CN108756804A - Mash gas pumping drilling hole sealing device - Google Patents
Mash gas pumping drilling hole sealing device Download PDFInfo
- Publication number
- CN108756804A CN108756804A CN201810668664.3A CN201810668664A CN108756804A CN 108756804 A CN108756804 A CN 108756804A CN 201810668664 A CN201810668664 A CN 201810668664A CN 108756804 A CN108756804 A CN 108756804A
- Authority
- CN
- China
- Prior art keywords
- string bag
- gas pumping
- pipe
- hole sealing
- fiber string
- 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.)
- Pending
Links
- 238000005086 pumping Methods 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 title claims abstract description 36
- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 239000000835 fiber Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000004891 communication Methods 0.000 claims abstract description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 6
- 239000003566 sealing material Substances 0.000 abstract description 6
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 239000011435 rock Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 36
- 238000000605 extraction Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 230000008961 swelling Effects 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
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses mash gas pumping drilling hole sealing device, the gas pumping technical field that is related in coal mining；Solves above-described sealing material insufficient pressure, sealing material cannot effectively penetrate into the gap of rock stratum, the problem of sealing effect difference；Including the gas pumping pipe being located in drilling, two sections of hole sealing bags being arranged at intervals on gas pumping pipe, stretch into Grouting Pipe between two sections of hole sealing bags, return pipe, including the fiber string bag being sleeved on gas pumping pipe, the both ends of the fiber string bag are equipped with front and back metal fixing sleeve, the fiber string bag is built-in water uptake expansion material, and the forcing pipe being in communication with the outside is provided in the fiber string bag；The moisture that water uptake expansion material in the fiber string bag of the present invention absorbs hole sealing agent can expand, meanwhile, under the action of pressurization, expanding material can be entered by the string bag in each crack of lithosphere, effectively be blocked to drilling.
Description
Technical field
The present invention relates to the gas pumping technical fields more particularly to a kind of mash gas pumping drilling sealing of hole dress in coal mining
It sets.
Background technology
During mine gas is coal production, the various pernicious gases based on methane gushed out out of coal, rock it is total
Claim, is the Major Natural factor for seriously threatening Safety of Coal Mine Production.Casualties caused by Gas Disaster and property loss are huge
Big, therefore, prevents Gas Disaster and be of great significance to the healthy and sustainable development of coal industry.Currently, gas pumping is mine
In well operations, the important means of gas is administered, during gas pumping, need to ensure the tight sealing that drills, and with longer
Seal length, to ensure the extracting result of gas.But China's coal-mine is mainly goaf gas drainage, this coal at this stage
Layer gas drainage under suction etc., the problem during gas pumping, the i.e. sealed borehole length of firedamp taking-out discharging drilling and sealing of hole problem do not have always
It is well solved.
The common mash gas pumping drilling hole sealing device in underground mainly has polyurethane sealing aperture apparatus and cement mortar sealing of hole at present
Device, but the insufficient pressure of the sealing material used due to both devices, sealing material cannot effectively be penetrated into rock stratum and split
In gap, with the progress of high negative pressure extraction, extraneous air can enter from crack passage in mash gas pumping drilling, to make drilling
Middle gas density reduces, the effective extraction time serious curtailment of gas, and generally after extraction work carries out some months, gas drilling is just
It is ineffective, so being extremely difficult to estimated extracting result.
Invention content
The present invention solves above-described sealing material pressure not by providing a kind of mash gas pumping drilling hole sealing device
Foot, sealing material cannot effectively penetrate into the gap of rock stratum, the problem of sealing effect difference.The present invention is by following technical solution
It realizes.
A kind of mash gas pumping drilling hole sealing device, including be located at the gas pumping pipe in drilling, be arranged at intervals on gas pumping
It adopts two on pipe sections of hole sealing bags, stretch into Grouting Pipe between two sections of hole sealing bags, return pipe, including be sleeved on gas pumping pipe
The both ends of the fiber string bag, the fiber string bag are equipped with front and back metal fixing sleeve, and the fiber string bag is built-in to have water suction swollen
Swollen material is provided with the forcing pipe being in communication with the outside in the fiber string bag.Forcing pipe one end is inserted into the fiber string bag, another
It holds and is connected with external force (forcing) pump, control valve is provided on the forcing pipe.
The fiber string bag can be nonwoven cloth material, or have the plant straw fibers of hole for itself, or
The degradable papery string bag with water penetration.Water uptake expansion material is water swelling gel or is water-absorbing resins or is friendship
Connection starch is flyash, clay.
The present invention is generated compared with the existing technology to be had the beneficial effect that.
The present invention is set with web pocket outside gas pumping pipe, and water uptake expansion material is housed in the string bag, when hole sealing agent by
It when Grouting Pipe is squeezed into outside gas pumping pipe, can also be stretched into net by the string bag, the water uptake expansion material in net absorbs hole sealing agent
Moisture can expand, meanwhile, under the action of pressurization, expanding material can be entered by the string bag in each crack of lithosphere, to drilling
Effectively blocked.
It is further improved, the water injection pipe being in communication with the outside is provided in the fiber string bag.Intermittent water filling can be carried out,
Ensure the dilation of water-absorbent material.
It is further improved, the mesh aperture of the fiber string bag is 1-5mm.After expanding material water suction, volume increases,
Under the action of internal pressure, since fibrous material has certain elasticity, the mesh between 1-5mm can be by the expanding material after water suction
Crimp, it is easier to fill hole of different shapes in rock.Hole it is too big or too it is small be all unfavorable for expanding material water suction
Deformation afterwards.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 is drilling, and 2 be gas pumping pipe, and 3 be hole sealing bag, and 4 be Grouting Pipe, and 5 be return pipe, and 6 be the fiber string bag,
7 be metal fixing sleeve, and 8 be forcing pipe, and 9 be force (forcing) pump, 10 valves in order to control.
Specific implementation mode
In order to make technical problems, technical solutions and advantages to be solved be more clearly understood, in conjunction with reality
Example and attached drawing are applied, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to
It explains the present invention, is not intended to limit the present invention.With reference to embodiment and the attached drawing technical solution that the present invention will be described in detail, but
Protection domain is not limited by this.
As shown in Figure 1, a kind of mash gas pumping drilling hole sealing device, including be located in drilling 1 gas pumping pipe 2, interval
Two on gas pumping pipe 2 sections of hole sealing bags 3 are set, stretch into Grouting Pipe 4 between two sections of hole sealing bags 3, return pipe 5, further include
The both ends of the fiber string bag 6 being sleeved on gas pumping pipe 2, the fiber string bag 6 are equipped with front and back metal fixing sleeve 7, web
Water uptake expansion material is housed in pocket 6, the forcing pipe 8 being in communication with the outside is provided in the fiber string bag 6.8 one end of forcing pipe is inserted into fine
It ties up in the string bag 6, the other end is connected with external force (forcing) pump 9, and control valve 10 is provided on forcing pipe 8.It also can be again in the fiber string bag 6
Place a water injection pipe being in communication with the outside.The mesh aperture of the fiber string bag 6 is 1-5mm.Here the fiber string bag 6 is with saturating
The aqueous degradable papery string bag, the water uptake expansion material in the string bag are water-absorbing resins.
Realize that the concrete operations of drilling and sealing are using above-mentioned apparatus：
It routinely constructs and drills 1, first the fiber string bag 6 equipped with water-absorbing resins is sleeved on gas pumping pipe 2, fiber
Diameter of the diameter of the string bag 6 slightly larger than drilling 1；The mesh aperture of the fiber string bag 6 is 1-5mm；It uses respectively at the both ends of the fiber string bag 6
Metal fixing sleeve 7 is fixed on gas pumping pipe 2, and the length of the front end exposing metal fixing sleeve 7 of gas pumping pipe 2 is
1m, 2 a diameter of 60mm of gas pumping pipe, return pipe 5 and 4 diameter of Grouting Pipe are 20mm；
Grouting Pipe 4 and return pipe 5 are each passed through the outside that 3 rear end of hole sealing bag is placed in the fiber string bag 6, the fiber string bag 6 will be housed
Gas pumping pipe 2 be sent into drilling 1 in, by Grouting Pipe 4 to drilling 1 in fill efficient expansion hole sealing agent, wait for that return pipe 5 returns
When slurry, stop injection, completes the sealing of hole to extraction borehole 1；Control valve 10 is opened, it is note in the fiber string bag 6 to start force (forcing) pump 9
Pressure, and simultaneously by water injection pipe water filling, after continuing 1-2min, stop pressure water injection, complete sealing of hole operation.
It is expanded after being absorbed water due to water uptake expansion material, under the effect of the pressure, water uptake expansion material is extruded the string bag, is squeezing
During pressure, water uptake expansion material is extruded into random shape, and the crack penetrated into around drilling 1 is fully combined with coal wall,
Hole sealing agent can also pass through the string bag, mutually fill；To realize effective sealing of hole to extraction borehole 1.
The above content is combine specific preferred embodiment to the further description done of the present invention, and it cannot be said that
The specific implementation mode of the present invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from the present invention, several simple deduction or replace can also be made, all shall be regarded as belonging to the present invention by being submitted
Claims determine scope of patent protection.
Claims (3)
1. mash gas pumping drilling hole sealing device, including it is located at drilling（1）Interior gas pumping pipe（2）, be arranged at intervals on gas pumping
Adopt pipe（2）On two sections of hole sealing bags（3）, stretch into two sections of hole sealing bags（3）Between Grouting Pipe（4）, return pipe（5）, feature exists
In, including it is sleeved on gas pumping pipe（2）On the fiber string bag（6）, the fiber string bag（6）Both ends be equipped with front and back gold
Belong to fixing sleeve（7）, the fiber string bag（6）It is interior that water uptake expansion material, the fiber string bag are housed（6）Inside be provided with outside
The forcing pipe of boundary's connection（8）.
2. mash gas pumping drilling hole sealing device according to claim 1, which is characterized in that the fiber string bag（6）It is interior
It is provided with the water injection pipe being in communication with the outside.
3. mash gas pumping drilling hole sealing device according to claim 1, which is characterized in that the fiber string bag（6）'s
Mesh aperture is 1-5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668664.3A CN108756804A (en) | 2018-06-26 | 2018-06-26 | Mash gas pumping drilling hole sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810668664.3A CN108756804A (en) | 2018-06-26 | 2018-06-26 | Mash gas pumping drilling hole sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108756804A true CN108756804A (en) | 2018-11-06 |
Family
ID=63977313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810668664.3A Pending CN108756804A (en) | 2018-06-26 | 2018-06-26 | Mash gas pumping drilling hole sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108756804A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260740A (en) * | 2019-06-12 | 2019-09-20 | 黑龙江科技大学 | A kind of mining borehole high-efficient homogeneous aggregate cladding sealing material |
| CN112112162A (en) * | 2020-07-29 | 2020-12-22 | 中国一冶集团有限公司 | Device for quickly sealing orifice of rear grouting pipe of cast-in-situ bored pile |
| CN112943191A (en) * | 2021-01-27 | 2021-06-11 | 西安科技大学 | Method for increasing permeability and displacing coal seam gas by filling dry ice in drill hole |
| CN113818921A (en) * | 2021-09-09 | 2021-12-21 | 华北科技学院(中国煤矿安全技术培训中心) | Device and method for shortening observation time of coal bed gas pressure measurement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155696A1 (en) * | 2011-05-13 | 2012-11-22 | 中国矿业大学 | High-pressure resistant drilled hole sealing method |
| CN103075128A (en) * | 2012-12-31 | 2013-05-01 | 中国矿业大学 | Method for sealing gas extraction drill holes |
| CN103075127A (en) * | 2012-12-27 | 2013-05-01 | 中国矿业大学 | Device and method for sealing drill hole by flexible filling material |
| CN106639975A (en) * | 2017-02-13 | 2017-05-10 | 中国矿业大学 | Dynamic water-replenishing hole sealing method through high-water resin |
| CN208534448U (en) * | 2018-06-26 | 2019-02-22 | 山西天地王坡煤业有限公司 | A kind of mash gas pumping drilling hole sealing device |
-
2018
- 2018-06-26 CN CN201810668664.3A patent/CN108756804A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155696A1 (en) * | 2011-05-13 | 2012-11-22 | 中国矿业大学 | High-pressure resistant drilled hole sealing method |
| CN103075127A (en) * | 2012-12-27 | 2013-05-01 | 中国矿业大学 | Device and method for sealing drill hole by flexible filling material |
| CN103075128A (en) * | 2012-12-31 | 2013-05-01 | 中国矿业大学 | Method for sealing gas extraction drill holes |
| CN106639975A (en) * | 2017-02-13 | 2017-05-10 | 中国矿业大学 | Dynamic water-replenishing hole sealing method through high-water resin |
| CN208534448U (en) * | 2018-06-26 | 2019-02-22 | 山西天地王坡煤业有限公司 | A kind of mash gas pumping drilling hole sealing device |
Non-Patent Citations (1)
| Title |
|---|
| 翁奇;: "LH-WFN-I型快速囊袋封孔装置顺层瓦斯抽采钻孔新技术及其应用", 科技创新与应用, no. 36 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260740A (en) * | 2019-06-12 | 2019-09-20 | 黑龙江科技大学 | A kind of mining borehole high-efficient homogeneous aggregate cladding sealing material |
| CN112112162A (en) * | 2020-07-29 | 2020-12-22 | 中国一冶集团有限公司 | Device for quickly sealing orifice of rear grouting pipe of cast-in-situ bored pile |
| CN112943191A (en) * | 2021-01-27 | 2021-06-11 | 西安科技大学 | Method for increasing permeability and displacing coal seam gas by filling dry ice in drill hole |
| CN113818921A (en) * | 2021-09-09 | 2021-12-21 | 华北科技学院(中国煤矿安全技术培训中心) | Device and method for shortening observation time of coal bed gas pressure measurement |
| CN113818921B (en) * | 2021-09-09 | 2023-08-15 | 华北科技学院(中国煤矿安全技术培训中心) | Device and method for shortening coal bed gas pressure measurement observation time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |