CN102147348A - Device and method for measuring gas permeation in coal - Google Patents

Device and method for measuring gas permeation in coal Download PDF

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Publication number
CN102147348A
CN102147348A CN 201110032005 CN201110032005A CN102147348A CN 102147348 A CN102147348 A CN 102147348A CN 201110032005 CN201110032005 CN 201110032005 CN 201110032005 A CN201110032005 A CN 201110032005A CN 102147348 A CN102147348 A CN 102147348A
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gas
container
coal
measurement
valve
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CN102147348B (en
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杨建丽
刘振宇
韩风双
汤放新
李允梅
牛宏贤
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Shanxi Institute of Coal Chemistry of CAS
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Shanxi Institute of Coal Chemistry of CAS
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Abstract

The invention discloses a device for measuring gas permeation in coal. The device comprises a sample container body (1), a front container cover (2) and a rear container cover (3); one end of the sample container body (1) is a sample placing hole (26), the other end of the sample container body (1) is a gas channel (27), the diameter of the sample placing hole (26) is larger than that of the gas channel (27), the sample placing hole (26) is communicated with the gas channel (27) and is internally provided with inner threads, the front container cover (2) comprises a front container cover body (28), a sample end (29) and a connection end (30), a channel is arranged among the front container cover body (28), the sample end (29) and the connection end (30), the sample end (29) is provided with outer threads and being used for connection with the inner threads of the sample placing hole (26), a channel is arranged in the middle of the rear container cover (3), and the sample container body (1) is respectively connected with the front container cover (2) and the rear container cover (3) in a sealing way. The device disclosed by the invention has the advantages of simple structure, easiness for operation, reliability and safety in sealing, high measuring precision and automation in measurement.

Description

Measurement mechanism that a kind of measurement gas is permeated in coal and measuring method
Technical field
The present invention relates to a kind of measurement gas device for measuring permeability and measuring method in coal, specifically a kind of measurement mechanism and measuring method of estimating the penetration property of certain gas in the coal sample of having adsorbed another kind of gas.
Background technology
CO2 is injected can not working seam, strengthens coal bed methane (CH4) exploitation (CO2-ECBM) scheme simultaneously, obtains cleaning low-carbon (LC) fuel C H4 when being intended to control greenhouse gas emission, is to be expected to one of important channel of realizing the industrialization GHG emissions mitigation.The coal seam has crack and matrix of coal structure usually, and the crack is the main thoroughfare of fluid migration, and the matrix of coal of porous is the main place of CH4 with the ADSORPTION STATE storage.After CO2 injected the coal seam, infiltration and the adsorption property of CO2 in the matrix of coal that has adsorbed CH4 determined the effect of CO2 displacement CH4, and then influenced the effect of increasing production with CH4 of sealing up for safekeeping of CO2.The temperature and pressure condition in simulation coal seam in the laboratory, the research Penetration Signature of CO2 in having adsorbed the matrix of coal sample of CH4 can provide important evidence for the effect of prediction CO2 displacement CH4, and provides basic data for CO2-ECBM technology and theoretical developments.
The common equipment of investigating the coal sample penetration property at present is the three-axis penetration instrument, and this equipment must radially apply certain confined pressure to coal sample, to guarantee the sealing of coal sample and equipment room.Confined pressure in radial compression coal sample, may destroy the pore texture of coal sample, so this equipment can not be measured the permeability of coal sample in the raw.In addition, the size of the available coal sample of present three-axis penetration device regulation is big (the coal sample diameter is greater than 2cm), so can not measure the Penetration Signature of undersized matrix of coal sample.And present three-axis penetration equipment mainly concentrates on measures the permeability of single kind gas in coal sample, and seldom has equipment can measure the penetration property of certain gas in the coal sample of having adsorbed another gas.The present invention does not find report by retrieval.
Summary of the invention
The purpose of this invention is to provide measurement mechanism and measuring method that a kind of measurement gas is permeated in coal.This measurement mechanism and method both can have been measured dynamically the penetrate process (unstable state) of certain gas (A) in the coal sample of having adsorbed another gas (B), again can the steady-state permeation rate of measurement gas A in the coal sample of having adsorbed gas B.
The invention provides a kind of sampling receptacle of measuring the coal sample penetration property, it is by the sampling receptacle body, container protecgulum and container bonnet are formed, sampling receptacle body one end is for putting sample port, the other end is a gas passage, put the sample port diameter greater than gas passage, put sample port and communicate with gas passage, putting sample port has internal thread, the container protecgulum is by the container front cover body, sample end and link are formed, the container front cover body, in the middle of link and the sample end is passage, and the sample end has external thread, be used for and put the sample port internal thread and be connected, in the middle of the container bonnet passage is arranged, the sampling receptacle body, container protecgulum and container bonnet are tightly connected.
Aforesaid sampling receptacle is a column type.
With the sealing of O type circle, seal by the teflon pad between sampling receptacle body and the container bonnet between sampling receptacle body and container protecgulum.
The measuring method step of gas-dynamic breakthrough curve of the present invention and steady-state permeation rate is as follows:
(1) the cylindric coal sample that will prepare is sealed in the sampling receptacle with the sample port of putting of cementing agent from the sampling receptacle body;
(2) sampling receptacle, container protecgulum and container bonnet are connected by screw thread and seal;
(3) container protecgulum and two-way pipeline are connected, the one tunnel connects needle valve and pressure transducer; Another road is divided into three branches again, branch one links to each other with vacuum pump with needle valve, branch two connects retaining valve, decompression pressure regulator valve and A gas gas cylinder, branch three is through needle valve, the decompression pressure regulator valve links to each other with B gas gas cylinder, container bonnet and two-way pipeline connect, lead up to retaining valve, needle valve links to each other with branch three circuits, between the retaining valve and needle valve of link position in branch's three circuits, another road connects T-valve through behind the needle valve, T-valve one branch links to each other with soap bubble flowmeter, another branch and mass flowmeter, T-valve links to each other with detecting device, and T-valve links to each other with soap bubble flowmeter in another branch;
(3) sampling receptacle is put into calibration cell, add heating medium, and configure probe temperature, heating medium is heated to probe temperature by thermal resistance;
(4) sampling receptacle and connecting line system thereof are vacuumized;
(5) be adjusted to setting pressure from gas gas cylinder effluent air B through the decompression pressure regulator valve, lead to sampling receptacle through needle valve then, measure the flow of the B gas that penetrates coal sample with soap bubble flowmeter;
(6) treat stability of flow through sampling receptacle gas B after, stop to feed gas B, continue to feed the B gas of constant pressure to the container bonnet by B gas gas cylinder, decompression pressure regulator valve, needle valve, retaining valve, and make the B gas that feeds through needle valve, T-valve and mass flowmeter flow out, the flow of B gas is controlled to be definite value by mass flowmeter, and this definite value is demarcated with soap bubble flowmeter;
(7) open the detecting device power supply;
(8) the A gas that flows out from A gas gas cylinder is adjusted to setting pressure through the decompression pressure regulator valve, lead to sampling receptacle through retaining valve then, the A gas that penetrates coal sample is continued the B gas purging that flows and is brought into detecting device, continue detected signal in the record detecting device, then obtained the dynamic breakthrough curve of A gas in the coal column that has adsorbed B gas;
(9) after signal to be recorded tended towards stability, the infiltration of A gas in coal column reached stable state substantially;
The steady-state permeation rate of A gas in coal column calculated with Darcy's law, and formula is as follows:
k = 2 η P 2 LQx A ( P 1 2 - P 2 2 ) - - - ( 1 )
In the formula:
The permeability of k---gas, m2,1mDarcy=9.87 * 10-10m2;
η---gas viscosity, Pas;
Q---the total volume flow rate of container bonnet gas, m 3/ s;
P1---container protecgulum gaseous tension, Pa;
P2---container bonnet gaseous tension, Pa;
The thickness of L---coal column, m;
The cross-sectional area of A---coal column, m 2
X---the concentration of container bonnet A gas;
(10) pressure of change A gas, repetitive operation 5-11 time can obtain the Changing Pattern of permeability along with pressure.
Described calibration cell is made up of thermostatic box, thermostatic box loam cake and thermal resistance, and thermostatic box and thermostatic box loam cake are to flexibly connect, and thermal resistance is positioned at thermostatic box.
Described thermal resistance is a type commonly used in this area, as the Pt100 platinum resistance.
Described detecting device is connected with computing machine by lead.
Cementing agent described in the present invention is the cementing agent of can bond simultaneously coal sample and stainless steel sampling receptacle, for example polyurethanes, esters of acrylic acid or epoxy resin cementing agent.
Any range that the top hole pressure of the decompression pressure regulator valve described in the present invention can bear pressure for fixing cementing agent.
The flow range of the mass flowmeter described in the present invention depends on size, permeability and the gas property of coal sample.
The maximal value that pressure transducer range described in the present invention can bear pressure for fixing cementing agent, measuring accuracy is 0.05%FS.
Vacuum pump described in the present invention can make the absolute pressure of reactive system reduce to 0-0.02MPa.
The heating medium of calibration cell described in the present invention is this area various heating mediums commonly used, and as water or various suitable heat-conducting liquid, the operating temperature range of this calibration cell is shown selected heating medium and decide that temperature-controlled precision is ± 0.1 ℃.
Detecting device described in the present invention is can the detected gas variable signal or any detecting device of concentration, for example thermal conductivity detector (TCD) and mass spectrum etc.
The advantage of the device for measuring permeability of a kind of coal provided by the invention and measuring method apparatus of the present invention and method is as follows:
1, this device can be measured coal sample and be in the permeability that is close under the state of nature by cementing agent sealing coal sample.
2, this equipment can adopt the small scale coal sample, to guarantee that the coal sample of being surveyed is the matrix of coal part.
3, this device adopts on-line measuring device, both can measure dynamically the penetrate process of certain gas in the coal sample of having adsorbed another kind of gas, can measure the steady-state permeation rate of certain gas in the coal sample of having adsorbed another gas again; And utilize computer-automatic collection to come the signal data of self-detector, and the data that collect to be handled calculating and preservation, and on computer screen, show time dependent detection signal in the experimentation in real time, the realization intellectuality is controlled and measurement automatically.
4, have simple in structure, easy operating, advantages such as sealing is reliable and secure, measuring accuracy is high, automatic measurement.
Description of drawings
Accompanying drawing 1 is the schematic flow sheet of infiltration measurement mechanism.
Accompanying drawing 2 is the structural representation of the sampling receptacle of permeability apparatus
The dynamic breakthrough curve of gas A when accompanying drawing 3 is 1.5MPa for pressure in the coal column that has adsorbed gas B.
Accompanying drawing 4 is the change curve of the steady-state permeation rate of gas A in the coal sample of having adsorbed gas B along with pressure.
As shown in the figure: 1-sampling receptacle body; 2-container protecgulum; 3-container bonnet; The 4-cementing agent; The 5-coal sample; 6-CH4 gas gas cylinder; The 7-pressure regulator valve that reduces pressure; The 8-needle valve; 9-CO2 gas gas cylinder; The 10-pressure regulator valve that reduces pressure; The 11-retaining valve; The 12-needle valve; The 13-vacuum pump; The 14-needle valve; The 15-pressure transducer; The 16-needle valve; The 17-retaining valve; The 18-needle valve; The 19-T-valve; The 20-soap bubble flowmeter; The 21-mass flowmeter; The 22-T-valve; The 23-detecting device; The 24-thermostatic box; 25-thermostatic box loam cake; 26-is put sample port; The 27-gas passage; 28-container front cover body; 29-sample end; The 30-link; 31-O type circle; 32-teflon pad; The 33-thermal resistance; The 34-pressure transducer.
Embodiment
Below in conjunction with embodiment the specific embodiment of the present invention is done further and to be described in detail.
Embodiment 1
Sampling receptacle body 1 one ends are for putting sample port 26, the other end is a gas passage 27, put sample port 26 diameters greater than gas passage 27, putting sample port 26 communicates with gas passage 27, put sample port 26 internal thread is arranged, container protecgulum 2 is by container front cover body 28, sample end 29 and link 30 are formed, in the middle of container front cover body 28, sample end 29 and the link 30 is passage, sample end 29 has external thread, is used for and puts sample port 26 internal threads and be connected, and passage is arranged in the middle of the container bonnet 3, sampling receptacle body 1, container protecgulum 2 and container bonnet 3 are tightly connected.Sampling receptacle body 1, container protecgulum 2 and container bonnet 3 are column type.
Calibration cell is made up of thermostatic box 24, thermostatic box loam cake 25 and thermal resistance 33, and thermostatic box 24 is to flexibly connect with thermostatic box loam cake 25, and thermal resistance 33 is positioned at thermostatic box 24.
Coal sample is made into diameter 6mm, and the cylindrical shape about high 13mm is sealed in the coal column sample 5 for preparing in the sampling receptacle body 1 with cementing agent 4.2 of sampling receptacle body 1 and container protecgulums be with O type circle sealing 31, between sampling receptacle body 1 and the container bonnet 2 by the sealing 32 of teflon pad by being threaded.Container protecgulum 1 is connected with the two-way pipeline, and one the tunnel is connected with needle valve 14 and pressure transducer 15; Another road is divided into three branches again, and branch one links to each other with vacuum pump 13 with needle valve 12, and branch two is connected with retaining valve 11, decompression pressure regulator valve 10 and CO2 gas cylinder 9, and branch three links to each other with CH4 gas cylinder 6 behind the needle valve 8 and the pressure regulator valve 7 that reduces pressure.CH4 gas cylinder 6, decompression pressure regulator valve 7, needle valve 16, retaining valve 17 connect to form the admission line of sample container bonnet 3 through pipeline, container bonnet 3 give vent to anger pipeline behind needle valve 18, be divided into two-way by T-valve 19, one the tunnel links to each other with soap bubble flowmeter 20, and another road links to each other with mass flowmeter 21, T-valve 22 and thermal conductance (TCD) detecting device 23.The whole sample container is placed in the thermostatic box 24, and thermostatic box 24 adds heating medium water.
(1) open the power supply of calibration cell, the temperature of setting calibration cell is heated to 45 ℃ of probe temperatures to the temperature (45 ℃) that needs by 33 pairs of heating medium water of thermal resistance.
(2) close needle valve 8,14 and 18, open needle valve 12,13 pairs of systems vacuumize 20min with vacuum pump.
(3) close needle valve 12 and 16, open needle valve 8,14 and 18, and connect needle valve 18 and soap bubble flowmeter 20, by T-valve 22 quality of connection flowmeters 21 and thermal conductance (TCD) detecting device 23 by T-valve 19.The setting pressure of setting decompression pressure regulator valve 7 is 1.0MPa, continuing to feed pressure to sampling receptacle is the CH4 gas of 1.0MPa, and measure the CH4 gas flow that penetrates sample cell with soap bubble flowmeter 20, till the CH4 of sample soap bubble flowmeter 20 gas flow is stable.
(4) valve-off 8, open valve 16, connect needle valve 18 and mass flowmeter 21 by T-valve 19, by T-valve 22 quality of connection flowmeters 21 and soap bubble flowmeter 20.Continuing to feed pressure P 2 to container bonnet 3 places of sample cell through decompression pressure regulator valve 7, needle valve 16 and retaining valve 17 by CH4 gas cylinder 6 is the CH4 gas of 1MPa, the flow of CH4 gas is controlled to be definite value by mass flowmeter 21, this definite value can be demarcated with soap bubble flowmeter 20, and flow velocity is 30ml/min.
(5) open the power supply of thermal conductance (TCD) detecting device 23, start computing machine and also move testing software;
(6) by T-valve 22 quality of connection flowmeters 21 and detecting device 23, the pressure of setting decompression pressure regulator valve 10 adjusting container protecgulum gaseous tension P1 is 1.5MPa, CO2 gas leads to container protecgulum 2 by CO2 gas cylinder 9 through decompression pressure regulator valve 10, retaining valve 11, after CO2 penetrates coal column, continued the CH4 gas purging that flows and brought into thermal conductance (TCD) detecting device 23, detecting device 23 continue record signal indications the process that dynamically penetrates of CO2, the result is as shown in Figure 3.
(7) after the signal of device 23 records to be detected tends towards stability (Fig. 3), the concentration of CO2 gas is 0.03, and the infiltration of CO2 in coal column reaches stable state substantially.Calculate the steady-state permeation rate of CO2 gas in the coal column that has adsorbed CH4 according to formula 1.CO2 is 0.0000161Pas 45 ℃ viscosities il value, the cross-sectional area A of coal column is 0.00002826m2, the thickness L of coal column is 0.013m, container protecgulum gaseous tension P1 value is 1500000Pa, container bonnet gaseous tension P2 value is 1000000Pa, and the total volume flow rate of container bonnet gas is 0.0000005m 3/ s, the concentration value of CO2 gas are 0.03, and the infiltration of CO2 in coal column can calculate and be 1.78mDarcy.
(8) change CO2 pressure, repetitive operation 2-7 can obtain the Changing Pattern of steady-state permeation rate along with pressure, as shown in Figure 4.

Claims (12)

1. measurement mechanism that measurement gas is permeated in coal, it is by sampling receptacle body (1), container protecgulum (2) and container bonnet (3) are formed, it is characterized in that sampling receptacle body (1) one end is for putting sample port (26), the other end is gas passage (27), put sample port (26) diameter greater than gas passage (27), putting sample port (26) communicates with gas passage (27), put sample port (26) internal thread is arranged, container protecgulum (2) is by container front cover body (28), sample end (29) and link (30) are formed, container front cover body (28), in the middle of sample end (29) and the link (30) is passage, and sample end (29) has external thread, is used for and puts sample port (26) internal thread and be connected, passage is arranged in the middle of the container bonnet (3), and sampling receptacle body (1) is tightly connected respectively with container protecgulum (2) and container bonnet (3).
2. the measurement mechanism that a kind of measurement gas as claimed in claim 1 is permeated in coal is characterized in that described sampling receptacle body (1), and container protecgulum (2) and container bonnet (3) are column type.
3. the measurement mechanism that a kind of measurement gas as claimed in claim 1 is permeated in coal, it is characterized in that sealing with O type circle between described sampling receptacle body (1) and container protecgulum (2), seal by the teflon pad between sampling receptacle body (1) and the container bonnet (3).
4. the measuring method of the measurement mechanism that permeates in coal as each described a kind of measurement gas of claim 1-3 is characterized in that comprising the steps:
(1) the cylindric coal sample that will prepare is sealed in the sampling receptacle with the sample port of putting of cementing agent from the sampling receptacle body;
(2) sampling receptacle, container protecgulum and container bonnet are connected by screw thread and seal;
(3) container protecgulum and two-way pipeline are connected, the one tunnel connects needle valve and pressure transducer; Another road is divided into three branches again, branch one links to each other with vacuum pump with needle valve, branch two connects retaining valve, decompression pressure regulator valve and A gas gas cylinder, branch three is through needle valve, the decompression pressure regulator valve links to each other with B gas gas cylinder, container bonnet and two-way pipeline connect, lead up to retaining valve, needle valve links to each other with branch three circuits, between the retaining valve and needle valve of link position in branch's three circuits, another road connects T-valve through behind the needle valve, T-valve one branch links to each other with soap bubble flowmeter, another branch and mass flowmeter, T-valve links to each other with detecting device, and T-valve links to each other with soap bubble flowmeter in another branch;
(3) sampling receptacle is put into calibration cell, add heating medium, and configure probe temperature, heating medium is heated to probe temperature by thermal resistance;
(4) sampling receptacle and connecting line system thereof are vacuumized;
(5) be adjusted to setting pressure from gas gas cylinder effluent air B through the decompression pressure regulator valve, lead to sampling receptacle through needle valve then, measure the flow of the B gas that penetrates coal sample with soap bubble flowmeter;
(6) treat stability of flow through sampling receptacle gas B after, stop to feed gas B, continue to feed the B gas of constant pressure to the container bonnet by B gas gas cylinder, decompression pressure regulator valve, needle valve, retaining valve, and make the B gas that feeds through needle valve, T-valve and mass flowmeter flow out, the flow of B gas is controlled to be definite value by mass flowmeter, and this definite value is demarcated with soap bubble flowmeter;
(7) open the detecting device power supply;
(8) the A gas that flows out from A gas gas cylinder is adjusted to setting pressure through the decompression pressure regulator valve, lead to sampling receptacle through retaining valve then, the A gas that penetrates coal sample is continued the B gas purging that flows and is brought into detecting device, continue detected signal in the record detecting device, then obtained the dynamic breakthrough curve of A gas in the coal column that has adsorbed B gas;
(9) after signal to be recorded tended towards stability, the infiltration of A gas in coal column reached stable state substantially;
The steady-state permeation rate of A gas in coal column calculated with Darcy's law, and formula is as follows:
In the formula:
The permeability of k---gas, m2,1mDarcy=9.87 * 10-10m2;
η---gas viscosity, Pas;
Q---the total volume flow rate of container bonnet gas, m 3/ s;
P1---container protecgulum gaseous tension, Pa;
P2---container bonnet gaseous tension, Pa;
The thickness of L---coal column, m;
The cross-sectional area of A---coal column, m2;
X---the concentration of container bonnet A gas;
(10) pressure of change A gas, repetitive operation 5-11 time can obtain the Changing Pattern of permeability along with pressure.
5. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal, it is characterized in that described calibration cell is made up of thermostatic box (24), thermostatic box loam cake (25) and thermal resistance (33), thermostatic box (24) is to flexibly connect with thermostatic box loam cake (25), and thermal resistance (33) is positioned at thermostatic box.
6. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 5 is permeated in coal is characterized in that described thermal resistance is the Pt100 platinum resistance.
7. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal is characterized in that described cementing agent is polyurethanes, esters of acrylic acid or epoxy resin cementing agent.
8. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal, the measuring accuracy that it is characterized in that described pressure transducer is 0.05%FS.
9. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal is characterized in that described vacuum pump makes the absolute pressure of reactive system reduce to 0-0.02MPa.
10. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal, the heating medium that it is characterized in that described calibration cell is water or heat-conducting liquid.
11. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal is characterized in that the temperature temperature-controlled precision of described calibration cell is ± 0.1 ℃.
12. the measuring method of the measurement mechanism that a kind of measurement gas as claimed in claim 4 is permeated in coal is characterized in that described detecting device is thermal conductivity detector (TCD) or mass spectrum.
CN2011100320059A 2011-01-25 2011-01-25 Device and method for measuring gas permeation in coal Expired - Fee Related CN102147348B (en)

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN103245588A (en) * 2013-05-17 2013-08-14 国家地质实验测试中心 Gas content measurement and gas collection device
CN103257101A (en) * 2013-05-24 2013-08-21 中国石油大学(北京) Coating-containing core as well as core holder anti-corrosion method and core displacement experiment method
CN103616317A (en) * 2013-12-16 2014-03-05 南京工业大学 Full-automatic equipment and method for testing helium diffusion coefficient of reactor material
CN104964905A (en) * 2015-07-07 2015-10-07 中国矿业大学 Tectonic coal permeability tester
CN105527209A (en) * 2015-12-07 2016-04-27 河海大学 Constant-pressure field soil gas-transmission rate tester
CN106124380A (en) * 2016-06-22 2016-11-16 太原理工大学 A kind of similarity simulation experiment is measured the device and method of coal column breathability
CN109630100A (en) * 2018-10-31 2019-04-16 中国矿业大学 A kind of automation coal seam permeability test device and method
CN109655391A (en) * 2018-11-19 2019-04-19 中国矿业大学 A kind of material of rock and soil breakthrough of gas/Penetration Signature double Mode Control test macro
CN109991144A (en) * 2017-12-31 2019-07-09 中国人民解放军63653部队 Epoxy sealing type measuring device for gas permeability

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CN2788175Y (en) * 2005-04-22 2006-06-14 辽宁工程技术大学 Auto pressure type tri-axial permeameter
CN1815175A (en) * 2006-02-07 2006-08-09 同济大学 Detecting instrument for concrete gas seepage coefficient under single-shaft-pressure stress and detecting method
CN202075200U (en) * 2011-01-25 2011-12-14 中国科学院山西煤炭化学研究所 Device for testing permeation of gas in coal

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Publication number Priority date Publication date Assignee Title
CN2788175Y (en) * 2005-04-22 2006-06-14 辽宁工程技术大学 Auto pressure type tri-axial permeameter
CN1815175A (en) * 2006-02-07 2006-08-09 同济大学 Detecting instrument for concrete gas seepage coefficient under single-shaft-pressure stress and detecting method
CN202075200U (en) * 2011-01-25 2011-12-14 中国科学院山西煤炭化学研究所 Device for testing permeation of gas in coal

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103245588A (en) * 2013-05-17 2013-08-14 国家地质实验测试中心 Gas content measurement and gas collection device
CN103257101A (en) * 2013-05-24 2013-08-21 中国石油大学(北京) Coating-containing core as well as core holder anti-corrosion method and core displacement experiment method
CN103616317A (en) * 2013-12-16 2014-03-05 南京工业大学 Full-automatic equipment and method for testing helium diffusion coefficient of reactor material
CN103616317B (en) * 2013-12-16 2016-03-30 南京工业大学 A kind of fully-automatic equipment of assaying reaction heap material helium diffuse coefficient and method
CN104964905A (en) * 2015-07-07 2015-10-07 中国矿业大学 Tectonic coal permeability tester
CN105527209A (en) * 2015-12-07 2016-04-27 河海大学 Constant-pressure field soil gas-transmission rate tester
CN105527209B (en) * 2015-12-07 2018-04-20 河海大学 A kind of constant pressure type field soil ventilative speed analyzer
CN106124380A (en) * 2016-06-22 2016-11-16 太原理工大学 A kind of similarity simulation experiment is measured the device and method of coal column breathability
CN109991144A (en) * 2017-12-31 2019-07-09 中国人民解放军63653部队 Epoxy sealing type measuring device for gas permeability
CN109630100A (en) * 2018-10-31 2019-04-16 中国矿业大学 A kind of automation coal seam permeability test device and method
CN109655391A (en) * 2018-11-19 2019-04-19 中国矿业大学 A kind of material of rock and soil breakthrough of gas/Penetration Signature double Mode Control test macro

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