CN207960570U - A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device - Google Patents
A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device Download PDFInfo
- Publication number
- CN207960570U CN207960570U CN201721792220.8U CN201721792220U CN207960570U CN 207960570 U CN207960570 U CN 207960570U CN 201721792220 U CN201721792220 U CN 201721792220U CN 207960570 U CN207960570 U CN 207960570U
- Authority
- CN
- China
- Prior art keywords
- casing
- drive screw
- gas pumping
- mash gas
- spherula
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 54
- 238000005086 pumping Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 title claims abstract description 20
- 238000012423 maintenance Methods 0.000 title claims abstract description 16
- 238000009434 installation Methods 0.000 title claims abstract description 14
- 239000003245 coal Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000004568 cement Substances 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model is related to a kind of mash gas pumping drilling Stability Maintenance material and installation aiding device, device includes filler orientation pusher, casing, porous disc, end fixing device, carrying spherula.The filler orientation pusher will carry spherula by drive screw and be transported to designated position from casing, and drive screw inner end end point is equipped with piston head, outer termination drilling machine, and the piston head is located inside pipe casing and is slidably connected with internal surface of sleeve pipe；The end fixing device is fixed on by fixing bolt on the coal wall at mash gas pumping drilling mouth, and center is set there are one threaded hole, and drive screw is passed through from the threaded hole；The carrying spherula is made by gangue and cement mixing, the utility model can be by changing the intensity for carrying spherular diameter and adjusting porosity and obturation in mash gas pumping drilling indirectly, supporting is carried out to mash gas pumping drilling, to prevent collapse hole, while ensureing the permeability of drilling.
Description
Technical field
The utility model belongs to the technical field for safeguarding the drilling of this coal-bed gas, proposes a kind of mash gas pumping drilling stability
Maintenance materials and installation aiding device.
Background technology
Stability Maintenance along coal bed gas extraction drilling is always the critical issue or even world-famous puzzle of gas preventing and control, with
The increase of mining depth, the coal seam that China's major part coal mine is exploited is weak seam, and with the increasing of mining depth
Add gas pressure increasing, this causes hole wall extremely unstable, and drilling is easily collapsed.At present gas drilling is commonly prevented in mine
The means of collapse hole lower screen technology mainly in drilling has the following disadvantages though this method is easy to operate：Usual screen casing with
The fitting of brill space is not close, and easy formation is leaked out；It is easy to cause screen casing crimp when collapse hole, blocks extraction channel；Work as screen casing
Hole it is less when, single hole extraction amount is small, and extraction rate is low；When the hole of screen casing is more, the processing of screen casing is more difficult and sieves
Pipe intensity is low；Screen casing is generally made of the higher pvc pipe of cost, usually reaches tens of rice even along coal bed gas extraction drillable length
Rice up to a hundred, gas pumping ethmoid canal,posterior is not recyclable, this causes the great wasting of resources.Therefore, with cost-effective reduction resource wave
Take, for the purpose of improving guard aperture effect and gas pumping rate, proposes that a kind of mash gas pumping drilling Stability Maintenance material is filled with laying
It sets.
Utility model content
For the of high cost of gas drilling stability is safeguarded at present, the problems such as extraction rate is low, the utility model provides a kind of
Mash gas pumping drilling Stability Maintenance material and installation aiding device, the utility model safeguard that drilling is steady using cheap carrying spherula
It is qualitative, by adjusting the gas permeability for carrying spherular diameter and indirectly increasing drilling, improve gas pumping efficiency.
To achieve the goals above, technical solution used by the utility model is：
A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device, including filler orientation pusher, set
Pipe, end fixing device, carrying spherula, porous disc, the filler orientation pusher will be held by drive screw
It carries spherula and is transported to designated position from casing, drive screw inner end end point is equipped with piston head, outer termination drilling machine, institute
Piston head is stated to be located inside pipe casing and be slidably connected with internal surface of sleeve pipe；The end fixing device is fixed on watt by fixing bolt
On coal wall at this extraction borehole mouth, center is set there are one threaded hole, and drive screw is passed through from the threaded hole.
The thin-walled iron pipe that the casing is often saved by 2 meters is made, and casing both ends are threaded, and can be combined with each other between casing,
Drilling filling, which finishes rear sleeve, all to recycle.
End fixing device in the filler orientation pusher is that irony disk is welded with casing, disk
Surrounding carries bolt hole, and disk can be fixed on coal wall by fixing bolt, and irony disk center carries threaded hole；The biography
The length of dynamic screw rod is 2 meters and often saves, and can be connected with each other by the screw thread of end between drive screw, the drive screw end of innermost end
Equipped with piston head, piston head is made by rubber material, piston head and drive screw axis connection.
The carrying spherula presses 5 by gangue, cement and water:5:3 ratio is mixed, and carries spherular intensity
Up to 0.5MP, carrying spherula can meet the strength demand for safeguarding borehole stability, and gangue and cement are cheap original
Material, after gas pumping, carrying spherula is without recycling.
A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device, function are realized according to the following steps：
A, predefine drilling wait for guard aperture region and determine each wait for the spherular quantity of carrying, root needed for guard aperture region
The spherular diameter of most suitable carrying is calculated according to the pore size and bearing strength demand of drilling and is packed into carrying spherula
Sphere mesh bag；
B, after drilling drilling, casing is sequentially connected and pushes to interior first of drilling and waits for guard aperture region, it will be required
Whole carrying spherulas be packed into casings；
C, end fixing device and casing connection are got well and is fixed on coal wall, the power that drilling machine provides is recycled to make connection
The carrying spherula that first is waited for needed for guard aperture region is released casing and pushes to the first Ge Dai guard apertures area by good drive screw
Domain；
D, end fixing device and a part of casing and drive screw are unloaded, the length of remaining casing and drive screw is made
Reach exactly to second and wait for guard aperture region, at this point, according to step c pairs second wait for that guard aperture region fills；
E, when according to appeal step by all after guard aperture region has filled, with porous disc by carry spherula consolidate
Fixed, sealing of hole prepares gas pumping.
Compared with prior art, the characteristics of the utility model and advantageous effect is：
(1) the utility model can be realized pinpoints guard aperture to drilling, this will greatly reduce the spherular usage amount of carrying, save
Cost；
(2) for the carrying spherula of the utility model by cheap gangue and cement, the carrying participated in coal is small
Sphere does not interfere with the quality of coal, therefore the carrying spherula in drilling is without recycling；
(3) casing of the utility model is thin-walled iron pipe, and guard aperture effect is good and casing can be recycled all.
Description of the drawings
Fig. 1 is a kind of schematic diagram of mash gas pumping drilling Stability Maintenance material and installation aiding device；
Fig. 2 is filler orientation pusher schematic diagram；
Fig. 3 is the final filling effect schematic diagram of the utility model；
Fig. 4 is the schematic diagram for carrying spherula in sphere mesh bag；
Fig. 5 is drive screw and piston head connection diagram；
Wherein：1：Drilling machine；2：End fixing device；3：Drive screw；4：Casing internal thread；5：Piston head；6：It carries small
Sphere；7：Casing；8：Connector (connection drilling machine and screw rod)；9：Fixing bolt；10：Sealing of hole sections；11：Porous disc；12：Drilling
Stability region；13：Sphere mesh bag
Specific implementation mode
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is further illustrated.
A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device, including casing 7, end fixing device 2, hold
Spherula 6, porous disc 11 are carried, the power that drive screw 3 is provided using drilling machine 1 is pushed to spherula 6 is carried from casing
Designated position, drive screw inner end end point are equipped with piston head 5, and the piston head is located inside pipe casing and and internal surface of sleeve pipe
It is slidably connected；The end fixing device 2 is fixed on by fixing bolt 10 on the coal wall at mash gas pumping drilling mouth, and center is set
There are one threaded hole, drive screw 3 is passed through from the threaded hole, and the thin-walled iron pipe that the casing 7 is often saved by 2 meters is made, casing
Both ends are threaded 4, can be combined with each other between casing, and drilling filling, which finishes rear sleeve, all to recycle.
End fixing device in the filler orientation pusher is that irony disk is welded with casing, disk
Thickness is 20cm, and surrounding carries bolt hole, disk can be fixed on coal wall by fixing bolt 10, irony disk center carries
Threaded hole；The length of the drive screw 3 is 2 meters and often saves, and can be connected with each other by the screw thread of end between drive screw, innermost end
Drive screw end be equipped with piston head 5, piston head 5 is made by rubber material, piston head and 3 axis connection of drive screw.
The carrying spherula 6 presses 5 by gangue, cement and water:5:3 ratio is mixed, and is carried spherular strong
Degree can meet the strength demand for safeguarding borehole stability up to 0.5MP, carrying spherula, and gangue and cement are cheap
Raw material, after gas pumping, carrying spherula participates in the carrying spherula in coal without recycling in exploitation process
It does not interfere with the quality of coal, carries between spherula, between carrying spherula and hole wall is point contact, this will be in drilling
There are larger hole, these holes can be considered that the macrocrack in coal body, the flowing of gas in the borehole are that macroscopic view flows, and hold
It is smaller to the inhibition of Gas Flow to carry spherula contact between hole wall.
A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device, with 80 meters of coal seam tendency concordant drillable length,
It is illustrated for bore diameter φ 75mm, steps are as follows：
(1) consider the gas permeability carried in spherular intensity and drilling, take spherular a diameter of 1 li of carrying
Rice；
(2) carrying spherula 6 is fitted into sphere mesh bag 13, the diameter of sphere mesh bag is consistent with casing, each sphere net
The length of bag is 0.5 meter, sphere mesh bag rough surface, and not will produce sliding when being contacted with hole wall will after drilling is crept into
The carrying spherula for being packed into sphere mesh bag is packed into casing 7, then casing is connected by screw thread 4 and pushes in drilling first
Wait for guard aperture region；
(3) filler shown in Fig. 2 orientation pusher is good with casing connection and be fixed on by fixing bolt 9
On coal wall, then drilling machine 1 is connected by connector 8 with drive screw 3, first segment drive screw with 5 axis connection of piston head such as
Shown in Fig. 5, piston head is not rotated with drive screw, and piston head is rubber material, flexible higher, and spherula is carried convenient for push,
Start drilling machine, carrying spherula is released casing and pushes to first by drive screw and waits for guard aperture region；
(4) close drilling machine, unload end fixing device 2 and a part of casing and screw rod, make in drilling remaining casing and
The length of screw rod reaches exactly to second and waits for guard aperture region, at this point, waiting for that guard aperture region is filled to second according to step (3)
It fills out；
(5) when according to appeal step by all after guard aperture region has filled, will fill spherula with porous disc 11
It is fixed；
(6) sealing of hole, prepare gas pumping, as shown in figure 3, in figure 12 be drill stability region, the region borehole wall
Stabilization is not easy collapse hole, therefore is not filled to the region, and 10 be sealing of hole sections in figure.
Claims (4)
1. a kind of mash gas pumping drilling Stability Maintenance material and installation aiding device, including filler orientation pusher, casing,
End fixing device, carrying spherula, sphere mesh bag, porous disc, it is characterised in that：The filler orients pusher
Spherula will be carried by drive screw and is transported to designated position from casing, and drive screw inner end end point is equipped with piston
Head, outer termination drilling machine, the piston head are located inside pipe casing and are slidably connected with internal surface of sleeve pipe；The end fixing device passes through
Fixing bolt is fixed on the coal wall at mash gas pumping drilling mouth, and center is set there are one threaded hole, and drive screw is from the threaded hole
It passes through；The carrying spherula is made by gangue and cement mixing.
2. a kind of mash gas pumping drilling Stability Maintenance material according to claim 1 and installation aiding device, it is characterised in that：
The thin-walled iron pipe that described sleeve pipe is often saved by 2 meters is made, and casing both ends are threaded, and are connected through a screw thread between casing.
3. a kind of mash gas pumping drilling Stability Maintenance material according to claim 1 and installation aiding device, it is characterised in that：
End fixing device in the filler orientation pusher is that irony disk is welded with casing, and disk surrounding carries
Disk can be fixed on coal wall by bolt hole by fixing bolt, and irony disk center carries threaded hole；The drive screw
Length is 2 meters and often saves, and can be connected with each other by the screw thread of end between drive screw, and the drive screw end of innermost end is equipped with piston
Head, piston head are made by rubber material, piston head and drive screw axis connection.
4. a kind of mash gas pumping drilling Stability Maintenance material according to claim 1 and installation aiding device, the carrying is small
Sphere presses 5 by gangue, cement and water:5:3 ratio is mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792220.8U CN207960570U (en) | 2017-12-20 | 2017-12-20 | A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721792220.8U CN207960570U (en) | 2017-12-20 | 2017-12-20 | A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207960570U true CN207960570U (en) | 2018-10-12 |
Family
ID=63729458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721792220.8U Expired - Fee Related CN207960570U (en) | 2017-12-20 | 2017-12-20 | A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207960570U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905763A (en) * | 2017-12-20 | 2018-04-13 | 中国矿业大学(北京) | A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device and method |
| CN111472834A (en) * | 2020-06-10 | 2020-07-31 | 徐州工程学院 | Method for preventing upward gas extraction borehole from collapsing at fixed point |
-
2017
- 2017-12-20 CN CN201721792220.8U patent/CN207960570U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905763A (en) * | 2017-12-20 | 2018-04-13 | 中国矿业大学(北京) | A kind of mash gas pumping drilling Stability Maintenance material and installation aiding device and method |
| CN111472834A (en) * | 2020-06-10 | 2020-07-31 | 徐州工程学院 | Method for preventing upward gas extraction borehole from collapsing at fixed point |
| CN111472834B (en) * | 2020-06-10 | 2021-11-09 | 徐州工程学院 | Method for preventing upward gas extraction borehole from collapsing at fixed point |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181012 Termination date: 20191220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |