CN110173295A - A method of utilizing concordant directional drilling mash gas extraction and fire extinguishing - Google Patents
A method of utilizing concordant directional drilling mash gas extraction and fire extinguishing Download PDFInfo
- Publication number
- CN110173295A CN110173295A CN201910632444.XA CN201910632444A CN110173295A CN 110173295 A CN110173295 A CN 110173295A CN 201910632444 A CN201910632444 A CN 201910632444A CN 110173295 A CN110173295 A CN 110173295A
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- Prior art keywords
- directional drilling
- concordant
- fire extinguishing
- concordant directional
- goaf
- Prior art date
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- 238000005553 drilling Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000000605 extraction Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 11
- 230000002269 spontaneous effect Effects 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000004079 fireproofing Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 21
- 238000010276 construction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
Disclosed by the invention is a kind of method using concordant directional drilling mash gas extraction and fire extinguishing, belongs to the compound diaster prevention and control method of coal mine.Drill site is dug in the intake of stope and return aircourse, then in drill site respectively into the coal seam on the outside of intake and return aircourse construct concordant directional drilling, and it is pierced by coal wall of the concordant directional drilling on the outside of intake and return aircourse, gas drainage and fire extinguishing work in goaf: first stage are carried out then according to the next stage, the concordant directional drilling in drill site is successively utilized in stope recovery process, gas in extraction goaf, prevents gas density in recovery process from transfiniting in a manner of negative pressure；Second stage successively injects fireproofing extinguishing materials to goaf using above-mentioned concordant directional drilling, prevents spontaneous combustion of remaining coal in goaf.The method can realize the purpose of gas drainage and fire extinguishing in high methane spontaneous fire seam recovery process using concordant directional drilling, and easy to operate, gas drainage rate is high, and fire extinguishing effect is good, save engineering cost.
Description
Technical field
The present invention relates to a kind of compound diaster prevention and control methods of coal mine, specifically a kind of to utilize the extraction of concordant directional drilling
The method of gas and fire extinguishing.
Background technique
It is the important disaster for influencing Safety of Coal Mine Production that goaf gas concentration, which transfinites with spontaneous combustion of remaining coal, is especially being exploited
When gas bearing capacity is high and coal body has the coal seam of spontaneous combustion tendency, it is possible to induce the major accidents such as gas explosion.
Currently, the technical measures that prevention goaf gas concentration transfinites are goaf pipe laying extractions, and prevent mined out
The main means that area's spontaneous combustion of remaining coal is under fire are by pipeline to goaf grouting, note resistanceization mud, gel-filled, inert gas injection
Deng.In addition, the layer-through drilling that sometimes can also construct carries out goaf gas extraction or injection fireproofing extinguishing materials.
But either lay pipeline in goaf and still construct layer-through drilling, it can all be worked to varying degrees
The destruction of rock of roof caving etc. in the exploitation process of face can not play its normal use value, and carry out layer-through drilling
When construction, it is easy to appear the practical problems such as repetition drilling, one-tenth porosity is low, later maintenance is difficult；Meanwhile it being directed to goaf watt at present
This concentration transfinites with spontaneous combustion of remaining coal and the drilling designed and pipeline effect are relatively simple, utilization rate is low.This not only influences coal mine
Production work is normally carried out, and considerably increases the cost of coal mining.
Summary of the invention
The present invention be to avoid the problems of above-mentioned prior art, provide it is a kind of it is easy to operate, gas drainage rate is high,
Fire extinguishing effect is good, saves the method using concordant directional drilling mash gas extraction and fire extinguishing of engineering cost.
The object of the present invention is achieved like this: in the intake (2) and return aircourse (3) of stope (1)
It digs drill site (4), the then construction into the coal seam (5) on the outside of intake (2) and return aircourse (3) respectively in drill site (4)
Concordant directional drilling (6), and it is pierced by coal wall of the concordant directional drilling (6) on the outside of intake (2) and return aircourse (3),
Gas drainage and fire extinguishing work in goaf (7) are carried out then according to the next stage:
First stage successively utilizes the concordant directional drilling (6) in drill site (4) in stope (1) recovery process,
Gas in extraction goaf (7), prevents gas density in recovery process from transfiniting in a manner of negative pressure；
Second stage successively injects fireproofing extinguishing materials to goaf (7) using above-mentioned concordant directional drilling (6), prevents from adopting
Spontaneous combustion of remaining coal in dead zone (7).
Drill site (4) spacing in the same tunnel is 50~60 meters, the intake (2) in stope (1)
It is arranged symmetrically in return aircourse (3).
Middle 5~6 concordant directional drillings (6) of constructing of each drill site (4), concordant Directional Drilling in the same drill site (4)
The horizontal space of the borehole bottom location in hole (6) is 6~10 meters.
The vertical interval of concordant directional drilling (6) in the same tunnel in two neighboring drill site (4) be 0.5~
1.5 rice.
The utility model has the advantages that as the above scheme is adopted, 1, using concordant directional drilling, can extraction goaf gas, also
Fireproofing extinguishing materials can be injected into goaf, are substantially increased the utilization rate of drilling, are reduced engineering cost；2, drill site and concordant
Directional drilling is constructed in the coal seam on the outside of the intake of working face and return aircourse, and drilling is not easily susceptible to destroy, and
It will not influence the normal exploitation of working face when implementing goaf gas extraction and fire-fighting measure.
Advantage: this method is able to achieve the purpose of mash gas extraction and fire extinguishing in high methane spontaneous fire seam, easy to operate,
Gas drainage rate is high, and fire extinguishing effect is good, saves engineering cost.
Detailed description of the invention
Fig. 1 is the method for the present invention drill site and orientation concordant drilling arrangement top view before stope exploitation.
Fig. 2 is the method for the present invention drill site and orientation concordant drilling arrangement side view before stope exploitation.
Fig. 3 is that the method for the present invention is shown in stope recovery process using orientation concordant hole pumping and mining goaf gas
It is intended to.
Fig. 4 is drilled in stope recovery process using orientation concordant for the method for the present invention injects anti-go out to goaf
Fiery material schematic diagram.
In figure: 1- stope；2- intake；The return aircourse 3-；4- drill site；The coal seam 5-；6- orients concordant drilling；
The goaf 7-.
Specific embodiment
The present invention is higher suitable for coal seam gas-bearing capacity and has the tendentious coal seam of spontaneous combustion, below to of the invention
Specific embodiment is illustrated:
Method particularly includes: in the intake (2) and return aircourse (3) of stope (1), opened every 50~60 meters
A drill site (4) is dug, drill site (4) is arranged symmetrically in the intake (2) of stope (1) and return aircourse (3), then
Respectively to middle 5~6 concordant Directional Drillings of constructing in the coal seam (5) on the outside of intake (2) and return aircourse (3) in drill site (4)
Hole (6), and it is pierced by coal wall of the concordant directional drilling (6) on the outside of intake (2) and return aircourse (3), the same drill site
(4) horizontal space of the borehole bottom location of concordant directional drilling (6) is 6~10 meters in, the concordant orientation in two neighboring drill site (4)
The perpendicular separation of drilling (6) is 0.5~1.5 meter.
In specific implementation, work according to gas drainage and fire extinguishing in goaf (7) is carried out with the next stage:
First stage successively utilizes the concordant directional drilling (6) in drill site (4) in stope (1) recovery process,
Gas in extraction goaf (7), prevents gas density in recovery process from transfiniting in a manner of negative pressure；
Second stage successively injects fireproofing extinguishing materials to goaf (7) using above-mentioned concordant directional drilling (6), prevents from adopting
Spontaneous combustion of remaining coal in dead zone (7).
Certainly, described above is only presently preferred embodiments of the present invention, and the present invention is not limited to above-described embodiments, should say
Bright, under the guidance of this specification, all equivalent replacements for being made obvious become anyone skilled in the art
Shape form, all falls within the essential scope of this specification, ought to be by protection of the invention.
Claims (4)
1. a kind of method using concordant directional drilling mash gas extraction and fire extinguishing, it is characterized in that: stope (1) into
Drill site (4) are dug in air way road (2) and return aircourse (3), then respectively to intake (2) and air return lane in drill site (4)
It constructs concordant directional drilling (6) in coal seam (5) on the outside of road (3), and makes concordant directional drilling (6) in intake (2) and return
Coal wall on the outside of air way road (3) is pierced by, and is worked then according to gas drainage and fire extinguishing in goaf (7) is carried out with the next stage:
First stage, successively using the concordant directional drilling (6) in drill site (4) in stope (1) recovery process, with negative
Gas in the mode extraction goaf (7) of pressure, prevents gas density in recovery process from transfiniting；
Second stage successively injects fireproofing extinguishing materials to goaf (7) using above-mentioned concordant directional drilling (6), prevents goaf
(7) spontaneous combustion of remaining coal in.
2. a kind of method using concordant directional drilling mash gas extraction and fire extinguishing according to claim 1, feature exist
In: drill site (4) spacing in the same tunnel is 50~60 meters, intake (2) and return air in stope (1)
Tunnel is arranged symmetrically in (3).
3. a kind of method using concordant directional drilling mash gas extraction and fire extinguishing according to claim 1, feature exist
In: 5~6 concordant directional drillings (6) of constructing in each drill site (4), concordant directional drilling (6) in the same drill site (4)
Borehole bottom location horizontal space be 6~10 meters.
4. a kind of method using concordant directional drilling mash gas extraction and fire extinguishing according to claim 1, feature exist
In: the vertical interval of the concordant directional drilling (6) in the same tunnel in two neighboring drill site (4) is 0.5~1.5 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632444.XA CN110173295B (en) | 2019-07-13 | 2019-07-13 | Method for extracting gas and preventing and extinguishing fire by using bedding directional drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910632444.XA CN110173295B (en) | 2019-07-13 | 2019-07-13 | Method for extracting gas and preventing and extinguishing fire by using bedding directional drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173295A true CN110173295A (en) | 2019-08-27 |
| CN110173295B CN110173295B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910632444.XA Active CN110173295B (en) | 2019-07-13 | 2019-07-13 | Method for extracting gas and preventing and extinguishing fire by using bedding directional drilling |
Country Status (1)
| Country | Link |
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| CN (1) | CN110173295B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879074A (en) * | 2021-04-07 | 2021-06-01 | 安徽理工大学 | Positive and negative pressure inert injection method and system for rapid fire prevention and extinguishing in goaf |
| CN112901247A (en) * | 2021-04-06 | 2021-06-04 | 中国矿业大学 | Coal mine underground multistage sleeve long-distance fire prevention and extinguishing drilling construction method |
| CN113586133A (en) * | 2021-09-08 | 2021-11-02 | 中煤科工集团重庆研究院有限公司 | Method for extracting pressure-relief gas from adjacent layer mined by upper protection layer of close-distance thin coal seam group |
| CN113863973A (en) * | 2021-10-27 | 2021-12-31 | 窑街煤电集团有限公司 | Nitrogen injection, grouting fire prevention and extinguishing process implemented by arranging drill holes in self-combustion coal seam |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1145160A1 (en) * | 1983-03-31 | 1985-03-15 | Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Горного Дела Им.А.А.Скочинского | Method of degassing top-worked wide seam |
| CN106014475A (en) * | 2016-07-05 | 2016-10-12 | 安徽理工大学 | High-gas coal bed group dip orientation drilling cluster and gas extracting method |
| CN106437825A (en) * | 2016-12-05 | 2017-02-22 | 山西石泉煤业有限责任公司 | Gas extraction method adopting high-level drilling on full-mechanized caving mining face of high gas mine |
| CN107859530A (en) * | 2017-11-07 | 2018-03-30 | 中国矿业大学(北京) | A kind of ultra close distance coal seam exploitation gas controls method altogether with coal spontaneous combustion |
| US20180209255A1 (en) * | 2015-01-06 | 2018-07-26 | China University Of Mining And Technology | Method for integrated drilling, slotting and oscillating thermal injection for coal seam gas extraction |
| CN108798758A (en) * | 2017-04-28 | 2018-11-13 | 煤科集团沈阳研究院有限公司 | Along top major diameter concordant hole pumping and mining goaf and gas at upper corner technique |
-
2019
- 2019-07-13 CN CN201910632444.XA patent/CN110173295B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1145160A1 (en) * | 1983-03-31 | 1985-03-15 | Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Горного Дела Им.А.А.Скочинского | Method of degassing top-worked wide seam |
| US20180209255A1 (en) * | 2015-01-06 | 2018-07-26 | China University Of Mining And Technology | Method for integrated drilling, slotting and oscillating thermal injection for coal seam gas extraction |
| CN106014475A (en) * | 2016-07-05 | 2016-10-12 | 安徽理工大学 | High-gas coal bed group dip orientation drilling cluster and gas extracting method |
| CN106437825A (en) * | 2016-12-05 | 2017-02-22 | 山西石泉煤业有限责任公司 | Gas extraction method adopting high-level drilling on full-mechanized caving mining face of high gas mine |
| CN108798758A (en) * | 2017-04-28 | 2018-11-13 | 煤科集团沈阳研究院有限公司 | Along top major diameter concordant hole pumping and mining goaf and gas at upper corner technique |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901247A (en) * | 2021-04-06 | 2021-06-04 | 中国矿业大学 | Coal mine underground multistage sleeve long-distance fire prevention and extinguishing drilling construction method |
| CN112879074A (en) * | 2021-04-07 | 2021-06-01 | 安徽理工大学 | Positive and negative pressure inert injection method and system for rapid fire prevention and extinguishing in goaf |
| CN113586133A (en) * | 2021-09-08 | 2021-11-02 | 中煤科工集团重庆研究院有限公司 | Method for extracting pressure-relief gas from adjacent layer mined by upper protection layer of close-distance thin coal seam group |
| CN113863973A (en) * | 2021-10-27 | 2021-12-31 | 窑街煤电集团有限公司 | Nitrogen injection, grouting fire prevention and extinguishing process implemented by arranging drill holes in self-combustion coal seam |
| CN113863973B (en) * | 2021-10-27 | 2024-01-16 | 窑街煤电集团有限公司 | Process for implementing nitrogen injection, grouting and fire prevention by arranging drill holes in spontaneous combustion coal bed |
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| Publication number | Publication date |
|---|---|
| CN110173295B (en) | 2022-07-26 |
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