CN105735939A - Drillings backfill bag-grouting hole-sealing device for gas drainage and usage thereof - Google Patents
Drillings backfill bag-grouting hole-sealing device for gas drainage and usage thereof Download PDFInfo
- Publication number
- CN105735939A CN105735939A CN201610276066.2A CN201610276066A CN105735939A CN 105735939 A CN105735939 A CN 105735939A CN 201610276066 A CN201610276066 A CN 201610276066A CN 105735939 A CN105735939 A CN 105735939A
- Authority
- CN
- China
- Prior art keywords
- pouch
- pipe
- hole
- grouting
- grouting 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.)
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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 relates to a drillings backfill bag-grouting hole-sealing device for gas drainage, comprising a grouting pipe, a drainage pipe and bags, a first hole, a second hole and a third hole are arranged in the grouting pipe sequentially from outside to inside, an explosion valve A and an explosion B are mounted respectively in the first hole and the second hole, explosion pressure of the explosion A is less than that of the explosion valve B, and a one-way valve is mounted in the third hole; materials are simple to obtain and can be obtained in situ; material cost and transport and storage cost are reduced; drillings or peat are kept entering the inner and out4er bags in a water filtering manner such that a slurry ratio of the drillings or peat and water has a wide applicable range, and work efficiency is improved.
Description
Technical field
The present invention relates to sealing of hole fixture fields, especially relate to a kind of mash gas extraction drilling cuttings backfill pouch slip casting type hole packer.
Background technology
Gas drainage under suction is currently to reduce one of coal-face gas density, the most effective measure implementing region protrusion-dispelling, gas drainage under suction effect, depends greatly on method for sealing and sealing quality.
The commonly used gas hole sealing device in current colliery mainly has polyurethane sealing aperture apparatus and cement mortar hole sealing device；For polyurethane sealing aperture apparatus, owing to polyurethane material anti-pressure ability is low, it is easy to cause sealing insecure, cause later stage gas drainage under suction concentration dramatic drop-off, sealing of hole failure；For cement mortar hole sealing device, its cement mortar uniaxial compressive strength is higher, and has certain mobility.But what cement mortar sealing of hole adopted is ordinary cement, owing to cement injects the solidification needing the long period in gas pumping hole, and due to the volume contraction that the reason such as variations in temperature, environmental drying easily causes in its process of setting, can cause to a certain extent and block unsuccessfully.
No matter polyurethane sealing of hole or cement mortar sealing of hole, cost is all higher, and also raw material transport and store all pretty troublesome, needing during use that rational proportion is installed and can be only achieved optimum efficiency, injection slurry thickness, moisture can not be too many, otherwise affects solidifiability and setting time.And, after adopting polyurethane sealing aperture apparatus and cement mortar sealing of hole, can remain in coal seam, increase exploitation difficulty, affect coal quality.
Summary of the invention
Adopting tradition hole sealing technology to there is the problem that cost is high and workload is big for current gas discharge in mine process, the present invention provides one to gather materials on the spot, rapid shaping, blocks firmly hole sealing device and method.
The concrete technical scheme that the present invention adopts to reach technical purpose is: a kind of mash gas extraction drilling cuttings backfill pouch slip casting type hole packer, including Grouting Pipe, releasing pipe and pouch, Grouting Pipe is from setting gradually a hole, No. two holes and No. three holes outside to inside, a hole and No. two holes are separately installed with explosive valve first and explosive valve second, explosive valve first burst pressure, less than explosive valve second, is provided with check valve on No. three holes；It is enclosed with pouch first at a hole outer side seal, outside No. three holes, is enclosed with pouch second；Grouting Pipe outer end connects grouting pump；Releasing pipe is through pouch first and pouch second, and releasing pipe outer end is connected with drainage system；Releasing pipe is positioned at No. two hole sites and has been arranged around one section of section of drawing water, and is enclosed with filter cloth first outside it；Releasing pipe is positioned at No. three hole sites and has been arranged around another section section of drawing water, and it is wrapped with filter cloth second；Described filter cloth first is between pouch first and pouch second, and described filter cloth second is positioned at inside pouch second.
Pouch is canvas bag or is rubber bag, and pouch correspondence Grouting Pipe and releasing pipe outer wall are provided with sealing mechanism；The slurry that grouting pump fills is the mixture of drilling cuttings, coal dust or mud coal and water；It is added with binding agent in described slurry；The described section of drawing water is be arranged on the filter opening of releasing pipe outer wall；Releasing pipe is positioned at a hole site and has been arranged around one section of section of drawing water, and is enclosed with filter cloth third outside it.
A kind of mash gas extraction drilling cuttings backfills pouch slip casting type method for sealing, comprises the steps, is not intended to step sequencing:
Step 1: outer position sealed envelope pouch first, inner position seals parcel pouch second outside same Grouting Pipe；Or, difference sealed envelope pouch first and pouch second outside two Grouting Pipe, keep pouch first to be positioned at outside pouch second.
Step 2: utilize grouting pump to be pressed in Grouting Pipe by the mixed liquor of drilling cuttings with water or mud coal and water；
Step 3: Grouting Pipe is positioned at the grout outlet of pouch first and installs explosive valve first, and the grout outlet in Grouting Pipe region between pouch first and second installs explosive valve second, and Grouting Pipe is positioned at the grout outlet of pouch second and is provided with check valve；Explosive valve first burst pressure is less than explosive valve second, thus discharging the sequencing of mixed liquor from Grouting Pipe is region between pouch second, pouch first and pouch first and second；
Step 4: releasing pipe outer end connects drainage system, and bore inner is goed deep in the inner, is discharged by large quantity of moisture in mixed liquor by means of releasing pipe；The one section of design being positioned at pouch second by releasing pipe has suction eye and is enclosed with filter cloth second, by releasing pipe between pouch first and second one section of region be also configured with suction eye and be enclosed with filter cloth first.
Preferably, in the mixed liquor in step 2, a small amount of binding agent is added.
The Advantageous Effects of the present invention is: 1, draw materials very simple, it is achieved gather materials on the spot.Reduce material cost and shipping storage cost.2, the mode passing through drainage keeps drilling cuttings or mud coal to enter in inside and outside pouch, so the grout coordinate ratio of drilling cuttings or mud coal and water is suitable for scope very greatly, improves work efficiency.3, moisture is drained under pressure, need not consider the setting time such as cement material.4, slurry can also be added as needed on binding agent, improve plugging effect.
Accompanying drawing explanation
Accompanying drawing 1 is this apparatus structure sketch；
Accompanying drawing 2 adds grout material in the use procedure of this device in pouch second；
Accompanying drawing 3 adds grout material in the use procedure of this device in pouch first；
Accompanying drawing 4 has blocked rear structure diagram for this device；
Accompanying drawing 5 is positioned at a hole for releasing pipe and is arranged around the structure diagram of the section of drawing water；
Accompanying drawing 6 is filter cloth first place partial enlarged drawing in accompanying drawing 1.
Figure 1 is Grouting Pipe, 2 be releasing pipe, 3 for pouch first, 4 for explosive valve first, 5 for filter cloth first, 6 be filter opening, 7 be explosive valve second, 8 be pouch second, 9 be check valve, 10 be slurry, 11 be gas pumping hole hole wall, 12 be filter cloth second, 13 for filter cloth third.
Detailed description of the invention
1 one kinds of mash gas extractions of embodiment drilling cuttings backfills pouch slip casting type hole packer, referring to Fig. 1: include Grouting Pipe, releasing pipe and pouch, Grouting Pipe is from setting gradually a hole, No. two holes and No. three holes outside to inside, a hole and No. two holes are separately installed with explosive valve first and explosive valve second, explosive valve first burst pressure, less than explosive valve second, is provided with check valve on No. three holes；It is enclosed with pouch first at a hole outer side seal, outside No. three holes, is enclosed with pouch second；Grouting Pipe outer end connects grouting pump；Releasing pipe is through pouch first and pouch second, and releasing pipe outer end is connected with drainage system；Releasing pipe is positioned at No. two hole sites and has been arranged around one section of section of drawing water, and is enclosed with filter cloth first outside it；Releasing pipe is positioned at No. three hole sites and has been arranged around another section section of drawing water, and it is wrapped with filter cloth second；Described filter cloth first is between pouch first and pouch second, and described filter cloth second is positioned at inside pouch second.
Pouch is canvas bag or is rubber bag, and pouch correspondence Grouting Pipe and releasing pipe outer wall are provided with sealing mechanism；The slurry that grouting pump fills is the mixture of drilling cuttings, coal dust or mud coal and water；It is added with binding agent in described slurry；The described section of drawing water is be arranged on the filter opening of releasing pipe outer wall.
Releasing pipe is positioned at a hole site and has been arranged around one section of section of drawing water, and is enclosed with filter cloth third, referring to Fig. 5 outside it
This device is drawn materials very simple, it is achieved gather materials on the spot.Reduce material cost and shipping storage cost.Keep drilling cuttings or mud coal to enter in inside and outside pouch by crossing the mode of drainage, so the grout coordinate ratio of drilling cuttings or mud coal and water is suitable for scope very greatly, improve work efficiency.Moisture is drained under pressure, need not consider the setting time such as cement material.Slurry can also be added as needed on binding agent, improve plugging effect；In figure, double-head arrow is that slurry flows to, and single arrow is that moisture flows to.
The present embodiment is specifically described by embodiment 2 referring to Fig. 5.
The present embodiment is substantially the same manner as Example 1, is different in that: releasing pipe is positioned at a hole site and has been arranged around one section of section of drawing water, and is enclosed with filter cloth third outside it.
3 one kinds of mash gas extractions of embodiment drilling cuttings backfills pouch slip casting type method for sealing, referring to Fig. 1-5:
Comprise the steps, be not intended to step sequencing:
Step 1: outer position sealed envelope pouch first, inner position seals parcel pouch second outside same Grouting Pipe；Or, difference sealed envelope pouch first and pouch second outside two Grouting Pipe, keep pouch first to be positioned at outside pouch second.
Step 2: utilize grouting pump to be pressed in Grouting Pipe by the mixed liquor of drilling cuttings with water or mud coal and water；
Step 3: Grouting Pipe is positioned at the grout outlet of pouch first and installs explosive valve first, and the grout outlet in Grouting Pipe region between pouch first and second installs explosive valve second, and Grouting Pipe is positioned at the grout outlet of pouch second and is provided with check valve；Explosive valve first burst pressure is less than explosive valve second, thus discharging the sequencing of mixed liquor from Grouting Pipe is region between pouch second, pouch first and pouch first and second；
Step 4: releasing pipe outer end connects drainage system, and bore inner is goed deep in the inner, is discharged by large quantity of moisture in mixed liquor by means of releasing pipe；The one section of design being positioned at pouch second by releasing pipe has suction eye and is enclosed with filter cloth second, by releasing pipe between pouch first and second one section of region be also configured with suction eye and be enclosed with filter cloth first.
Preferably, in the mixed liquor in step 2, a small amount of binding agent is added.
Claims (7)
1. a mash gas extraction drilling cuttings backfills pouch slip casting type hole packer, including Grouting Pipe, releasing pipe and pouch, it is characterized in that, Grouting Pipe is from setting gradually a hole, No. two holes and No. three holes outside to inside, a hole and No. two holes are separately installed with explosive valve first and explosive valve second, explosive valve first burst pressure, less than explosive valve second, is provided with check valve on No. three holes；It is enclosed with pouch first at a hole outer side seal, outside No. three holes, is enclosed with pouch second；Grouting Pipe outer end connects grouting pump；Releasing pipe is through pouch first and pouch second, and releasing pipe outer end is connected with drainage system；Releasing pipe is positioned at No. two hole sites and has been arranged around one section of section of drawing water, and is enclosed with filter cloth first outside it；Releasing pipe is positioned at No. three hole sites and has been arranged around another section section of drawing water, and it is wrapped with filter cloth second；Described filter cloth first is between pouch first and pouch second, and described filter cloth second is positioned at inside pouch second.
2. mash gas extraction drilling cuttings according to claim 1 backfill pouch slip casting type hole packer, it is characterised in that pouch is canvas bag, and pouch correspondence Grouting Pipe and releasing pipe outer wall are provided with sealing mechanism.
3. mash gas extraction drilling cuttings according to claim 1 backfill pouch slip casting type hole packer, it is characterised in that the slurry that grouting pump fills is the mixture of drilling cuttings, coal dust or mud coal and water.
4. mash gas extraction drilling cuttings according to claim 3 backfill pouch slip casting type hole packer, it is characterised in that be added with binding agent in described slurry.
5. mash gas extraction drilling cuttings according to claim 1 backfill pouch slip casting type hole packer, it is characterised in that releasing pipe is positioned at a hole site and has been arranged around one section of section of drawing water, and is enclosed with filter cloth third outside it.
6. a mash gas extraction drilling cuttings backfills pouch slip casting type method for sealing, it is characterised in that comprises the steps, is not intended to step sequencing:
Step 1: outer position sealed envelope pouch first, inner position seals parcel pouch second outside same Grouting Pipe；Or, difference sealed envelope pouch first and pouch second outside two Grouting Pipe, keep pouch first to be positioned at outside pouch second；
Step 2: utilize grouting pump to be pressed in Grouting Pipe by the mixed liquor of drilling cuttings with water or mud coal and water；
Step 3: Grouting Pipe is positioned at the grout outlet of pouch first and installs explosive valve first, and the grout outlet in Grouting Pipe region between pouch first and second installs explosive valve second, and Grouting Pipe is positioned at the grout outlet of pouch second and is provided with check valve；Explosive valve first burst pressure is less than explosive valve second, thus discharging the sequencing of mixed liquor from Grouting Pipe is region between pouch second, pouch first and pouch first and second；
Step 4: releasing pipe outer end connects drainage system, and bore inner is goed deep in the inner, is discharged by large quantity of moisture in mixed liquor by means of releasing pipe；The one section of design being positioned at pouch second by releasing pipe has suction eye and is enclosed with filter cloth second, by releasing pipe between pouch first and second one section of region be also configured with suction eye and be enclosed with filter cloth first.
7. the using method of mash gas extraction drilling cuttings according to claim 5 backfill pouch slip casting type hole packer, it is characterised in that add a small amount of binding agent in the mixed liquor in step 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276066.2A CN105735939B (en) | 2016-04-29 | 2016-04-29 | Mash gas extraction backfills pouch slip casting type hole packer and application method with drilling cuttings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610276066.2A CN105735939B (en) | 2016-04-29 | 2016-04-29 | Mash gas extraction backfills pouch slip casting type hole packer and application method with drilling cuttings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105735939A true CN105735939A (en) | 2016-07-06 |
| CN105735939B CN105735939B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610276066.2A Expired - Fee Related CN105735939B (en) | 2016-04-29 | 2016-04-29 | Mash gas extraction backfills pouch slip casting type hole packer and application method with drilling cuttings |
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| Country | Link |
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| CN (1) | CN105735939B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162703A (en) * | 2018-10-16 | 2019-01-08 | 华北科技学院 | A kind of soft suitable coal bed drilling multistage on-line pressure sealant pressure measuring unit of overlength and method |
| CN110284849A (en) * | 2019-07-30 | 2019-09-27 | 重庆市能源投资集团科技有限责任公司 | A kind of hole sealing device and method for sealing with pressure for the nearly horizontal fractures drilling of coal mine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU737667B3 (en) * | 2001-02-28 | 2001-08-30 | Industrial Innovations & Concepts Pty Ltd | Packer assembly and associated downhole tool and wireline grouting system |
| CN203081397U (en) * | 2013-05-14 | 2013-07-24 | 平顶山市安泰华矿用安全设备制造有限公司 | Grouting bag type hole packer |
| CN203515460U (en) * | 2013-09-24 | 2014-04-02 | 平顶山市安泰华矿用安全设备制造有限公司 | Instant adhering type grouting bag pocket type hole sealing device |
| CN104343415A (en) * | 2014-10-20 | 2015-02-11 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilling hole injection expanding type bag hole sealing device |
| CN104479650A (en) * | 2014-11-17 | 2015-04-01 | 宿州市金鼎安全技术服务有限公司 | Mine use hole packer hole packing material |
| CN205743827U (en) * | 2016-04-29 | 2016-11-30 | 河南理工大学 | Mash gas extraction drilling cuttings backfills pouch slip casting type hole packer |
-
2016
- 2016-04-29 CN CN201610276066.2A patent/CN105735939B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU737667B3 (en) * | 2001-02-28 | 2001-08-30 | Industrial Innovations & Concepts Pty Ltd | Packer assembly and associated downhole tool and wireline grouting system |
| CN203081397U (en) * | 2013-05-14 | 2013-07-24 | 平顶山市安泰华矿用安全设备制造有限公司 | Grouting bag type hole packer |
| CN203515460U (en) * | 2013-09-24 | 2014-04-02 | 平顶山市安泰华矿用安全设备制造有限公司 | Instant adhering type grouting bag pocket type hole sealing device |
| CN104343415A (en) * | 2014-10-20 | 2015-02-11 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilling hole injection expanding type bag hole sealing device |
| CN104479650A (en) * | 2014-11-17 | 2015-04-01 | 宿州市金鼎安全技术服务有限公司 | Mine use hole packer hole packing material |
| CN205743827U (en) * | 2016-04-29 | 2016-11-30 | 河南理工大学 | Mash gas extraction drilling cuttings backfills pouch slip casting type hole packer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162703A (en) * | 2018-10-16 | 2019-01-08 | 华北科技学院 | A kind of soft suitable coal bed drilling multistage on-line pressure sealant pressure measuring unit of overlength and method |
| CN110284849A (en) * | 2019-07-30 | 2019-09-27 | 重庆市能源投资集团科技有限责任公司 | A kind of hole sealing device and method for sealing with pressure for the nearly horizontal fractures drilling of coal mine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105735939B (en) | 2018-08-17 |
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| CB03 | Change of inventor or designer information |
Inventor after: Li Hui Inventor after: Guo Chengwei Inventor after: Wei Jianping Inventor before: Li Hui Inventor before: Wei Jianping |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |