CN107780873A - The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling - Google Patents
The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling Download PDFInfo
- Publication number
- CN107780873A CN107780873A CN201710994671.8A CN201710994671A CN107780873A CN 107780873 A CN107780873 A CN 107780873A CN 201710994671 A CN201710994671 A CN 201710994671A CN 107780873 A CN107780873 A CN 107780873A
- Authority
- CN
- China
- Prior art keywords
- capsule
- sealing
- gas pumping
- slurries
- pipe
- 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.)
- Granted
Links
- 239000002775 capsule Substances 0.000 title claims abstract description 100
- 238000007789 sealing Methods 0.000 title claims abstract description 68
- 238000005086 pumping Methods 0.000 title claims abstract description 41
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000004033 plastic Substances 0.000 claims abstract description 22
- 229920003023 plastic Polymers 0.000 claims abstract description 22
- 239000011440 grout Substances 0.000 claims abstract description 17
- 239000002360 explosive Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000002002 slurry Substances 0.000 claims description 38
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000002045 lasting effect Effects 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 229920001971 elastomer Polymers 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000005060 rubber Substances 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000605 extraction Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
-
- 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
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
- E21B33/1277—Packers; Plugs with inflatable sleeve characterised by the construction or fixation of the sleeve
Abstract
The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling, belong to mash gas pumping drilling technical field of sealing technology, technical problem to be solved is to provide the coal mine gas extraction drill hole sealing device and encapsulating method that a kind of cost is low, effect is good, used technical scheme：A kind of three-stage capsule sealing device of mash gas pumping drilling, the first capsule and the second capsule are connected to the both ends of gas pumping pipe by connector respectively；First capsule includes the first plastic pipe, the first capsule body and explosive valve, first plastic pipe central slot outer wrap has the first capsule body, the junction that first capsule body one end and the junction of groove are provided with the first grouting port, the other end and groove is provided with grout outlet and explosive valve, the outer wrap of second plastic pipe central slot has the second capsule body, second capsule body one end and the junction of groove are provided with the second grouting port, and the present invention is applied to mash gas pumping drilling.
Description
Technical field
The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling, belong to underground coal mine coal work
At face, stone door punching coal, the mash gas pumping drilling technical field of sealing technology in the place such as coal road.
Background technology
Gas Disaster is one of China's coal-mine Major Natural Disasters, turns into the main lance for restricting Safety of Coal Mine Production at present
Shield, while gas control is the key point of China's coal-mine lasting exploit, wherein being watt by construction drill mash gas extraction technology
The effective means that this integrated control utilizes.In coal mine gas drainage work, the sealing quality of drilling is to influence extraction effect
The key factor of fruit.
At present, the mash gas pumping drilling encapsulating method that colliery uses mainly has：Tradition " a two stifled notes " sealing, polyurethane are close
Envelope.Wherein tradition " a two stifled notes " method of pore sealing problem is mainly manifested in：Plug is individually one in " a two stifled notes " technique
Technique, it is necessary first to which stifled, this results in complex procedures, the problem of workload increase；" two is stifled " low intensity, the closure of both ends plug are strong
Spend that low, effect is poor, grouting pressure does not increase, sealing of hole even not with pressure, it is impossible to borehole circumference crack is tightly blocked, can not
Reach the purpose of " note ".Polyurethane seal does not often reach preferably then because seal length is inadequate, is difficult to penetrate into borehole fissure
Sealing state, encapsulant has certain toxicity, and price is high, causes to seal cost height, colliery is difficult to bear.Therefore, it is understanding
The certainly sealing problem of mash gas pumping drilling, urgent need seek brand-new sealing structure and method, meet that underground coal mine high quality drills
Seal request.
The content of the invention
The technical problems to be solved by the invention are to provide the coal mine gas extraction drill hole sealing that a kind of cost is low, effect is good
Device and encapsulating method.
In order to solve the above technical problems, the technical solution adopted in the present invention：A kind of three-stage glue of mash gas pumping drilling
Capsule sealing device, including the first capsule, gas pumping pipe, the second capsule and connector；
First capsule and the second capsule are connected to the both ends of gas pumping pipe by connector respectively；
First capsule includes the first plastic pipe, the first capsule body and explosive valve, is provided with the middle part of first plastic pipe
Groove, there is the first capsule body in the outer wrap of groove, the junction of described first capsule body one end and groove is provided with the first note
The junction of slurry mouth, the other end and groove is provided with grout outlet and explosive valve, and the first grouting port and grout outlet are respectively positioned on explosion
The top of valve, at the same provided with the first grouting port one end away from gas pumping pipe, one end provided with grout outlet close to gas pumping
Pipe；
Second capsule includes the second plastic pipe and the second capsule body, and groove is provided with the middle part of second plastic pipe,
The outer wrap of groove has the second capsule body, and the junction of described second capsule body one end and groove is provided with the second grouting port, and
And one end provided with the second grouting port is close to gas pumping pipe.
First grouting port, the second grouting port and grout outlet are can be with the fast interface of pipeline rapid abutting joint.
First plastic pipe, the second plastic pipe are made by high strength polyethylene material；
First capsule body and the second capsule body are made by high resiliency, heat-resisting, ageing-resistant EP rubbers.
A kind of encapsulating method of the three-stage capsule sealing device of mash gas pumping drilling, is followed the steps below：First
Step, the first capsule, gas pumping pipe, the second capsule are connected by connector, and by grout outlet and the second grouting port
Connected with Grouting Pipe；
Second step, the first step is connected into the first capsule completed, gas pumping pipe, the second capsule and is sent into drilling；
3rd step, the first grouting port is connected with the grouting pump outside drilling, and starts grouting pump；
4th step, start sealing slurries injecting the first capsule by grouting pump, after the first capsule fills, sealing slurries edge note
Starch pipe and inject the second capsule；
5th step, lasting injection sealing slurries, until the first capsule body, the second capsule body expand under sealing slurry pressure effect
And it is brought into close contact with the wall of a borehole；
6th step, continue injection sealing slurries, until the pressure for sealing slurries opens explosive valve so that sealing slurries injection envelope
Porose area；
7th step, after sealing slurries are filled into sealing of hole area, sealing slurries then ooze to the crack around drilling under pressure
Thoroughly, until crack fills sealing slurries；
8th step, after drilling surrounding crack fills sealing by sealing slurries, grouting pump is closed, stops the injection of sealing slurries.
Compared to the prior art the present invention has the advantages that.
First, the present invention is designed by the three-stage of a capsule, gas pumping pipe, the second capsule, dispenses tradition " two stifled one
The link of " stifled " in note " hole-sealing technology, simplifies process, while three sections are directly connected to and are formed further through connector
Sealing of hole sections, it is more convenient.
2nd, the present invention is simple in construction, and reasonable in design, easy to operate, cost is cheap, significant sealing affection, can effectively seal
Stifled drilling and its circumferential crack, improve gas pumping effect.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of the first capsule.
Fig. 3 is the structural representation of the second capsule.
Fig. 4 is the use state figure after the first capsule body, the second capsule volume expansion.
In figure, 1 is the first capsule, and 2 be gas pumping pipe, and 3 be the second capsule, and 4 be connector, and 5 be Grouting Pipe, and 6 be brill
Hole, 7 be grouting pump, and 8 be sealing slurries, and 9 be sealing of hole area, and 11 be the first plastic pipe, and 12 be the first capsule body, and 13 be explosion
Valve, 14 be the first grouting port, and 15 be grout outlet, and 31 be the second plastic pipe, and 32 be the second capsule body, and 33 be the second grouting port.
Embodiment
As Figure 1-Figure 4, the three-stage capsule sealing device of a kind of mash gas pumping drilling, including the first capsule 1, gas
Drainage tube 2, the second capsule 3 and connector 4；
The capsule 3 of first capsule 1 and second is connected to the both ends of gas pumping pipe 2 by connector 4 respectively；
First capsule 1 includes the first plastic pipe 11, the first capsule body 12 and explosive valve 13, first plastic pipe 11
Middle part is provided with groove, has the first capsule body 12, the connection of described one end of first capsule body 12 and groove in the outer wrap of groove
Junction of the place provided with the first grouting port 14, the other end and groove is provided with grout outlet 15 and explosive valve 13, and the first grouting port
14 and grout outlet 15 be respectively positioned on the top of explosive valve 13, while one end provided with the first grouting port 14 away from gas pumping pipe 2, set
There is one end of grout outlet 15 close to gas pumping pipe 2；
Second capsule 3 includes the second plastic pipe 31 and the second capsule body 32, and the middle part of the second plastic pipe 31 is provided with
Groove, there is the second capsule body 32 in the outer wrap of groove, the junction of described one end of second capsule body 32 and groove is provided with the
Two grouting ports 33, and one end provided with the second grouting port 33 is close to gas pumping pipe 2.
First grouting port 14, the second grouting port 33 and grout outlet 15 are can be with the fast grafting of pipeline rapid abutting joint
Mouthful.
First plastic pipe 11, the second plastic pipe 31 are made by high strength polyethylene material；
The capsule body 32 of first capsule body 12 and second is made by high resiliency, heat-resisting, ageing-resistant EP rubbers.
A kind of encapsulating method of the three-stage capsule sealing device of mash gas pumping drilling, is followed the steps below：First
Step, the first capsule 1, gas pumping pipe 2, the second capsule 3 are connected by connector 4, and by grout outlet 15 and second
Grouting port 33 is connected with Grouting Pipe 5；
Second step, the first step is connected into the first capsule 1 completed, gas pumping pipe 2, the second capsule 3 and is sent into drilling 6；
3rd step, the first grouting port 14 is connected with the grouting pump 7 outside drilling 6, and starts grouting pump 7；
4th step, start sealing slurries 8 injecting the first capsule 1 by grouting pump 7, after the first capsule 1 fills, seal slurries
8 inject the second capsule along Grouting Pipe 5；
5th step, lasting injection sealing slurries 8, until the first capsule body 12, the second capsule body 32 are in the sealing pressure of slurries 8 effect
Lower expansion is simultaneously brought into close contact with 6 walls of drilling；
6th step, continue injection sealing slurries 8, until the pressure for sealing slurries 8 opens explosive valve 13 so that sealing slurries 8
Inject sealing of hole area 9；
7th step, after sealing slurries 8 are filled into sealing of hole area 9, sealing slurries 8 are under pressure then to splitting around drilling 6
Gap is permeated, until crack fills sealing slurries 8；
8th step, after 6 surrounding cracks of drilling fill sealing by sealing slurries 8, grouting pump 7 is closed, stops the note of sealing slurries 8
Enter.
Above-described embodiment is the explanation to structure of the present invention and unrestricted, is made without departing from the principles of the present invention
Deformation is also within protection scope of the present invention.
Claims (4)
- A kind of 1. three-stage capsule sealing device of mash gas pumping drilling, it is characterised in that：Including the first capsule（1）, gas takes out Adopt pipe（2）, the second capsule（3）And connector（4）；First capsule（1）With the second capsule（3）Pass through connector respectively（4）It is connected to gas pumping pipe（2）Both ends；First capsule（1）Including the first plastic pipe（11）, the first capsule body（12）And explosive valve（13）, first modeling Expects pipe part（11）Middle part is provided with groove, has the first capsule body in the outer wrap of groove（12）, first capsule body（12）One End and the junction of groove are provided with the first grouting port（14）, the other end and groove junction be provided with grout outlet（15）And explosive valve （13）, and the first grouting port（14）And grout outlet（15）It is respectively positioned on explosive valve（13）Top, while be provided with the first grouting port （14）One end away from gas pumping pipe（2）, provided with grout outlet（15）One end close to gas pumping pipe（2）；Second capsule（3）Including the second plastic pipe（31）With the second capsule body（32）, second plastic pipe（31） Middle part is provided with groove, has the second capsule body in the outer wrap of groove（32）, second capsule body（32）One end and groove Junction is provided with the second grouting port（33）, and it is provided with the second grouting port（33）One end close to gas pumping pipe（2）.
- A kind of 2. three-stage capsule sealing device of mash gas pumping drilling according to claim 1, it is characterised in that：It is described First grouting port（14）, the second grouting port（33）And grout outlet（15）Being can be with the fast interface of pipeline rapid abutting joint.
- A kind of 3. three-stage capsule sealing device of mash gas pumping drilling according to claim 1 or 2, it is characterised in that： First plastic pipe（11）, the second plastic pipe（31）It is made by high strength polyethylene material；First capsule body（12）And second capsule body（32）By high resiliency, the making of heat-resisting, ageing-resistant EP rubbers Into.
- 4. a kind of encapsulating method of the three-stage capsule sealing device of mash gas pumping drilling according to claim 1, it is special Sign is to follow the steps below：The first step, by the first capsule（1）, gas pumping pipe（2）, the second capsule（3）Pass through connection Part（4）Connect, and by grout outlet（15）With the second grouting port（33）Use Grouting Pipe（5）Connection；Second step, the first step is connected to the first capsule completed（1）, gas pumping pipe（2）, the second capsule（3）It is sent into drilling （6）；3rd step, by the first grouting port（14）With drilling（6）Outside grouting pump（7）Connection, and start grouting pump（7）；4th step, passes through grouting pump（7）Start that slurries will be sealed（8）Inject the first capsule（1）, when the first capsule（1）After filling, Seal slurries（8）Along Grouting Pipe（5）Inject the second capsule；5th step, lasting injection sealing slurries（8）, until the first capsule body（12）, the second capsule body（32）In sealing slurries（8） The lower expansion of pressure effect and with drilling（6）Wall is brought into close contact；6th step, continue injection sealing slurries（8）, until sealing slurries（8）Pressure by explosive valve（13）Open so that sealing Slurries（8）Inject sealing of hole area（9）；7th step, slurries will be sealed（8）Fill sealing of hole area（9）Afterwards, slurries are sealed（8）Under pressure then to drilling（6） The crack infiltration of surrounding, until crack fills sealing slurries（8）；8th step, drilling（6）Surrounding crack is by sealing slurries（8）After filling sealing, grouting pump is closed（7）, stop sealing slurries （8）Injection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994671.8A CN107780873B (en) | 2017-10-23 | 2017-10-23 | Three-section type capsule sealing device for gas extraction drilling and sealing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710994671.8A CN107780873B (en) | 2017-10-23 | 2017-10-23 | Three-section type capsule sealing device for gas extraction drilling and sealing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107780873A true CN107780873A (en) | 2018-03-09 |
| CN107780873B CN107780873B (en) | 2023-11-28 |
Family
ID=61435057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710994671.8A Active CN107780873B (en) | 2017-10-23 | 2017-10-23 | Three-section type capsule sealing device for gas extraction drilling and sealing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107780873B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761734A (en) * | 2019-12-06 | 2020-02-07 | 山西潞安集团余吾煤业有限责任公司 | Sealing device and sealing method for drilling of high-gas soft coal seam |
| CN113187537A (en) * | 2021-05-31 | 2021-07-30 | 陕西陕煤铜川矿业有限公司 | Gas extraction drilling hole sealing device and method |
| CN117780298A (en) * | 2024-02-23 | 2024-03-29 | 太原理工大学 | Integrated hole sealing extraction device and method embedded with grouting channel and bag |
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2017
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| Title |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761734A (en) * | 2019-12-06 | 2020-02-07 | 山西潞安集团余吾煤业有限责任公司 | Sealing device and sealing method for drilling of high-gas soft coal seam |
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| CN113187537A (en) * | 2021-05-31 | 2021-07-30 | 陕西陕煤铜川矿业有限公司 | Gas extraction drilling hole sealing device and method |
| CN117780298A (en) * | 2024-02-23 | 2024-03-29 | 太原理工大学 | Integrated hole sealing extraction device and method embedded with grouting channel and bag |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107780873B (en) | 2023-11-28 |
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