CN109162644A - Injected hole sealing casing and its application method for underground extraction borehole operation - Google Patents
Injected hole sealing casing and its application method for underground extraction borehole operation Download PDFInfo
- Publication number
- CN109162644A CN109162644A CN201811332716.6A CN201811332716A CN109162644A CN 109162644 A CN109162644 A CN 109162644A CN 201811332716 A CN201811332716 A CN 201811332716A CN 109162644 A CN109162644 A CN 109162644A
- Authority
- CN
- China
- Prior art keywords
- sealing
- tube body
- baffle
- injected hole
- extraction borehole
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 54
- 238000000605 extraction Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000007569 slipcasting Methods 0.000 claims abstract description 14
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Abstract
The invention discloses the injected hole sealing casings and its application method for underground extraction borehole operation, belong to down-hole drilling slip casting field；The technical problem to be solved is that one kind is provided without using pvc pipe, it can effectively prevent spillage, improve grouting pressure, stationarity is good, the strong injected hole sealing casing for the operation of underground extraction borehole of stability；Solve the technical solution of technical problem use are as follows: the injected hole sealing casing for underground extraction borehole operation, including tube body, outer surface of tube body is provided with sealing bandage, body open one end is provided with baffle, sealing bandage is multi-layer braided bag, baffle is flange, and the connection type of flange and tube body is welding, and the sealing bandage and flange baffle being arranged by outer layer can effectively accomplish mortar leakage prevention and pressure-resistant effect；It the composite can be widely applied to down-hole drilling slip casting field.
Description
Technical field
The present invention is used for the injected hole sealing casing and its application method of underground extraction borehole operation, belongs to down-hole drilling note
Starch technical field.
Background technique
It needs sealing casing being set in aperture before the construction of underground grouting hole, then sealing valve is installed, to meet slip casting
Pressure, currently used down-hole drilling grouting method are.A piece aperture is installed at the edge of casing before sealing casing is installed
The pvc pipe of diameter carries out slip casting along pvc pipe after installing sealing casing, this until cement slurry is flowed out out of sealing casing
Method slip casting, the casing of sealing casing is more compared with the cavity between coal wall generally after theing cement solidifies, and causes grouting pressure small,
Sealing casing stability is poor, is not able to satisfy the effect of fixed sealing casing.
Summary of the invention
The invention overcomes the deficiencies of the prior art, and provides one kind not to use pvc pipe, can effectively prevent leakage
Slurry improves grouting pressure, and stationarity is good, the strong injected hole sealing casing for the operation of underground extraction borehole of stability.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows: the note for underground extraction borehole operation
Hole sealing casing is starched, including tube body, outer surface of tube body are provided with sealing bandage, body open one end is provided with baffle.
The sealing bandage is multi-layer braided bag.
The baffle is flange, and the connection type of the flange and tube body is welding.
Coverage area of the sealing bandage on tube body is 1 meter.
For the injected hole sealing casing of underground extraction borehole operation, application method is as follows:
1), sealing bandage is intensively wound in the outer surface of tube body of sealing casing；
It 2), will be in the push-in drilling of sealing casing using drilling machine；
3), the welding flange-type baffle at the nozzle of tube body is blocked the sealing bandage at nozzle by baffle；
4), using the slush pump slip casting with pressure out of sealing casing pipe, droplet is oozed out on the sealing bandage of water-baffling sleeve outer surface, is stopped
Only slip casting operation.
Compared with the prior art, the invention has the following beneficial effects: by being externally wrapped with setting sealing bandage in tube body,
When slip casting, it can increase external leakproofness by the sealing bandage in outside, aperture be blocked, by water-baffling sleeve
Cavity between pipe and coal wall is blocked, and the stability and fastness of sealing casing are increased.
Detailed description of the invention
Following further describes the present invention with reference to the drawings.
Fig. 1 is the structural diagram of the present invention.
1 it is tube body in figure, 2 be sealing bandage, 3 is baffle.
Specific embodiment
As shown in Figure 1, the present invention is used for the injected hole sealing casing of underground extraction borehole operation, including tube body 1, tube body 1
Outer surface is provided with sealing bandage 2, and 1 open at one end of tube body is provided with baffle 2, and sealing bandage 2 is multi-layer braided bag, and baffle 3 is
The connection type of flange, the baffle 3 and tube body 1 is welding, and sealing coverage area of the bandage 2 on tube body is 1 meter.
In the use of the present invention, intensively winding woven bag in tube body circumferential outer surface, winding range is 1 meter, uses drilling machine
Sealing casing is promoted in the drilling that has opened up in advance, welded flange baffle at tube mouth, flange baffle is by the establishment of oral area
Bag is blocked, and uses the slush pump slip casting with pressure out of sealing casing later, until the bag weaved interior exudation of sealing vicinity is thin
Close droplet can carry out interval of pausing when slip casting, the cement slurry on woven bags is waited to bond, and it is close to increase woven bag volume
Feng Xing stops slip casting after reaching predetermined pressure, the effect of good mortar leakage prevention and pressure resistance can be played, using this water-baffling sleeve
Pipe carries out slip casting, and grouting amount can increase by two bags of cement in each injected hole, can effectively reach solid pipe requirement, while not making
With pvc pipe, reduce the consumption of material.
The embodiment of the present invention is explained in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Example, within the knowledge of a person skilled in the art, can also make without departing from the purpose of the present invention
Various change out.
Claims (5)
1. being used for the injected hole sealing casing of underground extraction borehole operation, including tube body (1), it is characterised in that: tube body (1) appearance
Face is provided with sealing bandage (2), and tube body (1) open at one end is provided with baffle (2).
2. the injected hole sealing casing according to claim 1 for the operation of underground extraction borehole, it is characterised in that: described
Sealing bandage (2) be multi-layer braided bag.
3. the injected hole sealing casing according to claim 1 for the operation of underground extraction borehole, it is characterised in that: described
Baffle (3) be flange, the connection type of the baffle (3) and tube body (1) is welding.
4. the injected hole sealing casing according to claim 1 for the operation of underground extraction borehole, it is characterised in that: described
Coverage area of the sealing bandage (2) on tube body be 1 meter.
5. the injected hole sealing casing according to claim 1 for the operation of underground extraction borehole, which is characterized in that use
Method is as follows:
1), sealing bandage (2) is intensively wound in tube body (1) outer surface of sealing casing；
It 2), will be in the push-in drilling of sealing casing using drilling machine；
3), the welding flange-type baffle (3) at the nozzle of tube body (1) is sealed the sealing bandage at nozzle by baffle (3)
It is stifled；
4), using the slush pump slip casting with pressure out of sealing casing pipe, droplet is oozed out on the sealing bandage of water-baffling sleeve outer surface, is stopped
Only slip casting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332716.6A CN109162644A (en) | 2018-11-09 | 2018-11-09 | Injected hole sealing casing and its application method for underground extraction borehole operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811332716.6A CN109162644A (en) | 2018-11-09 | 2018-11-09 | Injected hole sealing casing and its application method for underground extraction borehole operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162644A true CN109162644A (en) | 2019-01-08 |
Family
ID=64875757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811332716.6A Pending CN109162644A (en) | 2018-11-09 | 2018-11-09 | Injected hole sealing casing and its application method for underground extraction borehole operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162644A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607995A (en) * | 2019-09-29 | 2019-12-24 | 中国矿业大学 | Method for preventing casing from being broken in new underground construction hydrological drilling |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128039A (en) * | 1994-10-31 | 1996-05-21 | Japan Found Eng Co Ltd | Anchor construction method |
| CN102979478A (en) * | 2012-12-05 | 2013-03-20 | 山东大学 | Water stopping device for water inrush borehole drilling |
| CN103352675A (en) * | 2013-07-01 | 2013-10-16 | 陕西煤业化工技术研究院有限责任公司 | Gas extraction, drilling and sealing device and method |
| CN104929565A (en) * | 2014-12-18 | 2015-09-23 | 安徽恒源煤电股份有限公司 | Double-layered grouting guide pipe |
| CN204677157U (en) * | 2015-06-13 | 2015-09-30 | 山西晋城无烟煤矿业集团有限责任公司 | Three stifled two note hole sealing devices |
| CN205840843U (en) * | 2016-07-24 | 2016-12-28 | 山东唐口煤业有限公司 | A kind of deep hole spacing injection hole sealing structure |
| CN209053563U (en) * | 2018-11-09 | 2019-07-02 | 山西潞安矿业(集团)有限责任公司 | Injected hole sealing casing for underground extraction borehole operation |
-
2018
- 2018-11-09 CN CN201811332716.6A patent/CN109162644A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08128039A (en) * | 1994-10-31 | 1996-05-21 | Japan Found Eng Co Ltd | Anchor construction method |
| CN102979478A (en) * | 2012-12-05 | 2013-03-20 | 山东大学 | Water stopping device for water inrush borehole drilling |
| CN103352675A (en) * | 2013-07-01 | 2013-10-16 | 陕西煤业化工技术研究院有限责任公司 | Gas extraction, drilling and sealing device and method |
| CN104929565A (en) * | 2014-12-18 | 2015-09-23 | 安徽恒源煤电股份有限公司 | Double-layered grouting guide pipe |
| CN204677157U (en) * | 2015-06-13 | 2015-09-30 | 山西晋城无烟煤矿业集团有限责任公司 | Three stifled two note hole sealing devices |
| CN205840843U (en) * | 2016-07-24 | 2016-12-28 | 山东唐口煤业有限公司 | A kind of deep hole spacing injection hole sealing structure |
| CN209053563U (en) * | 2018-11-09 | 2019-07-02 | 山西潞安矿业(集团)有限责任公司 | Injected hole sealing casing for underground extraction borehole operation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110607995A (en) * | 2019-09-29 | 2019-12-24 | 中国矿业大学 | Method for preventing casing from being broken in new underground construction hydrological drilling |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |