CN110145276A - A kind of grouting plugging device and its method for blocking - Google Patents
A kind of grouting plugging device and its method for blocking Download PDFInfo
- Publication number
- CN110145276A CN110145276A CN201910474102.XA CN201910474102A CN110145276A CN 110145276 A CN110145276 A CN 110145276A CN 201910474102 A CN201910474102 A CN 201910474102A CN 110145276 A CN110145276 A CN 110145276A
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- China
- Prior art keywords
- plugging
- bag
- slip casting
- bags
- slurry
- 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
- 230000000903 blocking effect Effects 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000007569 slipcasting Methods 0.000 claims abstract description 66
- 239000002002 slurry Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000002360 explosive Substances 0.000 claims abstract description 12
- 238000000605 extraction Methods 0.000 claims description 16
- 239000004744 fabric Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000010339 dilation Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 18
- 238000005086 pumping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
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)
- Pipe Accessories (AREA)
Abstract
A kind of grouting plugging device, including a slip casting channel and two plugging bags, two plugging bags are preceding plugging bag, rear plugging bag, slip casting channel is sequentially connected to two plugging bags, part of the slip casting channel in two plugging bags is designed with discharge port, there is distance between two plugging bags, slip casting channel is located at the part between two plugging bags and is equipped with explosive valve, and the bag wall of plugging bag can pass water through and slurry cannot be made to pass through.The invention also discloses a kind of method for blocking using above-mentioned grouting plugging device.Compared with the existing technology, technical effect of the invention is, the present invention is no longer equipped with check valve, it can equally be drained by the pressure of slip casting by plugging bag bag wall in slip casting, while draining, as slurry constantly injects, the space which once occupied is occupied by the slurry of subsequent entrance, it not will form return air gap, improve plugging effect.
Description
Technical field
The present invention relates to a kind of fluid filling hole sealing devices suitable for using when blocked gas drainage hole under mine.
Background technique
Existing plugging device, such as Fig. 1, including pump-line (also referred to as gas drainage pipeline) 10, slip casting channel 30, energy
It puts in gas extraction hole, the radial direction of 10 outer wall of pump-line fixes two cricoid plugging bag (preceding plugging bags 21, rear envelope
Stifled bag 22), slip casting channel 30 is sequentially connected to two plugging bags, and part of the slip casting channel 30 in plugging bag is equipped with check valve 31,
Slip casting channel 30 can block material to two plugging bag injections by check valve 31, and be unable to reverse flow.The mesh of check valve is set
Be, after the completion of injection slurry is completed, moisture in plugging bag can pass through check valve 31(and return) flow to slip casting channel 30, add
The fixed speed of slurry in fast plugging bag prevents the moisture from taking up space, forms return air gap in subsequent extraction extraction operation,
Influence the efficiency of gas pumping.
When blocking operation, first pump-line 10 is extended upwardly into gas extraction hole, is blocked from grouting pipe 30 to two
Bag slip casting, blocks the space between pump-line outer wall and hole hole wall in plugging bag and forms plug, two plugging bags from
After the pressure of body reaches a certain level, between grouting pipe rupture (generally explosive valve 32), between two plugging bags
Hole in slip casting, (at this point, the water in slurry is extruded, still, slurry is after the pressure when the part reaches a certain level
Pressed solid and uncured state), the slip casting power in slip casting channel 30 is removed, the water in plugging bag can be by gravity from Grouting Pipe
30 outlet of road, accelerates the solidification of slurry.
Summary of the invention
The technical problem to be solved in the present invention: in practice, there are two drawbacks for setting check valve: the first, it hinders slip casting
Flowing of the channel 30 into plugging bag slows down injection speed；The second, after the slip casting power for removing slip casting channel, in plugging bag
Water can be after 30 outlet of grouting pipe, the moisture outlet, the space once occupied will form return air gap, influence gas pumping
Efficiency.
Technical solution of the present invention specifically:
A kind of grouting plugging device, including a slip casting channel and two plugging bags, two plugging bags are preceding plugging bag, rear closure
Bag, slip casting channel are sequentially connected to two plugging bags, and part of the slip casting channel in two plugging bags is designed with discharge port, two envelopes
There is distance between stifled bag, slip casting channel is located at the part between two plugging bags and is equipped with explosive valve, and the bag wall of plugging bag can make water
By that slurry cannot be made to pass through.
It further includes pump-line, and the radial direction of pump-line outer wall fixes two plugging bags: preceding plugging bag, rear closure
Bag.
Drainage pipeline between preceding plugging bag, rear plugging bag, drainage pipeline are connected to the external world after extending rearward through rear plugging bag,
Filter cloth is wrapped up in its outside, is distributed multiple through-holes on tube wall, the mesh of filter cloth can pass water through and slurry cannot be made to pass through.
The size of the discharge port of preceding plugging bag is greater than the size of the discharge port of rear plugging bag.
A kind of method for blocking using above-mentioned grouting plugging device, includes the following steps:
The first step will be put in gas extraction hole on the left of pump-line, until two cricoid plugging bags are located at gas drainage under suction
The block-up position in hole；
Second step, by the slip casting into two plugging bags of slip casting channel, the pressure in plugging bag is gradually increased, meanwhile, plugging bag
Start expansion outward, until it touches the hole wall of gas extraction hole, dilation referring to appended drawing reference, meanwhile, plugging bag
Interior water flows to its outside by its bag wall；
Third step, when the pressure in the slip casting channel at explosive valve is greater than its critical value, explosive valve rupture, at this point, two closure
Two plugs of bag formation, it is last between two plugs that slurry in slip casting channel by rent enters gas extraction hole
Slip casting space, as slip casting is more and more, the pressure in last slip casting space is increasing, and the water in last slip casting space is extruded to
Through-hole, drainage pipeline outlet；
4th step persistently keeps the grouting pressure in slip casting channel, continues externally to drain the space once occupied carrying out supplement slurry, directly
In to two plugging bags, the slurry curing in last slip casting space, then withdraw grouting pressure, complete to block.
Compared with the existing technology, technical effect of the invention is that the present invention is no longer equipped with check valve, and slip casting is leaned in slip casting
Pressure can equally be drained by plugging bag bag wall, while draining, as slurry constantly injects, which was once occupied
Space occupied by the slurry of subsequent entrance, not will form return air gap, improve plugging effect.
Detailed description of the invention
Fig. 1 is the schematic diagram of the prior art.
Fig. 2 is schematic diagram (one) of the invention.
Fig. 3 is enlarged diagram when one section of drainage pipeline and its filter cloth are unfolded in Fig. 2.
Fig. 4 is use state of the invention with reference to figure.
Fig. 5 is schematic diagram (two) of the invention.
Specific embodiment
In this specification, the left side of attached drawing be before, after right side is, it is forward and backward convenient just for the sake of description, without representing it
His meaning.
Such as Fig. 2, a kind of grouting plugging device, including pump-line 10, slip casting channel 30, pump-line 10 can put in gas pumping
In discharge hole, the radial direction of 10 outer wall of pump-line fixes two cricoid plugging bags: preceding plugging bag 21, rear plugging bag 22, note
Slurry channel 30 is sequentially connected to two plugging bags, and part of the slip casting channel 30 in two plugging bags is designed with discharge port 33, and two
There is distance between plugging bag, slip casting channel 30 is located at the part between two plugging bags and is equipped with explosive valve 32, the bag wall of plugging bag
It can pass water through and slurry cannot be made to pass through.
Such as Fig. 2-3, drainage pipeline 40 between preceding plugging bag 11, rear plugging bag 12, after drainage pipeline 40 extends rearward through
It is connected to extraneous, outside package filter cloth 42 after plugging bag 12, is distributed multiple through-holes 41 on tube wall, the mesh of filter cloth 42 can make water
By that slurry cannot be made to pass through.Purpose equipped with drainage pipeline 40 is for the object between preceding plugging bag 11, rear plugging bag 12
Water outlet in material.
When gas extraction hole obliquely when, preceding plugging bag 11 need to overcome more gravity actings and slow,
The charging rate of plugging bag is very fast after leading to two, and plugging bag 22 completes expansion too early after occurring, which makes slip casting channel 30
Radial direction be squeezed and become flat, cause its area of section reduce, conveying capacity decline, for this purpose, the discharge port of preceding plugging bag 11
33 size is greater than the size of the discharge port 33 of rear plugging bag 12.
Its working principle is that:
It is in use, method for blocking includes the following steps:
Such as Fig. 4, the first step puts in the left side of pump-line 10 in gas extraction hole 50, until two cricoid plugging bag positions
In the block-up position of gas extraction hole 50.
Second step, by the slip casting into two plugging bags of slip casting channel 30, the pressure in plugging bag is gradually increased, meanwhile,
Plugging bag starts to expand outward, until it touches the hole wall of gas extraction hole 50, dilation referring to appended drawing reference 221,
222, meanwhile, the water in plugging bag flows to its outside by its bag wall.
Third step, when the pressure in the slip casting channel 30 at explosive valve 32 is greater than its critical value, explosive valve 32 ruptures, this
When, two closure two plugs of bag formation, the slurry in slip casting channel 30 enters gas extraction hole positioned at two by rent
Last slip casting space 321 between plug, as slip casting is more and more, the pressure in last slip casting space 321 is increasing, finally
The water in slip casting space 321 is extruded to through-hole 41,40 outlet of drainage pipeline；
4th step persistently keeps the grouting pressure in slip casting channel 30, continues externally to drain the space once occupied carrying out supplement slurry,
Until in two plugging bags, the slurry curing in last slip casting space 321, then withdraw grouting pressure, complete to block.
In addition, closure sometimes does not need pumping (gas pumping) pipeline, such as the closure of exploration hole, if by pair
The detection of exploration hole does not find the toxic gas of gas etc, it is only necessary to close the exploration hole, not need to carry out pumping watt
This, is at this point it is possible to use following hole packer:
Such as Fig. 5, a kind of grouting plugging device, including a slip casting channel 30 and two plugging bags: preceding plugging bag 21, rear plugging bag
22, slip casting channel 30 is sequentially connected to two plugging bags, and part of the slip casting channel 30 in two plugging bags is designed with discharge port 33,
There is distance between two plugging bags, slip casting channel 30 is located at the part between two plugging bags and is equipped with explosive valve 32, plugging bag
Bag wall can pass water through and slurry cannot be made to pass through.
This hole packer is in use, two plugging bags are one in front and one in back put into exploration hole, by two plugging bags
Material feeding, two plugging bags can also become two sealing rings, between space also also sealing can be realized by injection slurry.
It compares above, this plugging device does not use check valve yet, and technical effect is same.
Other content participates in the prior art.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without depart from that overall concept of the invention, several changes and improvements can also be made, these also should be considered as of the invention
Protection scope.
Claims (5)
1. a kind of grouting plugging device, including a slip casting channel (30) and two plugging bags, two plugging bags are preceding plugging bag
(21), rear plugging bag (22), slip casting channel (30) are sequentially connected to two plugging bags, it is characterised in that: slip casting channel (30) are two
Part in a plugging bag is designed with discharge port (33), there is distance between two plugging bags, and slip casting channel (30) are located at two envelopes
Part between stifled bag is equipped with explosive valve (32), and the bag wall of plugging bag can pass water through and slurry cannot be made to pass through.
2. grouting plugging device as described in claim 1, it is characterised in that: it further includes pump-line (10), pump-line
(10) radial direction of outer wall fixes two plugging bags: preceding plugging bag (21), rear plugging bag (22).
3. grouting plugging device as claimed in claim 2, it is characterised in that: preceding plugging bag (11), rear plugging bag are arranged between (12)
Waterpipe (40), drainage pipeline (40) extend rearward through rear plugging bag (12) and are connected to the external world afterwards, and filter cloth (42) are wrapped up in outside,
It is distributed on its tube wall multiple through-holes (41), the mesh of filter cloth (42) can pass water through and slurry cannot be made to pass through.
4. grouting plugging device as claimed in claim 2, it is characterised in that: the size of the discharge port (33) of preceding plugging bag (11) is big
In the size of the discharge port (33) of rear plugging bag (12).
5. a kind of method for blocking using grouting plugging device as claimed in claim 3, characterized by the following steps:
The first step will be put in gas extraction hole (50) on the left of pump-line (10), until two cricoid plugging bags are located at
The block-up position of gas extraction hole (50)；
Second step, by slip casting channel (30) slip casting into two plugging bags, the pressure in plugging bag is gradually increased, meanwhile, envelope
Stifled bag starts to expand outward, and until it touches the hole wall of gas extraction hole (50), dilation is referring to appended drawing reference
(221), (222), meanwhile, the water in plugging bag flows to its outside by its bag wall；
Third step, when the pressure in the slip casting channel (30) at explosive valve (32) is greater than its critical value, explosive valve (32) rupture, this
When, two closure two plugs of bag formation, the slurry in slip casting channel (30) enters gas extraction hole positioned at two by rent
Last slip casting space (321) between a plug, as slip casting is more and more, the pressure of last slip casting space (321) is increasingly
Greatly, the water of last slip casting space (321) is extruded to through-hole (41), drainage pipeline (40) outlet；
4th step persistently keeps the grouting pressure of slip casting channel (30), continues externally to drain the space once occupied carrying out supplement slurry
Material, until in two plugging bags, the slurry curing in last slip casting space (321), then withdraw grouting pressure, complete to block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474102.XA CN110145276A (en) | 2019-06-02 | 2019-06-02 | A kind of grouting plugging device and its method for blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474102.XA CN110145276A (en) | 2019-06-02 | 2019-06-02 | A kind of grouting plugging device and its method for blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110145276A true CN110145276A (en) | 2019-08-20 |
Family
ID=67589904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910474102.XA Pending CN110145276A (en) | 2019-06-02 | 2019-06-02 | A kind of grouting plugging device and its method for blocking |
Country Status (1)
| Country | Link |
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| CN (1) | CN110145276A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682001A (en) * | 2020-12-30 | 2021-04-20 | 山西工程技术学院 | Coal mine inclined large-diameter drill hole sealing method based on hand-driven connecting rod telescopic positioning |
| CN113202446A (en) * | 2021-06-25 | 2021-08-03 | 河南理工大学 | Reusable hole packer for coal mine underground gas extraction cross-layer drilling and operation method thereof |
| CN113202103A (en) * | 2021-05-06 | 2021-08-03 | 中山大学 | Grouting plugging method for offshore wind turbine pile foundation |
| CN114427234A (en) * | 2022-02-28 | 2022-05-03 | 上海建工集团股份有限公司 | Underground engineering water leakage point plugging device and method thereof |
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| CN210033369U (en) * | 2019-06-02 | 2020-02-07 | 河南志林矿山设备科技有限公司 | Slip casting plugging device |
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2019
- 2019-06-02 CN CN201910474102.XA patent/CN110145276A/en active Pending
Patent Citations (6)
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| US20150322785A1 (en) * | 2012-12-10 | 2015-11-12 | Suomen Metallityö Oy | Rock anchor bolt |
| WO2018192042A1 (en) * | 2017-04-18 | 2018-10-25 | 江苏大学 | Environmentally friendly capsular bag-type downhole karst cave blocking device, and blocking method therefor |
| CN108119094A (en) * | 2018-02-25 | 2018-06-05 | 中国平煤神马能源化工集团有限责任公司 | Deep fractures mash gas pumping drilling two blocks up one row's hole sealing device of a note and application method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682001A (en) * | 2020-12-30 | 2021-04-20 | 山西工程技术学院 | Coal mine inclined large-diameter drill hole sealing method based on hand-driven connecting rod telescopic positioning |
| CN113202103A (en) * | 2021-05-06 | 2021-08-03 | 中山大学 | Grouting plugging method for offshore wind turbine pile foundation |
| CN113202446A (en) * | 2021-06-25 | 2021-08-03 | 河南理工大学 | Reusable hole packer for coal mine underground gas extraction cross-layer drilling and operation method thereof |
| CN114427234A (en) * | 2022-02-28 | 2022-05-03 | 上海建工集团股份有限公司 | Underground engineering water leakage point plugging device and method thereof |
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