CN113107419B - Colliery drilling hole sealing device - Google Patents
Colliery drilling hole sealing device Download PDFInfo
- Publication number
- CN113107419B CN113107419B CN202110496537.1A CN202110496537A CN113107419B CN 113107419 B CN113107419 B CN 113107419B CN 202110496537 A CN202110496537 A CN 202110496537A CN 113107419 B CN113107419 B CN 113107419B
- Authority
- CN
- China
- Prior art keywords
- hole sealing
- pipe
- grid
- grouting pipe
- net structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 109
- 238000005553 drilling Methods 0.000 title claims abstract description 16
- 239000002775 capsule Substances 0.000 claims abstract description 29
- 239000003245 coal Substances 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 37
- 230000000903 blocking effect Effects 0.000 claims description 28
- 238000003860 storage Methods 0.000 claims description 28
- 230000004888 barrier function Effects 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 2
- 238000007569 slipcasting Methods 0.000 description 11
- 239000011083 cement mortar Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 201000001883 cholelithiasis Diseases 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004881 precipitation hardening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a coal mine drilling and hole sealing device, which comprises a hole sealing pipe, wherein a hole sealing net structure is arranged on the outer side of the hole sealing pipe along the radial direction, the hole sealing net structure is arranged on the outer side surface of the hole sealing pipe through welding, a hole sealing capsule structure is arranged on the hole sealing net structure, and a first grouting pipe, a second grouting pipe and a third grouting pipe are arranged on the hole sealing net structure.
Description
Technical Field
The invention belongs to the technical field of coal mine safety devices, and particularly relates to a coal mine drilling and hole sealing device.
Background
At present, the conventional hole sealing method for the underground hydraulic fracturing hole of the coal mine generally uses cement mortar and polyurethane materials to seal the hole, wherein the cement mortar method is commonly used, and the common cement mortar has contractibility and poor sealing effect and brings difficulty to hydraulic fracturing work. In addition, the hole sealing is carried out by adopting a cement mortar plugging method, the cost is higher, a large amount of cement, electric power and water resources are consumed, the polyurethane plugging method is wide in adaptability and is generally used for plugging a gas drainage hole, and the polyurethane is a porous material after expansion, has certain elastoplasticity and low strength and is not suitable for plugging a high-pressure hydraulic fracturing hole.
Disclosure of Invention
The invention aims to solve the problems in the background art, and provides a coal mine drilling hole sealing device which can be used for blocking a grid to utilize broken stones generated by a drilling hole, increasing the friction force between the grid and the drilling hole by using a wire mesh, performing sectional grouting or simultaneous grouting by using a plurality of grouting pipes, increasing the contact area of two materials by using a spiral stock bin in a hole sealing capsule structure, and quickly and temporarily sealing the drilling hole.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the utility model provides a colliery drilling hole sealing device, includes the hole sealing pipe, and the hole sealing outside of tubes radially is equipped with the hole sealing net structure, the hole sealing net structure is established at hole sealing outside of tubes side through the welding, is equipped with hole sealing capsule structure on the hole sealing net structure, and hole sealing net structure is equipped with first slip casting pipe, second slip casting pipe and third slip casting pipe.
Preferably, the hole sealing net structure comprises a first blocking grid matched with the first grouting pipe, a second blocking grid matched with the second grouting pipe and a third blocking grid matched with the third grouting pipe, which are sequentially arranged from top to bottom; and iron wires fixedly connected with the first barrier grid, the second barrier grid and the third barrier grid are arranged on the outer side of the hole sealing net structure along the radial direction.
Preferably, the first grid that blocks include with reinforcing plate of wire netting welded, the reinforcing plate with be equipped with netted grid between the hole sealing pipe, the first grid inboard that blocks be equipped with hole sealing pipe fixed connection's fixed plate, be equipped with on the netted grid with reinforcing plate and fixed plate fixed connection's strengthening rib.
Preferably, the first barrier grids, the second barrier grids and the third barrier grids of the hole sealing net structure are gradually reduced in grid mesh size.
Preferably, a blocking piece connected with the first grouting pipe shaft is arranged at the pipe orifice of the first grouting pipe.
Preferably, the hole sealing net structure further comprises a hole sealing capsule structure fixedly connected with the third blocking grid, the hole sealing capsule structure comprises an elastic outer sleeve, an A material storage chamber is arranged in the hole sealing capsule structure, a spiral B material storage chamber is arranged in the A material storage chamber, and a fracture print is arranged on the spiral B material storage chamber.
The method has the advantages that the waste water of the mixed stone blocks formed after the rock stratum is crushed by the drill bit during drilling is screened and filtered through the barrier grids, the larger stone blocks are accumulated at the third barrier grid, the medium stone blocks are accumulated at the second barrier grid, then the plugging material is formed through dehydration and consolidation, the using amount of cement mortar is reduced, a spiral B material storage chamber in a hole sealing capsule structure is pressurized after the crushed stone is treated, the crushed stone is broken and cracked after pressurization, so that the material A and the material B are rapidly mixed, the plugging port is rapidly sealed, the cement slurry cannot leak in the grouting process, then the expanded cement mortar is injected into the hole sealing net structure through the second grouting pipe and the third grouting pipe, the separation blade of the first grouting pipe is jacked up through an air compressor, grouting is stopped when the first grouting pipe returns, the volume of the expanded cement is increased after settlement and consolidation, the pressure of the wire net and the drill hole is increased, and secondary grouting is performed through the first grouting pipe.
Drawings
FIG. 1 is a schematic of the present invention.
Fig. 2 is a schematic view of a first barrier grid of the present invention.
FIG. 3 is a schematic view of a first grouting pipe of the present invention.
FIG. 4 is a schematic view of the sealing capsule structure of the present invention.
FIG. 5 is a schematic view of a spiral material B reservoir of the present invention.
In the figure: the device comprises a hole sealing pipe 1, a hole sealing net structure 2, a first blocking grid 3, a reinforcing plate 301, reinforcing ribs 302, a mesh grid 303, a second blocking grid 4, a third blocking grid 5, a hole sealing capsule structure 6, an A material storage chamber 601, an elastic outer sleeve 602, a spiral B material storage chamber 603, a fracture seal 604, a third grouting pipe 7, a second grouting pipe 8, a first grouting pipe 9 and a blocking piece 901.
Detailed Description
For a better understanding of the present invention, reference will now be made to the following examples.
The following further describes embodiments of the present invention with reference to the drawings.
Example one
As shown in fig. 1-3, a coal mine drilling and sealing device comprises a hole sealing pipe 1, wherein a hole sealing net structure 2 is arranged outside the hole sealing pipe 1 along the radial direction, the hole sealing net structure 2 is arranged on the outer side surface of the hole sealing pipe 1 through welding, a hole sealing capsule structure 6 is arranged on the hole sealing net structure 2, and a first grouting pipe 9, a second grouting pipe 8 and a third grouting pipe 7 are arranged on the hole sealing net structure 2.
The hole sealing net structure 2 comprises a first blocking grid 3 matched with a first grouting pipe 9, a second blocking grid 4 matched with a second grouting pipe 8 and a third blocking grid 5 matched with a third grouting pipe 7 which are sequentially arranged from top to bottom; the outer side of the hole sealing net structure 2 is provided with an iron wire net which is fixedly connected with the first barrier grid 3, the second barrier grid 4 and the third barrier grid 5 along the radial direction.
The first barrier grid 3 comprises a reinforcing plate 301 welded with an iron wire mesh, a mesh grid 303 is arranged between the reinforcing plate 301 and the hole sealing pipe 1, a fixing plate fixedly connected with the hole sealing pipe 1 is arranged on the inner side of the first barrier grid 3, and reinforcing ribs 302 fixedly connected with the reinforcing plate 301 and the fixing plate are arranged on the mesh grid 303; the grid mesh sizes of the first barrier grids 3, the second barrier grids 4 and the third barrier grids 5 of the hole sealing net structure 2 are gradually reduced; the orifice of the first grouting pipe 9 is provided with a baffle 901 connected with the first grouting pipe 9 through a shaft.
The hole sealing mesh structure 2 further comprises a hole sealing capsule structure 6 fixedly connected with the third barrier grid 5, the hole sealing capsule structure 6 comprises an elastic outer sleeve 602, an A material storage chamber 601 is arranged in the hole sealing capsule structure 6, a spiral B material storage chamber 603 is arranged in the A material storage chamber 601, and a fracture print 604 is arranged on the spiral B material storage chamber 603. When the plugging device works, a hole opening operation is carried out on a rock stratum through the hole opening drill bit, the drill rod is taken out from a drilled hole, penetrates through the hole sealing pipe 1 and is replaced with a massage drill bit, the drill bit continuously cuts the rock stratum while the hole sealing net structure 2 continuously penetrates into the rock stratum, water is injected to reduce the temperature of the drill bit when the drill bit works, rock blocks are flushed out from the drilled hole by water flow, then the rock blocks are gathered, dehydrated, cemented and solidified through the first blocking grids 3, the second blocking grids 4 and the third blocking grids 5 of the hole sealing net structure 2, meanwhile, the blocking pieces 901 of the first grouting pipe 9, the second grouting pipe 8 and the third grouting pipe 7 are used for sealing the pipe openings of the first grouting pipe 9, the second grouting pipe 8 and the third grouting pipe 7 to prevent blockage, when the plugging operation is needed, the blocking pieces 901 of the first grouting pipe 9, the second grouting pipe 8 and the third grouting pipe 7 are jacked up through an air compressor, a pressurizing pipe 603 communicated with a pressurizing device is installed on a spiral material storage chamber B in the hole sealing capsule structure 6, the spiral B material storage chamber 603 is pressurized by communicating a pressurizing pipe and a pressurizing device, the spiral B material storage chamber 603 is made of plastic materials and is pre-pressed with a fracture print 604, the fracture print 604 is fractured under strong pressure, the spiral B material storage chamber 603 is fractured into multiple sections, the internal B material is rapidly mixed with the material A of the material A storage chamber 601 to react and rapidly expand, the expansion foam can be solidified and hardened within minutes, meanwhile, the elasticity coefficient of the elastic outer sleeve 602 can be selected according to actual conditions, when the elasticity coefficient of the elastic outer sleeve 602 is smaller, the fractured expansion foam of the elastic outer sleeve 602 rapidly plugs and solidifies the outlet of a drilled hole, the air tightness is good, when the elasticity coefficient of the elastic outer sleeve 602 is larger, the elastic outer sleeve 602 does not fracture and rapidly expands, the area between the plugging pipe and the drilled hole is rapidly filled, cement paste is prevented from flowing out during grouting, and then grouting the hole sealing net structure 2 through a second grouting pipe 8 and a third grouting pipe 7, stopping grouting when the first grouting pipe 9 returns grout, wherein the plane where the orifice of the first grouting pipe 9 is located is lower than the plane where the orifice of the hole sealing pipe 1 is located, so that the orifice of the hole sealing pipe 1 is blocked when grouting is avoided, and then secondary grouting is performed after the injected grout is precipitated and hardened.
Example two
Compared with the embodiment 1, as shown in fig. 1, 4 and 5, the hole sealing structure 2 further includes a hole sealing capsule structure 6 fixedly connected with a third barrier grid 5, the hole sealing capsule structure 6 includes an elastic outer sleeve 602, an a material storage chamber 601 is arranged in the hole sealing capsule structure 6, a spiral B material storage chamber 603 is arranged in the a material storage chamber 601, and a fracture print 604 is arranged on the spiral B material storage chamber 603.
The hole sealing capsule structure 6 comprises two hole sealing capsule structures which can be placed at the position of a second blocking grid 4, the third blocking grid 5 and the hole sealing capsule structure 6 at the position of the second blocking grid 4 expand during work, the air tightness is enhanced, then the hole sealing net structure 2 is grouted through a second grouting pipe 8 and a third grouting pipe 7, the injected cement mortar is expanded cement mortar, the volume is expanded after hardening, the pressure between an iron wire net and a drilled hole is increased, grouting is stopped when grout return occurs to a first grouting pipe 9, the plane where the pipe orifice of the first grouting pipe 9 is located is lower than the plane where the pipe orifice of the hole sealing pipe 1 is located, the pipe orifice of the hole sealing pipe 1 is prevented from being blocked during grouting, then secondary grouting is performed after the injected cement mortar is subjected to precipitation hardening, and the rest of the arrangement and operation are the same as those in embodiment 1.
EXAMPLE III
Compared with the embodiment 1, as shown in fig. 1, 4 and 5, the hole sealing structure 2 further includes a hole sealing capsule structure 6 fixedly connected with a third barrier grid 5, the hole sealing capsule structure 6 includes an elastic outer sleeve 602, an a material storage chamber 601 is arranged in the hole sealing capsule structure 6, a spiral B material storage chamber 603 is arranged in the a material storage chamber 601, and a fracture print 604 is arranged on the spiral B material storage chamber 603.
The hole sealing capsule structure 6 has two of them to place in first 3 lower extremes that block the grid, the hole sealing capsule structure 6 inflation of the third that stops grid 5 and first 3 department that block during operation, the reinforcing gas tightness then carries out the slip casting to hole sealing net structure 2 through second slip casting pipe 8 and third slip casting pipe 7, stop the slip casting when first slip casting pipe 9 appears returning the thick liquid, the plane at first slip casting pipe 9 mouth of pipe place is less than the plane at the mouth of pipe place of hole sealing pipe 1, with the shutoff of the mouth of pipe of hole sealing pipe 1 when having avoided the slip casting, then carry out the secondary slip casting after the grout deposit hardening of pouring into, all the other settings are the same with embodiment 1 with the operation.
It should be noted that, for those skilled in the art, many changes and modifications can be made without departing from the spirit and scope of the invention, and the invention is not to be considered limited to the embodiments illustrated in the above description.
Claims (5)
1. The utility model provides a colliery drilling hole sealing device, includes hole sealing pipe (1), and the hole sealing pipe (1) outside radially is equipped with hole sealing net structure (2), its characterized in that: the hole sealing net structure (2) is arranged on the outer side surface of the hole sealing pipe (1) in a welding mode, a hole sealing capsule structure (6) is arranged on the hole sealing net structure (2), and a first grouting pipe (9), a second grouting pipe (8) and a third grouting pipe (7) are arranged on the hole sealing net structure (2); the hole sealing net structure (2) comprises a first blocking grid (3) matched with the first grouting pipe (9), a second blocking grid (4) matched with the second grouting pipe (8) and a third blocking grid (5) matched with the third grouting pipe (7), which are sequentially arranged from top to bottom; and iron wires which are fixedly connected with the first barrier grids (3), the second barrier grids (4) and the third barrier grids (5) are arranged on the outer side of the hole sealing net structure (2) along the radial direction.
2. The coal mine drilling and sealing device according to claim 1, wherein: first block grid (3) include with reinforcing plate (301) of wire netting welded, reinforcing plate (301) with be equipped with netted grid (303) between hole sealing pipe (1), first block grid (3) inboard be equipped with hole sealing pipe (1) fixed connection's fixed plate, be equipped with on netted grid (303) with reinforcing plate (301) and fixed plate fixed connection's strengthening rib (302).
3. The coal mine drilling and sealing device according to claim 2, characterized in that: the first blocking grid (3), the second blocking grid (4) and the third blocking grid (5) of the hole sealing net structure (2) are gradually reduced in grid mesh size.
4. The coal mine drilling and sealing device according to claim 3, wherein: the pipe orifice of the first grouting pipe (9) is provided with a baffle (901) connected with the first grouting pipe (9) through a shaft.
5. The coal mine drilling and sealing device according to claim 4, wherein: the hole sealing net structure (2) further comprises a hole sealing capsule structure (6) fixedly connected with the third blocking grid (5), the hole sealing capsule structure (6) comprises an elastic outer sleeve (602), an A material storage chamber (601) is arranged in the hole sealing capsule structure (6), a spiral B material storage chamber (603) is arranged in the A material storage chamber (601), and a fracture print (604) is arranged on the spiral B material storage chamber (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110496537.1A CN113107419B (en) | 2021-05-07 | 2021-05-07 | Colliery drilling hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110496537.1A CN113107419B (en) | 2021-05-07 | 2021-05-07 | Colliery drilling hole sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113107419A CN113107419A (en) | 2021-07-13 |
| CN113107419B true CN113107419B (en) | 2022-12-13 |
Family
ID=76721204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110496537.1A Expired - Fee Related CN113107419B (en) | 2021-05-07 | 2021-05-07 | Colliery drilling hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113107419B (en) |
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| CN102889068A (en) * | 2012-11-02 | 2013-01-23 | 淮南矿业(集团)有限责任公司 | Hole sealing device and method |
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2021
- 2021-05-07 CN CN202110496537.1A patent/CN113107419B/en not_active Expired - Fee Related
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| CN113107419A (en) | 2021-07-13 |
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Granted publication date: 20221213 |