CN109211753A - More of rock, multiphase porous flow experimental provision under a kind of perturbation action - Google Patents
More of rock, multiphase porous flow experimental provision under a kind of perturbation action Download PDFInfo
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- CN109211753A CN109211753A CN201811090141.1A CN201811090141A CN109211753A CN 109211753 A CN109211753 A CN 109211753A CN 201811090141 A CN201811090141 A CN 201811090141A CN 109211753 A CN109211753 A CN 109211753A
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- 239000011435 rock Substances 0.000 title claims abstract description 79
- 230000009471 action Effects 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 239000012530 fluid Substances 0.000 claims abstract description 30
- 230000035699 permeability Effects 0.000 claims abstract description 14
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 238000012360 testing method Methods 0.000 claims description 28
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000004088 simulation Methods 0.000 abstract description 6
- 230000003204 osmotic effect Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 35
- 238000002474 experimental method Methods 0.000 description 18
- 239000012071 phase Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/082—Investigating permeability by forcing a fluid through a sample
- G01N15/0826—Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/0806—Details, e.g. sample holders, mounting samples for testing
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- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Fluid Mechanics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses more of rocks, multiphase porous flow experimental provision under a kind of perturbation action, including axis to press loading system, for applying axis pressure to rock sample；Confining pressure loading system, for applying confining pressure to rock sample；Perturbed system, for providing the disturbance of different amplitudes, different frequency for rock sample；Fluid loads channel, for injecting liquid into rock sample；Gas-loaded channel, for injecting gas into rock sample；Gas-liquid separation and collection system, for will be separately collected by gas after rock sample and liquid.The present invention can one pump it is dual-purpose, it economizes on resources, a kind of deformation disturbing rod is added in normal pressures chamber interior simultaneously, laterally disturbance is realized by vibration excitor, it can be with the influence of disturbing influence and heterogeneous fluid to rock permeability suffered by rock in real simulation Practical Project.By control confining pressure and osmotic pressure, rock related coefficient in practical projects and permeability evolution rule are obtained so as to more accurate.
Description
Technical field
The invention belongs to rock under the technical field of rock permeation fluid mechanics testing equipment more particularly to a kind of perturbation action is more
Field, multiphase porous flow experimental provision.
Background technique
With economic development constantly forward, the need of either national development or daily life for the energy
It asks and increasingly increases, the exploitation of subterranean resource at present gradually develops to deep, compared with shallow mining, deep mining geology item
Part is ever-changing, underground water and other mix or the characteristics of motion of immiscible fluid is also intricate in rock.Simultaneously as opening
The influence of the disturbances such as explosion, machine instruction statement mining energetic disturbance, high level rock burst and mine shake, part fracture during adopting, so that
Obtained relevant parameter and rule is tested by traditional more, multiphase porous flow to be difficult to solve existing practical problem.
For now, fluid structurecoupling experimental provision mostly uses greatly single phase fluid flow medium, and in practical projects, often
Liquid seepage and gas flow collective effect are among rock mass.Meanwhile in petroleum, natural gas, CO2During storage and nuke rubbish
In buried engineering, if not fully considering the influence of more, multiphase porous flow, effective construction method and safety cannot be taken
Measure, and then the problems such as bring the unnecessary wasting of resources, environmental pollution and life security.Therefore, seek accurate, reliable energy
Under the influence of disturbance carry out rock Duo Chang, more, the experimental provision of multiphase porous flow it is extremely urgent.
Summary of the invention
Based on the above the deficiencies in the prior art, technical problem solved by the invention is to provide rock under a kind of perturbation action
More of stone, multiphase porous flow experimental provision, can simulate under Practical Project perturbation action, realize more, multiphase porous flow of rock
Experiment.
In order to solve the above-mentioned technical problem, the present invention is achieved through the following technical solutions: the present invention provides a kind of disturbance
Lower more of rock, multiphase porous flow experimental provision are acted on, including axis presses loading system, for applying axis pressure to rock sample；
Confining pressure loading system, for applying confining pressure to rock sample；
Perturbed system, for providing the disturbance of different amplitudes, different frequency for rock sample；
Fluid loads channel, for injecting liquid into rock sample；
Gas-loaded channel, for injecting gas into rock sample；
Gas-liquid separation and collection system are obtained for will be separately collected by gas after rock sample and liquid
The effective permeability of air-liquid.
Further, the rock sample is placed on the center position of cylinder body vertically, the top of the rock sample and
Bottom is supported by rectangle cushion block and convex cushion block respectively.
Further, the axis pressure loading system includes pressure the load pipeline, the two or six of the axis made of stainless steel high-voltage tube
Port valve, oil pump, axis compressing cylinder；
The axis compressing cylinder presses load pipeline, the second six-way valve to be connected with the oil pump by the axis, the axis pressure
The top plate that the trapezoid shaft pressure telescopic rod of oil cylinder penetrates through the cylinder body is connected with the rectangle cushion block；
The axis pressure load pipeline is equipped with the 5th pressure gauge.
By upper, axis pressure load is provided for test specimen by oil pump, the second six-way valve and axis compressing cylinder.
Optionally, the confining pressure loading system includes the load of the confining pressure made of stainless steel high-voltage tube pipeline, the three or six leads to
Valve, air pump；
One end of the confining pressure load pipeline is connected by third six-way valve with the air pump, and the other end passes through described
The fourth hole of cylinder body；
The confining pressure load pipeline is equipped with the 4th pressure gauge.
By upper, confining pressure load is provided for test specimen by air pump and third six-way valve.
Further, the perturbed system includes being located at the cylinder base left and right ends and symmetrically arranged vibration excitor bottom
Seat, the vibration excitor pedestal top are provided with vibration excitor, are provided with " L " disturbing rod above the vibration excitor, the disturbing rod
End is connected to the middle part of the rock sample.
By upper, disturbance needed for providing test by vibration excitor and disturbing rod for test specimen can be realized different amplitudes, different
The disturbing influence of frequency.It is connected in the middle part of test specimen by the end of L shape disturbing rod, provides axial disturbance for test specimen.
Optionally, fluid load channel includes oil liquid load channel and water load channel；
Water load channel includes water pump and blending tank, and it is logical that the one or six is successively arranged between the water pump and blending tank
Valve, filter, the first fluid flowmeter, first six-way valve are circumscribed with first pressure gauge and the first vacuum tank；
Oil liquid load channel includes oil pump and blending tank, is successively arranged second between the oil pump and the blending tank
Six-way valve, second liquid flowmeter and second pressure gauge, second six-way valve are circumscribed with the second vacuum tank；
The blending tank is connect by " inverted L " first through hole opened up in the middle part of pipeline and the rectangle cushion block and realizes water liquid
Load and the load of oil liquid fluid.
By upper, oil pump also presses load pipeline to be connected with axis compressing cylinder while being connected with blending tank by axis, is realizing
Liquid seepage can also provide stable axis pressure load for test specimen while experiment.
Optionally, the gas-loaded channel includes air pump and blending tank, between the air pump and the blending tank successively
It is connected with third six-way valve, first gas flowmeter and third pressure gauge, the third six-way valve is circumscribed with third vacuum tank；
The blending tank connect gas-loaded by " inverted L " first through hole opened up in the middle part of pipeline and the rectangle cushion block.
By upper, air pump also loads pipeline by confining pressure while being connected with blending tank and reaches in cylinder body across fourth hole
Portion can also provide stable confining pressure load realizing for test specimen while gas flow experiment.
Optionally, the gas-liquid separation and collection system include back pressure regulator and gas-liquid separator, the backpressure regulation
Device is connected by L shape the second through-hole pipeline opened up in the middle part of the convex cushion block with the rock sample；
One end of the gas-liquid separator is connected with the back pressure regulator, the other end and second gas flowmeter phase
Connection, the second gas flowmeter other end are provided with gas chromatographicanalyzer.
By upper, have L shape through-hole in the middle part of rectangle cushion block and convex cushion block, by pipeline respectively with blending tank and
Back pressure regulator is connected, and more easily realizes the Seepage Experiment to test specimen.
Optionally, the bottom end of the convex cushion block is equipped with spill backing plate, and the convex assembly of the convex cushion block is in described recessed
The bottom of the cylinder body is fixed in the bottom end of the recess of shape backing plate, the spill backing plate.
By upper, can be fixed on test specimen is more stable in cylinder body.
Optionally, the lower end of the gas-liquid separator is equipped with liquid-collecting bottle.
By upper, experimental provision provided by the invention can carry out individual event Seepage Experiment measurement absolute permeability, can also be into
The liquid phase pair during filled drive coal-bed gas is flowed and is simulated in the opposite infiltration of gas-liquid two-phase in the original water saturation coal seam of row
The two phase fluid flow of seepage flow situation is tested, while can also carry out three phase fluid flow measuring effective permeability.Disturbance of the invention
Act on lower more of rock, multiphase porous flow experimental provision can a pump it is dual-purpose, economize on resources, while being added in normal pressures chamber interior
A kind of deformation disturbing rod realizes laterally disturbance by vibration excitor, can be with disturbance suffered by rock in real simulation Practical Project
The influence of influence and heterogeneous fluid to rock permeability.In addition, passing through third six-way valve control by the second six-way valve control shaft pressure
Confining pressure processed controls osmotic pressure by the collective effect of the first six-way valve, the second six-way valve, third six-way valve, so as to more
Accurately obtain rock related coefficient in practical projects and permeability evolution rule.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects, features and advantages of the invention can
It is clearer and more comprehensible, below in conjunction with preferred embodiment, and cooperates attached drawing, detailed description are as follows.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the attached drawing to embodiment is simply situated between below
It continues.
Fig. 1 be the preferred embodiment of the present invention perturbation action under more of rock, multiphase porous flow experimental provision structural representation
Figure.
In figure: 1- water pump；2- oil pump；3- air pump；4- blending tank；The first six-way valve of 5-；The second six-way valve of 6-；7- the three or six
Port valve；8- first pressure gauge；9- second pressure gauge；10- third pressure gauge；The 4th pressure gauge of 11-；The 5th pressure gauge of 12-；13-
Filter；The first fluid flowmeter of 14-；15- first gas flowmeter；16- second liquid flowmeter；The first vacuum tank of 17-；
The second vacuum tank of 18-；19- third vacuum tank；20- axis pressure load pipeline；21- confining pressure loads pipeline；22- axis compressing cylinder；23- ladder
Shape axis presses telescopic rod；24- rectangle cushion block；25- rock sample；26- convex cushion block；27- spill backing plate；28- first through hole；29-
Second through-hole；30- third through-hole；31- fourth hole；32- fifth hole；The first disturbing rod of 33-；34- the first vibration excitor device；
35- the first vibration excitor pedestal；The second disturbing rod of 36-；The second vibration excitor of 37-；38- the second vibration excitor pedestal；39- backpressure regulation
Device；40- gas-liquid separator；41- second gas flowmeter；42- chromatograph；43- liquid-collecting bottle；44- liquid collection opening；45- cylinder body；
The first cable of 46-；The second cable of 47-.
Specific embodiment
The embodiment of the invention will now be described in detail with reference to the accompanying drawings, and as part of this specification passes through
Embodiment illustrates the principle of the present invention, and other aspects of the present invention, feature and its advantage will become by the detailed description
It is very clear.In the attached drawing of institute's reference, the same or similar component is indicated using identical drawing reference numeral in different figures.
It is to be appreciated that the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.
As shown in Figure 1, more of rock, multiphase porous flow experimental provision include: water pump 1 under perturbation action of the invention, it is described
Water pump 1 is connected by stainless steel high-voltage tube with blending tank 4, the lower end of the blending tank 4 equipped with liquid collection opening 44 and with the water
It is successively arranged the first six-way valve 5, filter 13, the first fluid flowmeter 14, first six-way valve 5 from left to right between pump 1
It is circumscribed with first pressure gauge 8 and the first vacuum tank 17.
The blending tank 4 is further connected with oil pump 2 and air pump 3, is successively arranged second between the oil pump 2 and the blending tank 4
Six-way valve 6, second liquid flowmeter 16 and second pressure gauge 9, second six-way valve 6 be circumscribed with the second vacuum tank 18 and
The pressure load pipeline 20 of the axis made of stainless steel high-voltage tube, the axis pressure load pipeline 20 are equipped with the 5th pressure gauge 12 and and axis
Compressing cylinder 22 is connected, and the oil pump 2, the second six-way valve 6, axis pressure load pipeline 20 and axis compressing cylinder 22 constitute axis pressure load system
System.Oil pump 2 also presses load pipeline 20 and 22 phase of axis compressing cylinder by the axis while being connected with the blending tank 4
Even, stable axis pressure load can also be provided while realizing Seepage Experiment for rock sample 25.
It is connected with third six-way valve 7, first gas flowmeter 15, third between the air pump 3 and the blending tank 4 in turn
Pressure gauge 10, the third six-way valve 7 are circumscribed with third vacuum tank 19 and the load pipeline of the confining pressure made of stainless steel high-voltage tube
21, the confining pressure loads and is circumscribed with the 4th pressure gauge 11 and the fourth hole 31 across cylinder body 45 on pipeline 21, the air pump 3,
Third six-way valve 7 and confining pressure load pipeline 21 collectively constitute confining pressure loading system.Air pump 3 be connected with the blending tank 4 it is same
When pipeline 21 also loaded by the confining pressure pass through the fourth hole 31 and reach the inside of the cylinder body 45, realizing that seepage flow is real
Stable confining pressure load can also be provided while testing for rock sample 25.
Axis compressing cylinder 22 in axis pressure loading system is fixed on the top plate of the cylinder body 45, and gas leakage in order to prevent is described
Axis compressing cylinder 22 and the junction of the cylinder body 45 are sealed with electrical adhesive tape, and the axis compressing cylinder 22 is added by axis pressure
It carries pipeline 20 to be connected with second six-way valve 6, the trapezoid shaft pressure telescopic rod 23 of axis compressing cylinder 22 penetrates through on the cylinder body 45
Top plate is connected with the axis compressing cylinder 22, and the lower end of the trapezoid shaft pressure telescopic rod 23 is rectangle cushion block 24, the rectangle cushion block
24 middle parts offer " inverted L " first through hole 28, are longitudinally disposed rock examination between the rectangle cushion block 24 and convex cushion block 26
Part 25 offers the second through-hole of L shape 29, the arrival end of second through-hole 29 and described first in the middle part of the convex cushion block 26
28 lower end face of through-hole, the convex assembly of the convex cushion block 26 is under the recess of spill backing plate 27, the spill backing plate 27
The bottom of cylinder body 45 is fixed at end, and 45 left upper portion of cylinder body offers the third with the 28 inlet face of first through hole
Through-hole 30 passes through the third through-hole 30, and the first through hole 28, which is connect by pipeline with the blending tank 4, realizes that fluid adds
It carries, 45 left side central portion of cylinder body offers the fourth hole 31 for loading confining pressure, and the fourth hole 31 is enclosed by described
Pressure load pipeline 21 is connected with the third six-way valve 7, and 45 lower right of cylinder body is provided with fifth hole 32, and the described 5th is logical
The outlet end face in hole 32 and second through-hole of L shape 29, passes through the fifth hole 32, and second through-hole 29 passes through pipe
It is connected to the back pressure regulator 39 of gas-liquid separation and collection system, it, respectively will be described in order to guarantee the leakproofness of the cylinder body 45
Third through-hole 30, fourth hole 31, fifth hole 32 and the contact position of pipeline are sealed with electrical adhesive tape.Wherein, the water
Pump 1 and blending tank 4 constitute water and load channel, are disposed with the first six-way valve 5, filter 13, first on water load channel
Fluid flowmeter 14, first six-way valve 5 are circumscribed with first pressure gauge 8 and the first vacuum tank 17.The oil pump 2 and blending tank
4 constitute oil liquid load channels, oil liquid load channel on be disposed with the second six-way valve 6, second liquid flowmeter 16 and
Second pressure gauge 9, second six-way valve 6 is circumscribed with the second vacuum tank 18, and water load channel and oil liquid load channel are total
Isomorphism loads channel at fluid of the invention.The air pump 3 and blending tank 4 constitute gas-loaded channel, in gas-loaded channel
On be connected with third six-way valve 7, first gas flowmeter 15 and third pressure gauge 10 in turn, the third six-way valve 7 is circumscribed with
Third vacuum tank 19.It is gentle to the injection liquid of rock sample 25 respectively that channel and gas-loaded channel are loaded by above-mentioned fluid
Body, influence of the heterogeneous fluid to rock permeability suffered by rock in real simulation Practical Project.
The bottom left and right ends of cylinder body 45 are respectively arranged with the first vibration excitor pedestal 35 and the second vibration excitor pedestal 38, described
The first vibration excitor 34 and the second vibration excitor 37, institute are respectively arranged with above first vibration excitor pedestal 35 and the second vibration excitor pedestal 38
It states and is respectively arranged with L shape the first disturbing rod 33 and the second disturbing rod above the first vibration excitor 34 and second vibration excitor 37
36, first disturbing rod 33 and 36 end of the second disturbing rod are connected to the middle part of the rock sample 25, first exciting
Device 34 and the second vibration excitor 37 are all made of high-precision vibration excitor, can provide different amplitudes for rock sample 25, different frequency
It disturbs, the bottom for being mounted on cylinder body 45 is terminated under first vibration excitor 34 and passes through the first vibration excitor pedestal 35
The first cable 46, be terminated under second vibration excitor 37 and be mounted on bottom of device and pass through second vibration excitor bottom
Second cable 47 of seat 38 realizes disturbance load by cable.Above-mentioned first vibration excitor pedestal 35 and the second vibration excitor pedestal 38,
First vibration excitor 34 and the second vibration excitor 37 and the first disturbing rod 33 and the second disturbing rod 36 constitute perturbed system, to try rock
Part 25 provides the disturbance of different amplitudes, different frequency, disturbing influence suffered by rock in real simulation Practical Project.
Gas-liquid separation and collection system in the present invention include back pressure regulator 39 and gas-liquid separator 40, the back pressure tune
Section device 39 is connected by second through-hole 29 and the pipeline of the fifth hole 32 with the rock sample 25.The gas-liquid point
Left end from device 40 is connected with the back pressure regulator 39, and the lower end of gas-liquid separator 40 is provided with liquid-collecting bottle 43, the gas-liquid
The right end of separator 40 is connected with second gas flowmeter 41, and the right end of the second gas flowmeter 41 is provided with gas-chromatography
Analyzer 42.
Experimental provision provided by the invention can carry out individual event Seepage Experiment measurement absolute permeability, can also carry out original
In water saturation coal seam gas-liquid two-phase it is opposite infiltration flowing and simulation filled drive coal-bed gas during liquid phase to seepage flow feelings
The two phase fluid flow of condition is tested, while can also carry out three phase fluid flow measuring effective permeability, specific below by embodiment
Explanation.
Experimental program: " oil-water-gas " three-phase system Seepage Experiment, specific steps are as follows:
One, structure as shown in Figure 1 assembles experimental provision, checking experiment device leakproofness everywhere, it is ensured that device
It works normally.
Two, rock sample is prepared, the rectangle cushion block 24 and convex cushion block are longitudinally disposed at after rock sample 25 is dried
Between 26, for the air-tightness for guaranteeing test specimen, the phenomenon of leakage that leaks air in experimentation is prevented, by one section of circular tube shaped shrinkable sleeve
On rock sample 25, heat-shrink tube is uniformly blown tightly with hair dryer, to guarantee that the two is uniformly adjacent to.
Three, the pressure of the axis according to needed for test requirements document calculation testing piece and confining pressure, open second six-way valve 6, to axis compressing cylinder
Oiling in 22, experiment are kerosene with oil, are adjusted axis pressure to examination by the 5th pressure gauge 12 of observation and the second six-way valve 6 of adjustment
It tests after necessary requirement and closes the second six-way valve 6 and guarantee that axis pressure is constant.
Four, it opens the third six-way valve 7 and injects gas into cylinder body 45, testing gases used is high-purity nitrogen, is led to
It crosses the 4th pressure gauge 11 of observation and adjusts after third six-way valve 7 adjusts confining pressure to test necessary requirement and close third six-way valve
7 guarantee that confining pressure is constant.
Five, vibration excitor is opened, provides disturbance needed for test for rock sample 25.
Six, it opens third six-way valve 7 and oily saturated process is carried out to the test specimen of wettability treatment using constant pressure, the duration is
72 hours.
Seven, after adjusting pressure difference needed for back pressure regulator 39 reaches test according to requirement of experiment after be saturated, the is opened
One six-way valve 5 is filled the water to rock sample 25, and test water is distilled water, adjusts water injection time, water flooding regime according to test requirements document
Constant pressure injection or top-up injection two ways can be used according to actually required.
Eight, the first six-way valve 5 is closed after filling the water, and is opened third flowing valve 7 and is injected gas into rock sample 25, together
When open gas-liquid separator 40, according to actual tests require can using constant pressure inject two kinds of sides of gas or top-up injection gas
Formula.
Nine, every 10 minutes record gases and the discharge of mixing liquid, the one or six is closed after going out there is no water oil stream
Port valve 5 records the measurement result that second gas flowmeter 41 obtains and the mixing liquid being collected into is passed through static, layering, extraction
The respective volume for obtaining water and oil is recorded.
Ten, the liquid collection opening 44 of 4 lower end of blending tank setting is opened, residual liquid volume in blending tank is collected, by above-mentioned
Mode respectively obtains the volume of water, oil.
11, gas influx is obtained by the data that first gas flowmeter 15 records, passes through the first fluid flowmeter
14, the data that second liquid flowmeter 16 records obtain water and oil stream as difference with water remaining in blending tank, oil volume respectively
Enter amount, calculates the effective permeability of gas and water, oil respectively by Darcy's law.
12, test of many times is carried out by the way that different axis pressures, confining pressure, forcing frequency and disturbance amplitude is arranged, measured corresponding
Data obtain experimental rules.
Blending tank 4 in the present invention is opened to be connected with the oil pump 2, air pump 3, water pump 1 and cylinder body 45 respectively there are four port
It connects, single phase fluid flow experiment, two phase fluid flow experiment and three phase fluid flow experiment may be implemented, while the lower end of the blending tank 4 is set
It is equipped with liquid collection opening 44, is convenient for measuring the liquid remained in blending tank in experimentation, improves experimental precision.
In addition, being subject to during the experiment in the position for being provided with through-hole using electrical adhesive tape close to guarantee experiment air-tightness
Envelope, guarantee the air-tightness of experimental provision, be excited at the same time device amplitude should not be arranged it is excessive, prevent to the cylinder body generate disturbance shadow
It rings, influences experimental result.
The oil pump of more of rock, multiphase porous flow experimental provision with blending tank while being connected under perturbation action of the invention
It also presses load pipeline to be connected with axis compressing cylinder by axis, can also be provided while realizing liquid seepage experiment for test specimen stable
Axis pressure load, air pump also load pipeline by confining pressure while being connected with blending tank and reach in cylinder body across fourth hole
Portion can also provide stable confining pressure load while realizing gas flow experiment for test specimen, can one pump it is dual-purpose economize on resources,
A kind of deformation disturbing rod is added in normal pressures chamber interior simultaneously, laterally disturbance is realized by vibration excitor, it can be with real simulation reality
The influence of disturbing influence suffered by rock and heterogeneous fluid to rock permeability in the engineering of border.In addition, passing through the second six-way valve
Control shaft pressure, by third six-way valve control confining pressure, by the first six-way valve, the second six-way valve, third six-way valve common work
With control osmotic pressure, rock related coefficient in practical projects and permeability evolution rule are obtained so as to more accurate
Rule.
The above is a preferred embodiment of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, it is noted that for those skilled in the art, without departing from the principle of the present invention, may be used also
To make several improvement and variation, these, which improve and change, is also considered as protection scope of the present invention.
Claims (10)
1. more of rock, multiphase porous flow experimental provision under a kind of perturbation action characterized by comprising
Axis presses loading system, for applying axis pressure to rock sample (25)；
Confining pressure loading system, for applying confining pressure to rock sample (25)；
Perturbed system, for providing the disturbance of different amplitudes, different frequency for rock sample (25)；
Fluid loads channel, for injecting liquid into rock sample (25)；
Gas-loaded channel, for injecting gas into rock sample (25)；
Gas-liquid separation and collection system are obtained for will be separately collected by gas after rock sample (25) and liquid
The effective permeability of air-liquid.
2. more of rock, multiphase porous flow experimental provision under perturbation action as described in claim 1, which is characterized in that the rock
Stone test specimen (25) is placed on the center position of cylinder body (45) vertically, and the top and bottom of the rock sample (25) are respectively by square
Shape cushion block (24) and convex cushion block (26) are supported.
3. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that the axis
Pressure loading system includes the pressure load of the axis made of stainless steel high-voltage tube pipeline (20), the second six-way valve (6), oil pump (2), axis pressure
Oil cylinder (22)；
The axis compressing cylinder (22) is connected by axis pressure load pipeline (20), the second six-way valve (6) with the oil pump (2)
It connects, trapezoid shaft pressure telescopic rod (23) of the axis compressing cylinder (22) penetrates through the top plate and the rectangle cushion block of the cylinder body (45)
(24) it is connected；
Axis pressure load pipeline (20) is equipped with the 5th pressure gauge (12).
4. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that described to enclose
Pressure loading system includes the load of the confining pressure made of stainless steel high-voltage tube pipeline (21), third six-way valve (7), air pump (3)；
One end of confining pressure load pipeline (21) is connected by third six-way valve (7) with the air pump (3), and the other end is worn
Cross the fourth hole (31) of the cylinder body (45)；
Confining pressure load pipeline (21) is equipped with the 4th pressure gauge (11).
5. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that described to disturb
Dynamic system includes being located at the cylinder body (45) bottom left and right ends and symmetrically arranged vibration excitor pedestal (35,38), the exciting
It is provided with vibration excitor (34,37) above device pedestal (35,38), is provided with L shape disturbing rod above the vibration excitor (34,37)
The end of (33,36), the disturbing rod (33,36) is connected to the middle part of the rock sample (25).
6. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that the stream
Body load channel includes oil liquid load channel and water load channel；
Water load channel includes water pump (1) and blending tank (4), and the is successively arranged between the water pump (1) and blending tank (4)
One six-way valve (5), filter (13), the first fluid flowmeter (14), first six-way valve (5) are circumscribed with first pressure gauge
(8) and the first vacuum tank (17)；
Oil liquid load channel includes oil pump (2) and blending tank (4), between the oil pump (2) and the blending tank (4) successively
Equipped with the second six-way valve (6), second liquid flowmeter (16) and second pressure gauge (9), second six-way valve (6) is circumscribed with
Second vacuum tank (18)；
The blending tank (4) is connect real by " inverted L " first through hole (28) opened up in the middle part of pipeline and the rectangle cushion block (24)
Existing water liquid load and the load of oil liquid fluid.
7. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that the gas
It includes air pump (3) and blending tank (4) that body, which loads channel, is connected with third in turn between the air pump (3) and the blending tank (4)
Six-way valve (7), first gas flowmeter (15) and third pressure gauge (10), the third six-way valve (7) are circumscribed with third pressure stabilizing
Tank (19)；
The blending tank (4) connect gas by " inverted L " first through hole (28) opened up in the middle part of pipeline and the rectangle cushion block (24)
Body load.
8. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that the gas
Liquid separation includes back pressure regulator (39) and gas-liquid separator (40) with collection system, and the back pressure regulator (39) passes through described
The second through-hole of L shape (29) opened up in the middle part of convex cushion block (26) pipeline is connected with the rock sample (25)；
One end of the gas-liquid separator (40) is connected with the back pressure regulator (39), the other end and second gas flow
Meter (41) is connected, and second gas flowmeter (41) other end is provided with gas chromatographicanalyzer (42).
9. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 2, which is characterized in that described convex
The bottom end of shape cushion block (26) is equipped with spill backing plate (27), and the convex assembly of the convex cushion block (26) is in the spill backing plate (27)
Recess, the bottom of the cylinder body (45) is fixed in the bottom end of the spill backing plate (27).
10. more of rock, multiphase porous flow experimental provision under perturbation action as claimed in claim 8, which is characterized in that the gas
The lower end of liquid/gas separator (40) is equipped with liquid-collecting bottle (43).
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| CN201811090141.1A CN109211753B (en) | 2018-09-18 | 2018-09-18 | Multi-field and multi-phase seepage experimental device for rock under disturbance action |
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| CN201811090141.1A CN109211753B (en) | 2018-09-18 | 2018-09-18 | Multi-field and multi-phase seepage experimental device for rock under disturbance action |
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| CN109211753B CN109211753B (en) | 2021-02-05 |
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| CN110029978A (en) * | 2019-04-29 | 2019-07-19 | 中国煤炭地质总局勘查研究总院 | A kind of super anti-reflection system of mangneto forced vibration |
| CN110082277A (en) * | 2019-05-28 | 2019-08-02 | 辽宁工程技术大学 | It is a kind of can periodic perturbation three axis multiphase porous flow experimental rig of coal petrography and test method |
| CN110940610A (en) * | 2019-11-27 | 2020-03-31 | 山东科技大学 | Broken rock nonlinear seepage test system and method |
| CN111122416A (en) * | 2020-01-17 | 2020-05-08 | 同济大学 | Test system for measuring gas permeation parameters of ultra-low permeability medium under multi-field multi-phase coupling condition |
| CN111693441A (en) * | 2020-07-22 | 2020-09-22 | 中国科学院武汉岩土力学研究所 | Test device and test method for simulating rock seepage |
| CN111965091A (en) * | 2020-09-17 | 2020-11-20 | 中南大学 | Rock seepage characteristic testing device and method under thermal shock and dynamic shock coupling |
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| CN114383944A (en) * | 2022-01-19 | 2022-04-22 | 辽宁工业大学 | Deep coal rock fluid-solid coupling creep experiment device and method under mining disturbance |
| CN114563326A (en) * | 2022-03-18 | 2022-05-31 | 贵州大学 | Broken rock mass seepage characteristic simulation device, system and method |
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| CN109752306A (en) * | 2019-03-22 | 2019-05-14 | 中国科学院武汉岩土力学研究所 | Dynamic load perturbation process rock permeability test method and its test macro |
| CN110029978A (en) * | 2019-04-29 | 2019-07-19 | 中国煤炭地质总局勘查研究总院 | A kind of super anti-reflection system of mangneto forced vibration |
| CN110082277B (en) * | 2019-05-28 | 2021-05-18 | 辽宁工程技术大学 | Coal rock triaxial multiphase seepage test device capable of periodically disturbing and test method |
| CN110082277A (en) * | 2019-05-28 | 2019-08-02 | 辽宁工程技术大学 | It is a kind of can periodic perturbation three axis multiphase porous flow experimental rig of coal petrography and test method |
| CN110940610A (en) * | 2019-11-27 | 2020-03-31 | 山东科技大学 | Broken rock nonlinear seepage test system and method |
| CN111122416B (en) * | 2020-01-17 | 2021-12-07 | 同济大学 | Test system for measuring gas permeation parameters of ultra-low permeability medium under multi-field multi-phase coupling condition |
| CN111122416A (en) * | 2020-01-17 | 2020-05-08 | 同济大学 | Test system for measuring gas permeation parameters of ultra-low permeability medium under multi-field multi-phase coupling condition |
| CN113514626A (en) * | 2020-04-09 | 2021-10-19 | 中国石油化工股份有限公司 | Experimental device and experimental method for measuring rock expansion change rule |
| CN111693441A (en) * | 2020-07-22 | 2020-09-22 | 中国科学院武汉岩土力学研究所 | Test device and test method for simulating rock seepage |
| CN111965091A (en) * | 2020-09-17 | 2020-11-20 | 中南大学 | Rock seepage characteristic testing device and method under thermal shock and dynamic shock coupling |
| CN114062142A (en) * | 2021-11-30 | 2022-02-18 | 重庆大学 | High-voltage electric pulse in-situ permeability-increasing gas-bearing reservoir two-phase seepage test method |
| CN114062142B (en) * | 2021-11-30 | 2022-08-19 | 重庆大学 | High-voltage electric pulse in-situ permeability-increasing gas-bearing reservoir two-phase seepage test method |
| CN114383944A (en) * | 2022-01-19 | 2022-04-22 | 辽宁工业大学 | Deep coal rock fluid-solid coupling creep experiment device and method under mining disturbance |
| CN114563326A (en) * | 2022-03-18 | 2022-05-31 | 贵州大学 | Broken rock mass seepage characteristic simulation device, system and method |
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