CN104034644B - A kind of can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity - Google Patents
A kind of can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity Download PDFInfo
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Abstract
The present invention disclose a kind of can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, comprise gas seepage system and three axle formula pilot systems; Gas seepage system comprises bomb, and bomb is provided with bomb control valve, and the outlet of bomb control valve branches into upstream gas pipeline and gas downstream pipeline; Upstream gas pipeline is provided with upstream gas pressure meter, upstream inlet valve; Gas downstream pipeline is provided with drain tap; Upstream gas pipeline converges with gas downstream pipeline and is connected; Three axle formula pilot systems comprise triaxial pressure room, and triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between drain tap and upstream inlet valve, and respectively with upstream gas pipeline, gas downstream pipeline connection. This device can realize the quick mensuration of different lithology rock porosity, can use the steady state method of the multiple percolating medium such as water, gas and the rate of permeation of impulse method measurement rock, and testing installation precision height, permeability survey precision reaches 10-24m2��
Description
Technical field
The present invention relates to the testing apparatus when stress seepage flow of a kind of complexity, particularly relate to one can Quick Measurement porosity, and realize the stress seepage flow coupling test device of heterogeneous percolating medium.
Background technology
Along with the development of national economy, demand for the energy is increasing, energy problem has risen to national strategy aspect, the exploitation of current subterranean resource has been not limited to the traditional energies such as oil, the exploitation of the new forms of energy such as shale gas is also progressively carrying out, but the process of resource exploitation must in the face of the stability problem of engineering when complex stress and seepage flow, simultaneously in the current numerous Hydraulic and Hydro-Power Engineering of this Ye Shi China institute must in the face of and the problem of solution. And this kind of seepage flow is not single-phase liquid seepage or single-phase gas seepage flow, it is more the complexcase that gas seepage flow and liquid seepage exist simultaneously, simultaneously owing to rock has changeable characteristic sum lithology, its rate of permeation has very big difference, part rock is due to the characteristic of hyposmosis, liquid is difficult to infiltration in the past, it is necessary to suitable gas could measure its rate of permeation as permeating medium.
Current stress seepage flow coupling test device, the single-phase percolating medium of many uses, and in existing heterogeneous percolating medium stress seepage flow coupling test device, there is no independent porosity measurement system, porosity needs to measure in addition or Measuring Time length, low precision, the precision simultaneously measuring tight rock rate of permeation is inadequate, it is difficult to meet the test request of tight rock.
Consequently, it is desirable to a kind of can Quick Measurement porosity can carry out again heterogeneous percolating medium stress seepage flow coupling comprehensive test equipment solve the problem.
Summary of the invention
Goal of the invention: the present invention is directed to existing stress seepage flow coupling test device Problems existing, it provides a kind of can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity.
Technical scheme: for solving the problems of the technologies described above, the following technical scheme of the employing of the present invention:
Can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, comprise gas seepage system and three axle formula pilot systems;
Gas seepage system comprises bomb, and bomb is provided with bomb control valve, and the outlet of bomb control valve branches into upstream gas pipeline and gas downstream pipeline;
Upstream gas pipeline is provided with upstream gas pressure meter, upstream inlet valve; Gas downstream pipeline is provided with drain tap; Upstream gas pipeline converges with gas downstream pipeline and is connected;
Three axle formula pilot systems comprise triaxial pressure room, and triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between drain tap and upstream inlet valve, and respectively with upstream gas pipeline, gas downstream pipeline connection.
Further, three axle formula pilot systems also comprise axial compression pump, axial compression pipeline, confined pressure pump and confined pressure pipeline, triaxial pressure outdoor is enclosed and is comprised axial compression room and confined pressure room, axial compression room is connected with axial compression pump by axial compression pipeline, confined pressure room is connected with confined pressure pump by confined pressure pipeline, axial compression pipeline is provided with axial compression meter and axial compression valve, and confined pressure pipeline is provided with confined pressure meter and confined pressure valve.
In order to device can be made to be controlled better, ensure the accuracy of test, from bomb, upstream gas pipeline is provided with upstream gas bottle valve, upstream gas pressure meter, upstream inlet valve successively; From bomb, gas downstream pipeline is provided with downstream gas cylinder valve, drain tap, downstream gas pressure meter and downstream inlet valve successively; Triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between downstream inlet valve and upstream inlet valve, and with upstream gas pipeline and gas downstream pipeline connection.
In order to the accuracy of the further control survey of energy, the upstream gas pipeline between downstream inlet valve and upstream inlet valve is provided with the first valve, pressure warning unit and the 2nd valve successively.
In order to further facilitate test, ensure test accuracy, upstream gas pressure meter on upstream gas pipeline and be provided with the upstream gas cylinder with upstream gas pipeline connection between upstream inlet valve; Downstream gas pressure meter on gas downstream pipeline and be provided with the downstream gas cylinder with gas downstream pipeline connection between downstream inlet valve.
Above-mentioned can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, also comprise liquid seepage system, liquid seepage system comprises liquor pump, reservoir, upstream liquid pipeline and downstream liquid pipeline, and liquor pump is connected with three axle formula pilot systems by upstream liquid pipeline; Reservoir is connected with three axle formula pilot systems by downstream liquid pipeline; Pump up from liquid, upstream liquid pipeline is provided with liquid control valve door, upstream liquid pressure warning unit and upstream liquid flowing valve successively; From reservoir, downstream liquid pipeline is provided with draining valve, downstream liquid pressure warning unit and downstream fluid valve successively. Can have more like this and need to select liquid seepage medium.
Liquid seepage system also comprises liquid storage pipe road, upstream liquid case and downstream liquid case; One end, liquid storage pipe road and upstream liquid pipeline connection, connectivity part are between upstream liquid pressure warning unit and upstream liquid flowing valve, and the liquid storage pipe road the other end and downstream liquid pipeline connection, connectivity part are between downstream liquid pressure warning unit and downstream fluid valve; From upstream liquid pipeline, liquid storage pipe road is provided with upstream Cistern valve, water tank connection valve and downstream Cistern valve successively;Upstream liquid case is connected with liquid storage pipe road, and connectivity part also connects between valve at upstream Cistern valve and water tank; Downstream liquid case is connected with liquid storage pipe road, and connectivity part also connects at water tank between valve and downstream Cistern valve.
The precision of downstream gas pressure meter, upstream gas pressure meter and pressure warning unit reaches 10-4MPa, permeability survey precision reaches 10-24m2. Can further ensure the accuracy of test like this.
Gases used preferably high purity argon in bomb.
In said apparatus, each pipeline material is preferably high-strength alloy material.
Useful effect: the present invention provide a kind of can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, can the change procedure of study of rocks material under the multiple percolating medium stress seepage flow coupling such as water, gas and rule, the rate of permeation that the multiple method such as steady state method and impulse method measures rock material can be realized, and the Quick Measurement of rock material porosity can be realized, have that function is abundant, precision is accurate, reliable results, it is to increase the advantage of test efficiency.
Accompanying drawing explanation
Fig. 1 is that a kind of of the present invention can the structural representation of heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity;
Fig. 2 is porosity measurement system;
Fig. 3 is gas seepage system;
Fig. 4 is liquid seepage system;
In figure, bomb 1, reservoir 2, liquor pump 3, downstream liquid case 4, upstream liquid case 5, upstream gas cylinder 6, downstream gas cylinder 7, axial compression pump 8, axial compression room 9, confined pressure pump 10, confined pressure room 11, rubber coating 12, axial compression strainometer 13, ring is to strainometer 14, data acquisition-and-recording system 15, bomb control valve 16, downstream gas cylinder valve 17, upstream gas bottle valve 18, draining valve 19, liquid control valve door 20, drain tap 21, downstream inlet valve 22, downstream Cistern valve 23, downstream fluid valve 24, water tank connects valve 25, upstream Cistern valve 26, upstream liquid flowing valve 27, upstream inlet valve 28, 2nd valve 29, first valve 30, axial compression valve 31, confined pressure valve 32, downstream gas pressure meter 33, downstream liquid pressure warning unit 34, upstream liquid pressure warning unit 35, upstream gas pressure meter 36, pressure warning unit 37, axial compression meter 38, confined pressure meter 39.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of the various equivalent form of values of the present invention is all fallen within the application's claims limited range by those skilled in the art.
As Figure 1-4 can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, comprise gas seepage system and three axle formula pilot systems;
Gas seepage system comprises bomb 1, and bomb 1 is provided with bomb control valve 16, and the outlet of bomb control valve 16 branches into upstream gas pipeline and gas downstream pipeline;
Upstream gas pipeline is provided with upstream gas pressure meter 36, upstream inlet valve 28; Gas downstream pipeline is provided with drain tap 21; Upstream gas pipeline converges with gas downstream pipeline and is connected;
Three axle formula pilot systems comprise triaxial pressure room, and triaxial pressure room comprises rubber coating 12, axial strain meter 13, ring to strainometer 14, data acquisition-and-recording system 15; Data acquisition-and-recording system 15 coupling shaft forms data handling system to strainometer 13, ring to strainometer 14;Triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between drain tap 21 and upstream inlet valve 28, and respectively with upstream gas pipeline, gas downstream pipeline connection.
Above-mentioned triaxial pressure room, is contained in rubber coating 12 by rock sample, and ring is wrapped in outside rubber coating 12 to strainometer 14, and in record process of the test, the ring of rock sample is to strain, and axial strain meter 13 is parallel with rubber coating 12, the axial strain of rock sample after record pressurization.
Three axle formula pilot systems also comprise axial compression pump 8, axial compression pipeline, confined pressure pump 10 and confined pressure pipeline, triaxial pressure outdoor is enclosed and is comprised axial compression room 9 and confined pressure room 11, axial compression room 9 is connected with axial compression pump 8 by axial compression pipeline, confined pressure room 11 is connected with confined pressure pump 10 by confined pressure pipeline, axial compression pipeline is provided with axial compression meter 38 and axial compression valve 31, and confined pressure pipeline is provided with confined pressure meter 39 and confined pressure valve 32.
From bomb 1, upstream gas pipeline is provided with upstream gas bottle valve 18, upstream gas pressure meter 36, upstream inlet valve 28 successively; From bomb 1, gas downstream pipeline is provided with downstream gas cylinder valve 17, drain tap 21, downstream gas pressure meter 33 and downstream inlet valve 22 successively; Triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between downstream inlet valve 22 and upstream inlet valve 28, and with upstream gas pipeline and gas downstream pipeline connection.
Upstream gas pipeline between downstream inlet valve 22 and upstream inlet valve 28 is provided with the first valve 30, pressure warning unit 37 and the 2nd valve 29 successively.
Upstream gas pressure meter 36 on upstream gas pipeline and be provided with the upstream gas cylinder 6 with upstream gas pipeline connection between upstream inlet valve 28; Downstream gas pressure meter 33 on gas downstream pipeline and be provided with the downstream gas cylinder 7 with gas downstream pipeline connection between downstream inlet valve 22.
Above-mentioned can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, also comprise liquid seepage system, liquid seepage system comprises liquor pump, reservoir, upstream liquid pipeline and downstream liquid pipeline, and liquor pump is connected with three axle formula pilot systems by upstream liquid pipeline; Reservoir is connected with three axle formula pilot systems by downstream liquid pipeline; Pump up from liquid, upstream liquid pipeline is provided with liquid control valve door 20, upstream liquid pressure warning unit 35 and upstream liquid flowing valve 27 successively; From reservoir, downstream liquid pipeline is provided with draining valve 19, downstream liquid pressure warning unit 34 and downstream fluid valve 24 successively.
Liquid seepage system also comprises liquid storage pipe road, upstream liquid case and downstream liquid case; One end, liquid storage pipe road and upstream liquid pipeline connection, connectivity part are between upstream liquid pressure warning unit 35 and upstream liquid flowing valve 27, and the liquid storage pipe road the other end and downstream liquid pipeline connection, connectivity part are between downstream liquid pressure warning unit 34 and downstream fluid valve 24; From upstream liquid pipeline, liquid storage pipe road is provided with upstream Cistern valve 26, water tank connection valve 25 and downstream Cistern valve 23 successively; Upstream liquid case is connected with liquid storage pipe road, and connectivity part also connects between valve 25 at upstream Cistern valve 26 and water tank; Downstream liquid case is connected with liquid storage pipe road, and connectivity part also connects at water tank between valve 25 and downstream Cistern valve 23.
Above-mentioned bomb 1, upstream gas cylinder 6, upstream gas pressure meter 36, pressure warning unit 37, first valve 30, pressure warning unit 37 and the 2nd valve 29, bomb control valve 16, upstream gas bottle valve 18 form porosity measurement system.
Above-mentioned triaxial pressure room, is arranged with axial strain meter 13 and ring outward to strainometer 14, and data acquisition-and-recording system 15 coupling shaft is to strainometer 13, ring to strainometer 14 and each pressure warning unit composition data handling system.
The precision of above-mentioned each pressure warning unit reaches 10-4MPa, permeability survey precision reaches 10-24m2��
Gases used in bomb 1 is high purity argon.
As shown in Figure 1, the method for Quick Measurement porosity is as follows:
1), according to graphic technique connect testing apparatus, and close all valves;
2), be the accuracy of warranty test, first instrument is corrected, air-locked metal-like is put into triaxial test system.
3), adding confined pressure stabilizes it in fixed value to preset value closedown confined pressure valve, open upstream gas bottle valve 18, upstream inlet valve 28, the 2nd valve 29, first valve 30, drain tap 21 all pipelines are connected with external atmosphere pressure, by clean for the gaseous emission of instrument internal. High-precision pressure 37 table displayed value is 0.
4), valve-off upstream inlet valve the 28, the 2nd valve 29, first valve 30, drain tap 21, open bomb control valve 16 and upstream gas bottle valve 18, gas entered. Because of the restriction of barometric range and security consideration, the reading of upstream gas pressure meter 36 controls at about 1MPa.
5), now close bomb control valve 16 and upstream gas bottle valve 18, through making upstream gas pressure meter 36 stable reading after a while and record stable data and count
6) valve downstream air intake valve 28, the 2nd valve 29, first valve 30, is opened so that gas is at pipeline internal diffusion. Through making weather gage stable reading after a while and record reading
7) conduit volume V in system, is calculated2��
8), the rock sample after oven dry is loaded triaxial test system;
9), open bomb control valve 16, upstream inlet valve 18, after high pressure gas are injected upstream gas cylinder 6, close bomb control valve 16, upstream gas bottle valve 18;
10) the reading P of upstream gas pressure meter 36, is recorded1;
11), open upstream inlet valve 28, the 2nd valve 29, first valve 30, make high purity argon fully enter rock sample;
12) number of degrees P of high precision weather gauge 37, is recorded2;
13), the volume V of upstream gas cylinder 61, conduit volume V in porosity measurement system2, it is known that, then the volume V of rock sample void3Try to achieve by Boyle's law, P1*V1=P2*(V1+V2+V3), then
14), then the porosity of rock sample equals V3/ V, V are the standard volume of rock sample;
15), measure complete.
Steady state method:
1), according to graphic technique connect testing apparatus, and close all valves;
2), the rock sample after oven dry is loaded triaxial test system;
3), opening confined pressure control valve 32, confined pressure pump 10 adds axial compression to set(ting)value to confined pressure room 11, closes confined pressure pump 10, opens axial compression control valve 31, and axial compression pump 8 adds axial compression to set(ting)value to axial compression room 9, closes axial compression pump 8.
4), percolating medium is selected, as used water as percolating medium, then open water discharging valve 19, liquor pump control valve 20, upstream inlet valve 27, downstream flowing water Valve 24, apply constant pressure in upstream, after upstream pressure 35, downstream liquid pressure warning unit 34 are stablized, gather the flow by sample. As used argon gas for percolating medium, then open bomb control valve 16, valve 22 is given vent to anger in upstream gas bottle valve 18, upstream inlet valve 28, downstream and drain tap 21 applies constant pressure in upstream, gathers the sample flow passed through.
5), rate of permeation is calculated according to Darcy's law
In formula,For the observed pressure value of upstream liquid case or upstream gas cylinder, P1For upstream end original pressure, �� P1For upstream pressure change, �� t changes institute's elapsed time for forming upstream pressure, and L is specimen length, and A is sample area, k rate of permeation, and V is the volume on rock sample ground, P0For standard atmospheric pressure (0.1MPa), �� is the viscosity (Pa s) of water or argon gas.
6), rate of permeation can therefore be calculated.
Impulse method:
1), according to graphic technique connect testing apparatus, and close all valves;
2) after, drying, rock sample loads triaxial test system;
3), opening confined pressure control valve 32, confined pressure pump 10 adds axial compression to set(ting)value to confined pressure room 11, closes confined pressure pump 10, opens axial compression control valve 31, and axial compression pump 8 adds axial compression to set(ting)value to axial compression room 9, closes axial compression pump 8.
4), percolating medium is selected, as used water as percolating medium, then beat liquor pump control valve opening door 20, downstream flowing water Valve 24, fluid box connection valve 25, upstream liquid case valve 26, upstream inlet valve 27, liquor pump 3 is used to inject water in upstream fluid box 5, downstream liquid case 4, make the force value of downstream liquid pressure warning unit 34, upstream liquid pressure warning unit 35 equal, and equaling set(ting)value, closing liquid case connects valve 25; As used argon gas for percolating medium, then open bomb control valve 16, valve 22, upstream inlet valve 28 are given vent to anger in downstream inlet valve 17, upstream gas bottle valve 18, downstream, bomb 1 is used to inject argon gas in upstream gas bottle 6, downstream gas cylinder 7, make the force value of high-precision pressure meter 33, high-precision pressure meter 36 equal, and equal set(ting)value, valve-off 17.
5), according to step 4) in selected by percolating medium then, use liquor pump 3 to add water to upstream liquid case 5 pressure to upstream fluid box 5 and equal set(ting)value, or use bomb 1 to add argon gas to the pressure of upstream gas bottle 6 to upstream gas bottle 6 to equal set(ting)value, make upstream and downstream mineralization pressure poor.
6), Usage data collection and register system record downstream manometer 34, upstream liquid pressure warning unit 35, downstream gas pressure meter 33, upstream gas pressure meter 36 value, and calculate upstream liquid case 5 with pressure difference with downstream gas cylinder 7 of the pressure difference of downstream liquid case 4 or upstream gas cylinder 6.
7) rate of permeation of sample in testing data experiment with computing process, is utilized.
8), rate of permeation is calculated according to Darcy's law
�� P (t)=PU-Pd
�� P (t)=(-�� is t) for �� P*exp
9), P in formulauFor the observed pressure value of upstream liquid case or upstream gas cylinder, �� is reduction coefficient, PdFor the observed pressure value of downstream liquid case or downstream gas cylinder, �� P (t) is upstream and downstream pressure difference, and t is for forming upstream and downstream pressure difference institute elapsed time, and �� is water or the viscosity factor of argon gas, and L is specimen length, and A is sample area, and k is rate of permeation, VuFor the capacity of upstream liquid case or upstream gas cylinder, VdFor the capacity of downstream liquid case or downstream gas cylinder, PfFor the pressure after system balancing.
10), rate of permeation can therefore be calculated.
Claims (8)
1. one kind can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterised in that: comprise gas seepage system and three axle formula pilot systems;
Gas seepage system comprises bomb (1), and bomb (1) is provided with bomb control valve (16), and the outlet of bomb control valve (16) branches into upstream gas pipeline and gas downstream pipeline;
Upstream gas pipeline is provided with upstream gas pressure meter (36), upstream inlet valve (28);Gas downstream pipeline is provided with drain tap (21); Upstream gas pipeline converges with gas downstream pipeline and is connected;
Three axle formula pilot systems comprise triaxial pressure room, triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between drain tap (21) and upstream inlet valve (28), and respectively with upstream gas pipeline, gas downstream pipeline connection;
From bomb (1), upstream gas pipeline is provided with upstream gas bottle valve (18), upstream gas pressure meter (36), upstream inlet valve (28) successively; From bomb (1), gas downstream pipeline is provided with downstream gas cylinder valve (17), drain tap (21), downstream gas pressure meter (33) and downstream inlet valve (22) successively; Triaxial pressure room is by pipeline and is connected on the upstream gas pipeline between downstream inlet valve (22) and upstream inlet valve (28), and with upstream gas pipeline and gas downstream pipeline connection.
2. as claimed in claim 1 can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterized in that: three axle formula pilot systems also comprise axial compression pump (8), axial compression pipeline, confined pressure pump and confined pressure pipeline, triaxial pressure outdoor is enclosed and is comprised axial compression room (9) and confined pressure room (11), axial compression room (9) is connected with axial compression pump (8) by axial compression pipeline, confined pressure room (11) is connected with confined pressure pump (10) by confined pressure pipeline, axial compression pipeline is provided with axial compression meter (38) and axial compression valve (31), confined pressure pipeline is provided with confined pressure meter (39) and confined pressure valve (32).
3. as claimed in claim 1 can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterised in that: the upstream gas pipeline between downstream inlet valve (22) and upstream inlet valve (28) is provided with the first valve (30), pressure warning unit (37) and the 2nd valve (29) successively.
4. as described in claim 1-3 any one can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterised in that: upstream gas pressure meter (36) on upstream gas pipeline and be provided with the upstream gas cylinder (6) with upstream gas pipeline connection between upstream inlet valve (28); Downstream gas pressure meter (33) on gas downstream pipeline and be provided with the downstream gas cylinder (7) with gas downstream pipeline connection between downstream inlet valve (22).
5. as claimed in claim 4 can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterized in that: also comprise liquid seepage system, liquid seepage system comprises liquor pump (3), reservoir (2), upstream liquid pipeline and downstream liquid pipeline, and liquor pump (3) is connected with three axle formula pilot systems by upstream liquid pipeline; Reservoir (2) is connected with three axle formula pilot systems by downstream liquid pipeline; From liquor pump (3), upstream liquid pipeline is provided with liquid control valve door (20), upstream liquid pressure warning unit (35) and upstream liquid flowing valve (27) successively; From reservoir (2), downstream liquid pipeline is provided with draining valve (19), downstream liquid pressure warning unit (34) and downstream fluid valve (24) successively.
6. as claimed in claim 5 can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterised in that: liquid seepage system also comprises liquid storage pipe road, upstream liquid case (5) and downstream liquid case (4); One end, liquid storage pipe road and upstream liquid pipeline connection, connectivity part is positioned between upstream liquid pressure warning unit (35) and upstream liquid flowing valve (27), the liquid storage pipe road the other end and downstream liquid pipeline connection, connectivity part is positioned between downstream liquid pressure warning unit (34) and downstream fluid valve (24);From upstream liquid pipeline, liquid storage pipe road is provided with upstream Cistern valve (26), water tank connection valve (25) and downstream Cistern valve (23) successively; Upstream liquid case (5) is connected with liquid storage pipe road, and connectivity part is positioned at upstream Cistern valve (26) and water tank connects between valve (25); Downstream liquid case (4) is connected with liquid storage pipe road, and connectivity part is positioned at water tank and connects between valve (25) and downstream Cistern valve (23).
7. as claimed in claim 4 can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterised in that: the precision of downstream gas pressure meter (33), upstream gas pressure meter (36) and pressure warning unit (37) reaches 10-4MPa, permeability survey precision reaches 10-24m2��
8. as described in claim 1-3 any one can the heterogeneous percolating medium triaxial stress seepage flow coupling test device of Quick Measurement porosity, it is characterised in that: gases used in bomb (1) is high purity argon.
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| CN104297127B (en) * | 2014-10-21 | 2017-03-01 | 上海交通大学 | The method determining soil body osmotic coefficient and void ratio relation is tested based on triaxial consolidation |
| CN104297128A (en) * | 2014-10-28 | 2015-01-21 | 河南工程学院 | Triaxial stress seepage experiment device under high pressure water and subpressure loading condition |
| CN105628574B (en) * | 2014-10-29 | 2019-04-09 | 中国石油天然气股份有限公司 | Method for measuring porosity of rock sample |
| CN104458527A (en) * | 2014-11-05 | 2015-03-25 | 山东科技大学 | Device for measuring porosity and permeability coefficient of natural gas hydrate |
| CN104964905A (en) * | 2015-07-07 | 2015-10-07 | 中国矿业大学 | Tectonic coal permeability tester |
| CN105158144B (en) * | 2015-09-25 | 2017-12-05 | 山东科技大学 | A kind of matrix of coal deformation mechanics parameter test method |
| CN105527211B (en) * | 2015-12-24 | 2018-03-20 | 河海大学 | The method of testing of the lower tight rock permeability of resultant stress strain |
| CN109470616B (en) * | 2018-10-31 | 2021-11-23 | 重庆大学 | Multifunctional seepage testing system for rock |
| CN110987759A (en) * | 2019-12-11 | 2020-04-10 | 东南大学 | Device and method for testing porosity of porous material by using gas |
| CN115078224B (en) * | 2022-07-14 | 2024-06-25 | 清华大学 | Porous medium permeability measuring method based on pulse attenuation method |
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| JP2011043386A (en) * | 2009-08-20 | 2011-03-03 | Gtr Tec Corp | Transmission quantity measuring instrument having freezing trap |
| CN101915724B (en) * | 2010-08-20 | 2012-06-27 | 河海大学 | Device and method for measuring permeability coefficient of rock material under action of seepage-stress coupling |
| CN102455277B (en) * | 2010-10-22 | 2014-04-02 | 中国石油化工股份有限公司 | Device and method for measuring gasometry permeability of rock under high pressure |
| CN202502089U (en) * | 2011-12-05 | 2012-10-24 | 中国石油大学(华东) | Device for diagenesis simulation experiments |
| CN103163057B (en) * | 2013-03-18 | 2014-06-11 | 河海大学 | Testing device and measuring and calculating method for gas permeability of compact rock material |
| CN103344496B (en) * | 2013-06-09 | 2015-09-02 | 武汉大学 | A kind of rock triaxial compression-water (gas) coupling device and test method |
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