CN209556979U - A kind of water swelling hole packer - Google Patents
A kind of water swelling hole packer Download PDFInfo
- Publication number
- CN209556979U CN209556979U CN201821985766.XU CN201821985766U CN209556979U CN 209556979 U CN209556979 U CN 209556979U CN 201821985766 U CN201821985766 U CN 201821985766U CN 209556979 U CN209556979 U CN 209556979U
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- Prior art keywords
- hole packer
- water
- injecting pipeline
- interior
- packer
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- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 189
- 230000008961 swelling Effects 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000002360 explosive Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 36
- 230000000694 effects Effects 0.000 abstract description 9
- 238000005553 drilling Methods 0.000 description 35
- 239000003245 coal Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 2
- 229920002785 Croscarmellose sodium Polymers 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses a kind of water swelling hole packers, hole packer includes interior hole packer, outer hole packer, material bag, communicating pipe and water injecting pipeline, the interior hole packer, outer hole packer are the cylindrical body that cross section is annular, and it is successively embedded on communicating pipe, interior hole packer is inserted into the end of water injecting pipeline, the other end of water injecting pipeline passes through outer hole packer and is connected with external water flood pipeline, and the opening of inside hole packer and the water filling of outer hole packer is offered on the water injecting pipeline inside interior hole packer and outer hole packer；Material bag is mounted on the water injecting pipeline between interior hole packer and outer hole packer；Interior hole packer and outer hole packer are made using water uptake expansion material；Water uptake expansion material is housed inside material bag.The utility model no longer needs cementing, but sealing of hole is directly realized with this water swelling hole packer and water, and sealing of hole efficiency and effect all greatly improve, and has broad application prospects.
Description
Technical field
The utility model relates to a kind of method for sealing suitable for coal bed gas extraction drilling, and in particular to a kind of water suction is swollen
Swollen hole packer and method for sealing belong to fire damp Prevention Technique field.
Background technique
With the increase of coal mining depth, coal-bed gas pressure constantly increases, gas ejection, coal and gas prominent, watt
The accidents such as this explosion happen occasionally.In the prior art for Gas Disaster prevention and treatment problem mainly use gas drainage, coal-bed flooding,
The technologies such as coal seam hydraulic fracture.Gas emission, prevention and treatment gas overpressure in recovery process can be effectively reduced in gas drainage from coal seam
Limit and accumulation, pre- anti-gas explosion and coal and gas prominent accident, also transform harm into treasure, are developed as coal associated resources
It utilizes；Coal-bed flooding is then the gas permeability by increasing coal seam to coal seam high pressure water injection, reduces gas pressure, reduces gas pressure
Force gradient, changes the mechanical property of coal body, and stress distribution homogenization makes it be less likely to occur to protrude, while can play again dust-proof
Effect.Either gas drainage or coal-bed flooding, coal seam hydraulic fracture, effective sealing of hole of drilling are all to realize above-mentioned technology
Important foundation, existing mash gas pumping drilling mainly uses the form sealing of holes of a two stifled notes, and this method for sealing is needed to drilling
Interior injection cement or similar sealing material complete sealing of hole, therefore need manually to transport cement material progress sealing of hole, worker to underground
Large labor intensity；And after cement material solidification, since roadway surrounding rock etc. is still deforming, new crack can be also generated,
Lead to the gas leakage that drills, reduces gas pumping effect.
Summary of the invention
In order to overcome various deficiencies of the existing technology, the utility model provides a kind of water swelling hole packer, sealing of hole
Effect is good, and can according to need and fill the water repeatedly into drilling, reduces sealing of hole work flow, improves operating efficiency.
To realize above-mentioned purpose of utility model, the utility model provides a kind of water swelling hole packer, including interior hole packer,
Outer hole packer, material bag and water injecting pipeline, the interior hole packer, outer hole packer are the cylindrical body that cross section is annular, and
It is successively embedded on communicating pipe, interior hole packer is inserted into the end of water injecting pipeline, and the other end of water injecting pipeline passes through outer hole packer simultaneously
It is connected with external water flood pipeline, offers inside hole packer and covering on the water injecting pipeline inside interior hole packer and outer hole packer
The opening of hole device water filling；Material bag is mounted on the water injecting pipeline between interior hole packer and outer hole packer；Interior hole packer and covering
Hole device is made using water uptake expansion material；Water uptake expansion material is housed inside material bag.
Further, the water injecting pipeline is one, and is equipped with explosive valve on the pipeline in material bag.
Further, the water injecting pipeline is two, and the end of water injecting pipeline one connects interior hole packer, water injecting pipeline two
End connecting material bag, the other end of water injecting pipeline one and the other end of water injecting pipeline two both pass through outer hole packer and infuse with outside
Water lines are connected, and offer inside hole packer and outer hole packer on the water injecting pipeline one inside interior hole packer and outer hole packer
The opening of water filling.
The water uptake expansion material that the interior hole packer and outer hole packer use is water swelling rubber；Inside material bag
Water uptake expansion material is the mixture of particulate water-absorbing expanded rubber or water uptake expansion resin or the two.
Further, into being equipped with pressure gauge and valve on the water injecting pipeline before outer hole packer.
Further, into being equipped with valve on the water injecting pipeline one before outer hole packer；Water filling into before outer hole packer
Pressure gauge and valve are installed on pipeline two.
Further, the opening of water injecting pipeline is equipped with check valve one in interior hole packer；Water injecting pipeline in outer hole packer
Opening be equipped with check valve two.
High water absorption swollen resin is a kind of new functional macromolecule material, there is hydrophilic radical, can largely absorb moisture and
Swelling is able to maintain the synthetic resin that moisture does not outflow again, such as starch grafted acrylate class, graft acrylamide, high substituted degree
Cross-linked carboxymethyl cellulose, cross-linked carboxymethyl cellulose graft acrylamide, cross-linking type hydroxyethyl cellulose graft acrylamide
Polymer etc. generally can be absorbed and be equivalent to 100 times of resin volume or more of moisture, highest water absorption rate up to 1000 times with
On, therefore good water retention can be played, avoid water from rapidly permeating into drilling surrounding crack, and swollen resin can drill
It is interior to generate biggish extruding force, meet after water will not contraction distortion, remain with certain sealing of hole pressure in the hole in；And this sealing of hole
Device made after inside and outside hole packer water swelling sealing of hole by the material bag that is arranged in water injecting pipeline again inwardly outer hole packer it
Between pipeline section water filling, to guarantee to remain certain pressure in hole, sealing effect is good；It can also be repeatedly to drilling by pipeline
Interior water filling sealing drilling, the further new crack for blocking deformation of the surrounding rock in tunnel and generating enhance sealing of hole effect.
A kind of method for sealing of water swelling hole packer, comprising the following steps:
The first step will sequentially pass through interior hole packer and outer hole packer communicating pipe, and inner hole packer and outer hole packer will be fixed
On communicating pipe；
Second step, by interior hole packer, outer hole packer, material bag and pipeline with being sent into drilling communicating pipe；
Third step, by being filled the water in the inside hole packer of water injecting pipeline and outer hole packer, in interior hole packer and outer hole packer
It is expanded after water uptake expansion material water suction, the hole packer after expansion inwardly squeezes communicating pipe, outwardly against the wall of a borehole；
After filling in 4th step, interior hole packer and outer hole packer, start to fill the water into material bag, after material bag rupture, after
Continue water filling in the drilling among inside hole packer and outer hole packer, until filling；
5th step closes valve, stops filling the water, and variation in water pressure in drilling can be observed by pressure gauge, when the interior water that drills
Pressure drop is low can be continued to fill the water supplement into drilling.
6th step can conventionally be filled the water with gas in extraction borehole or into drilling, be pressed by communicating pipe
It splits.
Further, in the 4th step, when water injecting pipeline is a pipeline, after being filled in interior hole packer and outer hole packer,
Start to fill the water into material bag after continuing the rupture of pulse infusion shot firing valve, after material bag rupture, continues hole packer and outer hole packer inwards
Water filling in intermediate drilling, until filling.
Further, in the 4th step, when water injecting pipeline is two pipelines, by the inside hole packer of water injecting pipeline one and outside
Water filling, is filled the water by water injecting pipeline two into material bag in hole packer, after material bag rupture, continues hole packer and outer sealing of hole inwards
Water filling in drilling among device, until filling.
In order to reduce the volume of hole packer, the air being discharged in hole packer is needed before use.
Multiple hole packers in the same drilling between each hole packer in use, connect.
Compared with traditional method for sealing, the utility model by communicating pipe be arranged be packed into water uptake expansion material in,
Outer hole packer can be to biggish extruding force be generated in drilling after making hole packer water swelling, and sealing effect is good；The utility model
Can also by pipeline repeatedly into drilling water filling sealing drilling, further can block deformation of the surrounding rock in tunnel and generate newly split
Gap enhances sealing of hole effect.This sealing of hole equipment and method operational sequence are simple, and labor intensity is low, and sealing of hole effect is good, have wide
Market prospects.
Detailed description of the invention
Fig. 1 is one hole packer structural schematic diagram of the utility model embodiment；
Fig. 2 is the schematic diagram that one hole packer of the utility model embodiment enters drilling；
Fig. 3 is that the hole packer after interior water filling that drills of the utility model embodiment one expands sealing of hole schematic diagram；
Fig. 4 is that the utility model embodiment one drills interior sealing of hole end-state schematic diagram；
Fig. 5 is two hole packer structural schematic diagram of the utility model embodiment；
Fig. 6 is the schematic diagram that two hole packer of the utility model embodiment enters drilling；
Fig. 7 is that the hole packer after interior water filling that drills of the utility model embodiment two expands sealing of hole schematic diagram；
Fig. 8 is that the utility model embodiment two drills interior sealing of hole end-state schematic diagram；
In figure: 1, interior hole packer, 2, outer hole packer, 3, material bag, 4, explosive valve, 5, water injecting pipeline, 6, valve, 7, pressure
Table, 8, communicating pipe, 9, drilling, 10, check valve one, 11, check valve two, 12, water injecting pipeline two；13, water injecting pipeline one.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment one
As shown in Figures 1 to 4, a kind of water swelling hole packer, including interior hole packer 1, outer hole packer 2, material bag 3, connection
Pipe 8 and water injecting pipeline 5, the interior hole packer 1, outer hole packer 2 are the cylindrical body that cross section is annular, and are successively embedded in
On communicating pipe 8, the end of water injecting pipeline 5 be inserted into hole packer 1, the other end of water injecting pipeline pass through outer hole packer 2 and with outside
Water injecting pipeline is connected, and inside hole packer 1 and outer sealing of hole are offered on the water injecting pipeline 5 inside interior hole packer 1 and outer hole packer 2
The opening that device 2 fills the water；Material bag 3 is mounted on the water injecting pipeline between interior hole packer 1 and outer hole packer 2；Interior hole packer 1 and outer
Hole packer 2 is made using water uptake expansion material；Water uptake expansion material is housed inside material bag 3.
Further, the water injecting pipeline 5 is one, and explosive valve 4 is equipped on the pipeline in material bag 3.
The water uptake expansion material that the interior hole packer 1 and outer hole packer 2 use is water swelling rubber；In material bag 3
The water uptake expansion material in portion is the mixture of particulate water-absorbing expanded rubber or water uptake expansion resin or the two.
Further, into being equipped with pressure gauge 7 and valve 6 on the water injecting pipeline 5 before outer hole packer 2.
Further, the opening of water injecting pipeline is equipped with check valve 1 in interior hole packer 1；Water filling in outer hole packer 2
The opening of pipeline is equipped with check valve 2 11.
A kind of method for sealing of water swelling hole packer, which comprises the following steps:
The first step, will sequentially pass through interior hole packer 1 and outer hole packer 2 communicating pipe 8, and by inner hole packer 1 and outer hole packer 2
It is fixed on communicating pipe 8；
Interior hole packer 1, outer hole packer 2, material bag 3 and pipeline 5 are sent into communicating pipe 8 and drill by second step；
Third step, by being filled the water in the inside hole packer 1 of water injecting pipeline 5 and outer hole packer 2, interior hole packer 1 and outer hole packer 2
It is expanded after interior water uptake expansion material water suction, the hole packer after expansion inwardly squeezes communicating pipe 8, outwardly against the wall of a borehole；
4th step after filling in interior hole packer 1 and outer hole packer 2, continues the rupture of pulse infusion shot firing valve 4 and starts to material bag 3
Interior water filling after material bag 3 ruptures, continues water filling in the drilling among inside hole packer 1 and outer hole packer 2, until filling；
5th step closes valve 6, stops water filling, variation in water pressure in drilling can be observed by pressure gauge 7, when in drilling
Hydraulic pressure reduction can continue to fill the water supplement into drilling.
6th step can conventionally be filled the water with gas in extraction borehole or into drilling, be pressed by communicating pipe 8
It splits.
In order to reduce the volume of hole packer, the air being discharged in hole packer is needed before use.
Multiple hole packers in the same drilling between each hole packer in use, connect.
Embodiment two
As shown in Fig. 5 to 8, a kind of water swelling hole packer, including interior hole packer 1, outer hole packer 2, material bag 3, connection
Pipe 8 and water injecting pipeline 5, the interior hole packer 1, outer hole packer 2 are the cylindrical body that cross section is annular, and are successively embedded in
On communicating pipe 8, the end of water injecting pipeline 5 be inserted into hole packer 1, the other end of water injecting pipeline pass through outer hole packer 2 and with outside
Water injecting pipeline is connected, and inside hole packer 1 and outer sealing of hole are offered on the water injecting pipeline 5 inside interior hole packer 1 and outer hole packer 2
The opening that device 2 fills the water；Material bag 3 is mounted on the water injecting pipeline between interior hole packer 1 and outer hole packer 2；Interior hole packer 1 and outer
Hole packer 2 is made using water uptake expansion material；Water uptake expansion material is housed inside material bag 3.
Further, the water injecting pipeline is two, and the end of water injecting pipeline 1 connects interior hole packer 1, water injecting pipeline
2 12 end connecting material bag 3, the other end of water injecting pipeline 1 and the other end of water injecting pipeline 2 12 both pass through outer sealing of hole
Device 2 is simultaneously connected with external water flood pipeline, and opens up on the water injecting pipeline 1 inside interior hole packer 1 and outer hole packer 2 oriented
The opening that interior hole packer 1 and outer hole packer 2 fill the water.
The water uptake expansion material that the interior hole packer 1 and outer hole packer 2 use is water swelling rubber；In material bag 3
The water uptake expansion material in portion is the mixture of particulate water-absorbing expanded rubber or water uptake expansion resin or the two.
Further, into being equipped with valve 6 on the water injecting pipeline 1 before outer hole packer 2；Into before outer hole packer 2
Pressure gauge 7 and valve 6 are installed on water injecting pipeline 2 12.
Further, the opening of water injecting pipeline is equipped with check valve 1 in interior hole packer 1；Water filling in outer hole packer 2
The opening of pipeline is equipped with check valve 2 11.
A kind of method for sealing of water swelling hole packer, which comprises the following steps:
The first step, will sequentially pass through interior hole packer 1 and outer hole packer 2 communicating pipe 8, and by inner hole packer 1 and outer hole packer 2
It is fixed on communicating pipe 8；
Interior hole packer 1, outer hole packer 2, material bag 3 and pipeline 5 are sent into communicating pipe 8 and drill by second step；
Third step, by being filled the water in the inside hole packer 1 of water injecting pipeline 1 and outer hole packer 2, interior hole packer 1 and outer sealing of hole
It is expanded after water uptake expansion material water suction in device 2, the hole packer after expansion inwardly squeezes communicating pipe 8, outwardly against the wall of a borehole；
4th step is filled the water by water injecting pipeline 2 12 into material bag 3 after filling in interior hole packer 1 and outer hole packer 2,
After material bag 3 ruptures, continue water filling in the drilling among inside hole packer 1 and outer hole packer 2, until filling；
5th step closes valve 6, stops water filling, variation in water pressure in drilling can be observed by pressure gauge 7, when in drilling
Hydraulic pressure reduction can continue to fill the water supplement into drilling.
6th step can conventionally be filled the water with gas in extraction borehole or into drilling, be pressed by communicating pipe 8
It splits.
Further, in the 4th step, when water injecting pipeline is two pipelines, pass through the inside hole packer 1 of water injecting pipeline 1
It fills the water in outer hole packer 2, is filled the water by water injecting pipeline 2 12 into material bag 3, after material bag 3 ruptures, continue sealing of hole inwards
Water filling in drilling among device 1 and outer hole packer 2, until filling.
In order to adjust the absorption speed of water uptake expansion material, thus it is possible to vary the production of water uptake expansion material, which matches and changes, inhales
The shape of water material, such as water swelling can be made as to filament shape, graininess, and can be by a variety of water-absorption materials of different shapes
Material is used cooperatively.
In order to reduce the volume of hole packer, the air being discharged in hole packer is needed before use.
Multiple hole packers in the same drilling between each hole packer in use, connect.
Claims (6)
1. a kind of water swelling hole packer, which is characterized in that including interior hole packer (1), outer hole packer (2), material bag (3), with
And water injecting pipeline (5), the interior hole packer (1), outer hole packer (2) are the cylindrical body that cross section is annular, water injecting pipeline (5)
End be inserted into hole packer (1), the other end of water injecting pipeline (5) passes through outer hole packer (2) and is connected with external water flood pipeline,
Inside hole packer (1) and outer hole packer (2) are offered on the water injecting pipeline (5) of interior hole packer (1) and outer hole packer (2) inside
The opening of water filling；Material bag (3) is mounted on the water injecting pipeline between interior hole packer (1) and outer hole packer (2)；Interior hole packer
(1) it is made with outer hole packer (2) using water uptake expansion material；Water uptake expansion material is housed inside material bag (3).
2. water swelling hole packer according to claim 1, which is characterized in that the water injecting pipeline (5) is one, and material
Explosive valve (4) are installed on the pipeline in material bag (3).
3. water swelling hole packer according to claim 1, which is characterized in that the water injecting pipeline is two, water injection pipe
The end on road one (13) connects interior hole packer (1), the end connecting material bag (3) of water injecting pipeline two (12), water injecting pipeline one
(13) other end of the other end and water injecting pipeline two (12) both passes through outer hole packer (2) and is connected with external water flood pipeline, and
Inside hole packer (1) and outer hole packer are offered on the water injecting pipeline one (13) of interior hole packer (1) and outer hole packer (2) inside
(2) opening filled the water.
4. water swelling hole packer according to claim 2, which is characterized in that the water injection pipe before entering outer hole packer (2)
Pressure gauge (7) and valve (6) are installed on road (5).
5. water swelling hole packer according to claim 3, which is characterized in that the water injection pipe before entering outer hole packer (2)
Valve (6) are installed on road one (13)；Be equipped on into the water injecting pipeline two (12) before outer hole packer (2) pressure gauge (7) and
Valve (6).
6. water swelling hole packer according to claim 4 or 5, which is characterized in that the interior water injecting pipeline of interior hole packer (1)
Opening is equipped with check valve one (10)；The opening of the interior water injecting pipeline of outer hole packer (2) is equipped with check valve two (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821985766.XU CN209556979U (en) | 2018-11-29 | 2018-11-29 | A kind of water swelling hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821985766.XU CN209556979U (en) | 2018-11-29 | 2018-11-29 | A kind of water swelling hole packer |
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| Publication Number | Publication Date |
|---|---|
| CN209556979U true CN209556979U (en) | 2019-10-29 |
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ID=68300838
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821985766.XU Active CN209556979U (en) | 2018-11-29 | 2018-11-29 | A kind of water swelling hole packer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372467A (en) * | 2018-11-29 | 2019-02-22 | 中国矿业大学 | A kind of water swelling hole packer and method for sealing |
-
2018
- 2018-11-29 CN CN201821985766.XU patent/CN209556979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372467A (en) * | 2018-11-29 | 2019-02-22 | 中国矿业大学 | A kind of water swelling hole packer and method for sealing |
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