CN206891896U - A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus - Google Patents

A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus Download PDF

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CN206891896U
CN206891896U CN201720722014.3U CN201720722014U CN206891896U CN 206891896 U CN206891896 U CN 206891896U CN 201720722014 U CN201720722014 U CN 201720722014U CN 206891896 U CN206891896 U CN 206891896U
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electromagnetic wave
pressure
gas
excitation
hole
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王巧
王一巧
程瑶
马玉林
张永利
尚文龙
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Liaoning Technical University
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Liaoning Technical University
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Abstract

A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus, belong to Unconventional gas (coal bed gas and shale gas etc.) Seepage Experiment technical field.The utility model includes three axle pressue devices, excitation of electromagnetic wave device and integrated control system;Three axle pressue devices are made up of forcing press and triaxial apparatus, in push-down head and internal piston, desorption gas venthole is set, confined pressure air admission hole and data output channel are set inside upper pressure seat, set hole to be pressed into stomata and electromagnetic wave receiver hole inside upper pressure seat and seaming chuck;Excitation of electromagnetic wave device includes electromagnetic wave generator, and electromagnetic wave generator output is connected with electromagnetic wave receiver hole;Integrated control system includes main frame, temperature sensor, temperature recipient, foil gauge, strain receiver, control gas switch, voltage-stablizer controlling switch, pressure gauge and pressure regulator valve;Temperature sensor and foil gauge are arranged on specimen surface, and foil gauge is connected by straining receiver with main frame, and temperature sensor is connected by temperature receptacle with main frame.

Description

A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus
Technical field
The utility model belongs to Unconventional gas (coal bed gas and shale gas etc.) Seepage Experiment technical field, particularly relates to A kind of and excitation of electromagnetic wave Unconventional gas seepage experimental apparatus.
Background technology
Unconventional gas mainly includes coal bed gas and shale gas, and main component is methane, is important emerging cleaning energy Source.The coal bed gas and shale gas reserves in China are very abundant, and shale gas can visit reserves and rank the first in the world.To unconventional natural Gas, which develops and utilizes, to be not only able to greatly alleviate China's energy shortage situation, and can reduce the conventional energy such as coal, oil Pollution of the source to atmospheric environment, the exploitation of coal bed gas additionally aid increase coal mine production safety coefficient, increased economic efficiency.But I The unconventional gas reservoir of state's most area belongs to low permeability reservoir, and extraction rate is extremely low, can not carry out conventional commercial Exploitation.
At present, conventional recovery method is that hydraulic fracturing and horizontal drilling are combined, it is necessary to expend substantial amounts of water resource, and can Some accessory problems can be brought.Electromagnetic wave is the new method that Unconventional gas exploitation is carried out for low permeability reservoir, is earliest Based on fuel factor caused by electromagnetic wave, Unconventional gas Desorption And Seepage speed is improved using heat energy, is significantly carried so as to reach The purpose of high yield.Research is found:Electromagnetic Field can realize thermal expansion, thermal fracture simultaneously in coal and rock using dielectric conduction With radiation fracturing, while endogenous pyrogen can be internally formed in coal and rock by heat radiation, further utilize temperature difference excitation coal bed gas With shale gas from reservoir output.Therefore, excitation of electromagnetic wave exploitation hyposmosis Unconventional gas relative to existing hydraulic fracturing, The mode such as gas injection displacement and conventional heat injection or heating exploitation compares, and extraction is more efficient, and fracturing seepage flow effect is more preferable;Therefore, it is sharp It is a kind of very potential new recovery method to enter row energization exploitation to hyposmosis Unconventional gas with electromagnetic wave.
At present, there is no excitation of electromagnetic wave Unconventional gas seepage experimental apparatus still in the prior art, electromagnetism can not be obtained The percolation law of the lower Unconventional gas of wave excitation effect, it is impossible to be the reasonable extraction and comprehensive utilization of unconventional gas resource Reliable data are provided.
Utility model content
The problem of existing for prior art, it is real that the utility model provides a kind of excitation of electromagnetic wave Unconventional gas seepage flow Experiment device, the experimental provision have three axles loading function, the functional test to Unconventional gas seepage characteristic can be achieved, obtain The lower Unconventional gas seepage characteristic rule of excitation of electromagnetic wave effect, is unconventional gas resource, particularly hyposmosis resource Reasonable extraction and comprehensive utilization reliable data are provided.
To achieve these goals, the utility model adopts the following technical scheme that:A kind of excitation of electromagnetic wave is unconventional natural Gas seepage experimental apparatus, including three axle pressue devices, excitation of electromagnetic wave device and integrated control system;
The three axles pressue device is made up of forcing press and triaxial apparatus, and the forcing press includes upper plate, lower shoe, rigidity Post, hydraulic press and hydraulic press workbench, the triaxial apparatus include upper pressing cap, lower pressing cap, cylinder body, upper pressure seat, piston, seaming chuck, Push-down head and pressure pad;The upper plate is arranged on the top of lower shoe, and both are connected by rigid post, at the top of lower shoe Center is provided with hydraulic press, and hydraulic press workbench is provided with above hydraulic press;Set above hydraulic press workbench Cylinder body is equipped with, the upper pressing cap with central through hole is provided with the top of cylinder body, the upper pressing cap is connected with cylinder body by screw thread Connect;The lower pressing cap with central through hole is provided with the bottom of cylinder body, the lower pressing cap is connected with cylinder body by screw thread, in cylinder Internal top is provided with upper pressure seat, and the projection at the top of upper pressure seat is arranged in the central through hole of upper pressing cap;In lower pressing cap Portion is provided with piston, and the projection of piston base connects through after the central through hole of lower pressing cap with the upper surface of hydraulic press workbench Touch, the piston is engaged with cylinder body;Seaming chuck and push-down head are respectively arranged with cylinder body, is provided with the top of seaming chuck Seaming chuck first is raised, and the projection of seaming chuck first is embedded in the bottom of upper pressure seat, is provided with and pushes in the bottom of push-down head First first is raised, and the projection of push-down head first is embedded in the top of piston, and the seaming chuck is oppositely arranged with push-down head;Under The desorption gas venthole for being internally provided with insertion push-down head and piston of pressure head and piston, is set respectively in the inside of upper pressure seat There are the confined pressure air admission hole and data output channel of insertion upper pressure seat, insertion upper pressure seat is internally provided with upper pressure seat and seaming chuck With the Pore Pressure air admission hole and electromagnetic wave receiver hole of seaming chuck;
The excitation of electromagnetic wave device includes electromagnetic wave generator, the output end of electromagnetic wave generator and three axle pressue devices Electromagnetic wave receiver hole be connected;
The integrated control system includes main frame, temperature sensor, temperature recipient, foil gauge, strain receiver, control Gas switch, voltage-stablizer controlling switch, pressure gauge and pressure regulator valve;Gas cylinder the confined pressure air admission hole with three axle pressue devices, hole respectively Gap is pressed into stomata and hydraulic press is connected, and the first control gas is provided with the pipeline between gas cylinder and confined pressure air admission hole and is opened Pass, first pressure table, the first pressure regulator valve and the first voltage-stablizer, is provided with the pipeline between gas cylinder and Pore Pressure air admission hole Two control gas switch, second pressure gauge, the second pressure regulator valve and the second voltage-stablizer, are set on the pipeline between gas cylinder and hydraulic press It is equipped with the 3rd control gas switch, the 3rd pressure gauge, the 3rd pressure regulator valve and the 3rd voltage-stablizer;The temperature sensor and foil gauge Be arranged at specimen surface, the data wire of foil gauge through after the data output channel of upper pressure seat by straining receiver and main frame It is connected, the data wire of temperature sensor by temperature receptacle with main frame through being connected after the data output channel of upper pressure seat Connect.
Baffle plate is provided between the top of the piston and lower pressing cap.
Taper surface is provided with the upper and lower pressure head, and is furnished with pressure pad, the pressure pad passes through screw thread with upper and lower pressure head It is connected.
The strain receiver uses dynamic strain indicator.
The temperature receptacle uses multi-channel data acquisition instrument.
The beneficial effects of the utility model:
Experimental provision of the present utility model has three axles loading function, and the work(to Unconventional gas seepage characteristic can be achieved It can test, obtain the lower Unconventional gas seepage characteristic rule of excitation of electromagnetic wave effect, be unconventional gas resource, particularly The reasonable extraction and comprehensive utilization of hyposmosis resource provide reliable data.Experimental provision of the present utility model is simple in construction, property Can be reliable, easy to operate, cost-effective.
Brief description of the drawings
Fig. 1 is the structural representation of three axles pressue device and coupled foil gauge and temperature sensor of the present utility model Figure;
Fig. 2 is the structural representation of controller of the present utility model;
In figure:1-strain receiver, 2-temperature receptacle, 3-main frame, 4-voltage-stablizer controlling switch, 5-electromagnetic wave Generator, 6-electromagnetic wave delivery outlet, 7-control gas switch, 8-pressure gauge, 9-pressure regulator valve, 10-upper pressure seat, 11-on Pressure head, 12-sample, 13-push-down head, 14-baffle plate, 15-lower pressing cap, 16-hydraulic press, 17-confined pressure air admission hole, 18-electricity Magnetic wave receives entrance, 19-Pore Pressure air admission hole, 20-data output channel, 21-upper plate, 22-upper pressing cap, 23-cylinder Body, 24-foil gauge, 25-temperature sensor, 26-pressure pad, 27-rigid post, 28-piston, 29-desorption gas gas outlet, 30-hydraulic press workbench, 31-lower shoe, 32-controller housing.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus, including three axles pressurization dress Put, excitation of electromagnetic wave device and integrated control system.
The three axles pressue device is made up of forcing press and triaxial apparatus, the forcing press include upper plate 21, lower shoe 31, Rigid post 27, hydraulic press 16 and hydraulic press workbench 30, the triaxial apparatus include upper pressing cap 22, lower pressing cap 15, cylinder body 23, upper pressure Seat 10, piston 28, seaming chuck 11, push-down head 13 and pressure pad 26;The upper plate 21 is arranged on the top of lower shoe 31, Liang Zhetong Cross rigid post 27 to be connected, the top center of lower shoe 31 is provided with hydraulic press 16, set in the top of hydraulic press 16 There is hydraulic press workbench 30;The top of hydraulic press workbench 30 is provided with cylinder body 23, is provided with the outside on the top of cylinder body 23 Upper pressing cap 22 with central through hole, the upper pressing cap 22 are connected with cylinder body 23 by screw thread;In the outside of the bottom of cylinder body 23 The lower pressing cap 15 with central through hole is provided with, the lower pressing cap 15 is connected with cylinder body 23 by screw thread, in cylinder body 23 Top is provided with upper pressure seat 10, and the projection at the top of upper pressure seat 10 is through after the central through hole of upper pressing cap 22, the upper top with forcing press Plate 21 is in contact;Piston 28 is internally provided with lower pressing cap 15, the projection of the bottom of piston 28 is led to through the center of lower pressing cap 15 Kong Hou, it is in contact with the upper surface of hydraulic press workbench 30, the piston 28 is engaged with cylinder body 23;Set respectively in cylinder body 23 Seaming chuck 11 and push-down head 13 are equipped with, the projection of seaming chuck first is provided with the top of seaming chuck 11, the seaming chuck first is convex The bottom for being embedded in upper pressure seat 10 is acted, the projection of push-down head first is provided with the bottom of push-down head 13, the push-down head first is convex The top for being embedded in piston 28 is acted, the seaming chuck 11 is oppositely arranged with push-down head 13;In the inside of push-down head 13 and piston 28 It is provided with the desorption gas venthole of insertion push-down head 13 and piston 28, the desorption gas venthole and parsing gas outlet 29 are connected, and the confined pressure air admission hole 17 and data output channel of insertion upper pressure seat 10 are respectively arranged with the inside of upper pressure seat 10 20, in upper pressure seat 10 and the Pore Pressure air admission hole 19 and electricity that are internally provided with insertion upper pressure seat 10 and seaming chuck 11 of seaming chuck 11 Magnetic wave receiver hole, the electromagnetic wave receiver hole receive entrance 18 with electromagnetic wave and are connected.
The excitation of electromagnetic wave device includes electromagnetic wave generator 5, and the output end of electromagnetic wave generator 5 fills with the pressurization of three axles The electromagnetic wave receiver hole put is connected.
The integrated control system includes main frame 3, temperature sensor 25, temperature recipient 2, foil gauge 24, strain reception Device 1, control gas switch 7, voltage-stablizer, pressure gauge 8 and pressure regulator valve 9;The gas cylinder confined pressure air admission hole with three axle pressue devices respectively 17th, Pore Pressure air admission hole 19 and hydraulic press 16 are connected, and first is provided with the pipeline between gas cylinder and confined pressure air admission hole 17 Control gas switch, first pressure table, the first pressure regulator valve and the first voltage-stablizer, the pipe between gas cylinder and Pore Pressure air admission hole 19 The second control gas switch, second pressure gauge, the second pressure regulator valve and the second voltage-stablizer are provided with road, in gas cylinder and hydraulic press 16 Between pipeline on be provided with the 3rd control gas switch, the 3rd pressure gauge, the 3rd pressure regulator valve and the 3rd voltage-stablizer;The temperature Sensor 25 and foil gauge 24 are arranged at the surface of sample 12, and the data output of data wire through the upper pressure seat 10 of foil gauge 24 is led to It is connected behind road 20 by straining receiver 1 with main frame 3, the data wire of temperature sensor 25 passes through the data output of upper pressure seat 10 It is connected after passage 20 by temperature receptacle 2 with main frame 3.In the present embodiment, the strain receiver 1 uses dynamic strain Instrument, temperature receptacle 2 use multi-channel data acquisition instrument.
In the present embodiment, the main frame 3, temperature recipient 2, strain receiver 1, control gas switch 7, pressure gauge 8, The voltage-stablizer controlling switch 4 of pressure regulator valve 9, electromagnetic wave generator 5 and voltage-stablizer is arranged on controller housing 32, electromagnetic wave hair The output end of raw device 5 is connected with the electromagnetic wave delivery outlet 6 on controller housing 32.Pressure gauge 8 is provided with three, respectively institute First pressure table, second pressure gauge and the 3rd pressure gauge stated, it is respectively used to determine confined pressure, Pore Pressure and axle pressure;Pressure regulator valve 9 is set Three are equipped with, is respectively described the first pressure regulator valve, the second pressure regulator valve and the 3rd pressure regulator valve, is respectively used to adjust confined pressure, hole Pressure and axle pressure;Control gas switch 7 is provided with three, is respectively that described first controls gas switch, the second control gas to open Close and the 3rd controls gas switch;Voltage-stablizer controlling switch is provided with three, and the control of respectively the first described voltage-stablizer is opened The controlling switch of pass, the controlling switch of the second voltage-stablizer and the 3rd voltage-stablizer.
In order to position piston 28, baffle plate 14 is provided between the top of the piston 28 and lower pressing cap 15.In this implementation In example, two stage steps are provided with the madial wall of the lower pressing cap 15, cylinder body 23 is fixed on first order step, and baffle plate 14 is solid It is scheduled between the bottom surface of second level step and cylinder body 23.
Taper surface is provided with the seaming chuck 11 and push-down head 13, and is furnished with pressure pad 26, the pressure pad 26 and upper pressure First 11 are connected with push-down head 13 by screw thread.
Illustrate first use process of the present utility model below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, before experiment, the first brill center preformed hole at the central upper portion of coal and rock sample 12, in described Heart preformed hole is corresponding with electromagnetic wave receiver hole.In the space of sealing, by sample 12 between seaming chuck 11 and push-down head 13 It is fixed, in the surface mounting temperature sensor 25 of sample 12 and foil gauge 24;And in sample 12, seaming chuck 11 and push-down head 13 It is outside heat-shrink tube is set, sealed by heat-shrink tube, the both ends of heat-shrink tube are fixed on seaming chuck 11 by pressure pad 26 respectively On push-down head 13.
The first control gas switch is opened, the gas for loading confined pressure enters from the confined pressure air admission hole 17 of upper pressure seat 10, from enclosing The sample 12 that the gas that stomata 17 is filled with directly acts on heat-shrink tube parcel is pressed into, is loaded on around sample 12;Test axis pressure It is to be applied by forcing press, opens the 3rd control gas switch, pressure is applied by hydraulic press 16 and hydraulic press workbench 30 Piston 28 is acted on, piston 28 promotes push-down head 13, and axial compressive force is loaded to sample 12, realizes the three axles loading to sample 12. The second control gas switch is opened, gas can be imported first by Pore Pressure air admission hole 19, after sample 12 fully absorption, then pass through solution Analysis gas outlet 29 is discharged, and carries out seepage discharge measure.Electromagnetic wave is produced by electromagnetic wave generator 5, via electromagnetic wave delivery outlet 6 Conduction to electromagnetic wave receives the importing of entrance 18 and acts on sample 12, and sample 12 is swashed in Unconventional gas desorption process Encourage;Figurate number by the temperature obtained in the experimentation of sample 12 and is become by the temperature sensor 25 and foil gauge 24 on the surface of sample 12 According to data are received by temperature receptacle 2 and strain receiver 1, and are sent to main frame 3.Can be with by parsing gas outlet 29 Measure gas flow amount, you can obtain the data such as corresponding Unconventional gas desorption rate, the permeability of sample 12, compare electromagnetism The temperature of sample 12 in ripple mechanism draws excitation of electromagnetic wave in the Percolation Law of sample 12, to rationally increasing production unconventional day Right air lift supplies foundation.

Claims (5)

1. a kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus, it is characterised in that including three axle pressue devices, electromagnetism Wave excitation device and integrated control system;
The three axles pressue device is made up of forcing press and triaxial apparatus, the forcing press include upper plate, lower shoe, rigid post, Hydraulic press and hydraulic press workbench, the triaxial apparatus include upper pressing cap, lower pressing cap, cylinder body, upper pressure seat, piston, seaming chuck, pushed Head and pressure pad;The upper plate is arranged on the top of lower shoe, and both are connected by rigid post, in the top center of lower shoe Position is provided with hydraulic press, and hydraulic press workbench is provided with above hydraulic press;It is provided with above hydraulic press workbench Cylinder body, the upper pressing cap with central through hole is provided with the top of cylinder body, and the upper pressing cap is connected with cylinder body by screw thread; The bottom of cylinder body is provided with the lower pressing cap with central through hole, and the lower pressing cap is connected with cylinder body by screw thread, in cylinder body Top be provided with upper pressure seat, the projection at the top of upper pressure seat is arranged in the central through hole of upper pressing cap;Set in the inside of lower pressing cap It is equipped with piston, the projection of piston base is in contact through after the central through hole of lower pressing cap with the upper surface of hydraulic press workbench, institute Piston is stated to be engaged with cylinder body;Seaming chuck and push-down head are respectively arranged with cylinder body, is provided with and presses at the top of seaming chuck First first is raised, and the projection of seaming chuck first is embedded in the bottom of upper pressure seat, and push-down head the is provided with the bottom of push-down head One is raised, and the projection of push-down head first is embedded in the top of piston, and the seaming chuck is oppositely arranged with push-down head;In push-down head And the desorption gas venthole for being internally provided with insertion push-down head and piston of piston, it is respectively arranged with and passes through in the inside of upper pressure seat The confined pressure air admission hole and data output channel of logical upper pressure seat, insertion upper pressure seat and upper is internally provided with upper pressure seat and seaming chuck The Pore Pressure air admission hole and electromagnetic wave receiver hole of pressure head;
The excitation of electromagnetic wave device includes electromagnetic wave generator, the output end of electromagnetic wave generator and the electricity of three axle pressue devices Magnetic wave receiver hole is connected;
The integrated control system includes main frame, temperature sensor, temperature recipient, foil gauge, strain receiver, control gas Switch, voltage-stablizer controlling switch, pressure gauge and pressure regulator valve;Gas cylinder confined pressure air admission hole, the Pore Pressure with three axle pressue devices respectively Air admission hole and hydraulic press are connected, and the first control gas switch, are provided with the pipeline between gas cylinder and confined pressure air admission hole One pressure gauge, the first pressure regulator valve and the first voltage-stablizer, the second control is provided with the pipeline between gas cylinder and Pore Pressure air admission hole Gas switch, second pressure gauge, the second pressure regulator valve and the second voltage-stablizer processed, it is provided with the pipeline between gas cylinder and hydraulic press 3rd control gas switch, the 3rd pressure gauge, the 3rd pressure regulator valve and the 3rd voltage-stablizer;The temperature sensor and foil gauge are all provided with Put in specimen surface, the data wire of foil gauge by straining receiver with main frame through being connected after the data output channel of upper pressure seat Connect, the data wire of temperature sensor by temperature receptacle with main frame through being connected after the data output channel of upper pressure seat.
2. excitation of electromagnetic wave Unconventional gas seepage experimental apparatus according to claim 1, it is characterised in that described Baffle plate is provided between the top of piston and lower pressing cap.
3. excitation of electromagnetic wave Unconventional gas seepage experimental apparatus according to claim 1, it is characterised in that described Taper surface is provided with upper and lower pressure head, and is furnished with pressure pad, the pressure pad is connected with upper and lower pressure head by screw thread.
4. excitation of electromagnetic wave Unconventional gas seepage experimental apparatus according to claim 1, it is characterised in that described to answer Become receiver and use dynamic strain indicator.
5. excitation of electromagnetic wave Unconventional gas seepage experimental apparatus according to claim 1, it is characterised in that the temperature Degree receiver uses multi-channel data acquisition instrument.
CN201720722014.3U 2017-06-19 2017-06-19 A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus Active CN206891896U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107101907A (en) * 2017-06-19 2017-08-29 辽宁工程技术大学 A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107101907A (en) * 2017-06-19 2017-08-29 辽宁工程技术大学 A kind of excitation of electromagnetic wave Unconventional gas seepage experimental apparatus

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