31 | 2019-03-15 | 重庆大学 | Rock multifunction seepage test macro |
| CN109799312A (en) * | 2018-12-11 | 2019-05-24 | 中国矿业大学 | A kind of simulator and method of low-temperature oxidation of coal |
| CN109813645A (en) * | 2019-03-19 | 2019-05-28 | 苏州开洛泰克科学仪器科技有限公司 | A kind of the radial penetration rate measuring system and method for hypotonic rock ore-rock stem plug |
| CN110308259A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | A kind of multi- scenarios method pressure break-displacement cooperative reinforcing gas drainage experimental rig |
| CN110530772A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal sample large compressive strain and carbon dioxide displacement coal bed methane one experimental rig |
| CN110530773A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Gas flow and jet stream experimental rig |
| CN110529107A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal seam strain, seepage flow, displacement and jet stream integrated experiment device and method |
| CN110631937A (en) * | 2019-09-02 | 2019-12-31 | 中国矿业大学 | Testing arrangement that circulation absorption expansion deformation is anti-reflection to coal body fatigue damage |
| CN111141657A (en) * | 2020-02-25 | 2020-05-12 | 中国矿业大学(北京) | System and method for measuring permeability of coal rock |
| CN113686750A (en) * | 2021-08-20 | 2021-11-23 | 太原理工大学 | Coal measure stratum composite phase state CO2Seepage characteristic test device and application |
| CN113945481A (en) * | 2021-09-29 | 2022-01-18 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Injecting CO into low-permeability coal seam2Simulation test system for continuous process of displacing coal bed gas |
| CN113945482A (en) * | 2021-09-29 | 2022-01-18 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Injecting CO into low-permeability coal seam2Simulation test method for continuous process of displacing coal bed gas |
| CN114441407A (en) * | 2022-01-14 | 2022-05-06 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Hypotonic coal rock CO2Dynamic visual simulation test system and method for displacement process |
| WO2023130603A1 (en) * | 2022-01-07 | 2023-07-13 | 重庆地质矿产研究院 | Experimental system and experimental evaluation method for displacement and replacement of methane by carbon dioxide pulse |
| US11841304B1 (en) * | 2022-11-23 | 2023-12-12 | Peking University | Device and method for testing effective diffusion coefficient of helium in helium-bearing natural gas |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201532351U (en) * | 2009-11-13 | 2010-07-21 | 中国科学院武汉岩土力学研究所 | Device for utilizing variable-volume pressure pulse method to test gas permeation coefficients of rocks |
| CN103743661A (en) * | 2014-01-13 | 2014-04-23 | 中国石油天然气股份有限公司 | rock permeability testing device |
| CN104777269A (en) * | 2015-03-24 | 2015-07-15 | 中国矿业大学 | Supercritical CO2 injection and coalbed methane enhanced displacement simulation test method |
| CN205103247U (en) * | 2015-10-30 | 2016-03-23 | 南通市飞宇石油科技开发有限公司 | Real triaxial rock core holder |
| CN105806762A (en) * | 2016-03-09 | 2016-07-27 | 中国矿业大学(北京) | True triaxial coal rock three-dimensional deformation and permeability holder |
| CN106814018A (en) * | 2017-01-18 | 2017-06-09 | 西南石油大学 | A kind of tight rock gas phase relative permeability measurement apparatus and method |
| CN206627402U (en) * | 2017-02-24 | 2017-11-10 | 中国石油化工股份有限公司 | A kind of permeability of low-leakage stone test system |
-
2018
- 2018-01-31 CN CN201810097759.4A patent/CN108414419B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201532351U (en) * | 2009-11-13 | 2010-07-21 | 中国科学院武汉岩土力学研究所 | Device for utilizing variable-volume pressure pulse method to test gas permeation coefficients of rocks |
| CN103743661A (en) * | 2014-01-13 | 2014-04-23 | 中国石油天然气股份有限公司 | rock permeability testing device |
| CN104777269A (en) * | 2015-03-24 | 2015-07-15 | 中国矿业大学 | Supercritical CO2 injection and coalbed methane enhanced displacement simulation test method |
| CN205103247U (en) * | 2015-10-30 | 2016-03-23 | 南通市飞宇石油科技开发有限公司 | Real triaxial rock core holder |
| CN105806762A (en) * | 2016-03-09 | 2016-07-27 | 中国矿业大学(北京) | True triaxial coal rock three-dimensional deformation and permeability holder |
| CN106814018A (en) * | 2017-01-18 | 2017-06-09 | 西南石油大学 | A kind of tight rock gas phase relative permeability measurement apparatus and method |
| CN206627402U (en) * | 2017-02-24 | 2017-11-10 | 中国石油化工股份有限公司 | A kind of permeability of low-leakage stone test system |
Non-Patent Citations (2)
| Title |
|---|
| 朱启朋等: "煤储层渗透率动态变化模型与模拟研究", 《西安科技大学学》 * |
| 王晋: "煤体注CO2置换CH4渗透率变化规律及对采收率影响研究", 《中国博士学位论文全文数据库》 * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109236250A (en) * | 2018-09-13 | 2019-01-18 | 中国地质调查局水文地质环境地质调查中心 | A kind of supercritical CO2Pressure break coal petrography enhances coal bed gas harvesting simulation experiment method and system |
| CN109238938A (en) * | 2018-09-21 | 2019-01-18 | 中国石油大学(北京) | Stress sensitive experimental provision and its method under triaxial state of stress |
| CN109470616A (en) * | 2018-10-31 | 2019-03-15 | 重庆大学 | Rock multifunction seepage test macro |
| CN109799312A (en) * | 2018-12-11 | 2019-05-24 | 中国矿业大学 | A kind of simulator and method of low-temperature oxidation of coal |
| CN109799312B (en) * | 2018-12-11 | 2021-10-22 | 中国矿业大学 | Simulation device and method for low-temperature oxidation of coal |
| CN109813645A (en) * | 2019-03-19 | 2019-05-28 | 苏州开洛泰克科学仪器科技有限公司 | A kind of the radial penetration rate measuring system and method for hypotonic rock ore-rock stem plug |
| CN109813645B (en) * | 2019-03-19 | 2021-07-02 | 苏州开洛泰克科学仪器科技有限公司 | System and method for measuring radial permeability of core plunger of low-permeability rock ore |
| CN110308259A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | A kind of multi- scenarios method pressure break-displacement cooperative reinforcing gas drainage experimental rig |
| CN110308259B (en) * | 2019-07-02 | 2021-02-02 | 中国矿业大学 | Multi-field coupling fracturing-displacement cooperative strengthening gas extraction test device |
| CN110530772A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal sample large compressive strain and carbon dioxide displacement coal bed methane one experimental rig |
| CN110631937A (en) * | 2019-09-02 | 2019-12-31 | 中国矿业大学 | Testing arrangement that circulation absorption expansion deformation is anti-reflection to coal body fatigue damage |
| CN110530773B (en) * | 2019-09-02 | 2020-06-09 | 重庆大学 | Gas seepage and jet flow test device |
| CN110529107A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Coal seam strain, seepage flow, displacement and jet stream integrated experiment device and method |
| CN110530773A (en) * | 2019-09-02 | 2019-12-03 | 重庆大学 | Gas flow and jet stream experimental rig |
| CN111141657A (en) * | 2020-02-25 | 2020-05-12 | 中国矿业大学(北京) | System and method for measuring permeability of coal rock |
| CN111141657B (en) * | 2020-02-25 | 2021-11-23 | 中国矿业大学(北京) | System and method for measuring permeability of coal rock |
| CN113686750A (en) * | 2021-08-20 | 2021-11-23 | 太原理工大学 | Coal measure stratum composite phase state CO2Seepage characteristic test device and application |
| CN113945481A (en) * | 2021-09-29 | 2022-01-18 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Injecting CO into low-permeability coal seam2Simulation test system for continuous process of displacing coal bed gas |
| CN113945482A (en) * | 2021-09-29 | 2022-01-18 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Injecting CO into low-permeability coal seam2Simulation test method for continuous process of displacing coal bed gas |
| WO2023130603A1 (en) * | 2022-01-07 | 2023-07-13 | 重庆地质矿产研究院 | Experimental system and experimental evaluation method for displacement and replacement of methane by carbon dioxide pulse |
| CN114441407A (en) * | 2022-01-14 | 2022-05-06 | 合肥综合性国家科学中心能源研究院(安徽省能源实验室) | Hypotonic coal rock CO2Dynamic visual simulation test system and method for displacement process |
| US11841304B1 (en) * | 2022-11-23 | 2023-12-12 | Peking University | Device and method for testing effective diffusion coefficient of helium in helium-bearing natural gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108414419B (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108414419A (en) | A kind of test of three-axis penetration rate and CO2Displacement simulation experimental rig | |
| CN108414418A (en) | A kind of three-axis penetration rate test method | |
| CN108414727A (en) | A kind of CO2Displacement simulation test method | |
| CN104777269B (en) | A kind of supercritical CO2inject and strengthen displacement simulation test method with coal bed gas | |
| CN104792644B (en) | The test method of coal petrography sample free volume swell increment during a kind of competitive Adsorption | |
| CN109826621B (en) | Coal bed gas multilayer combined gas-water two-phase seepage experimental device and test method | |
| CN104777057B (en) | Supercritical CO2 injection and coalbed methane enhanced displacement simulation test device | |
| CN106290045B (en) | Unconventional tight sandstone reservoir oiliness and mobility evaluation experimental method | |
| CN106840991B (en) | A kind of Unconventional gas rock-more PROCESS COUPLING pilot systems of gas-heat | |
| CN103969165B (en) | Device and method for simultaneously testing permeability of compact rocks under transient state and steady state | |
| CN106383221B (en) | A kind of reservoir stress sensitive experiment test method and device | |
| CN104849300B (en) | Coal gas content influences research experiment platform and its application method to coal spontaneous combustion characteristic | |
| CN109236250A (en) | A kind of supercritical CO2Pressure break coal petrography enhances coal bed gas harvesting simulation experiment method and system | |
| CN106442044B (en) | Method for manufacturing unconventional tight sandstone oil quantitative simulation experiment sample | |
| CN105699273A (en) | Testing device and method of desorption and seepage of steam driven coal mass methane | |
| CN104777058A (en) | Measurement device and method for free expansion volume of coal rock adsorption | |
| CN107807084A (en) | A kind of rock sample seepage flow test device and method | |
| CN205538584U (en) | Testing arrangement of steam driven coal body methane desorption seepage flow | |
| CN106932328A (en) | The system and method for coal body permeability is tested using search gas | |
| CN108119132A (en) | Tight sandstone gas reservoir near-wellbore-zone radial seepage water saturation simulation device and method | |
| CN116735835A (en) | Compact sandstone condensate gas reservoir failure development simulation device and method | |
| CN110284922A (en) | A kind of CO2Geological storage strengthens gas drainage and induces prominent method for testing risk | |
| CN107703275A (en) | A kind of methane hydrate balances each other the High-Voltage Experimentation device and method of research | |
| CN109238938B (en) | Stress sensitive experimental provision and its method under triaxial state of stress | |
| CN105842275A (en) | Steam driven coal gas desorption heat conduction test method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |