CN109538157A - A kind of coal mine gas pre-draining borehole flexibility sealing of hole system and method - Google Patents
A kind of coal mine gas pre-draining borehole flexibility sealing of hole system and method Download PDFInfo
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- CN109538157A CN109538157A CN201811212960.9A CN201811212960A CN109538157A CN 109538157 A CN109538157 A CN 109538157A CN 201811212960 A CN201811212960 A CN 201811212960A CN 109538157 A CN109538157 A CN 109538157A
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- 238000007789 sealing Methods 0.000 title claims abstract description 97
- 239000003245 coal Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000007569 slipcasting Methods 0.000 claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000005553 drilling Methods 0.000 claims abstract description 23
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- 238000011010 flushing procedure Methods 0.000 claims abstract description 4
- 210000004911 serous fluid Anatomy 0.000 claims description 36
- 239000002002 slurry Substances 0.000 claims description 26
- 238000000605 extraction Methods 0.000 claims description 20
- 238000003860 storage Methods 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 5
- 239000002775 capsule Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 241001074085 Scophthalmus aquosus Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 239000000463 material Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 5
- 238000005065 mining Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010000060 Abdominal distension Diseases 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 208000024330 bloating Diseases 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001246 colloidal dispersion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 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
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- 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
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- 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)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of coal mine gas pre-draining borehole flexibility sealing of hole system and methods, its system includes sealing of hole mechanism, gas drainage mechanism and slip casting mechanism, sealing of hole mechanism includes drainage tube arranged side by side, Grouting Pipe and two forcing pipes, gas pre-drainage borehole space is using one end of gas drainage as inner end, the other end is outer end, preceding air bag is successively arranged in gas pre-drainage borehole space from outside to inside, center sleeve and rear gasbag, center sleeve is made of symmetrically arranged upper air bag and lower gasbag one on the other, drainage tube passes through preceding air bag and rear gasbag, and it is clipped between air bag and lower gasbag, one sequentially passes through preceding air bag and upper air bag from outside to inside and penetrates rear gasbag in two forcing pipes；Another in two forcing pipes sequentially passes through preceding air bag and lower gasbag from outside to inside and penetrates rear gasbag；Grouting Pipe passes through preceding air bag, and is clipped between air bag and lower gasbag, and method includes: drilling, hole flushing, injection hole sealing, gas drainage.The present invention can effectively improve sealing of hole effect.
Description
Technical field
The invention belongs to coal mine gas drainage technical fields, and in particular to a kind of coal mine gas pre-draining borehole flexibility sealing of hole system
System and method.
Background technique
Coal accounts for 70% or so in non-renewable energy production and consumption structure as the most important energy in China always.But
Since condition of coal seam occurrence is complicated and changeable, Gas-bearing Coal Seams are more, and coal mine gas reserves are big, thus China coal industry for a long time by
The threat of various natural calamities drastically influences the safety in production and sustainable development of mine.Gas Disaster is coal mining
One of the disaster of most serious in the process.According to statistics in 2006, the mine at the 609 of 100 state-owned emphasis mining listed corporations
In well, highly gassy mine accounts for 26.8%, and coal and gas outburst mine accounts for 17.6%, and low gaseous mine accounts for 55.6%.With exploitation
Depth is continuously increased, and gas emission continues to increase, and coal and gas prominent danger is also constantly increasing, highly gassy mine
Quantity is also increasing.
Currently, the essence method of domestic prevention and treatment coal mine gas disaster is to carry out gas drainage.It is opened from the 1950s
Begin, China is just promoted gas drainage as the important measures for administering coal mine gas disaster in highly gassy mine." safety of coal mines rule
Journey " detailed regulation also has been made to coal mine gas drainage in the form of regulation.To ensure the safe and efficient progress of gas drainage, gas
The key for being effectively sealed to gas drainage of extraction borehole.
In the 1980s, Zhou Shining academician proposes active manometric method, the basic principle is that " sealing liquid, fluid-tight
Gas ", i.e., using liquid as sealing of hole substance, to solve the problems, such as solid matter can not tight closure drilling surrounding crack, and root
The pressure of sealing fluid is enabled to be slightly above the pressure of gas always in entire seal process according to the principle that fluid permeability depends on pressure difference
Power, to prevent the leakage of gas.In order to keep the pressure of sealing fluid and effectively prevent sealing section collapse hole, need in sealing fluid liquid
Block and solidify hole wall with high strength cement sill at the both ends of section, and the flexible weak intensity material of sealing fluid
Material, material is thus formed block liquid with solid, block the sealing system of gas with liquid.
But it is often used mining cement grout injection hole sealing at present, including in other injection hole sealing modes, work as grout cures
The newborn crack to develop out during extraction can not be just sealed, be blocked using solidification and mean that hole sealing device will be unable to
It recycles, sealing material and a large amount of pipelines are all retained in hole, and a large amount of hole sealing devices belong to disposable, material consumption substantially
It is huge.For coal mine, this operation of single gas pre-drainage needs to put into a large amount of manpower and material resources every year.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of novel design
Rationally, structure is simple, realizes a kind of coal mine gas pre-draining borehole flexibility sealing of hole system that is convenient, can be realized preferable sealing of hole effect
System.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of coal mine gas pre-draining borehole flexibility envelope
Hole system, it is characterised in that: including sealing of hole mechanism, gas drainage mechanism and slip casting mechanism, the sealing of hole mechanism includes setting side by side
Drainage tube, Grouting Pipe and two forcing pipes in gas pre-drainage borehole space are set, the gas pre-drainage borehole space is with gas
One end of extraction be inner end, the other end is outer end, be disposed with from outside to inside in the gas pre-drainage borehole space preceding air bag,
Center sleeve and rear gasbag, the center sleeve are made of symmetrically arranged upper air bag and lower gasbag one on the other, the extraction
Pipe is across preceding air bag and rear gasbag, and between the upper air bag and lower gasbag of the air bag that is clipped in the middle, in two forcing pipes wherein
One sequentially passes through preceding air bag from outside to inside and constitutes the upper air bag of center sleeve and penetrate rear gasbag；In two forcing pipes
Other one sequentially pass through from outside to inside before air bag and constitute center sleeve lower gasbag and penetrate rear gasbag；The upper air bag
On be provided with it is multiple first buckle, it is multiple it is described first buckle by upper air bag be fixedly connected on drainage tube, Grouting Pipe and pass through it is upper
On the forcing pipe of air bag, and upper air bag is divided into multiple sub- air bags；It is provided on the lower gasbag and fixed upper air bag
Lower gasbag is fixedly connected on drainage tube, slip casting by identical multiple second buckles of the first snapped-in position, multiple second buckles
It manages and is divided into multiple lower sub- air bags on the forcing pipe of lower gasbag, and by lower gasbag；Across a forcing pipe of upper air bag
The upper part in preceding air bag, upper air bag in multiple sub- air bags and rear gasbag is provided with stomata, across the one of lower gasbag
Part on root forcing pipe in multiple lower sub- air bags and rear gasbag in preceding air bag, lower gasbag is provided with stomata, the gas
Gas valve is connected on hole；The Grouting Pipe passes through preceding air bag, and between the upper air bag and lower gasbag of the air bag that is clipped in the middle, position
In Grouting Pipe between preceding air bag and center sleeve, between rear gasbag and center sleeve between two neighboring sub- air bag
It is provided with grouting serous fluid outlet, is connected with slip casting valve in the grouting serous fluid outlet；
The preceding balloon ends are provided with the third buckle for air bag before sealing, and the third is buckled preceding air bag two
End is fixedly connected on drainage tube, Grouting Pipe and two forcing pipes；The rear gasbag is provided with the 4th close to center sleeve one end
Buckle, rear gasbag is fixedly connected on drainage tube and two forcing pipes by the 4th buckle close to center sleeve one end, described
Rear gasbag is provided with the 5th buckle far from center sleeve one end, and the 5th buckle fixes rear gasbag far from center sleeve one end
It is connected on drainage tube；
The gas drainage mechanism is connect with drainage tube, and the slip casting mechanism is connect with Grouting Pipe.
Above-mentioned a kind of coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the slip casting valve is unidirectional
Valve.
A kind of above-mentioned coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the drainage tube, Grouting Pipe and
Two forcing pipes are fixedly connected.
A kind of above-mentioned coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the drainage tube mash gas extraction
Gas end is provided with floral tube.
A kind of above-mentioned coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: gas drainage mechanism packet
The gas storage tank for including the gas delivery pipe connecting with drainage tube and being connect with gas delivery pipe, from even in the gas delivery pipe
The direction for connecing gas holding vessel to connection drainage tube is connected with gas drainage pump, gas drainage valve and gas pressure table in turn.
A kind of above-mentioned coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the slip casting mechanism include with
The grouting serous fluid delivery pipe of Grouting Pipe connection and the slurries storage tank being connect with grouting serous fluid delivery pipe, the grouting serous fluid conveying
Guan Shangcong connection slurries storage tank is connected with grouting pump, slip casting valve and grouting pressure table in turn to Grouting Pipe direction.
Above-mentioned a kind of coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the forcing pipe is pre- in gas
Draining borehole space outer end is connected with pressurizing device, and the pressurizing device includes air shooter and air pump, and the forcing pipe is gentle
The connection of body delivery pipe one end, the air shooter other end connect with air pump, on the air shooter from connect air pump to
Connection forcing pipe direction is connected with pressurization pipe valve and inflation gauge in turn.
Above-mentioned a kind of coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the upper sub- air bag and lower son
The diameter of air bag is respectively less than the radius of gas pre-drainage borehole space.
Above-mentioned a kind of coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: the upper sub- air bag, lower sub- gas
Capsule, preceding air bag and rear gasbag are made of inflatable pipe, and the wall thickness of the inflatable pipe of sub- air bag and lower sub- air bag, which is greater than, in composition is constituted
The wall thickness of the inflatable pipe of preceding air bag and rear gasbag.The invention also discloses a kind of steps simply, it is convenient to realize, can be improved sealing of hole
The method of effect, which is characterized in that method includes the following steps:
Step 1: drilling: using drilling machine in tunnel internal drilling, forming gas pre-drainage borehole space, and clear up gas pre-drainage
Drilling cuttings in borehole space；
Step 2: hole flushing: being rinsed at least 20min to gas pre-drainage borehole space using high pressure water flow, then use high pressure
Air goes out the water assembled in gas pre-drainage borehole space；
Step 3: injection hole sealing, detailed process are as follows:
Step 301, connection sealing of hole mechanism: the position of air bag, center sleeve and rear gasbag relative to drainage tube before adjusting, it will
Gas valve is connected on two forcing pipes, and slip casting valve is connected in Grouting Pipe, and preceding air bag is buckled by third and is fixed
It is connected to drainage tube, in Grouting Pipe and two forcing pipes, rear gasbag is connected close to center sleeve one end by the way that the 4th buckle is fixed
It connects on drainage tube and two forcing pipes, rear gasbag is fixedly connected on drainage tube by the 5th buckle far from center sleeve one end
On；Upper air bag is fixedly connected on drainage tube, Grouting Pipe and on the forcing pipe of upper air bag by multiple first buckles, and will
Upper air bag is divided into multiple sub- air bags；Lower gasbag is fixedly connected on drainage tube, Grouting Pipe by multiple second buckles and is worn
It crosses on the forcing pipe of lower gasbag, and lower gasbag is divided into multiple lower sub- air bags；Drainage tube, Grouting Pipe and two forcing pipes are consolidated
Fixed connection；
The sealing of hole mechanism connected in step 301 is integrally protruded into gas pre-drainage borehole space, and adjusted by step 302
Sealing of hole mechanism to default injection hole sealing position；
Step 303 carries out injection hole sealing: firstly, being connect drainage tube with gas delivery pipe by quick coupling, by fast
Grouting Pipe is connect by quick coupling with grouting serous fluid delivery pipe, and is connect forcing pipe with air shooter by quick coupling；So
Slip casting valve and gas drainage valve are closed afterwards, open pressurization pipe valve, booster air pump, when inflation gauge registration reaches 0.3MPa
When, stop pressurization, closes pressurization pipe valve；Slip casting valve is opened, grouting pump is started, the grouting serous fluid in slurries storage tank passes through note
Slurry slurries delivery pipe enters Grouting Pipe, and when grouting pressure reaches 0.2MPa in Grouting Pipe, grouting serous fluid breaks through slip casting valve, note
It starches slurries and flows into slip casting region, when grouting pressure indicates that number reaches 0.3MPa, stop slip casting, close slip casting valve；It opens again
Pressurize pipe valve, booster air pump, when inflation gauge registration reaches 1MPa, stops pressurization, closes pressurization pipe valve；
Step 4: gas drainage: opening gas drainage valve, starting gas drainage pump, it is defeated that the gas of extraction passes through gas
Pipe is sent to be transported to gas storage tank, gas pressure table shows gas pressure at extraction.
Compared with the prior art, the present invention has the following advantages:
1, coal mine gas pre-draining borehole flexibility sealing of hole system of the invention, preceding air bag and rear gasbag used are flexible material
Material carries out plug using flexible material and solves the problems, such as that plug is single and poor sealing effect.
2, coal mine gas pre-draining borehole flexibility sealing of hole system of the invention, the center sleeve by being symmetrical arranged one on the other
Upper air bag and lower gasbag composition, multiple first buckles are provided on upper air bag, upper air bag is fixedly connected by multiple first buckles
In drainage tube, Grouting Pipe and on the forcing pipe of upper air bag, and upper air bag is divided into multiple sub- air bags；It is set on lower gasbag
It is equipped with and is buckled with fixed upper first snapped-in position of air bag identical multiple second, lower gasbag is fixedly connected by multiple second buckles
On drainage tube, Grouting Pipe and forcing pipe across lower gasbag, and lower gasbag is divided into multiple lower sub- air bags；It is formed by
On the one hand sub- air bag and lower sub- air bag solve the problems, such as that airbag form is single and cause sealing of hole effect undesirable, in addition occupy sealing of hole
The volume at position reduces the usage amount of grouting serous fluid during sealing of hole, reduces cost, protects environment.
3, coal mine gas pre-draining borehole flexibility sealing of hole system of the invention, can be according to different coal, different cranny development, no
Same drilling depth, the length of air bag, center sleeve and rear gasbag before adjusting, is suitable for a variety of sealing of hole operations.
4, coal mine gas pre-draining borehole flexibility sealing of hole system of the invention, preceding air bag, center sleeve and rear gasbag are soft
Property material the large range of deformation of drilling is subjected to using flexible material, new crack can be generated during extraction, air bag
Elastic potential energy slurries can be promoted to continue to permeate, fill new crack, keep good sealing effectiveness；If preceding air bag, centre
Pressure decline in air bag and rear gasbag can pressurize repeatedly for system in time.
5, the present invention in the specific implementation process, under the premise of guaranteeing effective sealing of hole effect, it is normal not change mining area substantially
Capsule-type blocks process, will not excessively increase the intensity and extra workload of construction.
6, the present invention is easy to implement in the limited underground in space, and after slip casting blocks, pressure is relatively mild in hole, substantially not
Deep around-the-hole stress can be caused significantly to disturb, borehole instability will not be led to because of sealing of hole.
To sum up the present invention is implemented simple, effectively improves sealing of hole effect, is suitable for most area mash gas extraction operations, is easy to push away
Extensively.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is gas drainage mechanism of the present invention, slip casting mechanism and sealing of hole mechanism connection relationship diagram.
Fig. 2 is sealing of hole mechanism sealing of hole position of the present invention schematic diagram.
Fig. 3 is sealing of hole mechanism of the present invention partial enlargement diagram.
Sectional view when Fig. 4 is center sleeve of the present invention non-slip casting pressurized state.
Sectional view when Fig. 5 is center sleeve slip casting pressurized state of the present invention.
Sectional view when Fig. 6 is rear gasbag pressurized state of the present invention.
Description of symbols:
1-preceding air bag；2-rear gasbags；3-drainage tubes；
4-forcing pipes；5-Grouting Pipes；6-slip casting valves；
7-gas valves；8-gas pre-drainage borehole spaces；9-slip casting regions；
10-slurry infiltration regions；11-center sleeves；11-1-goes up sub- air bag；
Sub- air bag under 11-2-；12-floral tubes；13-coal bodies；
14-gas drainages pump；15-gas delivery pipes；16-gas storage tanks；
17-gas pressure tables；18-gas drainage valves；19-pressurization pipe valves；
20-inflation gauges；21-air pumps；22-air shooters；
23-slip casting valves；24-grouting pumps；25-slurries storage tanks；
26-grouting pressure tables；27-grouting serous fluid delivery pipes；28-the first buckle；
29-the second buckle；30-thirds buckle；31-the four buckle；
32-the five buckle.
Specific embodiment
A kind of coal mine gas pre-draining borehole flexibility sealing of hole system of the invention, as shown in Figure 1, Figure 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6 institute
Show, including sealing of hole mechanism, gas drainage mechanism and slip casting mechanism, the sealing of hole mechanism includes being disposed side by side on gas pre-drainage drilling
Drainage tube 3, Grouting Pipe 5 and two forcing pipes 4 in space 8, the gas pre-drainage borehole space 8 are with one end of gas drainage
Inner end, the other end are outer end, air bag 1, center sleeve 11 before being disposed with from outside to inside in the gas pre-drainage borehole space 8
With rear gasbag 2, the center sleeve 11 is made of symmetrically arranged upper air bag and lower gasbag one on the other, and the drainage tube 3 is worn
Preceding air bag 1 and rear gasbag 2 are crossed, and between the upper air bag and lower gasbag of the air bag 11 that is clipped in the middle, in two forcing pipes 4 wherein
One sequentially passes through preceding air bag 1 from outside to inside and constitutes the upper air bag of center sleeve 11 and penetrate rear gasbag 2；Two pressurizations
Other one in pipe 4 sequentially passes through preceding air bag 1 from outside to inside and constitutes the lower gasbag of center sleeve 11 and penetrate rear gasbag 2；
Be provided on the upper air bag it is multiple first buckle 28, it is multiple it is described first buckle 28 by upper air bag be fixedly connected on drainage tube 3,
Grouting Pipe 5 and multiple sub- air bag 11-1 are divided on the forcing pipe 4 of upper air bag, and by upper air bag；On the lower gasbag
Be provided with multiple second buckles 29 identical with the first 28 positions of buckle of fixed upper air bag, multiple second buckles 29 will under
Air bag is fixedly connected on drainage tube 3, Grouting Pipe 5 and is divided into multiple lower sons on the forcing pipe 4 of lower gasbag, and by lower gasbag
Air bag 11-2；It is located at preceding air bag 1, multiple sub- air bag 11-1 and rear gas in upper air bag on a forcing pipe 4 of upper air bag
Part in capsule 2 is provided with stomata, and preceding air bag 1, multiple lower sons in lower gasbag are located on a forcing pipe 4 of lower gasbag
Part in air bag 11-2 and rear gasbag 2 is provided with stomata, and gas valve 7 is connected on the stomata；The Grouting Pipe 5 is worn
Cross preceding air bag 1, and between the upper air bag and lower gasbag of the air bag 11 that is clipped in the middle, between preceding air bag 1 and center sleeve 11, after
Grouting serous fluid is provided in Grouting Pipe 5 between air bag 2 and center sleeve 11 between two neighboring sub- air bag 11-1 to go out
Mouthful, slip casting valve 6 is connected in the grouting serous fluid outlet；
1 both ends of preceding air bag are provided with the third buckle 30 for air bag 1 before sealing, the third buckle 30 will before
1 both ends of air bag are fixedly connected on drainage tube 3, Grouting Pipe 5 and two forcing pipes 4；The rear gasbag 2 is close to center sleeve 11 1
End is provided with the 4th buckle 31, and rear gasbag 2 is fixedly connected on drainage tube 3 close to 11 one end of center sleeve by the 4th buckle 31
On two forcing pipes 4, the rear gasbag 2 is provided with the 5th buckle 32, the 5th buckle 32 far from 11 one end of center sleeve
Rear gasbag 2 is fixedly connected on drainage tube 3 far from 11 one end of center sleeve；The gas drainage mechanism is connect with drainage tube 3,
The slip casting mechanism is connect with Grouting Pipe 5；When it is implemented, can be according to the depth of drilling, air bag 1, center sleeve 11 before changing
With the length of rear gasbag 2, it is applicable to a variety of sealing of hole operations.
In the present embodiment, as shown in Figures 2 and 3, the slip casting valve 6 is check valve.
In the present embodiment, as shown in Figures 2 and 3, the drainage tube 3, Grouting Pipe 5 are fixedly connected with two forcing pipes 4.
In the present embodiment, as shown in Fig. 2, 3 mash gas extraction gas end of the drainage tube is provided with floral tube 12.
In the present embodiment, as shown in Figure 1, the gas drainage mechanism includes the gas delivery pipe 15 connecting with drainage tube 3
With the gas storage tank 16 being connect with gas delivery pipe 15, from connection gas holding vessel 16 to connection in the gas delivery pipe 15
The direction of drainage tube 3 is connected with gas drainage pump 14, gas drainage valve 18 and gas pressure table 17 in turn.
In the present embodiment, as shown in Figure 1, the slip casting mechanism includes the grouting serous fluid delivery pipe 27 connecting with Grouting Pipe 5
With the slurries storage tank 25 being connect with grouting serous fluid delivery pipe 27, from connection slurries storage tank in the grouting serous fluid delivery pipe 27
25 are connected with grouting pump 24, slip casting valve 23 and grouting pressure table 26 in turn to 5 direction of Grouting Pipe.
In the present embodiment, as shown in Figure 1, the forcing pipe 4 is connected with pressurization dress in 8 outer end of gas pre-drainage borehole space
It sets, the pressurizing device includes air shooter 22 and air pump 21, and the forcing pipe 4 is connected with 22 one end of air shooter, institute
It states 22 other end of air shooter to connect with air pump 21, from connection air pump 21 to connection forcing pipe 4 on the air shooter 22
Direction is connected with pressurization pipe valve 19 and inflation gauge 20 in turn.
In the present embodiment, as shown in figure 4, to be respectively less than gas pre- for the diameter of the upper sub- air bag 11-1 and lower sub- air bag 11-2
The radius in draining borehole space 8 can enter slip casting region 9 for grouting serous fluid and provide necessary condition.
In the present embodiment, the upper sub- air bag 11-1, lower sub- air bag 11-2, preceding air bag 1 and rear gasbag 2 are by inflatable pipe structure
At the wall thickness of the inflatable pipe of sub- air bag 11-1 and lower sub- air bag 11-2 is greater than the inflatable for constituting preceding air bag 1 and rear gasbag 2 in composition
The wall thickness of pipe；Under 0.3MPa pressure, the degrees of expansion of preceding air bag 1 and rear gasbag 2 is greater than the degrees of expansion of center sleeve 11, preceding
Air bag 1 and the first expansion plugging injection hole sealing section of rear gasbag 2 both ends, center sleeve 11 is in the full state but not swollen of inflating at this time
It is swollen；When pressure reaches 1MPa, center sleeve 11 is also at dilatancy state, squeezes slurries and enters slurry infiltration region 10.
In the present embodiment, as depicted in figs. 1 and 2, the method that the system carries out coal mine gas drainage flexibility sealing of hole includes
Following steps:
Step 1: drilling: using drilling machine in tunnel internal drilling, forming gas pre-drainage borehole space 8, and clear up gas pre-drainage
Drilling cuttings in borehole space 8；When it is implemented, ensuring to be formed relatively stable gas pre-drainage borehole space 8, it is ensured that without deforming
Big or collapsing phenomenon；
Step 2: hole flushing: being rinsed at least 20min to gas pre-drainage borehole space 8 using high pressure water flow, then use high pressure
Air goes out the water assembled in gas pre-drainage borehole space 8；When it is implemented, the drilling machine used is water drilling, high pressure water flow and height
Pressure air is provided by drilling machine, and the pressure of high pressure water flow is 8kPa~15kPa, and the pressure of pressure-air is 8kPa~15kPa；Watt
The cleaning in this pre-draining borehole space 8 is thorough, it is ensured that without drilling cuttings in gas pre-drainage borehole space 8, the air bag 1 before drilling cuttings rests on
When with 2 present position of rear gasbag, plug effect will affect, cause grouting serous fluid to overflow from injection hole sealing section, influence sealing effect.
Step 3: injection hole sealing, detailed process are as follows:
Step 301, connection sealing of hole mechanism: the position of air bag 1, center sleeve 11 and rear gasbag 2 relative to drainage tube 3 before adjusting
It sets, gas valve 7 is connected on two forcing pipes 4, slip casting valve 6 is connected in Grouting Pipe 5, preceding air bag 1 is passed through the
Three buckles 30 are fixedly connected on drainage tube 3, Grouting Pipe 5 and two forcing pipes 4, by rear gasbag 2 close to 11 one end of center sleeve
It is fixedly connected on drainage tube 3 and two forcing pipes 4 by the 4th buckle 31, rear gasbag 2 is led to far from 11 one end of center sleeve
The 5th buckle 32 is crossed to be fixedly connected on drainage tube 3；By upper air bag by it is multiple first buckle 28 be fixedly connected on drainage tube 3,
Grouting Pipe 5 and multiple sub- air bag 11-1 are divided on the forcing pipe 4 of upper air bag, and by upper air bag；Lower gasbag is passed through
Multiple second buckles 29 are fixedly connected on drainage tube 3, Grouting Pipe 5 and on the forcing pipes 4 of lower gasbag, and lower gasbag is divided
For multiple lower sub- air bag 11-2；Drainage tube 3, Grouting Pipe 5 are fixedly connected with two forcing pipes 4；When it is implemented, carrying out preceding gas
The seal operation of capsule 1, center sleeve 11 and rear gasbag 2, it is ensured that gas leak phenomenon will not occur during entire sealing of hole；It will buckle
It is fixedly connected with position to fix, prevents from loosening during entire sealing of hole；
The sealing of hole mechanism connected in step 301 is integrally protruded into gas pre-drainage borehole space 8, and adjusted by step 302
Sealing of hole mechanism to default injection hole sealing position；When it is implemented, to ensure before sealing of hole mechanism protrudes into gas pre-drainage borehole space 8
Slip casting valve 6 and gas valve 7 can be opened normally, avoid that the changing of the relative positions occurs when pressurization and slip casting；
Step 303 carries out injection hole sealing: firstly, being connect drainage tube 3 with gas delivery pipe 15 by quick coupling, leading to
It crosses quick coupling and connect Grouting Pipe 5 with grouting serous fluid delivery pipe 27, and pass through quick coupling for forcing pipe 4 and air shooter
22 connections；It is then shut off slip casting valve 23 and gas drainage valve 18, opens pressurization pipe valve 19, booster air pump 21, when inflation is pressed
When 20 registration of power table reaches 0.3MPa, stop pressurization, closes pressurization pipe valve 19；Slip casting valve 23 is opened, grouting pump 24, slurry are started
Grouting serous fluid in liquid storage tank 25 enters Grouting Pipe 5 by grouting serous fluid delivery pipe 27, when grouting pressure reaches in Grouting Pipe 5
When 0.2MPa, grouting serous fluid breaks through slip casting valve 6, and grouting serous fluid flows into slip casting region 9, when 26 registration of grouting pressure table reaches
When 0.3MPa, stop slip casting, closes slip casting valve 23；Pressurization pipe valve 19, booster air pump 21, when inflation gauge 20 shows are opened again
When number reaches 1MPa, stop pressurization, closes pressurization pipe valve 19；When it is implemented, before pressurization, it is ensured that preceding air bag 1, center sleeve 11
It can be opened without breakage and normally with rear gasbag 2, pressurization pipe valve 19 is in the open state, gas drainage valve 18 and slip casting valve
23 are in close state, it is ensured that entire pipeline does not have gas leak phenomenon；Pre-assigned enough slip casting is provided in slurries storage tank 25
Slurries guarantee that grouting serous fluid keeps uniform before slip casting；Since center sleeve 11 is thicker than preceding air bag 1 and rear gasbag 2, for the first time
When being pressurized to 0.3MPa, preceding air bag 1 and rear gasbag 2 expand rapidly, block both ends, it is ensured that preceding air bag 1 and rear gasbag 2 and hole wall are tight
Closely connected conjunction guarantees sealing effect, and slurries are revealed when preventing slip casting, and center sleeve 11, which is in, at this time is full of but non-bloating state,
It is grouting serous fluid slot milling in slip casting region 9；When pressure reaches 0.3MPa, stop pressurization, starts slip casting, work as Grouting Pipe
When pressure reaches 0.2MPa in 5, grouting serous fluid breaks through slip casting valve 6 and flows into slip casting region 9, when pressure reaches in slip casting region 9
When 0.3MPa, stop slip casting, at this point, pressure and pressure phase in slip casting region 9 in preceding air bag 1, center sleeve 11 and rear gasbag 2
Deng；It is then turned on pressurization pipe valve 19 and air pump 21, stops pressurization when 20 pressure of inflation gauge reaches 1MPa, at this time center sleeve
11 are also at dilatancy state, and space is limited in hole, and extrusion pour slurry slurries enter slurry infiltration region 10, to gap region into
Row is effective to be blocked, and realizes preferable sealing effect, stores elastic potential in preceding air bag 1, center sleeve 11 and rear gasbag 2 at this time
Energy；Grouting serous fluid in slurries storage tank 25 uses flexible stronger Al (OH)3Colloid, the colloid is fire-retardant, stability is good,
Nontoxic, proportion is simple, low in cost, Al (OH)3Colloid is the colloidal dispersion with liquid property, be can enter in borehole fissure,
Expand diffusion zone, enhances leakproofness, be good sealing material.
Step 4: gas drainage: open gas drainage valve 18, starting gas drainage pump 14, the gas of extraction by watt
This delivery pipe 15 is transported to gas storage tank 16, and gas pressure table 17 shows gas pressure at extraction；During extraction, in hole
Gas bearing capacity is gradually reduced, and under the action of mine pressure, coal body 13 has new crack and formed, and crack is also gradually sudden and violent in hole
Dew, the elastic potential energy of preceding air bag 1, center sleeve 11 and rear gasbag 2 gradually discharges at this time, and volume expansion is slow by grouting serous fluid
Be pressed into the crack that is newly formed, when one section after reach new balance, realize active dynamic sealing；It is observed during extraction
The pressure that inflation gauge 20 is shown can be at any time to air bag in current air bag 1, center sleeve 11 and rear gasbag 2 when pressure reduction
Pressurization, realizes preferable sealing effect.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification to the above embodiments, change and equivalent structural changes, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (10)
1. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system, it is characterised in that: including sealing of hole mechanism, gas drainage mechanism and
Slip casting mechanism, the sealing of hole mechanism include the drainage tube (3) being disposed side by side in gas pre-drainage borehole space (8), Grouting Pipe (5)
With two forcing pipes (4), the gas pre-drainage borehole space (8) is using one end of gas drainage as inner end, and the other end is outer end, institute
It states in gas pre-drainage borehole space (8) and is disposed with preceding air bag (1), center sleeve (11) and rear gasbag (2), institute from outside to inside
It states center sleeve (11) to be made of symmetrically arranged upper air bag and lower gasbag one on the other, the drainage tube (3) passes through preceding air bag
(1) and rear gasbag (2), and between the upper air bag and lower gasbag of the air bag that is clipped in the middle (11), in two forcing pipes (4) wherein
One sequentially passes through preceding air bag (1) from outside to inside and constitutes the upper air bag of center sleeve (11) and penetrate rear gasbag (2)；Two institutes
State other one in forcing pipe (4) sequentially pass through from outside to inside preceding air bag (1) and constitute center sleeve (11) lower gasbag and
Penetrate rear gasbag (2)；Multiple first buckles (28) are provided on the upper air bag, multiple described first buckle (28) for upper air bag
It is fixedly connected on drainage tube (3), Grouting Pipe (5) and on the forcing pipe (4) of upper air bag, and upper air bag is divided on multiple
Sub- air bag (11-1)；Multiple second cards identical with the first buckle (28) position of fixed upper air bag are provided on the lower gasbag
It detains (29), lower gasbag is fixedly connected on drainage tube (3), Grouting Pipe (5) and passes through lower gasbag by multiple second buckles (29)
Forcing pipe (4) on, and lower gasbag is divided into multiple lower sub- air bags (11-2)；On a forcing pipe (4) of upper air bag
Part in preceding air bag (1), upper air bag in multiple sub- air bags (11-1) and rear gasbag (2) is provided with stomata, passes through
On a piece forcing pipe (4) of lower gasbag in multiple lower sub- air bags (11-2) and rear gasbag (2) in preceding air bag (1), lower gasbag
Part be provided with stomata, gas valve (7) are connected on the stomata；The Grouting Pipe (5) passes through preceding air bag (1), and
It is clipped in the middle between the upper air bag and lower gasbag of air bag (11), between preceding air bag (1) and center sleeve (11), rear gasbag
(2) slip casting slurry is provided in the Grouting Pipe (5) between center sleeve (11) between two neighboring sub- air bag (11-1)
Liquid outlet, the grouting serous fluid export and are connected with slip casting valve (6)；
Preceding air bag (1) both ends are provided with the buckle of the third for sealing preceding air bag (1) (30), and the third buckles (30)
Preceding air bag (1) both ends are fixedly connected on drainage tube (3), on Grouting Pipe (5) He Lianggen forcing pipe (4)；The rear gasbag (2) is leaned on
Nearly center sleeve (11) one end is provided with the 4th buckle (31), and the 4th buckle (31) is by rear gasbag (2) close to center sleeve
(11) one end is fixedly connected on drainage tube (3) He Lianggen forcing pipe (4), and the rear gasbag (2) is far from center sleeve (11) one
End is provided with the 5th buckle (32), and rear gasbag (2) are fixedly connected by the 5th buckle (32) far from center sleeve (11) one end
On drainage tube (3)；
The gas drainage mechanism is connect with drainage tube (3), and the slip casting mechanism is connect with Grouting Pipe (5).
2. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the slip casting
Valve (6) is check valve.
3. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the extraction
Pipe (3), Grouting Pipe (5) He Lianggen forcing pipe (4) are fixedly connected.
4. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the extraction
Pipe (3) mash gas extraction gas end is provided with floral tube (12).
5. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the gas
Extraction mechanism includes the gas delivery pipe (15) connecting with drainage tube (3) and the gas storage tank connecting with gas delivery pipe (15)
(16), it is connected in turn on the gas delivery pipe (15) from connection gas holding vessel (16) to the direction of connection drainage tube (3)
Gas drainage pumps (14), gas drainage valve (18) and gas pressure table (17).
6. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the slip casting
Mechanism includes that the grouting serous fluid delivery pipe (27) connecting with Grouting Pipe (5) and the slurries connecting with grouting serous fluid delivery pipe (27) are deposited
Storage tank (25) is sequentially connected on the grouting serous fluid delivery pipe (27) from connection slurries storage tank (25) to Grouting Pipe (5) direction
There are grouting pump (24), slip casting valve (23) and grouting pressure table (26).
7. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the pressurization
Pipe (4) is connected with pressurizing device in gas pre-drainage borehole space (8) outer end, the pressurizing device include air shooter (22) and
Air pump (21), the forcing pipe (4) connect with air shooter (22) one end, air shooter (22) other end and air pump
(21) it connects, is connected with pressurization in turn from connection air pump (21) to connection forcing pipe (4) direction on the air shooter (22)
Pipe valve (19) and inflation gauge (20).
8. a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in accordance with the claim 1, it is characterised in that: the upper son
The diameter of air bag (11-1) He Xiazi air bag (11-2) is respectively less than the radius of gas pre-drainage borehole space (8).
9. according to a kind of coal mine gas pre-draining borehole flexibility sealing of hole system described in claim 1 or 8, it is characterised in that: described
Upper sub- air bag (11-1), lower sub- air bag (11-2), preceding air bag (1) and rear gasbag (2) are made of inflatable pipe, sub- air bag in composition
The wall thickness of the inflatable pipe of (11-1) He Xiazi air bag (11-2) is greater than the wall for constituting the inflatable pipe of preceding air bag (1) and rear gasbag (2)
It is thick.
10. a kind of method for carrying out coal mine gas drainage flexibility sealing of hole using system described in claim 1, which is characterized in that should
Method the following steps are included:
Step 1: drilling: using drilling machine in tunnel internal drilling, being formed gas pre-drainage borehole space (8), and clear up gas pre-drainage brill
Drilling cuttings in hole space (8)；
Step 2: hole flushing: being rinsed at least 20min to gas pre-drainage borehole space (8) using high pressure water flow, then empty with high pressure
Gas goes out the water assembled in gas pre-drainage borehole space (8)；
Step 3: injection hole sealing, detailed process are as follows:
Step 301, connection sealing of hole mechanism: air bag (1), center sleeve (11) and rear gasbag (2) are relative to drainage tube (3) before adjusting
Position, gas valve (7) is connected on two forcing pipes (4), slip casting valve (6) is connected on Grouting Pipe (5), will before
Air bag (1) is fixedly connected on drainage tube (3) by third buckle (30), on Grouting Pipe (5) He Lianggen forcing pipe (4), will after gas
Capsule (2) is fixedly connected on drainage tube (3) He Lianggen forcing pipe (4) by the 4th buckle (31) close to center sleeve (11) one end
On, rear gasbag (2) are fixedly connected on drainage tube (3) far from center sleeve (11) one end by the 5th buckle (32)；It will be upper
Air bag is fixedly connected on drainage tube (3), Grouting Pipe (5) and across the forcing pipe (4) of upper air bag by multiple first buckles (28)
On, and upper air bag is divided into multiple sub- air bags (11-1)；Lower gasbag is fixedly connected on by multiple second buckles (29)
Drainage tube (3), Grouting Pipe (5) and multiple lower sub- air bag (11- are divided on the forcing pipe (4) of lower gasbag, and by lower gasbag
2)；Drainage tube (3), Grouting Pipe (5) He Lianggen forcing pipe (4) are fixedly connected；
The sealing of hole mechanism connected in step 301 is integrally protruded into gas pre-drainage borehole space (8), and adjusts envelope by step 302
Holes mechanism is to default injection hole sealing position；
Step 303 carries out injection hole sealing: firstly, being connect drainage tube (3) with gas delivery pipe (15) by quick coupling, leading to
It crosses quick coupling and connect Grouting Pipe (5) with grouting serous fluid delivery pipe (27), and pass through quick coupling for forcing pipe (4) and gas
Delivery pipe (22) connection；It is then shut off slip casting valve (23) and gas drainage valve (18), opens pressurization pipe valve (19), starts gas
It pumps (21), when inflation gauge (20) registration reaches 0.3MPa, stops pressurization, close pressurization pipe valve (19)；Open grouting valve
Door (23) starts grouting pump (24), and the grouting serous fluid in slurries storage tank (25) enters note by grouting serous fluid delivery pipe (27)
Slurry pipe (5), when Grouting Pipe (5) interior grouting pressure reaches 0.2MPa, grouting serous fluid breaks through slip casting valve (6), grouting serous fluid stream
Enter slip casting region (9), when grouting pressure table (26) registration reaches 0.3MPa, stops slip casting, close slip casting valve (23)；It beats again
Pressurization pipe valve (19) is opened, booster air pump (21) stops pressurization when inflation gauge (20) registration reaches 1MPa, closes pressurization
Pipe valve (19)；
Step 4: gas drainage: open gas drainage valve (18), starting gas drainage pump (14), the gas of extraction by watt
This delivery pipe (15) is transported to gas storage tank (16), and gas pressure table (17) shows gas pressure at extraction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811212960.9A CN109538157B (en) | 2018-10-18 | 2018-10-18 | Flexible hole sealing system and method for coal mine gas pre-extraction drill hole |
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|---|---|---|---|
| CN201811212960.9A CN109538157B (en) | 2018-10-18 | 2018-10-18 | Flexible hole sealing system and method for coal mine gas pre-extraction drill hole |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056383A (en) * | 2019-05-05 | 2019-07-26 | 天地科技股份有限公司 | A kind of hydraulic support flexible side protecting device |
| CN111636847A (en) * | 2020-05-14 | 2020-09-08 | 煤科集团沈阳研究院有限公司 | Directional leading-in device of colliery gas drainage drilling hole sealing agent |
| CN111794711A (en) * | 2020-08-03 | 2020-10-20 | 河南理工大学 | High-pressure circulating grouting and hole sealing device for gas extraction drill hole and using method thereof |
| CN113187537A (en) * | 2021-05-31 | 2021-07-30 | 陕西陕煤铜川矿业有限公司 | Gas extraction drilling hole sealing device and method |
| CN113565559A (en) * | 2021-08-31 | 2021-10-29 | 中煤科工集团重庆研究院有限公司 | Radial expansion active pressure-bearing grouting hole sealing process |
| CN115929251A (en) * | 2022-12-05 | 2023-04-07 | 中国矿业大学(北京) | Downhole recyclable dynamic liquid injection hole sealing device and construction method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474409A (en) * | 1982-09-09 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Interior | Method of enhancing the removal of methane gas and associated fluids from mine boreholes |
| SU1252482A1 (en) * | 1984-11-29 | 1986-08-23 | Kramarenko Aleksandr | Flexible seal for blast holes and 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 |
| CN103711515A (en) * | 2013-12-31 | 2014-04-09 | 河南能源化工集团研究院有限公司 | Reusable multistage gasbag mucus gas extraction drilling and hole sealing device |
| CN105041259A (en) * | 2015-06-25 | 2015-11-11 | 中国地质调查局水文地质环境地质调查中心 | Inflatable packer capable of holding double cables and method |
| CN105756599A (en) * | 2016-04-29 | 2016-07-13 | 史买林 | Coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device and method |
| CN205532465U (en) * | 2016-02-01 | 2016-08-31 | 河南理工大学 | Slip casting hole packer is pressed in split type bag area |
| CN207332822U (en) * | 2017-09-21 | 2018-05-08 | 广东金东建设工程公司 | A kind of relief well plugging device |
| CN207892585U (en) * | 2018-02-11 | 2018-09-21 | 山西三元福达煤业有限公司 | Three stifled two note hole sealing devices of coal mine gas extraction drill hole |
| CN108590742A (en) * | 2018-05-10 | 2018-09-28 | 西安科技大学 | Reducing reaming improves the mine gas extraction system and method for gas extraction concentration |
-
2018
- 2018-10-18 CN CN201811212960.9A patent/CN109538157B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4474409A (en) * | 1982-09-09 | 1984-10-02 | The United States Of America As Represented By The Secretary Of The Interior | Method of enhancing the removal of methane gas and associated fluids from mine boreholes |
| SU1252482A1 (en) * | 1984-11-29 | 1986-08-23 | Kramarenko Aleksandr | Flexible seal for blast holes and 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 |
| CN103711515A (en) * | 2013-12-31 | 2014-04-09 | 河南能源化工集团研究院有限公司 | Reusable multistage gasbag mucus gas extraction drilling and hole sealing device |
| CN105041259A (en) * | 2015-06-25 | 2015-11-11 | 中国地质调查局水文地质环境地质调查中心 | Inflatable packer capable of holding double cables and method |
| CN205532465U (en) * | 2016-02-01 | 2016-08-31 | 河南理工大学 | Slip casting hole packer is pressed in split type bag area |
| CN105756599A (en) * | 2016-04-29 | 2016-07-13 | 史买林 | Coal mine two-end gas plug and middle water seal layer penetrating drill hole sealing device and method |
| CN207332822U (en) * | 2017-09-21 | 2018-05-08 | 广东金东建设工程公司 | A kind of relief well plugging device |
| CN207892585U (en) * | 2018-02-11 | 2018-09-21 | 山西三元福达煤业有限公司 | Three stifled two note hole sealing devices of coal mine gas extraction drill hole |
| CN108590742A (en) * | 2018-05-10 | 2018-09-28 | 西安科技大学 | Reducing reaming improves the mine gas extraction system and method for gas extraction concentration |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056383A (en) * | 2019-05-05 | 2019-07-26 | 天地科技股份有限公司 | A kind of hydraulic support flexible side protecting device |
| CN111636847A (en) * | 2020-05-14 | 2020-09-08 | 煤科集团沈阳研究院有限公司 | Directional leading-in device of colliery gas drainage drilling hole sealing agent |
| CN111794711A (en) * | 2020-08-03 | 2020-10-20 | 河南理工大学 | High-pressure circulating grouting and hole sealing device for gas extraction drill hole and using method thereof |
| CN111794711B (en) * | 2020-08-03 | 2023-08-08 | 河南理工大学 | High-pressure circulating grouting hole sealing device for gas extraction drilling and use method thereof |
| CN113187537A (en) * | 2021-05-31 | 2021-07-30 | 陕西陕煤铜川矿业有限公司 | Gas extraction drilling hole sealing device and method |
| CN113565559A (en) * | 2021-08-31 | 2021-10-29 | 中煤科工集团重庆研究院有限公司 | Radial expansion active pressure-bearing grouting hole sealing process |
| CN113565559B (en) * | 2021-08-31 | 2024-04-02 | 中煤科工集团重庆研究院有限公司 | Radial expansion active pressure-bearing grouting hole sealing process |
| CN115929251A (en) * | 2022-12-05 | 2023-04-07 | 中国矿业大学(北京) | Downhole recyclable dynamic liquid injection hole sealing device and construction method |
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