CN108397182A - Electric pulse cooperates with the device and method in the anti-reflection coal seam of frozen-thawed - Google Patents
Electric pulse cooperates with the device and method in the anti-reflection coal seam of frozen-thawed Download PDFInfo
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- CN108397182A CN108397182A CN201810389045.0A CN201810389045A CN108397182A CN 108397182 A CN108397182 A CN 108397182A CN 201810389045 A CN201810389045 A CN 201810389045A CN 108397182 A CN108397182 A CN 108397182A
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- coal seam
- liquid nitrogen
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- 239000003245 coal Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 216
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 108
- 238000002347 injection Methods 0.000 claims abstract description 75
- 239000007924 injection Substances 0.000 claims abstract description 75
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 238000010257 thawing Methods 0.000 claims abstract description 48
- 238000005553 drilling Methods 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000003667 anti-reflective effect Effects 0.000 claims description 7
- 238000005086 pumping Methods 0.000 claims description 6
- 238000009834 vaporization Methods 0.000 claims description 6
- 230000008016 vaporization Effects 0.000 claims description 6
- 230000035939 shock Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 7
- 238000003795 desorption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004520 electroporation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical & Material Sciences (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
The invention discloses a kind of devices in the anti-reflection coal seam of electric pulse collaboration frozen-thawed, including pulsed discharge reactor, cable, high-voltage pulse generator, high pressure water injection pipe, hole sealing device, note nitrogen pipe, water source, high-pressure hydraulic pump, liquid nitrogen pump and liquid nitrogen source；It is provided with water injection valve and pressure gauge on high pressure water injection pipe, notes and is provided with nitrogen injecting valua on nitrogen pipe, water injection valve, pressure gauge and nitrogen injecting valua are respectively positioned on outside freeze thawing drilling.Invention additionally discloses the methods that a kind of device in the anti-reflection coal seam of electric pulse collaboration frozen-thawed carries out the anti-reflection coal seam of freeze thawing.It is reasonable design of the present invention, simple in structure, easily operated, water filling is being carried out to coal seam first, then it carries out electric pulse and impacts coal seam, cracks in coal seam can be made to increase, frozen-thawed efficiency is improved, and carries out cycle operation, the ice be conducive in crack dissolves, the permeability for substantially improving low permeability coal seam helps to improve the effect of gas exhaust.
Description
Technical field
The invention belongs to the anti-reflection technical field of low permeability coal seam more particularly to a kind of electric pulse collaboration frozen-thawed are anti-reflection
The device and method in coal seam.
Background technology
China's complex geologic conditions belong to hyposmosis gassy seam more, with the increase of mining depth and exploitation scale, ground
Stress, gas bearing capacity and gas pressure increase, and condition of coal seam occurrence and mining environment certainly will badly influence Safety of Coal Mine Production.
How quickly, efficient, high yield mash gas extraction, the key for becoming energy development and utilizing.Nowadays anti-reflection mode both domestic and external
Also revolution is carried out, hydraulic fracturing anti-reflection, deep hole blasting, intensive drilling or the requirement that present low permeability coal seam cannot be met,
Or there are certain defect, such as the crack that hydraulic fracturing is formed is few, and waste water resource；Bore process is wanted in deep hole blasting
Ask high, pollution is big；The intensive anti-reflection complex process of drilling.The present anti-reflection succinct convenience of frozen-thawed, and antireflective effect pole
It is good, but liquid nitrogen needs coal seam reservoirs to satisfy water, how coal seam reservoirs to be made more effectively to store water, becomes the antireflective difficult point of liquefied ammonia freeze thawing.This
Invention uses electroporation, carries out preliminary fracturing to coal seam reservoirs first, enables water to enter in deeper coal seam, reinject
It is anti-reflection to carry out liquid nitrogen for liquid nitrogen.
Invention content
For the present invention in order to solve shortcoming in the prior art, providing one kind can make cracks in coal seam increase, improve liquid nitrogen
The device and method in the good anti-reflection coal seam of electric pulse collaboration frozen-thawed of freeze thawing effect, recyclable operation, antireflective effect.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：Electric pulse cooperates with the anti-reflection coal seam of frozen-thawed
Device, including pulsed discharge reactor, cable, high-voltage pulse generator, high pressure water injection pipe, hole sealing device, note nitrogen pipe, water
Source, high-pressure hydraulic pump, liquid nitrogen pump and liquid nitrogen source；
High pressure water injection pipe, cable and note nitrogen pipe are extend into freeze thawing drilling, and hole sealing device is arranged at the aperture that freeze thawing drills will
The outside of high pressure water injection pipe, cable and note nitrogen pipe is sealed, and pulsed discharge reactor is fixed at high pressure by link
The outlet end of water injection pipe, cable are connect in one end of freeze thawing bore inner with pulsed discharge reactor, and cable is outer in freeze thawing drilling
The one end in portion is connect with high-voltage pulse generator, and the input end of high pressure water injection pipe is connect with water source, and high-pressure hydraulic pump is arranged in high pressure
On water injection pipe and neighbouring water source, the input end of note nitrogen pipe are connect with liquid nitrogen source, and liquid nitrogen pump is arranged on note nitrogen pipe and neighbouring liquid nitrogen
Source.
Be provided with water injection valve and pressure gauge on high pressure water injection pipe, note and be provided with nitrogen injecting valua on nitrogen pipe, water injection valve, pressure gauge and
Nitrogen injecting valua is respectively positioned on outside freeze thawing drilling.
In the outside of hole sealing device between the outlet end of high pressure water injection pipe, cable is arranged simultaneously along the outer wall of high pressure water injection pipe
It is bonded by mackintosh, the junction insulated enclosure of cable and pulsed discharge reactor.
Electric pulse cooperates with the method that the device in the anti-reflection coal seam of frozen-thawed carries out the anti-reflection coal seam of freeze thawing, includes the following steps：
（1）, selection job location coal seam, drill out freeze thawing drilling to coal seam construction；
（2）, by pulsed discharge reactor by link be mounted in high pressure water injection pipe one end, cable one end and pulsed discharge is anti-
Device is answered to connect, then the length direction by cable along high pressure water injection pipe is fixed to using mackintosh on high pressure water injection pipe, will be high
One end of pressure injection water pipe one end and note nitrogen pipe equipped with pulsed discharge reactor is sent into together in freeze thawing drilling, by the cable other end
It is connect with the high-voltage pulse generator of outside, high pressure water injection pipe, high-pressure hydraulic pump is connected with water source, and in high pressure water injection Guan Shangan
It is filled with water valve and pressure gauge, note nitrogen pipe, liquid nitrogen pump are connected with liquid nitrogen source, nitrogen injecting valua is installed on liquid nitrogen container, finally using envelope
Aperture apparatus carries out sealing of hole at the aperture that freeze thawing drills；
（3）, open water injection valve, start high-pressure hydraulic pump, high-pressure hydraulic pump by water from high pressure water injection pipe to freeze thawing drilling in water filling, work as pressure
Power table shows that pressure reaches 5-10Mpa and stops water filling, closes high-pressure hydraulic pump and water injection valve；
（4）, open high-voltage pulse generator power supply, charge to pulsed discharge reactor, when voltage reaches 30-350KV,
Pulsed discharge reactor starts to discharge, and generates electrohydraulic effect between water power in freeze thawing drills, sends out shock wave, shock wave is to coal
Layer is destroyed, and fracture network is formed, and high-voltage pulse generator is closed after discharging 40-60 times；
（5）, open nitrogen injecting valua, start liquid nitrogen pump, liquid nitrogen pump by liquid nitrogen from note nitrogen pipe to freeze thawing drilling in inject liquid nitrogen, make generation
The coal seam of fracture network forms temperature gradient, low temperature liquid nitrogen and contact with moisture, liquid nitrogen rapid vaporization, the nitrogen volume expansion punching of vaporization
Hit coal wall；Amount of liquid nitrogen in freeze thawing drilling reaches the water whole glaciation that can make in coal seam, closes nitrogen injecting valua, stops fluid injection
Nitrogen, anti-reflection coal seam；
（6）, repeat step（3）~（5）, until reaching scheduled antireflective effect and anti-reflection range；
（7）, high-pressure hydraulic pump and liquid nitrogen pump removed, open water injection valve, freeze thawing drilling mesohigh water released, water filling is then shut off
Valve；
（8）, pulsed discharge reactor and high pressure water injection pipe are removed to freeze thawing drilling, then gas pumping pipe is installed, with external watt
This extraction pipe network connects, and carries out gas pumping.
Above-mentioned technical proposal is used, the invention has the advantages that：
（1）Before injecting liquid nitrogen, first progress electric pulse is anti-reflection, and fracturing for the first time is carried out to coal seam, and then increases the full of coal seam
Water rate, and then improve frozen-thawed range and coal body antireflective effect.Therefore the present invention has very the permeance property of low permeability coal seam
Big improvement.
（2）Due to the desorption of low temperature effect gas, and simple liquid nitrogen is anti-reflection, and the heating-up time is slow, and circulation time is long.Electric arteries and veins
Punching can improve the temperature of water in coal seam in a short time, be greatly improved to anti-reflection and gas the desorption of coal body.
In conclusion needing coal seam to have more crack present invention is generally directed to frozen-thawed is anti-reflection, is conducive to moisture and fills
Divide and enter, and after frozen-thawed the problem of temperature influence desorption of mash gas.It is reasonable design of the present invention, simple in structure, easily operated,
Water filling is carried out to coal seam first, electric pulse is then carried out and impacts coal seam, cracks in coal seam can be made to increase, improves frozen-thawed effect
Rate, and cycle operation is carried out, the ice be conducive in crack dissolves, and substantially improves the permeability of low permeability coal seam, helps to improve
The effect of gas exhaust.
Description of the drawings
Fig. 1 is the structural schematic diagram of the present invention.
Specific implementation mode
As shown in Figure 1, the device in the anti-reflection coal seam of electric pulse collaboration frozen-thawed of the present invention, including pulsed discharge reactor
1, cable 2, high-voltage pulse generator 3, high pressure water injection pipe 4, hole sealing device 5, note nitrogen pipe 6, water source 7, high-pressure hydraulic pump 8, liquid nitrogen pump 9
With liquid nitrogen source 10；
High pressure water injection pipe 4, cable 2 and note nitrogen pipe 6 are extend into freeze thawing drilling 11, and hole sealing device 5 is arranged in freeze thawing drilling 11
The outside of high pressure water injection pipe 4, cable 2 and note nitrogen pipe 6 is sealed at aperture, pulsed discharge reactor 1 is solid by link
Fixed to be arranged in the outlet end of high pressure water injection pipe 4, the one end of cable 2 inside freeze thawing drilling 11 is connect with pulsed discharge reactor 1,
The one end of cable 2 outside freeze thawing drilling 11 is connect with high-voltage pulse generator 3, and input end and the water source 7 of high pressure water injection pipe 4 connect
It connects, high-pressure hydraulic pump 8 is arranged on high pressure water injection pipe 4 and neighbouring water source 7, and the input end of note nitrogen pipe 6 is connect with liquid nitrogen source 10, liquid nitrogen
9 setting of pump is on note nitrogen pipe 6 and adjacent to liquid nitrogen source 10.
It is provided with water injection valve 12 and pressure gauge 13 on high pressure water injection pipe 4, nitrogen injecting valua 14, water injection valve are provided on note nitrogen pipe 6
12, pressure gauge 13 and nitrogen injecting valua 14 are respectively positioned on outside freeze thawing drilling 11.
In the outside of hole sealing device 5 between the outlet end of high pressure water injection pipe 4, cable 2 is set along the outer wall of high pressure water injection pipe 4
It sets and is bonded by mackintosh, the junction insulated enclosure of cable 2 and pulsed discharge reactor 1.
Pulsed discharge reactor 1, high-voltage pulse generator 3, hole sealing device 5, high-pressure hydraulic pump 8, liquid nitrogen pump 9 in the present invention
It is existing mature technology with liquid nitrogen source 10, specific configuration repeats no more.
Electric pulse cooperates with the method that the device in the anti-reflection coal seam of frozen-thawed carries out the anti-reflection coal seam of freeze thawing, includes the following steps：
（1）, selection job location coal seam 15, drill out freeze thawing drilling 11 to the construction of coal seam 15；
（2）, by pulsed discharge reactor 1 by link be mounted in high pressure water injection pipe 4 one end, 2 one end of cable is put with pulse
Electric reactor 1 connects, and then the length direction by cable 2 along high pressure water injection pipe 4 is fixed to high pressure water injection pipe 4 using mackintosh
On, one end of the one end of high pressure water injection pipe 4 equipped with pulsed discharge reactor 1 and note nitrogen pipe 6 is sent into together in freeze thawing drilling 11,
The high-voltage pulse generator 3 of 2 other end of cable and outside is connected, high pressure water injection pipe 4, high-pressure hydraulic pump 8 and water source 7 are connected,
And water injection valve 12 and pressure gauge 13 are installed on high pressure water injection pipe 4, note nitrogen pipe, liquid nitrogen pump 9 are connected with liquid nitrogen source 10, in liquid nitrogen
Nitrogen injecting valua 14 is installed on tank, hole sealing device 5 is finally used to carry out sealing of hole at the aperture of freeze thawing drilling 11；
（3）, open water injection valve 12, start high-pressure hydraulic pump 8, high-pressure hydraulic pump 8 by water from high pressure water injection pipe 4 to freeze thawing drilling 11 in note
Water, when pressure gauge 13 shows that pressure reaches 5-10Mpa and stops water filling, closing high-pressure hydraulic pump 8 and water injection valve 12；
（4）, open high-voltage pulse generator 3 power supply, charge to pulsed discharge reactor 1, voltage reaches 30-350KV
When, pulsed discharge reactor 1 starts to discharge, and generates electrohydraulic effect between water power in freeze thawing drilling 11, sends out shock wave, impacts
Wave destroys coal seam 15, forms fracture network, and high-voltage pulse generator 3 is closed after discharging 40-60 times；
（5）, open nitrogen injecting valua 14, start liquid nitrogen pump 9, liquid nitrogen pump 9 by liquid nitrogen from note nitrogen pipe to freeze thawing drilling 11 in inject liquid nitrogen,
The coal seam 15 of generation fracture network is set to form temperature gradient, low temperature liquid nitrogen and contact with moisture, liquid nitrogen rapid vaporization, the nitrogen of vaporization
Product expansion impact coal wall；Amount of liquid nitrogen in freeze thawing drilling 11 reaches the water whole glaciation that can make in coal seam 15, closes note
Nitrogen valve 14 stops fluid injection nitrogen, anti-reflection coal seam 15；
（6）, repeat step（3）~（5）, until reaching scheduled antireflective effect and anti-reflection range；
（7）, high-pressure hydraulic pump 8 and liquid nitrogen pump 9 removed, open water injection valve 12, the freeze thawing 11 mesohigh water that drill released, are then closed
Close water injection valve 12；
（8）, pulsed discharge reactor 1 and high pressure water injection pipe 4 are removed to freeze thawing drilling 11, then gas pumping pipe is installed, and it is external
Gas drainage pipe network connection, carry out gas pumping.
The present embodiment is not to be made any form of restriction to shape, material, the structure etc. of the present invention, every according to this hair
Bright technical spirit belongs to the technology of the present invention side to any simple modification, equivalent change and modification made by above example
The protection domain of case.
Claims (4)
1. electric pulse cooperates with the device in the anti-reflection coal seam of frozen-thawed, it is characterised in that：Including pulsed discharge reactor, cable, height
Press impulse generator, high pressure water injection pipe, hole sealing device, note nitrogen pipe, water source, high-pressure hydraulic pump, liquid nitrogen pump and liquid nitrogen source；
High pressure water injection pipe, cable and note nitrogen pipe are extend into freeze thawing drilling, and hole sealing device is arranged at the aperture that freeze thawing drills will
The outside of high pressure water injection pipe, cable and note nitrogen pipe is sealed, and pulsed discharge reactor is fixed at high pressure by link
The outlet end of water injection pipe, cable are connect in one end of freeze thawing bore inner with pulsed discharge reactor, and cable is outer in freeze thawing drilling
The one end in portion is connect with high-voltage pulse generator, and the input end of high pressure water injection pipe is connect with water source, and high-pressure hydraulic pump is arranged in high pressure
On water injection pipe and neighbouring water source, the input end of note nitrogen pipe are connect with liquid nitrogen source, and liquid nitrogen pump is arranged on note nitrogen pipe and neighbouring liquid nitrogen
Source.
2. the device in the anti-reflection coal seam of electric pulse collaboration frozen-thawed according to claim 1, it is characterised in that：High pressure water injection
It is provided with water injection valve and pressure gauge on pipe, notes and is provided with nitrogen injecting valua on nitrogen pipe, water injection valve, pressure gauge and nitrogen injecting valua, which are respectively positioned on, to be frozen
It is external to melt drilling.
3. the device in the anti-reflection coal seam of electric pulse collaboration frozen-thawed according to claim 2, it is characterised in that：It is filled in sealing of hole
To between the outlet end of high pressure water injection pipe, cable is arranged along the outer wall of high pressure water injection pipe and is glued by mackintosh for the outside set
It connects, the junction insulated enclosure of cable and pulsed discharge reactor.
4. carrying out the anti-reflection coal seam of freeze thawing using the device in the anti-reflection coal seam of electric pulse as claimed in claim 3 collaboration frozen-thawed
Method, it is characterised in that：Include the following steps：
（1）, selection job location coal seam, drill out freeze thawing drilling to coal seam construction；
（2）, by pulsed discharge reactor by link be mounted in high pressure water injection pipe one end, cable one end and pulsed discharge is anti-
Device is answered to connect, then the length direction by cable along high pressure water injection pipe is fixed to using mackintosh on high pressure water injection pipe, will be high
One end of pressure injection water pipe one end and note nitrogen pipe equipped with pulsed discharge reactor is sent into together in freeze thawing drilling, by the cable other end
It is connect with the high-voltage pulse generator of outside, high pressure water injection pipe, high-pressure hydraulic pump is connected with water source, and in high pressure water injection Guan Shangan
It is filled with water valve and pressure gauge, note nitrogen pipe, liquid nitrogen pump are connected with liquid nitrogen source, nitrogen injecting valua is installed on liquid nitrogen container, finally using envelope
Aperture apparatus carries out sealing of hole at the aperture that freeze thawing drills；
（3）, open water injection valve, start high-pressure hydraulic pump, high-pressure hydraulic pump by water from high pressure water injection pipe to freeze thawing drilling in water filling, work as pressure
Power table shows that pressure reaches 5-10Mpa and stops water filling, closes high-pressure hydraulic pump and water injection valve；
（4）, open high-voltage pulse generator power supply, charge to pulsed discharge reactor, when voltage reaches 30-350KV,
Pulsed discharge reactor starts to discharge, and generates electrohydraulic effect between water power in freeze thawing drills, sends out shock wave, shock wave is to coal
Layer is destroyed, and fracture network is formed, and high-voltage pulse generator is closed after discharging 40-60 times；
（5）, open nitrogen injecting valua, start liquid nitrogen pump, liquid nitrogen pump by liquid nitrogen from note nitrogen pipe to freeze thawing drilling in inject liquid nitrogen, make generation
The coal seam of fracture network forms temperature gradient, low temperature liquid nitrogen and contact with moisture, liquid nitrogen rapid vaporization, the nitrogen volume expansion punching of vaporization
Hit coal wall；Amount of liquid nitrogen in freeze thawing drilling reaches the water whole glaciation that can make in coal seam, closes nitrogen injecting valua, stops fluid injection
Nitrogen, anti-reflection coal seam；
（6）, repeat step（3）~（5）, until reaching scheduled antireflective effect and anti-reflection range；
（7）, high-pressure hydraulic pump and liquid nitrogen pump removed, open water injection valve, freeze thawing drilling mesohigh water released, water filling is then shut off
Valve；
（8）, pulsed discharge reactor and high pressure water injection pipe are removed to freeze thawing drilling, then gas pumping pipe is installed, with external watt
This extraction pipe network connects, and carries out gas pumping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810389045.0A CN108397182B (en) | 2018-04-27 | 2018-04-27 | Device and method for enhancing permeability of coal seam through electric pulse and liquid nitrogen freeze thawing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810389045.0A CN108397182B (en) | 2018-04-27 | 2018-04-27 | Device and method for enhancing permeability of coal seam through electric pulse and liquid nitrogen freeze thawing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108397182A true CN108397182A (en) | 2018-08-14 |
| CN108397182B CN108397182B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810389045.0A Active CN108397182B (en) | 2018-04-27 | 2018-04-27 | Device and method for enhancing permeability of coal seam through electric pulse and liquid nitrogen freeze thawing |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356640A (en) * | 2018-10-25 | 2019-02-19 | 四川大学 | A kind of broken coal permeability-increasing gas enhanced gas extraction system of the cold alternating of heat |
| CN109538209A (en) * | 2018-09-11 | 2019-03-29 | 中国矿业大学 | A kind of reduction coal seam tight roof method based on electroporation |
| CN109611069A (en) * | 2018-12-25 | 2019-04-12 | 徐州工程学院 | A kind of big temperature difference Frozen-thawed cycled system improving ground drilling gas pumping effect |
| CN109854210A (en) * | 2019-03-05 | 2019-06-07 | 重庆大学 | Using the gas pumping method and extraction system of liquid nitrogen and steam fracturing coal seam |
| CN110578549A (en) * | 2019-07-23 | 2019-12-17 | 华北科技学院 | Electric explosion and seismic fracturing cooperated microwave heat drive gas extraction system and method |
| CN110821491A (en) * | 2019-11-10 | 2020-02-21 | 徐州秩润矿山设备科技有限公司 | Wireless control's coal seam high pressure water injection car |
| CN111237013A (en) * | 2020-03-13 | 2020-06-05 | 神华神东煤炭集团有限责任公司 | Drainage method and device |
| CN113818892A (en) * | 2021-07-29 | 2021-12-21 | 中国铁建重工集团股份有限公司 | Rock breaking and tunneling device and rock breaking method thereof |
| CN114396244A (en) * | 2021-12-21 | 2022-04-26 | 重庆大学 | Deep coal seam group well up-down combined permeability-increasing gas extraction method |
| CN114575814A (en) * | 2022-03-07 | 2022-06-03 | 徐州工程学院 | Liquid nitrogen combined microwave fracturing coal seam permeability increasing method based on nano barium titanate |
| CN114575818A (en) * | 2022-03-31 | 2022-06-03 | 中国石油大学(北京) | Fracturing method based on gas-liquid driving pulse |
| CN115030691A (en) * | 2022-06-20 | 2022-09-09 | 太原理工大学 | Electric pulse heat injection synergistic enhanced gas extraction method and device for low-permeability coal bed |
| CN114575814B (en) * | 2022-03-07 | 2024-07-09 | 徐州工程学院 | Liquid nitrogen combined microwave fracturing coal seam permeability increasing method based on nano barium titanate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014122495A1 (en) * | 2013-02-05 | 2014-08-14 | Triple D Technologies Inc. | System and method to initiate permeability in bore holes without perforating tools |
| CN105298462A (en) * | 2015-11-06 | 2016-02-03 | 中国矿业大学 | High-power electric knocking assisted hydrofracture coal seam permeability increase method for end-located drainage roadway |
| CN106285605A (en) * | 2016-11-01 | 2017-01-04 | 中国矿业大学 | A kind of microwave liquid nitrogen works in coordination with freeze thawing coal seam anti-reflection method |
| CN106337672A (en) * | 2016-10-25 | 2017-01-18 | 中国矿业大学 | Method for extracting coal bed gas from circulating pulse type low temperature freeze-thawed anti-reflection coal |
| CN208168859U (en) * | 2018-04-27 | 2018-11-30 | 河南理工大学 | The device in the electric pulse collaboration anti-reflection coal seam of frozen-thawed |
-
2018
- 2018-04-27 CN CN201810389045.0A patent/CN108397182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014122495A1 (en) * | 2013-02-05 | 2014-08-14 | Triple D Technologies Inc. | System and method to initiate permeability in bore holes without perforating tools |
| CN105298462A (en) * | 2015-11-06 | 2016-02-03 | 中国矿业大学 | High-power electric knocking assisted hydrofracture coal seam permeability increase method for end-located drainage roadway |
| CN106337672A (en) * | 2016-10-25 | 2017-01-18 | 中国矿业大学 | Method for extracting coal bed gas from circulating pulse type low temperature freeze-thawed anti-reflection coal |
| CN106285605A (en) * | 2016-11-01 | 2017-01-04 | 中国矿业大学 | A kind of microwave liquid nitrogen works in coordination with freeze thawing coal seam anti-reflection method |
| CN208168859U (en) * | 2018-04-27 | 2018-11-30 | 河南理工大学 | The device in the electric pulse collaboration anti-reflection coal seam of frozen-thawed |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538209A (en) * | 2018-09-11 | 2019-03-29 | 中国矿业大学 | A kind of reduction coal seam tight roof method based on electroporation |
| CN109356640A (en) * | 2018-10-25 | 2019-02-19 | 四川大学 | A kind of broken coal permeability-increasing gas enhanced gas extraction system of the cold alternating of heat |
| CN109611069A (en) * | 2018-12-25 | 2019-04-12 | 徐州工程学院 | A kind of big temperature difference Frozen-thawed cycled system improving ground drilling gas pumping effect |
| CN109854210A (en) * | 2019-03-05 | 2019-06-07 | 重庆大学 | Using the gas pumping method and extraction system of liquid nitrogen and steam fracturing coal seam |
| CN110578549A (en) * | 2019-07-23 | 2019-12-17 | 华北科技学院 | Electric explosion and seismic fracturing cooperated microwave heat drive gas extraction system and method |
| CN110821491A (en) * | 2019-11-10 | 2020-02-21 | 徐州秩润矿山设备科技有限公司 | Wireless control's coal seam high pressure water injection car |
| CN111237013B (en) * | 2020-03-13 | 2022-03-22 | 神华神东煤炭集团有限责任公司 | Drainage method and device |
| CN111237013A (en) * | 2020-03-13 | 2020-06-05 | 神华神东煤炭集团有限责任公司 | Drainage method and device |
| CN113818892A (en) * | 2021-07-29 | 2021-12-21 | 中国铁建重工集团股份有限公司 | Rock breaking and tunneling device and rock breaking method thereof |
| CN114396244A (en) * | 2021-12-21 | 2022-04-26 | 重庆大学 | Deep coal seam group well up-down combined permeability-increasing gas extraction method |
| CN114396244B (en) * | 2021-12-21 | 2023-10-31 | 重庆大学 | Method for extracting gas by up-and-down combined permeability-increasing of deep coal seam group well |
| CN114575814A (en) * | 2022-03-07 | 2022-06-03 | 徐州工程学院 | Liquid nitrogen combined microwave fracturing coal seam permeability increasing method based on nano barium titanate |
| CN114575814B (en) * | 2022-03-07 | 2024-07-09 | 徐州工程学院 | Liquid nitrogen combined microwave fracturing coal seam permeability increasing method based on nano barium titanate |
| CN114575818A (en) * | 2022-03-31 | 2022-06-03 | 中国石油大学(北京) | Fracturing method based on gas-liquid driving pulse |
| CN115030691A (en) * | 2022-06-20 | 2022-09-09 | 太原理工大学 | Electric pulse heat injection synergistic enhanced gas extraction method and device for low-permeability coal bed |
| CN115030691B (en) * | 2022-06-20 | 2023-12-15 | 太原理工大学 | Low-permeability coal seam electric pulse heat injection collaborative reinforcement gas extraction method and device |
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