CN104563958B - A kind of hole sealing device - Google Patents
A kind of hole sealing device Download PDFInfo
- Publication number
- CN104563958B CN104563958B CN201510010812.9A CN201510010812A CN104563958B CN 104563958 B CN104563958 B CN 104563958B CN 201510010812 A CN201510010812 A CN 201510010812A CN 104563958 B CN104563958 B CN 104563958B
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- China
- Prior art keywords
- expansion assembly
- tube
- pump
- pump drainage
- concentric tube
- Prior art date
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- 238000007789 sealing Methods 0.000 title claims abstract description 62
- 238000007569 slipcasting Methods 0.000 claims abstract description 35
- 238000004880 explosion Methods 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004744 fabric Substances 0.000 claims abstract description 10
- 239000002360 explosive Substances 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims abstract description 3
- 238000005553 drilling Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 11
- 239000011440 grout Substances 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 7
- 230000010354 integration Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 239000011799 hole material Substances 0.000 description 57
- 239000003245 coal Substances 0.000 description 17
- 230000000694 effects Effects 0.000 description 7
- 239000004568 cement Substances 0.000 description 6
- 239000004927 clay Substances 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 241000256135 Chironomus thummi Species 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of hole sealing device, including pipe plug, hollow floral tube, expansion assembly I, pump drainage concentric tube, blast component, expansion assembly II and Grouting Pipe, the releasing pipe being sequentially connected；Pump drainage concentric tube is respectively mounted between expansion assembly I and explosion component, explosion component and expansion assembly II, expansion assembly II and releasing pipe, to be concentric inside and outside two-tube, connect to form isolation cavity configuration by dividing plate between inner and outer pipes, pump drainage concentric tube inner tube connection Grouting Pipe；Expansion assembly I, expansion assembly II connect check valve by being constituted positioned at middle pump drainage concentric tube and the drainage cloth being wrapped in outside it in the inner tube of pump drainage concentric tube；Explosive valve of the component by pump drainage concentric tube and in pump drainage concentric tube inner tube that explode is constituted.The hole sealing device of simple in construction, safe and convenient to use, extraction and slip casting integration of the invention, while providing the application process of the hole sealing device, solves the problem of sealing effectiveness present in existing sealing of hole process is undesirable.
Description
Technical field
The present invention relates to a kind of hole sealing device, it is mainly used in the plugging equipment of mine down-hole gas control.
Background technology
Gas bearing capacity is also increased therewith in the deepening year by year of coal mining, coal seam, highly gassy mine, coal and gas prominent ore deposit
The increase of well ratio.Gas has turned into current so that the serious restraining factors of coal production from now on, are the main bottles of coal development
One of neck.This, which is met, in hard-pumped mining coal seam requires that difficulty is very big, even in coal and gas outburst mine, one
A little ore deposits have no alternative but be forced to close for this, and Gonna breakthrough coal mine gas yoke solves extraction difficult most important to current coal industry.Ore deposit
Well gas not only has safely huge threat to coal production, also there is very strong negative effect to environment.Gas it is main
Composition is exactly methane, and available data shows, destruction of the methane to ozone layer is as many as 16 times of carbon dioxide, produced greenhouse
Effect is then 21 times of carbon dioxide.But it again be cleaning the high heating value energy, due in existing coal production to underground watt
Defect on this treatment technology so that substantial amounts of coal-bed gas is unable to high concentration discharge, it is difficult to reaches the requirement gone after profits and advoided disadvantages, makes
Fire damp evil show fully, profit it is hard to find.
The key of gas pumping is sealing of hole, the extraction of current coal-bed gas be after releasing pipe is installed to drilling, then
Blocked using organic material or inorganic material, including including the artificial sealing of hole of clay, foaming polymeric materials sealing of hole, cement mortar fluid-tight
Hole.Clay sealing of hole：Yellow mud or cement are used around releasing pipe, material requirements of the clay method of pore sealing to sealing of hole be not high, but right
The technological requirement of sealing of hole is but very high.It is limited to the soft durometer of drillable length and clay, it is very difficult to by the closed airtight of envelope that drill,
It is unreal that the carelessness of slightly one link can result in its bore closed.Clay method for sealing sealed borehole length is shorter, and yellow mud meets water
Soften, density is bad, easy gas leakage.Artificial sealing of hole is rolled into a ball using yellow mud, cement, borehole sealing quality is poor, activity duration length, labor
Fatigue resistance is big.Foaming polymeric materials sealing of hole：Foaming polymeric materials polyurethane sealing of hole is used around releasing pipe, due to polymerization
Foaming materials multiple is high, light weight, simple with technique, sealed reliable, is used widely the features such as sealing of hole is rapid.But
Current chemical polyurethane hole sealing technology mainly uses free-hand sealing of hole, and sealed borehole length only has 3~5 m, it is impossible to effectively closure drilling
Gas pumping loosens fissure zone, and gas extraction concentration is not high, and foaming polymeric materials sealing of hole is in coal seam crushed zone especially at soft point
There is collapse hole and gas leakage serious phenomenon during layer sealing of hole, and its sealing material cost is high, operation requires high.While organic chemistry sealing of hole
Material reaction acutely have generation high temperature, there is strong smell to generate, reaction speed is too fast, and the presetting period is non-adjustable, and sealing of hole is long
Degree is whard to control.Cement grout sealing of hole：Around releasing pipe with cement grout method of pore sealing be at aperture it is good and sound only sizing device
Afterwards, cement grout is pressed into grouting pump and drilled, can be with the longer drilling of sealing of hole sections.But cement material reaction speed is slow, coagulate
Gu rear condensate rate is big and dry and cracked, easily shrink, effective sealing of hole sealed borehole length is undesirable, does not realize sealing of hole with pressure.It is only applicable to
Rising borehole, and it is lower to drilling, it is unreal to concordant hole and low-angle borehole sealing, the sealed borehole length that wide-angle drills is not reached
Preferably require, it is impossible to the closed requirement of sealing of hole.
It can be seen that the problem of existing hole sealing device and its application process all have certain is, it is necessary to further improve.
The content of the invention
It is an object of the invention to solve problem present in current techniques there is provided one kind it is simple in construction, using secure side
Just, the hole sealing device of extraction and slip casting integration, while the application process of the hole sealing device is provided, during the existing sealing of hole of solution
The problem of sealing effectiveness of presence is undesirable.
To reach above-mentioned purpose, the technology used in the present invention means are：A kind of hole sealing device, including the pipe being sequentially connected
Stifled, hollow floral tube, expansion assembly I, pump drainage concentric tube, blast component, expansion assembly II and Grouting Pipe, releasing pipe；It is described to take out
Arrange concentric tube set three sections, be respectively mounted with expansion assembly I and explosion component, between explosion component and expansion assembly II, and
Between expansion assembly II and releasing pipe；The pump drainage concentric tube is concentric inside and outside two-tube, is connected between inner and outer pipes by dividing plate
Connect to form isolation cavity configuration, pump drainage concentric tube inner tube connection Grouting Pipe；The expansion assembly I, expansion assembly II are by positioned at centre
Pump drainage concentric tube and be wrapped in outside it drainage cloth composition, connect check valve in the inner tube of pump drainage concentric tube；The blast
Explosive valve of the component by pump drainage concentric tube and in pump drainage concentric tube inner tube is constituted.
Further, the expansion assembly I is side drainage cloth, the non-permeable cloth structure in side, and be set to point to drainage side
Mark.
Further, the application method of the hole sealing device is：
The first, hole packer is installed：Pipe plug is arranged on to one of hollow floral tube, the other end connection expansion of hollow floral tube first
Component I one end, need to be installed according to the label orientation on expansion assembly I, one section of pump drainage concentric tube then be connected, sealing of hole
Device plug one end is put into drilling, exposes installation explosion component on the pump drainage concentric tube of aperture one end, then successively other
Pump drainage concentric tube, explosion component, expansion assembly II are installed together, it is ensured that the distance between expansion assembly II and expansion assembly I
Meet the sealed borehole length of design, after overall feeding drilling, 15~20mm pump drainage concentric tube is reserved in aperture, then casting head is installed
Onto the inner tube of pump drainage concentric tube, it will be smeared when connecting each joint with glue, to ensure that the intensity of connection is reliable；
2nd, slip casting：The air inlet pipeline and pulp pipeline on grouting pump are connected, to examine equipment and pipeline to run before slip casting
It is whether normal, then the pulp-absorbing pipe of grouting pump is put into the container containing injecting paste material, intake valve is opened to the one of grout outlet
End is closed when having slurries outflow, and grout outlet is connected on casting head, and intake valve slip casting is opened again, and starting the slip casting stage will
At the uniform velocity slip casting；Pump pressure can be increased after observation expansion assembly II slip castings are expanded, simultaneously water is bright for outflow clear water in aperture hole to be drilled
It is aobvious to become hour, the injection speed of grouting pump it is from fast to slow again by accelerating slowly when, the speed for improving slip casting turns pump pressure down, finally treats
Midge speed is substantially slack-off, the phenomenon that builds the pressure occurs, and pressure gauge shows that pressure reaches more than 1.0MPa, closes pump and stops slip casting, to even
Grouting Pipe and casting head can be separated after the pipeline pressure release connect；
3rd, pump arrangement is washed：The cleaning of grouting pump is timely carried out after the completion of slip casting, it is ensured that next time normal makes
With.
The beneficial effects of the present invention are：Releasing pipe and filling system integration, without external hole packer, extraction assembly
It is installed to connection after drilling and starts the automatic hole sealing that grouting pump can be achieved entirely to drill, it is easy to operate, efficient；Slurries during slip casting
The rapid expanding coagulation system of rear and front end is full of by the slip casting passage in releasing pipe first, effective support is formed to drilling,
Make to form the region of high stress around sealing of hole sections drilling, it is to avoid persistently produce crack after sealing of hole, form leakage path；Rapid expanding, shape
Into sealing of hole chamber band pressure grouting, grouting pressure is not less than 1.0MPa, promotes slurries to be pressed into the wall of a borehole crack, is full of, blocks drilling week
The crack enclosed, reduces its permeability, plays a part of closure leakage path at initial stage；Sealed borehole length can be according to the requirement of drilling design
Change the length of pump drainage concentric tube to realize the regulation of sealed borehole length；Integrated design, saves substantial amounts of working time and artificial
Cost, the technique for realizing " a two stifled notes " sealing of hole with pressure, with preferable closely knit plugging effect；Sealing of hole strong adaptability：It can be achieved
The special drill sealing of holes such as coal seam, rock stratum, coal rock layer mixing drilling.
Brief description of the drawings
The present invention is further elaborated with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of pump drainage concentric tube of the present invention.
In figure：1st, pipe plug, 2, hollow floral tube, 3, expansion assembly I, 4, pump drainage concentric tube, 5, blast component, 6, expansion assembly
II, 7, Grouting Pipe, 8, releasing pipe, 9, inner tube, 10, check valve, 11, explosive valve.
Embodiment
A kind of hole sealing device as shown in Figure 1, 2, including be sequentially connected pipe plug 1, hollow floral tube 2, expansion assembly I3, take out
Arrange concentric tube 4, blast component 5, expansion assembly II6 and Grouting Pipe 7, releasing pipe 8；The pump drainage concentric tube 4 sets three sections, point
Between explosion component 5 and expansion assembly II6, and expansion assembly II6 and it An Zhuan not taken out with expansion assembly I3 and explosion component 5
Put between pipe 8；The pump drainage concentric tube 4 is concentric inside and outside two-tube, connects to form separate cavities by dividing plate between inner and outer pipes
Structure, the connection Grouting Pipe 7 of pump drainage concentric tube inner tube 9；The expansion assembly I3, expansion assembly II6 are same by the pump drainage positioned at centre
Heart pipe and the drainage cloth composition being wrapped in outside it, connect check valve 10 in the inner tube of pump drainage concentric tube；It is described blast component 5 by
Pump drainage concentric tube and the explosive valve 11 in pump drainage concentric tube inner tube are constituted.
The expansion assembly I3 be side drainage cloth, the non-permeable cloth structure in side, and be set to point to drainage side mark.
The application method of the hole sealing device is：
The first, hole packer is installed：Pipe plug is arranged on to one of hollow floral tube, the other end connection expansion of hollow floral tube first
Component I one end, need to be installed according to the label orientation on expansion assembly I, one section of pump drainage concentric tube then be connected, sealing of hole
Device plug one end is put into drilling, exposes installation explosion component on the pump drainage concentric tube of aperture one end, then successively other
Pump drainage concentric tube, explosion component, expansion assembly II are installed together, it is ensured that the distance between expansion assembly II and expansion assembly I
Meet the sealed borehole length of design, after overall feeding drilling, 15~20mm pump drainage concentric tube is reserved in aperture, then casting head is installed
Onto the inner tube of pump drainage concentric tube, it will be smeared when connecting each joint with glue, to ensure that the intensity of connection is reliable；
2nd, slip casting：The air inlet pipeline and pulp pipeline on grouting pump are connected, to examine equipment and pipeline to run before slip casting
It is whether normal, then the pulp-absorbing pipe of grouting pump is put into the container containing injecting paste material, intake valve is opened to the one of grout outlet
End is closed when having slurries outflow, and grout outlet is connected on casting head, and intake valve slip casting is opened again, and starting the slip casting stage will
At the uniform velocity slip casting；Pump pressure can be increased after observation expansion assembly II slip castings are expanded, simultaneously water is bright for outflow clear water in aperture hole to be drilled
It is aobvious to become hour, the injection speed of grouting pump it is from fast to slow again by accelerating slowly when, the speed for improving slip casting turns pump pressure down, finally treats
Midge speed is substantially slack-off, the phenomenon that builds the pressure occurs, and pressure gauge shows that pressure reaches more than 1.0MPa, closes pump and stops slip casting, to even
Grouting Pipe and casting head can be separated after the pipeline pressure release connect；
3rd, pump arrangement is washed：The cleaning of grouting pump is timely carried out after the completion of slip casting, it is ensured that next time normal makes
With.
The effect of pipe plug is to prevent that ickings and impurity are entered in pipe when the present apparatus from pushing in the borehole.The work of hollow floral tube
With the accumulation regions of gas when being gas drainage under suction, multiple spot contacts the passage of increase gas release with coal seam.Grouting pump in connection, note
Pulp material is first poured into expansion assembly by the intermediate inner tube road of pump drainage concentric tube, and expansion assembly is by the concentric pipe fitting of pump drainage
Combined with being rolled in their outside drainabilities very strong clothes.Certain pressure is reached when expansion assembly filters moisture expansion and heaved
Form two to block up, explosive valve on explosion component is opened under the effect of the pressure, slurries enter the intracavitary of closing, gas is from row
Gas port is discharged by exhaust passage, and slip casting completes slip casting after reaching 1MP pressure.Releasing pipe and filling system integration, without
Extraction assembly, is installed to connection after drilling and starts the automatic hole sealing that grouting pump can be achieved entirely to drill, behaviour by external hole packer
Make easy, efficient；Slurries are solidified by rapid expanding of the slip casting passage in releasing pipe full of rear and front end fill first during slip casting
Put, effective support is formed to drilling, make to form the region of high stress around sealing of hole sections drilling, it is to avoid persistently produce crack, shape after sealing of hole
Into leakage path；Rapid expanding, forms sealing of hole chamber band pressure grouting, and grouting pressure is not less than 1.0MPa, promotes slurries press-in drilling
Wall crack, is full of, blocks the crack of drilling surrounding, reduce its permeability, play a part of closure leakage path at initial stage；Sealing of hole is long
Degree can change the length of pump drainage concentric tube to realize the regulation of sealed borehole length according to the requirement of drilling design；Integrated design, section
Substantial amounts of working time and cost of labor are saved, the technique for realizing " a two stifled notes " sealing of hole with pressure, with preferably closely knit closure effect
Really；Sealing of hole strong adaptability：The special drill sealing of holes such as coal seam, rock stratum, coal rock layer mixing drilling can be achieved.
Application embodiment is only intended to illustrate technical characteristic disclosed in the present application, and those skilled in the art pass through simple
Carried out change is replaced, the scope that the application is protected is still fallen within.
Claims (1)
1. a kind of hole sealing device, it is characterised in that：Including the pipe plug being sequentially connected（1）, hollow floral tube（2）, expansion assembly I（3）、
Pump drainage concentric tube（4）, blast component（5）, expansion assembly II（6）And Grouting Pipe（7）, releasing pipe（8）；The pump drainage is concentric
Pipe（4）Three sections are set, is respectively mounted and expansion assembly I（3）With explosion component（5）, explosion component（5）With expansion assembly II
（6）Between, and expansion assembly II（6）And releasing pipe（8）Between；The pump drainage concentric tube（4）To be concentric inside and outside two-tube,
Connect to form isolation cavity configuration by dividing plate between inner and outer pipes, pump drainage concentric tube inner tube（9）Connect Grouting Pipe（7）；It is described swollen
Swollen component I（3）, expansion assembly II（6）By being constituted positioned at middle pump drainage concentric tube and the drainage cloth being wrapped in outside it, taking out
Check valve is connected in the inner tube for arranging concentric tube（10）；The blast component（5）By pump drainage concentric tube and installed in pump drainage concentric tube
Explosive valve in inner tube（11）Composition；The expansion assembly I（3）For side drainage cloth, the non-permeable cloth structure in side, and setting refer to
Marked to drainage side；
Its application method, is characterised by：
The first, hole packer is installed：Pipe plug is arranged on to one of hollow floral tube, the other end connection expansion assembly of hollow floral tube first
I one end, need to be installed according to the label orientation on expansion assembly I, one section of pump drainage concentric tube then be connected, sealing of hole
Device plug one end is put into drilling, exposes installation explosion component on the pump drainage concentric tube of aperture one end, then successively other
Pump drainage concentric tube, explosion component, expansion assembly II are installed together, it is ensured that between expansion assembly II and expansion assembly I
Distance meet the sealed borehole length of design, after overall feeding drilling, 15~20mm pump drainage concentric tube is reserved in aperture, then note
Slurry head is installed in the inner tube of pump drainage concentric tube, will be smeared when connecting each joint with glue, can with the intensity for ensureing connection
Lean on；
2nd, slip casting：Connect the air inlet pipeline and pulp pipeline on grouting pump, to be examined before slip casting equipment and pipeline run whether
Normally, then the pulp-absorbing pipe of grouting pump is put into the container containing injecting paste material, opening one end of intake valve to grout outlet has
Slurries are closed when flowing out, and grout outlet is connected on casting head, and intake valve slip casting is opened again, and starting the slip casting stage will be at the uniform velocity
Slip casting；Pump pressure can be increased after observation expansion assembly II slip castings are expanded, simultaneously water is obvious for outflow clear water in aperture hole to be drilled
Become hour, the injection speed of grouting pump it is from fast to slow again by accelerating slowly when, the speed for improving slip casting turns pump pressure down, finally waits to inhale
Starch speed substantially slack-off, the phenomenon that builds the pressure occur, pressure gauge shows that pressure reaches more than 1.0MPa, closes pump and stops slip casting, to even
Grouting Pipe and casting head can be separated after the pipeline pressure release connect；
3rd, pump arrangement is washed：The cleaning of grouting pump is timely carried out after the completion of slip casting, it is ensured that next time normal is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010812.9A CN104563958B (en) | 2015-01-09 | 2015-01-09 | A kind of hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510010812.9A CN104563958B (en) | 2015-01-09 | 2015-01-09 | A kind of hole sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104563958A CN104563958A (en) | 2015-04-29 |
| CN104563958B true CN104563958B (en) | 2017-08-01 |
Family
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|---|---|---|---|
| CN201510010812.9A Active CN104563958B (en) | 2015-01-09 | 2015-01-09 | A kind of hole sealing device |
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| CN113279729B (en) * | 2021-06-10 | 2022-03-22 | 中国矿业大学(北京) | Gas extraction method for leaking stoppage and concentration |
| CN113503139B (en) * | 2021-09-13 | 2021-12-07 | 中煤科工集团西安研究院有限公司 | In-hole time-delay self-sealing device and using method |
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| SU1435760A1 (en) * | 1986-12-24 | 1988-11-07 | Ленинградский горный институт им.Г.В.Плеханова | Arrangement for isolating hazard zones in wells |
| CN103195388A (en) * | 2013-03-28 | 2013-07-10 | 郑州煤炭工业(集团)有限责任公司 | Two-plugging hole packer and plugging grouting method |
| CN203081397U (en) * | 2013-05-14 | 2013-07-24 | 平顶山市安泰华矿用安全设备制造有限公司 | Grouting bag type hole packer |
| CN103334714A (en) * | 2013-07-23 | 2013-10-02 | 蔡长辉 | Bag device for quickly sealing holes |
| CN203476278U (en) * | 2013-09-12 | 2014-03-12 | 王玉奇 | Grouting type hole sealing and automatic water discharging device for underground drilling gas extraction |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
| CN103615212A (en) * | 2013-12-13 | 2014-03-05 | 新乡市嘉汇科技有限公司 | Two-blocking one-grouting grouting and hole sealing device |
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| CN104563958A (en) | 2015-04-29 |
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