CN102644476A - Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel - Google Patents
Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel Download PDFInfo
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- CN102644476A CN102644476A CN2012101427170A CN201210142717A CN102644476A CN 102644476 A CN102644476 A CN 102644476A CN 2012101427170 A CN2012101427170 A CN 2012101427170A CN 201210142717 A CN201210142717 A CN 201210142717A CN 102644476 A CN102644476 A CN 102644476A
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Abstract
Provided is a method for pumping gas of a protected layer by layer penetration and hole drilling on high-position drilling fields of a protecting layer machinery tunnel. The high-position drilling fields are arranged in the protecting layer machinery tunnel at intervals, a plurality of layer-penetration drilled holes which are in three rows and penetrate through the protected layer are arranged towards the protected layer in each high-position drilling field, and after hole drilling in each high-position drilling field is finished, the holes are sealed, and a gas pumping pipe is connected to pump the gas. The method is suitable for gas exploiting in a protected layer exploiting technology, the gas of a protected layer can be pre-pumped prior to exploiting of a protecting layer, and the pressure-releasing gas of the protected layer is pumped after the protecting layer is exploited. The method is simple, can reduce construction cost, shortens exploiting cycle, eliminates potential safety hazards, and facilitates safety management.
Description
Technical field
The present invention relates to the gas pumping technology, especially be applicable to the method for a kind of topping machine lane high-order drill site layer-through drilling extraction protected seam gas.
Background technology
" the outstanding regulation of control coal and gas " regulation is projecting coal bed must take regional outburst prevention measures, and the topping production technique is a kind of regional outburst prevention measures mainly, wherein relates to two coal seams of topping and protected seam.For the outburst danger of eliminating contiguous coal seam (protected seam) is called topping in the coal seam of exploitation earlier; Because pumping and mining pressure relief mash gas is simultaneously used also in the action of adopting of topping exploitation, can make contiguous outburst danger coal seam change no outburst danger coal seam into, this outburst danger coal seam is called protected seam.
After the topping exploitation, protected seam has obtained the release antireflective effect, eliminates outburst hazard for making protected seam, must carry out extraction to the gas pressure relief of protected seam.At present, on the floor roadway grid type be one of common measure of the protected seam gas pressure relief being carried out extraction to the layer-through drilling pumping method.This method need be moved towards construction floor rock tunnel (floor roadway) in the base plate of protected seam; The drill site of in floor roadway, constructing at a certain distance; In each drill site to protected seam construction gridding type layer-through drilling; And layer-through drilling carried out permanent sealing of hole, through hole sealing tube boring is connected in total extraction pipeline of laying in the floor roadway and carries out gas pumping.But this method construction tunnel engineering quantity is big, cost of investment is high, long construction period, and this has not only increased cost but also has influenced the exploitation cycle; Gas gets into the tunnel along the crack possibly cause that gas density transfinites in the floor roadway, causes base plate lane daily management difficulty, has potential safety hazard.
Summary of the invention
Technical problem: the objective of the invention is to overcome the problem that exists in the prior art, provide that a kind of method is simple, construction cost is low, the cycle is short, safe and efficient, the simple protected seam protection layer machine of management lane drill site layer-through drilling pumping method.
Technical scheme: the method for topping machine of the present invention lane high-order drill site layer-through drilling extraction protected seam gas comprises the steps:
A. with the corresponding topping machine of topping air way lane in arrange a high-order drill site along bearing is every laterally at a distance from 90m;
B. across pitch is arranged three row's layer-through drillings in each high-order drill site, and three row's layer-through drillings all pass protected seam, should avoid passing the erecting dense individual props band when arranging layer-through drilling;
C. the interior layer-through drilling construction of each high-order drill site finishes the back it is carried out the cement mortar sealing of hole, and hole sealing tube length is confirmed according to rock property, exposes the connection extraction pipeline at hole sealing tube after sealing of hole finishes;
D. before the topping exploitation, earlier protected seam is carried out gas extraction in advance;
E. after the topping exploitation, along with the propelling of exploitation work plane, protected seam is anti-reflection because of adopting the living release of movable property, is drawn out of at a plurality of layer-through drillings of gas pressure relief under the extraction suction function in high-order drill site.
Described across pitch arranges that the strike separation of three row's layer-through drillings is 30m, and the tendency spacing is 30m; Described across pitch arranges that the distance of the leading high-order drill site of trend that first of three row's layer-through drillings are arranged is 40 ~ 50m; Described across pitch arranges that outermost two bore positions of the every row's layer-through drilling in three row's layer-through drillings are respectively apart from protected seam machine lane and the protected seam air way outside 15 ~ 20m.
Beneficial effect: the present invention's special floor roadway of need not constructing; Overcome big on traditional floor roadway grid type to layer-through drilling pumping method construction tunnel engineering quantity, cost of investment is high, long construction period, this has not only increased cost but also has influenced the exploitation cycle; Gas gets into the tunnel along the crack possibly cause that gas density transfinites in the floor roadway, causes base plate lane daily management difficulty, has potential safety hazard.This method has reduced construction cost, has shortened the exploitation cycle, convenient and safe management.
Description of drawings
Fig. 1 is the method sketch map of topping machine of the present invention lane high-order drill site layer-through drilling extraction protected seam gas.
Fig. 2 is one group of layer-through drilling cross section pumping method sketch map of the present invention.
Among the figure: 1-topping; 2-protected seam; 3-topping air way; 4-topping machine lane; 5-protected seam air way; 6-protected seam machine lane; 7-dead zone caving zone; 8-high-order drill site; 9-layer-through drilling.
The specific embodiment
As shown in Figure 1; The method of topping machine of the present invention lane high-order drill site layer-through drilling extraction protected seam gas; At first with topping air way 3 corresponding topping machine lanes 4 in arrange a high-order drill site 8 along bearing is every laterally at a distance from 90m, treat that each high-order drill site 8 construction finishes after, across pitch arranges that three arrange a plurality of layer-through drillings 9 that pass protected seam 2 each high-order drill site 8 in; As shown in Figure 2; Layout is worn layer brill should avoid passing erecting dense individual props band 7 at 9 o'clock, and three row's layer-through drillings, 9 strike separations in each high-order drill site 8 are 30m, and first row's of layer-through drilling 9 the leading high-order drill site 8 of trend is 40 ~ 50m; The tendency spacing of every row's layer-through drilling 9 is 30m, and outermost two bore positions of every row's layer-through drilling 9 are respectively apart from protected seam machine lane 6 and protected seam air way 5 outsides 15 ~ 20m; Each high-order drill site 8 interior layer-through drilling 9 construction finishes the back it is carried out the cement mortar sealing of hole, and hole sealing tube length is confirmed by routine according to rock property, exposes the connection extraction pipeline at hole sealing tube after sealing of hole finishes; Before topping 1 exploitation, earlier protected seam 2 is carried out gas extraction in advance; After topping 1 exploitation, along with the propelling of exploitation work plane, to give birth to release anti-reflection because of adopting movable property for protected seam 1, and the gas pressure relief layer that wears long is holed and 9 is drawn out of under the extraction suction function; The negative pressure of carrying out extraction is 15～20 KPa.
Claims (4)
1. the method for a topping machine lane high-order drill site layer-through drilling extraction protected seam gas is characterized in that comprising the steps:
A. with topping air way (3) corresponding topping machine lane (4) in arrange a high-order drill site (8) along bearing is every laterally at a distance from 90m;
B. across pitch is arranged three row's layer-through drillings (9) in each high-order drill site (8), and three row's layer-through drillings (9) all pass protected seam (2), should avoid passing erecting dense individual props band (7) when arranging layer-through drilling (9);
C. interior layer-through drilling (9) construction of each high-order drill site (8) finishes the back it is carried out the cement mortar sealing of hole, and hole sealing tube length is confirmed according to rock property, exposes the connection extraction pipeline at hole sealing tube after sealing of hole finishes;
D. before topping (1) exploitation, earlier protected seam (2) is carried out gas extraction in advance;
E. after topping (1) exploitation, along with the propelling of exploitation work plane, protected seam (2) is anti-reflection because of adopting the living release of movable property, is drawn out of at a plurality of layer-through drillings (9) of gas pressure relief under the extraction suction function in high-order drill site (8).
2. protected seam protection layer machine according to claim 1 lane drill site layer-through drilling pumping method is characterized in that: described across pitch arranges that the strike separation of three row's layer-through drillings (9) is 30m, and the tendency spacing is 30m.
3. protected seam protection layer machine according to claim 1 lane drill site layer-through drilling pumping method is characterized in that: described across pitch arranges that the distance of the leading high-order drill site of trend (8) that first of three row's layer-through drillings (9) are arranged is 40 ~ 50m.
4. according to claim 1,2 or 3 described protected seam protection layer machine lane drill site layer-through drilling pumping methods, it is characterized in that: described across pitch arranges that outermost two bore positions of the every row's layer-through drilling (9) in three row's layer-through drillings (9) are respectively apart from protected seam machine lane (6) and protected seam air way (5) outside 15 ~ 20m.
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| CN201210142717.0A CN102644476B (en) | 2012-05-10 | 2012-05-10 | Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel |
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| CN201210142717.0A CN102644476B (en) | 2012-05-10 | 2012-05-10 | Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel |
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| CN102644476A true CN102644476A (en) | 2012-08-22 |
| CN102644476B CN102644476B (en) | 2014-06-18 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306713A (en) * | 2013-05-20 | 2013-09-18 | 中国矿业大学 | Networked reinforcement method for cross-layer drilling of outburst coal seam |
| CN103696801A (en) * | 2013-12-20 | 2014-04-02 | 安徽理工大学 | Method for testing surface borehole pressure relief gas drainage range |
| CN103758560A (en) * | 2014-01-14 | 2014-04-30 | 中国矿业大学 | Method for gas treatment in multiple progressive protection seam grouping regions |
| CN106150541A (en) * | 2016-07-05 | 2016-11-23 | 安徽理工大学 | A kind of base plate directional drilling group and neighbouring lower protected seam gas pumping method |
| CN106437826A (en) * | 2016-12-14 | 2017-02-22 | 中国矿业大学 | Coal-bed gas extraction method achieving automatic adjustment of negative-pressure drill-hole zoning and source differentiating |
| CN107130996A (en) * | 2017-06-28 | 2017-09-05 | 中国矿业大学(北京) | Non-isometric protective layer working face mining layer-through drilling pumping and mining pressure relief mash gas technical method |
| CN109025999A (en) * | 2018-09-12 | 2018-12-18 | 中国矿业大学 | A kind of one three top coal method for weakening |
| CN109441526A (en) * | 2019-01-11 | 2019-03-08 | 淮南矿业(集团)有限责任公司 | A kind of protected seam gas pumping method |
| CN109469503A (en) * | 2018-11-07 | 2019-03-15 | 兖矿新疆矿业有限公司 | It is a kind of to stop adopting the fire extinguishing method of line for comprehensive coal face using high-order drill site |
| CN109899037A (en) * | 2019-03-14 | 2019-06-18 | 湖南科技大学 | Gas extraction method in and after mining process of large-dip-angle coal seam |
| CN111828083A (en) * | 2020-07-31 | 2020-10-27 | 中国矿业大学(北京) | Gas extraction method for single coal seam |
| CN113294199A (en) * | 2021-04-07 | 2021-08-24 | 淮南矿业(集团)有限责任公司 | Method for arranging gas control roadway under mining of lower protective layer |
| CN115163026A (en) * | 2022-06-30 | 2022-10-11 | 河南理工大学 | Method for arranging through-layer drill holes of protective layer under remote coal seam |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306713A (en) * | 2013-05-20 | 2013-09-18 | 中国矿业大学 | Networked reinforcement method for cross-layer drilling of outburst coal seam |
| CN103696801A (en) * | 2013-12-20 | 2014-04-02 | 安徽理工大学 | Method for testing surface borehole pressure relief gas drainage range |
| CN103758560A (en) * | 2014-01-14 | 2014-04-30 | 中国矿业大学 | Method for gas treatment in multiple progressive protection seam grouping regions |
| CN103758560B (en) * | 2014-01-14 | 2015-11-18 | 中国矿业大学 | A kind of multiple topping packet zone mash gas harnessing method that goes forward one by one |
| CN106150541B (en) * | 2016-07-05 | 2019-06-18 | 安徽理工大学 | A kind of bottom plate directional drilling group and neighbouring lower protected seam gas pumping method |
| CN106150541A (en) * | 2016-07-05 | 2016-11-23 | 安徽理工大学 | A kind of base plate directional drilling group and neighbouring lower protected seam gas pumping method |
| CN106437826A (en) * | 2016-12-14 | 2017-02-22 | 中国矿业大学 | Coal-bed gas extraction method achieving automatic adjustment of negative-pressure drill-hole zoning and source differentiating |
| CN107130996A (en) * | 2017-06-28 | 2017-09-05 | 中国矿业大学(北京) | Non-isometric protective layer working face mining layer-through drilling pumping and mining pressure relief mash gas technical method |
| CN107130996B (en) * | 2017-06-28 | 2023-08-18 | 中国矿业大学(北京) | Technical method for mining through-layer drilling and pressure relief gas extraction of non-equilong protective layer working face |
| CN109025999A (en) * | 2018-09-12 | 2018-12-18 | 中国矿业大学 | A kind of one three top coal method for weakening |
| CN109469503A (en) * | 2018-11-07 | 2019-03-15 | 兖矿新疆矿业有限公司 | It is a kind of to stop adopting the fire extinguishing method of line for comprehensive coal face using high-order drill site |
| CN109441526A (en) * | 2019-01-11 | 2019-03-08 | 淮南矿业(集团)有限责任公司 | A kind of protected seam gas pumping method |
| CN109899037A (en) * | 2019-03-14 | 2019-06-18 | 湖南科技大学 | Gas extraction method in and after mining process of large-dip-angle coal seam |
| CN111828083A (en) * | 2020-07-31 | 2020-10-27 | 中国矿业大学(北京) | Gas extraction method for single coal seam |
| CN113294199A (en) * | 2021-04-07 | 2021-08-24 | 淮南矿业(集团)有限责任公司 | Method for arranging gas control roadway under mining of lower protective layer |
| CN113294199B (en) * | 2021-04-07 | 2022-08-02 | 淮南矿业(集团)有限责任公司 | Method for arranging gas control roadway under mining of lower protective layer |
| CN115163026A (en) * | 2022-06-30 | 2022-10-11 | 河南理工大学 | Method for arranging through-layer drill holes of protective layer under remote coal seam |
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| CN102644476B (en) | 2014-06-18 |
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