CN105804691A - Pipe-free hole sealing method for mining gas extraction drill hole - Google Patents
Pipe-free hole sealing method for mining gas extraction drill hole Download PDFInfo
- Publication number
- CN105804691A CN105804691A CN201610184558.9A CN201610184558A CN105804691A CN 105804691 A CN105804691 A CN 105804691A CN 201610184558 A CN201610184558 A CN 201610184558A CN 105804691 A CN105804691 A CN 105804691A
- Authority
- CN
- China
- Prior art keywords
- sealing
- hole
- pipe
- cylindrical water
- capsule
- 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
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
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
Abstract
The invention provides a pipe-free hole sealing method for a mining gas extraction drill hole. The pipe-free hole sealing method is suitable for sealing of a gas extraction drill hole underground a coal mine. The pipe-free hole sealing method comprises the steps that firstly, coal slag in the drill hole is completely removed through a hole cleaning shovel, a cylindrical water bag is filled with water, then hole sealing capsules are bound and fixed to the two ends of the cylindrical water bag, and the whole device is fed into the drill hole; secondly, grout is injected into the hole sealing capsules through a grouting pipe, an explosion valve on the grouting pipe is opened after the capsules at the two ends are filled with the grout, and the grout is injected into the drill hole, so that sealing of the gas extraction drill hole is achieved; and after the grout is solidified and formed, the water in the cylindrical water bag is discharged, the cylindrical water bag is taken out for use next time, and then a hole sealing pipe connected with an extraction pipe is installed at an orifice of the formed extraction drill hole. By the adoption of the pipe-free hole sealing method, pipe-free sealing of the gas extraction drill hole can be achieved, the situation that a large number of hole sealing pipes are used is avoided, the hole sealing pipe can be shortened by 10-12 m for each drill hole, and the cost can be reduced by 150-200 yuan; and the pipe-free hole sealing method has extremely high proportional value.
Description
Technical field
The present invention relates to a kind of gas in mine mash gas pumping drilling without pipe method for sealing, be particularly suited for the gas gas of underground coal mine
Extraction borehole and sealing of hole.
Background technology
Hole sealing technology is an important technology in coal bed methane extraction boring, and existing hole sealing technology all to use substantial amounts of envelope
Kong Guan, general sealed borehole length is 10-12 rice, and required hole sealing tube is then 11-13 rice.Valency according to hole sealing tube general on market
The calculation of price of lattice 15 yuan/meter, the hole sealing tube expense of each boring is 165-195 unit.The sealing of hole enormous amount that the whole nation is annual, because of
This cost on hole sealing tube is the hugest.But during sealing of hole, the hole sealing tube of sealing of hole section simply plays support sealing of hole material
The effect of material, only holes and acts the effect connecting extraction main pipe rail with the hole sealing tube of outer portion.After sealing material condenses molding,
Hole sealing tube is just without practical function.Therefore, in the urgent need to a kind of economical and practical novel method for sealing, replace hole sealing tube.
Summary of the invention
Technical problem: the invention aims to overcome weak point of the prior art, it is provided that a kind of method is simple, operation side
Just gas mash gas pumping drilling, with low cost is without pipe method for sealing.
Technical scheme: for achieving the above object, the gas in mine extraction borehole of the present invention, without pipe method for sealing, comprises the steps:
A. use cylindrical water pocket bag, after filling water expansion in cylindrical water pocket bag, use in the left and right sides of cylindrical water pocket bag
Sealing of hole capsule a bundle is strapped fixed, fixes Grouting Pipe, position in the lower section of cylindrical water pocket bag while determining with sealing of hole capsule a bundle is strapped
It is equipped with check valve, between left and right sides sealing of hole capsule one in the Grouting Pipe of sealing of hole capsule one position of the left and right sides
Grouting Pipe is provided with explosive valve, fixes slurry recovering tube, send into afterwards and execute at the upper right sealing of hole capsule one of cylindrical water pocket bag
In the boring that work is good, the sealing of hole capsule one side in left side is inside boring, and the sealing of hole capsule one side on right side is outside boring；
B. by Grouting Pipe slip casting in the sealing of hole capsule one of check valve both sides to the left and right, after treating that sealing of hole capsule one fills serosity,
Continuing slip casting, when pressure reaches 2MPa, produced pressure makes explosive valve open, and at this moment serosity initially enters the left and right sides
Sealing of hole capsule one between hole section in；
C. wait upon slurry recovering tube and flow out serosity, after filling serosity in the section of hole, stop slip casting；
D., after institute's injection slurry consolidation molding, release the water in cylindrical water pocket bag, take out cylindrical water pocket bag, complete gas and take out
Borehole, the cylindrical water pocket bag of taking-up is available for sealing of hole next time and uses；
E., the hole sealing tube that front portion is bundled with sealing of hole capsule two sends into the porch of mash gas pumping drilling, uses Grouting Pipe to hole sealing glue
Slip casting in capsule two, completes the sealing of hole of mash gas pumping drilling, after sealing of hole serosity condenses, is connected with gas drainage under suction pipe network by hole sealing tube.
The 1/2～2/3 of a diameter of construction drill diameter of described cylindrical water pocket bag, sealed borehole length is 10～12m.
The distance drilling orifice position, sealing of hole capsule one outer face on described right side is 1～2m.
Beneficial effect: the present invention is directed to current hole sealing tube usage amount big, the present situation that hole sealing tube cost is high, it is proposed that without pipe sealing of hole
Method；Use cylindrical water pocket bag to replace the hole sealing tube in original method for sealing, play original sealing of hole side by cylindrical water pocket bag
In method, hole sealing tube supports the effect of sealing material.By Grouting Pipe slip casting in capsule, after filling condensation, hole sealing tube is total with extraction
Pipeline connects, and after sealing of hole has worked, can be reclaimed by cylindrical water pocket bag, recycling, save substantial amounts of hole sealing tube.Each
Boring reduces use releasing pipe 10-12 rice, and single hole cost can save fund 150-200 unit.Greatly reduce sealing of hole cost,
There is fabulous application value.Its method is simple, and easy to operate, using effect is good, has wide applicability.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram of the present invention.
Fig. 2 is the boring layout schematic diagram with extraction main pipe rail of the present invention.
In figure: 1-sealing of hole capsule one, 2-slurry recovering tube, 3-Grouting Pipe, 4-cylinder water pocket bag, 5-water injection pipe, 6-discharging valve, 7-
Check valve, 8-explosive valve, 9-hole section, 10-hole sealing tube, 11-Grouting Pipe, 12-mash gas pumping drilling, 13-sealing of hole capsule two.
Detailed description of the invention
The invention will be further described for embodiment in below in conjunction with the accompanying drawings:
The gas in mine extraction borehole of the present invention, without pipe method for sealing, specifically comprises the following steps that
First, before sealing of hole first with draw hole shovel complete to need the cinder in the boring of sealing of hole section to clean out by construction；Use
Cylindrical water pocket bag 4, fills water by the water injection pipe 5 being located on cylindrical water pocket bag 4 so that it is expand and produce in water pocket bag
Intensity, closes the water check valve 6 on water injection pipe 5 after water filling.Subsequently at the left and right sides hole sealing glue of cylindrical water pocket bag 4
Capsule 1 binding is fixing, and while fixing with sealing of hole capsule 1 binding, Grouting Pipe 3 is fixed in the lower section at cylindrical water pocket bag 4,
It is equipped with check valve 7 in the Grouting Pipe 3 of sealing of hole capsule 1 position being positioned at the left and right sides, is positioned at left and right sides sealing of hole capsule
Grouting Pipe 3 between one 1 is provided with explosive valve 8, fixes and return at the upper right sealing of hole capsule 1 of cylindrical water pocket bag 4
Slurry pipe 2, send in the boring constructed afterwards, the sealing of hole capsule 1 in left side towards boring inside, the sealing of hole capsule on right side
1 towards boring outside；The 1/2～2/3 of a diameter of construction drill diameter of described cylindrical water pocket bag 4, sealed borehole length be 10～
12m；The distance drilling orifice position, sealing of hole capsule 1 outer face on described right side is 1～2m；
B. by Grouting Pipe 3 slip casting in the sealing of hole capsule 1 of check valve 7 both sides to the left and right, slip casting total time it is about 15 points
Clock.Institute's injection slurry uses the mining sealing material of PD, is 1:1:4 with the proportioning of water, in capsule during slip casting, due to check valve
The effect of 7, serosity can only flow in sealing of hole capsule, and can not flow out；After treating that sealing of hole capsule 1 fills serosity, continue note
Slurry, when pressure reaches 2MPa, continues pressure produced by slip casting and makes explosive valve 8 open, and at this moment serosity initially enters left and right
In hole section 9 between the sealing of hole capsule 1 of both sides；
C. after slurry recovering tube 2 flows out serosity, in boring is described, slip casting completes, and stops slip casting after filling serosity in hole section 9；
D., after institute's injection slurry consolidation molding, open the water check valve 6 on water injection pipe 5, release the water in cylindrical water pocket bag 4,
Taking out cylindrical water pocket bag, complete mash gas pumping drilling 12, the cylindrical water pocket bag of taking-up is available for sealing of hole next time and uses；
E., the hole sealing tube 10 that front portion is bundled with sealing of hole capsule 2 13 sends into the porch of the mash gas pumping drilling 12 that slip casting completes,
Whole sealing of hole capsule 2 13 is made to be fully located in boring, sealing of hole capsule 2 13 outer lateral extent drilling orifice about 20cm.Described
The width of sealing of hole capsule 2 13 is 0.5m, described hole sealing tube 10 and a length of 0.8～1.5m.By Grouting Pipe 11 to hole sealing glue
Slip casting in capsule 2 13, completes the sealing of hole of mash gas pumping drilling after filling condensation, be connected with gas drainage under suction pipe network by hole sealing tube 10.
Claims (3)
1. a gas in mine extraction borehole is without pipe method for sealing, it is characterised in that comprise the steps:
A. cylindrical water pocket bag (4) is used, after filling water expansion in cylindrical water pocket bag (4), on a left side for cylindrical water pocket bag (4)
Sealing of hole capsule one (1) binding of right both sides is fixing, in the lower section of cylindrical water pocket bag (4) while fixing with sealing of hole capsule one (1) binding
Fixing Grouting Pipe (3), the Grouting Pipe (3) of sealing of hole capsule one (1) position being positioned at the left and right sides is equipped with check valve (7), position
Grouting Pipe (3) between left and right sides sealing of hole capsule one (1) is provided with explosive valve (8), right in the top of cylindrical water pocket bag (4)
Slurry recovering tube (2) is fixed at side seal hole capsule one (1) place, sends in the boring constructed afterwards, sealing of hole capsule one (1) face in left side
To boring inside, the sealing of hole capsule one (1) on right side towards boring outside；
B. by Grouting Pipe (3) slip casting in the sealing of hole capsule one (1) of check valve (7) both sides to the left and right, sealing of hole capsule one is treated
(1) after filling serosity, continuing slip casting, when pressure reaches 2MPa, pressure makes explosive valve (8) open, at this moment serosity
Initially enter in the hole section (9) between the sealing of hole capsule one (1) of the left and right sides；
C. wait upon slurry recovering tube (2) and flow out serosity, after filling serosity in hole section (9), stop slip casting；
D., after institute's injection slurry consolidation molding, release the water in cylindrical water pocket bag (4), take out cylindrical water pocket bag (4),
Completing mash gas pumping drilling (12), the cylindrical water pocket bag of taking-up is available for sealing of hole next time and uses；
E., the hole sealing tube (10) that front portion is bundled with sealing of hole capsule two (13) sends into the porch of mash gas pumping drilling (12),
Use Grouting Pipe (11) slip casting in sealing of hole capsule two (13), complete the sealing of hole of mash gas pumping drilling, treat that sealing of hole serosity condenses
After, hole sealing tube (10) is connected with gas drainage under suction pipe network.
Gas in mine extraction borehole the most according to claim 1 is without pipe method for sealing, it is characterised in that: described cylindrical water
The 1/2～2/3 of a diameter of construction drill diameter of pouch (4), sealed borehole length is 10～12m.
Gas in mine extraction borehole the most according to claim 1 is without pipe method for sealing, it is characterised in that: the envelope on described right side
Distance drilling orifice position, hole capsule one (1) outer face is 1～2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184558.9A CN105804691B (en) | 2016-03-28 | 2016-03-28 | A kind of gas in mine mash gas pumping drilling is without pipe method for sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610184558.9A CN105804691B (en) | 2016-03-28 | 2016-03-28 | A kind of gas in mine mash gas pumping drilling is without pipe method for sealing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105804691A true CN105804691A (en) | 2016-07-27 |
| CN105804691B CN105804691B (en) | 2018-08-31 |
Family
ID=56454041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610184558.9A Expired - Fee Related CN105804691B (en) | 2016-03-28 | 2016-03-28 | A kind of gas in mine mash gas pumping drilling is without pipe method for sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105804691B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780873A (en) * | 2017-10-23 | 2018-03-09 | 山西潞安矿业(集团)有限责任公司 | The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling |
| CN109372462A (en) * | 2018-12-11 | 2019-02-22 | 阳泉惠通机械制造有限公司 | A kind of capsule hole |
| CN111472834A (en) * | 2020-06-10 | 2020-07-31 | 徐州工程学院 | Method for preventing upward gas extraction borehole from collapsing at fixed point |
| CN113605961A (en) * | 2021-08-12 | 2021-11-05 | 煤炭科学技术研究院有限公司 | Coal mine underground gas injection, displacement, injection and extraction dual-purpose recyclable hole sealing device and method |
| CN114542151A (en) * | 2022-01-12 | 2022-05-27 | 中南大学 | Coal face gas extraction and roof treatment method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687060A (en) * | 1986-06-13 | 1987-08-18 | Methane Drainage Ventures | Production and grout liner for methane drainage in subterranean boreholes and method |
| CN1635225A (en) * | 2003-12-27 | 2005-07-06 | 江俊昇 | Construction cavities forming method and object containing cavities fabricated thereby |
| CN201723195U (en) * | 2010-05-26 | 2011-01-26 | 义马煤业集团股份有限公司千秋煤矿 | Fool-type gas drainage hole sealing device |
| CN103334714A (en) * | 2013-07-23 | 2013-10-02 | 蔡长辉 | Bag device for quickly sealing holes |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
| CN203712861U (en) * | 2014-02-21 | 2014-07-16 | 董旭恒 | Flexible water bag type inner hole mold |
| CN203962028U (en) * | 2014-07-25 | 2014-11-26 | 淮北市中安矿机设备有限公司 | A kind of two pouch rapid hole sealing device |
| CN204627530U (en) * | 2015-05-04 | 2015-09-09 | 徐州博安科技发展有限责任公司 | Bellows rapid hole packer |
| CN204827354U (en) * | 2015-08-10 | 2015-12-02 | 中国矿业大学 | Built -in slip casting hole sealing device |
-
2016
- 2016-03-28 CN CN201610184558.9A patent/CN105804691B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4687060A (en) * | 1986-06-13 | 1987-08-18 | Methane Drainage Ventures | Production and grout liner for methane drainage in subterranean boreholes and method |
| CN1635225A (en) * | 2003-12-27 | 2005-07-06 | 江俊昇 | Construction cavities forming method and object containing cavities fabricated thereby |
| CN201723195U (en) * | 2010-05-26 | 2011-01-26 | 义马煤业集团股份有限公司千秋煤矿 | Fool-type gas drainage hole sealing device |
| CN103334714A (en) * | 2013-07-23 | 2013-10-02 | 蔡长辉 | Bag device for quickly sealing holes |
| CN103590782A (en) * | 2013-11-28 | 2014-02-19 | 华北科技学院 | Under-pressure grouting hole sealing device and method for gas extraction drill air bag blocking |
| CN203712861U (en) * | 2014-02-21 | 2014-07-16 | 董旭恒 | Flexible water bag type inner hole mold |
| CN203962028U (en) * | 2014-07-25 | 2014-11-26 | 淮北市中安矿机设备有限公司 | A kind of two pouch rapid hole sealing device |
| CN204627530U (en) * | 2015-05-04 | 2015-09-09 | 徐州博安科技发展有限责任公司 | Bellows rapid hole packer |
| CN204827354U (en) * | 2015-08-10 | 2015-12-02 | 中国矿业大学 | Built -in slip casting hole sealing device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780873A (en) * | 2017-10-23 | 2018-03-09 | 山西潞安矿业(集团)有限责任公司 | The three-stage capsule sealing device and its encapsulating method of a kind of mash gas pumping drilling |
| CN107780873B (en) * | 2017-10-23 | 2023-11-28 | 山西潞安矿业(集团)有限责任公司 | Three-section type capsule sealing device for gas extraction drilling and sealing method thereof |
| CN109372462A (en) * | 2018-12-11 | 2019-02-22 | 阳泉惠通机械制造有限公司 | A kind of capsule hole |
| CN111472834A (en) * | 2020-06-10 | 2020-07-31 | 徐州工程学院 | Method for preventing upward gas extraction borehole from collapsing at fixed point |
| CN111472834B (en) * | 2020-06-10 | 2021-11-09 | 徐州工程学院 | Method for preventing upward gas extraction borehole from collapsing at fixed point |
| CN113605961A (en) * | 2021-08-12 | 2021-11-05 | 煤炭科学技术研究院有限公司 | Coal mine underground gas injection, displacement, injection and extraction dual-purpose recyclable hole sealing device and method |
| CN113605961B (en) * | 2021-08-12 | 2023-07-14 | 煤炭科学技术研究院有限公司 | Underground coal mine gas injection displacement injection and extraction dual-purpose recoverable hole sealing device and method |
| CN114542151A (en) * | 2022-01-12 | 2022-05-27 | 中南大学 | Coal face gas extraction and roof treatment method |
| CN114542151B (en) * | 2022-01-12 | 2022-11-11 | 中南大学 | Coal face gas extraction and roof treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105804691B (en) | 2018-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105804691A (en) | Pipe-free hole sealing method for mining gas extraction drill hole | |
| CN106703871B (en) | A kind of method of high pressure water injection prevention and treatment gas and coal dust | |
| CN102704984B (en) | Borehole high-concentration gas extraction and drainage method and device thereof | |
| CN105240048B (en) | A kind of gas filling method based on paste body filling | |
| CN208184704U (en) | A kind of pouch slip casting type gas drainage survey press seal aperture apparatus | |
| CN104314508A (en) | Hole sealing method for coal bed gas drainage drill hole | |
| CN102977869B (en) | Underground high-pressure hydraulic fracturing hole sealing material for coal mine and hole sealing technology | |
| CN202250166U (en) | Secondary high-pressure grouting hole packer | |
| CN107476794A (en) | A kind of method that high temperature nitrogen increase coal body gas permeability is noted after liquid nitrogen gasification circulation | |
| CN204984343U (en) | Split combined type bag hole sealing device | |
| CN209670939U (en) | A kind of coal mine gas extraction drill hole long range multi-stage cementing hole packer | |
| CN108086945A (en) | A kind of layer-through drilling separate type whole process gas drainage hole sealing device and its method for sealing | |
| CN101463718A (en) | Same-well production technique column for low-permeation horizontal well | |
| CN102937011A (en) | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group | |
| CN108678721A (en) | Packaged type hydraulic fracturing and injection hole sealing integrated apparatus and its construction method | |
| CN101915086B (en) | Coal mine underground gas borehole fracturing method | |
| CN208534448U (en) | A kind of mash gas pumping drilling hole sealing device | |
| CN106930724A (en) | One kind is rich in water borehole sealing and gas pumping integral method | |
| CN201144680Y (en) | Heavy crude layer separation and selective gas injection integrated pipe column | |
| CN103470212A (en) | Device and method for active hole drilling and sealing | |
| CN103883276A (en) | Simple, economic and efficient coal seam gas drainage drilling hole sealing method | |
| CN109322638A (en) | A kind of gas drainage-water filling integration grouting with pressure hole sealing device and method | |
| CN108756804A (en) | Mash gas pumping drilling hole sealing device | |
| CN208456572U (en) | Packaged type hydraulic fracturing and injection hole sealing integrated apparatus | |
| CN107605484A (en) | A kind of liquid nitrogen freezing formula coal uncovering method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20190328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |