CN109630100A - A kind of automation coal seam permeability test device and method - Google Patents
A kind of automation coal seam permeability test device and method Download PDFInfo
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- CN109630100A CN109630100A CN201811283658.2A CN201811283658A CN109630100A CN 109630100 A CN109630100 A CN 109630100A CN 201811283658 A CN201811283658 A CN 201811283658A CN 109630100 A CN109630100 A CN 109630100A
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- 238000012360 testing method Methods 0.000 title claims abstract description 70
- 239000003245 coal Substances 0.000 title claims abstract description 60
- 230000035699 permeability Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 16
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 238000004880 explosion Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000006870 function Effects 0.000 description 6
- 238000005065 mining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
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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
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- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of automation coal seam permeability test device and method, device includes pressure-measuring pipe and automatic test module, automatic test module includes crust of the device and gas gauge, the gas flow meter with data record and transfer function, control unit, electromagnetic flow valve and the power supply with data record and transfer function that are set in crust of the device, and the shell of crust of the device is equipped with gas access, gas vent, input unit, data output interface and display screen；Gas gauge passes through pressure pipe with gas access and electromagnetic flow valve and connect, gas flow meter passes through pressure pipe with electromagnetic flow valve and gas vent and connect, and control unit and gas gauge, gas flow meter, electromagnetic flow valve, power supply, input unit, data output interface and display screen are all connected by conducting wire；Pressure-measuring pipe is connected to the gas access of crust of the device by pressure pipe I.The present invention realizes the automation of coal seam permeability, precisely test, improves the efficiency of coal seam permeability test.
Description
Technical field
The present invention relates to a kind of automation coal seam permeability test device and methods, belong to field of mine safety.
Background technique
Coal is the main energy sources in China, accounts for about 60% or so of non-renewable energy composition.Gas is in progress of coal mining
Accompaniment, be to seriously threaten one of principal element of Safety of Coal Mine Production.Gas Disaster all causes a large amount of personnel to hurt every year
It dies and huge property loss.The gas drainage in coal seam is come out and is used before exploitation of coal resources, not only may be used
To ensure the safe working of coal resources, promote the utilization of this high effect cleaning energy of coal mine gas, while can also protect big
" safety, the energy, environment " triple benefits are realized in compression ring border.
The key factor of control gas extracting result is coal seam permeability, and that reflects gas under pressure difference effect, is led to
Cross the complexity in coal seam.
Traditional very complicated complexity of coal mine underground coal bed permeability test method, multistep testing process need more set equipment
Complete, correspondingly, it is necessary to multidigit operator is handled, this for mining industry intellectually and automatically trend carry on the back road and
It speeds.In addition, there are also a kind of methods in the small-sized coal sample permeability of ground experiment indoor test, but its test device and method belong to
It is the test operation carried out under non-at-scene environment in analog in nature, and since small-sized coal sample and coal seam scale gap are too big,
There is a certain error with actual conditions always for the authenticity and accuracy that this method obtains permeability.
Summary of the invention
In order to overcome the above-mentioned deficiency of the prior art, the present invention provides a kind of automation coal seam permeability test device and side
Method can not only efficiently, automatically complete the test of coal seam permeability, can more directly apply to underground coal mine actual condition,
Test process is real-time, and test result is accurate.
The technical solution used to solve the technical problems of the present invention is that:
A kind of automation coal seam permeability test device, including pressure-measuring pipe and automatic test module, the automatic test
Module includes crust of the device and the gas gauge with data record and transfer function being set in crust of the device, has
The gas flow meter of data record and transfer function, control unit, electromagnetic flow valve and power supply are also set on the shell of crust of the device
There are gas access, gas vent, input unit, data output interface and display screen；Gas gauge and gas access and electromagnetism
Flow valve is connected by pressure pipe, and gas flow meter is also connect by pressure pipe with electromagnetic flow valve and gas vent, is controlled
Unit and gas gauge processed, gas flow meter, electromagnetic flow valve, power supply, input unit, data output interface and display screen are all
It is connected by conducting wire；The end of pressure-measuring pipe is connected to the gas access of crust of the device by pressure pipe I.
A method of coal seam permeability test, including following step are carried out using automation coal seam permeability test device
Rapid: pressure-measuring pipe is inserted into layer-through drilling perpendicular to the layer-through drilling in test coal seam and seals drilling by step 1) construction；Step 2)
Test coalbed coring parameter is completed by input unit and the default of flow rate test time that drill；Step 3) starts automatic test coal
Layer gas pressure, control unit issue instruction, close electromagnetic flow valve, gas pressure gradually rises in drilling；Judge 24 hours
Whether interior gas pressure reading variation is less than 0.1MPa, electromagnetic flow valve instruction is closed if it is not, then continuing to execute, if so, holding
Row step 4)；Step 4) control unit issues instruction, opens electromagnetic flow valve, testing bore holes gas flow；Judge the testing time
Whether reach preset time, electromagnetic flow valve instruction is opened if it is not, then continuing to execute, if so, thening follow the steps 5)；Step 5) by
Control unit integrates default coalbed coring parameter, gas pressure and gas flow data, calculates and exports using permeability algorithm
Coal seam permeability result.Compared with prior art, of the invention a kind of automation coal seam permeability test device and method, pass through gas
Ingehious design and the cooperation of body pressure gauge, gas flow meter, electromagnetic flow valve and control unit realize coal seam permeability oneself
The meter of the measurement and coal seam permeability of coal-bed gas pressure and drilling gas flow can be completed in dynamicization test, a set of equipment
It calculates, solves the problems such as traditional technology complex steps, labor intensive, improve the efficiency of coal seam permeability test, help to push away
Dynamic mining industry develops to intellectually and automatically direction.The present invention can more directly apply to underground coal mine actual condition, test
Journey is real-time, and test result is accurate.Automation coal seam permeability test device of the invention is also applied widely, adapts to different taxes
Deposit the testing permeability in condition coal seam.In addition, automation coal seam permeability test device structure of the invention is simple, operation side
Just, manufacturing cost is low.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of one embodiment of the invention in the application.
Fig. 2 is the schematic diagram of internal structure of automatic test module in the embodiment of the present invention
Fig. 3 is the flow chart of the test method of the embodiment of the present invention.
In figure: 01, layer-through drilling, 02, test coal seam, 1, pressure-measuring pipe, 2, pressure pipe I 2,3, gas access, 4, gas pressure
Power table, 5, gas vent, 6, gas flow meter, 7, input unit, 8, data output interface, 9, display screen, 10, control unit,
11, electromagnetic flow valve, 12, power supply, 13, pressure pipe II, 14, pressure pipe III, 15, pressure pipe IV, 16, pressure pipe V, 17, conducting wire
I, 18, conducting wire II 18,19, conducting wire III, 20, conducting wire IV, 21, conducting wire V, 22, conducting wire VI, 23, conducting wire VII, 24, crust of the device.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, belongs to protection scope of the present invention.
Fig. 1 to Fig. 3 shows the structural schematic diagram of a preferred embodiment of the invention, and one of Fig. 1 and Fig. 2 are automatic
Change coal seam permeability test device, including pressure-measuring pipe 1 and automatic test module, the automatic test module include crust of the device
24 and be set in crust of the device 24 the gas gauge 4 with data record and transfer function, with data record and
Gas flow meter 6, control unit 10, electromagnetic flow valve 11 and the power supply 12 of transfer function, wherein having data record and transmission
The gas gauge 4 of function and the gas flow meter 6 for having data record and transfer function, are in common digital gas pressure
Data memory module and data transmission module, the number of data memory module and table itself are additionally arranged in table and digital gas flow meter
It is connected according to read module, then control unit 10 is sent to by data transmission module, is additionally provided with gas on the shell of crust of the device 24
Body entrance 3, gas vent 5, input unit 7, data output interface 8 and display screen 9；Gas gauge 4 and gas access 3 and electricity
Magnetic flow valve 11 is connected by pressure pipe II 13 and pressure pipe III 14 respectively, gas flow meter 6 and electromagnetic flow valve 11 and gas
Outlet 5 is also connected by pressure pipe IV 15 and pressure pipe V 16 respectively, control unit 10 and gas gauge 4, gas flow meter
6, electromagnetic flow valve 11, power supply 12, input unit 7, data output interface 8 and display screen 9 pass through conducting wire I 17, conducting wire III respectively
19, conducting wire II 18, conducting wire IV 20, conducting wire VI 23, conducting wire VII 22 and conducting wire V 21 connect；The end of pressure-measuring pipe 1 by patching fastly
Head is connect with pressure pipe I 2, and pressure pipe I 2 is connected to gas access 3 by fast plug again.
The method for testing coal seam permeability referring to Fig. 3, the present invention, comprising the following steps:
Pressure-measuring pipe 1 is inserted into layer-through drilling 01 and close by step 1) construction perpendicular to the layer-through drilling 01 in test coal seam 02
Envelope drilling；
Step 2) completes test coalbed coring parameter and the default of flow rate test time that drill by input unit 7；
Step 3) starts automatic test coal-bed gas pressure, and control unit 10 issues instruction, closes electromagnetic flow valve 11, wear
Gas pressure gradually rises in layer drilling 01；Judge whether the variation of gas pressure reading is less than 0.1MPa in 24 hours, if it is not, then
It continues to execute and closes the instruction of electromagnetic flow valve 11, if so, thening follow the steps 4)；
Step 4) control unit 10 issues instruction, opens electromagnetic flow valve 11, testing bore holes gas flow；When judgement test
Between whether reach preset time, if it is not, then continue to execute open electromagnetic flow valve 11 instruct, if so, thening follow the steps 5)；
Step 5) integrates default coalbed coring parameter, gas pressure and gas flow data by control unit 10, utilizes infiltration
Permeability algorithm calculates and exports coal seam permeability result.
Well known, permeability algorithm is as follows: calculating watt on default drain time t moment drilling unit area coal wall first
This outburst amountWherein Q is the drilling gas flow that default drain time t moment test obtains, and π is pi, and r is
Preset coalbed coring parameter, i.e. boring radius, L are preset coalbed coring parameter, i.e. coal seam thickness.And then calculating parameterWithWherein p is the coal-bed gas pressure that test obtains, pairFor preset coalbed coring parameter,
That is the air pressure of testing location, α are preset coalbed coring parameter, i.e. seam gas content coefficient.
6 judgment formulas:
(1)F0=10-2~1
(2)F0=1~10
(3)F0=10~102
(4)F0=102~103
(5)F0=103~105
(6)F0=105~107
Check formula: F0=ξ λ
Permeability k calculation formula: λ/40 k=
An optional judgment formula brings parameter ω and ξ into and calculates λ；And then it brings λ and ξ into check formula and calculates F0If meter
Calculate the F obtained0Judgment formula requirement used in meeting then can be calculated coal seam using computing permeability formula and permeate
Rate；If calculating the F obtained0Judgment formula requirement used in not meeting repeats then optional one in remaining judgment formula
Above-mentioned steps, until calculating the F obtained0Judgment formula requirement used in meeting, then can be counted using computing permeability formula
Calculation obtains coal seam permeability.
Beneficial effects of the present invention:
(1) present invention is set by gas gauge 4, gas flow meter 6, electromagnetic flow valve 11 and the ingenious of control unit 10
Meter and cooperation, realize the automatic test of coal seam permeability, coal-bed gas pressure and drilling gas can be completed in a set of equipment
The measurement of flow and the calculating of coal seam permeability, solve the problems such as traditional technology complex steps, labor intensive, improve coal
The efficiency of layer testing permeability helps that mining industry is pushed to develop to intellectually and automatically direction.
(2) automation coal seam permeability test device of the invention is applied widely, adapts to different occurrence condition coal seams
Testing permeability.
(3) automation coal seam permeability test device structure of the invention be simple and convenient to operate, manufacturing cost it is low.
(4) present invention directly applies to underground coal mine actual condition, and test process is real-time, and test result is accurate.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is all according to
According to technical spirit of the invention, any simple modification and same variation are made to above embodiments, each fall within guarantor of the invention
Within the scope of shield.
Claims (4)
1. a kind of automation coal seam permeability test device, it is characterized in that: including pressure-measuring pipe (1) and automatic test module, it is described
Automatic test module include crust of the device (24) and be set in crust of the device (24) with data record and transmission function
Gas gauge (4), the gas flow meter (6) with data record and transfer function, control unit (10), Electromagnetic Flow of energy
Valve (11) and power supply (12) are additionally provided with gas access (3), gas vent (5), input unit on the shell of crust of the device (24)
(7), data output interface (8) and display screen (9)；Gas gauge (4) and gas access (3) and electromagnetic flow valve (11) are logical
Pressure pipe connection is crossed, gas flow meter (6) is also connect by pressure pipe with electromagnetic flow valve (11) and gas vent (5), is controlled
Unit (10) processed and gas gauge (4), gas flow meter (6), electromagnetic flow valve (11), power supply (12), input unit (7),
Data output interface (8) is all connected by conducting wire with display screen (9)；The end of pressure-measuring pipe (1) is connected to by pressure pipe I (2)
The gas access (3) of crust of the device (24).
2. a kind of automation coal seam permeability test device according to claim 1, it is characterised in that: the pressure-measuring pipe
It (1) between pressure pipe I (2) and between pressure pipe I (2) and gas access (3) is connect by fast plug.
3. a kind of automation coal seam permeability test device according to claim 1 or 2, it is characterised in that: described automatic
The crust of the device (24) of test module is explosion-resistant enclosure.
4. a kind of carry out coal seam permeability survey using any one of the claims 1 to 33 automation coal seam permeability test device
The method of examination, which comprises the following steps:
Step 1) construction, will be in pressure-measuring pipe (1) insertion layer-through drilling (01) perpendicular to the layer-through drilling (01) of test coal seam (02)
And seal drilling；
Step 2) completes test coalbed coring parameter and the default of flow rate test time that drill by input unit (7)；
Step 3) starts automatic test coal-bed gas pressure, and control unit (10) issues instruction, closes electromagnetic flow valve (11), bores
Gas pressure gradually rises in hole；Judge whether the variation of gas pressure reading is less than 0.1MPa in 24 hours, if it is not, then continuing to hold
Row closes electromagnetic flow valve (11) instruction, if so, thening follow the steps 4)；
Step 4) control unit (10) issues instruction, opens electromagnetic flow valve (11), testing bore holes gas flow；When judgement test
Between whether reach preset time, if it is not, then continue to execute open electromagnetic flow valve (11) instruction, if so, thening follow the steps 5)；
Step 5) integrates default coalbed coring parameter, gas pressure and gas flow data by control unit (10), utilizes infiltration
Property algorithm calculates and exports coal seam permeability result.
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| CN201811283658.2A CN109630100B (en) | 2018-10-31 | 2018-10-31 | Automatic coal seam permeability testing device and method |
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| CN201811283658.2A CN109630100B (en) | 2018-10-31 | 2018-10-31 | Automatic coal seam permeability testing device and method |
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| CN109630100B CN109630100B (en) | 2021-09-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185497A (en) * | 2019-06-29 | 2019-08-30 | 贵州大学 | A kind of seam mining gas flow test warning device |
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| CN109630100B (en) | 2021-09-24 |
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