CN106014474A - Three-hole combined construction method meeting requirements of downhole pressure releasing, water draining and prospecting and gas drainage - Google Patents
Three-hole combined construction method meeting requirements of downhole pressure releasing, water draining and prospecting and gas drainage Download PDFInfo
- Publication number
- CN106014474A CN106014474A CN201610325116.1A CN201610325116A CN106014474A CN 106014474 A CN106014474 A CN 106014474A CN 201610325116 A CN201610325116 A CN 201610325116A CN 106014474 A CN106014474 A CN 106014474A
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- Prior art keywords
- hole
- construction
- gas drainage
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000003245 coal Substances 0.000 claims abstract description 17
- 229920002635 polyurethane Polymers 0.000 claims abstract description 13
- 239000004814 polyurethane Substances 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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 OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention relates to the technical field of coal mine, particularly relates to a three-hole combined construction method meeting requirements of downhole pressure releasing, water draining and prospecting and gas drainage, and the situation that one hole has three functions can be realized, and the three-hole combining construction method is convenient and fast. The construction method disclosed by the invention has the following steps of: 1) constructing a drilling site; 2) constructing a combined hole; 3) placing a secondary casing; 4) placing a screen pipe; and 5) performing hole packing by a polyurethane hole packer for gas drainage.
Description
Technical field
The present invention relates to technical field of coal mine, be specifically related to a kind of meet down-hole release, leting speeper, three holes of gas drainage under suction and use construction method.
Background technology
In process of coal mining, bump, water, gas are the 3 the Nature disasters more highlighted, work surface driving and back production must comply with " tunnel after first release, not release is not tunneled ", " have doubt must visit, first visits and dig afterwards, meet pick to visit " and " first take out adopt afterwards, monitoring, with wind fixed output quota " principle, release, spy water and gas drainage under suction are all to be realized by construction drill.Current release needs pressure relief vent of constructing, and visiting water needs construction to visit water hole, and gas drainage under suction needs gas extraction hole of constructing, respectively three kinds of borings of construction, and workload is bigger, the longest, and the staff of employing is the most.
Summary of the invention
The present invention provides a kind of and meets down-hole release, leting speeper, three holes of gas drainage under suction by construction method, and it can realize hole three use, convenient and swift.
For solving the problem that prior art exists, the technical scheme is that and a kind of meet down-hole release, leting speeper, three holes of gas drainage under suction by construction method, it is characterised in that: described method step is:
1) construction drill site: a triangle drill site of constructing on the right side of digging laneway；
2) construct and with hole: constructing 1 and with hole on drill site with the limit of parallel length of meeting head on, and be 120-150mm with aperture, hole, hole depth is 100-180m, and is 6-10 ° with the angle in hole Yu digging laneway；
3) lower two grades of sleeve pipes: until and with hole construction to 20m time, to and with hole in two grades of sleeve pipes are set, the a length of 20m of two grades of sleeve pipes, a diameter of 89-146mm, to two grades of sleeve pipes and and with hole between slip casting, make two grades of sleeve pipes with and together with being condensed into hole, continue construction and with hole, construction to and with after hole depth, and change the stress distribution of coal body herein with hole, the energy making coal body store slowly is discharged, reach the purpose of release, if coal body has water herein, then water from and with hole flow out, reached the purpose of leting speeper；
4) screen casing under: and with hole construction to after the degree of depth, flow out without water, then meet the condition of gas drainage under suction, now can to and install screen casing with hole, a diameter of about the 50-60mm of screen casing, length is at 40-60m；
5) polyurethane hole packer sealing of hole: screen casing install to and with after the 40-60m degree of depth of hole, to and with hole polyurethane sealing of hole, by polyurethane uniform application on gunnysack, rapidly gunnysack is wrapped on hole packer while smearing, then in hole packer is sent into and used hole, treats that polyurethane generation chemical reaction expands, thus reach the purpose of sealing of hole, hole sealing depth is 5m, and sealing of hole terminates, it is possible to carry out coal bed gas drainage.
Described drill site height is consistent with head-room, and the side length of side that drill site communicates with tunnel is 7m, and another is 5m with parallel length of meeting head on, a length of 9m of another side.
Compared with prior art, advantages of the present invention is as follows: the present invention one hole three use, convenient and swift, reduces the expense on construction pressure relief vent, spy water hole, gas extraction hole, improves efficiency of construction, save time, manpower, for coal mining preparation work.
Accompanying drawing explanation
Fig. 1 is drill site with hole, two grades of sleeve pipe layout drawings in the inventive method
Description of reference numerals: in figure: 1-drill site, 2-with hole, bis-grades of sleeve pipes of 3-.
Detailed description of the invention
Below in conjunction with the accompanying drawings the design is described in detail:
See Fig. 1: meet down-hole release, leting speeper, three holes of gas drainage under suction and by construction method step be:
1) construction drill site: a triangle drill site 1 of constructing on the right side of digging laneway, drill site 1 height is consistent with head-room, and the side length of side that drill site 1 communicates with tunnel is 7m, and another is 5m with parallel length of meeting head on, a length of 9m of another side；
2) construct and with hole: constructing 1 and with hole 2 on the limit of a length of 5m of drill site 1, and be 120-150mm with aperture, hole 2, hole depth is 100-180m, and is 6-10 ° with the angle in hole 2 and digging laneway；
3) lower two grades of sleeve pipes: until and when constructing to 20m with hole 2, to and with hole 2 in two grades of sleeve pipes 3 are set, the a length of 20m of two grades of sleeve pipes 3, a diameter of 89-146mm, to two grades of sleeve pipes 3 and and with hole 2 between slip casting, make two grades of sleeve pipes 3 with and together with being condensed into hole 2, continue construction and with hole 2, construction to and with after the degree of depth of hole 2, and change the stress distribution of coal body herein with hole 2, the energy making coal body store slowly is discharged, reach the purpose of release, if coal body has water herein, then water from and flow out with hole 2, reached the purpose of leting speeper；
4) screen casing under: and construct to the degree of depth with hole 2, flows out without water, then meet the condition of gas drainage under suction, now can to and install screen casing with hole 2, a diameter of about the 50-60mm of screen casing, length is at 40-60m.
5) polyurethane hole packer sealing of hole: screen casing install to and with after the 40-60m degree of depth of hole, to and with hole 2 polyurethane sealing of hole, by polyurethane uniform application on gunnysack, rapidly gunnysack is wrapped on hole packer while smearing, then in hole packer being sent into and using hole 2, treats that polyurethane generation chemical reaction expands, thus reach the purpose of sealing of hole, hole sealing depth is 5m, and sealing of hole terminates, it is possible to carry out coal bed gas drainage.
Present invention invention can save equipment, material investment expense, only need to utilize original pressure relief vent construction equipment, material and original spy water orifice device, be not required to extra procuring equipment, material, puts into without other；
The present invention can create considerable economic benefit: before not using, fully mechanized workface need to be met head on leting speeper in advance, leting speeper 450 yuan/m of boring, applied by the research of this technology, on the basis of achieving " dig-unload " parallel operations, require to be designed according to leting speeper, while release, meet the requirement of leting speeper.Since this technology successful implementation, complete coal roadway tunneling 5052m, accumulative minimizing leting speeper drill footage 5760m.Simple construction leting speeper boring unit price is 150 yuan/m, by December, 2015, only saves leting speeper fund and has reached 150*5760=86.4 ten thousand yuan.
Claims (2)
1. one kind meets down-hole release, leting speeper, three holes of gas drainage under suction by construction method, it is characterised in that: described method step is:
1) construction drill site: a triangle drill site (1) of constructing on the right side of digging laneway；
2) construct and with hole: constructing 1 and with hole (2) on drill site (1) with the limit of parallel length of meeting head on, and be 120-150mm with hole (2) aperture, hole depth is 100-180m, and is 6-10 ° with the angle of hole (2) Yu digging laneway；
3) lower two grades of sleeve pipes: until and with hole (2) construction to 20m time, to and with hole (2) in two grades of sleeve pipes (3) are set, the a length of 20m of two grades of sleeve pipes (3), a diameter of 89-146mm, to two grades of sleeve pipes (3) and and with hole (2) between slip casting, make two grades of sleeve pipes (3) with and together with being condensed into hole (2), continue construction and with hole (2), construction is arrived and with after hole (2) degree of depth, and the stress distribution of coal body herein is changed with hole (2), the energy making coal body store slowly is discharged, reach the purpose of release, if coal body has water herein, then water from and with hole (2) flow out, reach the purpose of leting speeper；
4) screen casing under: and with hole (2) construction to after the degree of depth, flow out without water, then meet the condition of gas drainage under suction, now can to and install screen casing with hole (2), a diameter of about the 50-60mm of screen casing, length is at 40-60m；
5) polyurethane hole packer sealing of hole: screen casing install to and with after the 40-60m degree of depth of hole, to and use polyurethane sealing of hole with hole (2), by polyurethane uniform application on gunnysack, rapidly gunnysack is wrapped on hole packer while smearing, then hole packer is sent into and uses hole (2) interior, treat that polyurethane generation chemical reaction expands, thus reach the purpose of sealing of hole, hole sealing depth is 5m, and sealing of hole terminates, it is possible to carry out coal bed gas drainage.
The most according to claim 1 meet down-hole release, leting speeper, three holes of gas drainage under suction by construction method, it is characterized in that: described drill site (1) height is consistent with head-room, the side length of side that drill site (1) communicates with tunnel is 7m, another is 5m with parallel length of meeting head on, a length of 9m of another side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325116.1A CN106014474B (en) | 2016-05-17 | 2016-05-17 | Meet underground release, leting speeper, gas drainage under suction three holes and use construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325116.1A CN106014474B (en) | 2016-05-17 | 2016-05-17 | Meet underground release, leting speeper, gas drainage under suction three holes and use construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014474A true CN106014474A (en) | 2016-10-12 |
| CN106014474B CN106014474B (en) | 2018-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610325116.1A Expired - Fee Related CN106014474B (en) | 2016-05-17 | 2016-05-17 | Meet underground release, leting speeper, gas drainage under suction three holes and use construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014474B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581231A (en) * | 2009-06-16 | 2009-11-18 | 煤炭科学研究总院沈阳研究院 | Gas drainage method for loosening coal body through cross layer boring and hydraulic fracture |
| CN102061933A (en) * | 2010-12-13 | 2011-05-18 | 山西晋城无烟煤矿业集团有限责任公司 | Long drilling positioning construction process |
| CN102587962A (en) * | 2012-04-13 | 2012-07-18 | 中国矿业大学 | Methods for arranging and supporting wall-expanded gas extraction drill sites |
| CN102720528A (en) * | 2012-07-03 | 2012-10-10 | 中国矿业大学 | Underground coal mine repeating pulsation hydrofracture strengthened gas extracting method |
| CN103362540A (en) * | 2013-08-07 | 2013-10-23 | 中国矿业大学 | High gas coal seam pressure relief gas extraction method |
| CN103362541A (en) * | 2013-08-07 | 2013-10-23 | 中国矿业大学 | Method for locally improving coal seam air permeability in coal seam with high gas and low air permeability |
| CN103775127A (en) * | 2013-12-31 | 2014-05-07 | 中国矿业大学 | Method for comprehensively treating gas in low-air-permeability high-gas-content coal seam group |
| CN104234685A (en) * | 2014-07-22 | 2014-12-24 | 华北科技学院 | Staggered distribution method of anti-impact pressure relief drill holes in super high seam stoping surface |
| CN104314610A (en) * | 2014-10-11 | 2015-01-28 | 中煤科工集团重庆研究院有限公司 | Outburst eliminating method for coal roadway stripe region |
| CN104612625A (en) * | 2014-10-31 | 2015-05-13 | 河南理工大学 | Hole sealing device for low-permeability coal bed gas-phase fracturing drilling |
| CN104653161A (en) * | 2015-02-12 | 2015-05-27 | 中国矿业大学(北京) | Coal mine underground pulse hydraulic slot cutting-fracturing integral anti-reflection extraction device and method |
-
2016
- 2016-05-17 CN CN201610325116.1A patent/CN106014474B/en not_active Expired - Fee Related
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581231A (en) * | 2009-06-16 | 2009-11-18 | 煤炭科学研究总院沈阳研究院 | Gas drainage method for loosening coal body through cross layer boring and hydraulic fracture |
| CN102061933A (en) * | 2010-12-13 | 2011-05-18 | 山西晋城无烟煤矿业集团有限责任公司 | Long drilling positioning construction process |
| CN102587962A (en) * | 2012-04-13 | 2012-07-18 | 中国矿业大学 | Methods for arranging and supporting wall-expanded gas extraction drill sites |
| CN102720528A (en) * | 2012-07-03 | 2012-10-10 | 中国矿业大学 | Underground coal mine repeating pulsation hydrofracture strengthened gas extracting method |
| CN103362540A (en) * | 2013-08-07 | 2013-10-23 | 中国矿业大学 | High gas coal seam pressure relief gas extraction method |
| CN103362541A (en) * | 2013-08-07 | 2013-10-23 | 中国矿业大学 | Method for locally improving coal seam air permeability in coal seam with high gas and low air permeability |
| CN103775127A (en) * | 2013-12-31 | 2014-05-07 | 中国矿业大学 | Method for comprehensively treating gas in low-air-permeability high-gas-content coal seam group |
| CN104234685A (en) * | 2014-07-22 | 2014-12-24 | 华北科技学院 | Staggered distribution method of anti-impact pressure relief drill holes in super high seam stoping surface |
| CN104314610A (en) * | 2014-10-11 | 2015-01-28 | 中煤科工集团重庆研究院有限公司 | Outburst eliminating method for coal roadway stripe region |
| CN104612625A (en) * | 2014-10-31 | 2015-05-13 | 河南理工大学 | Hole sealing device for low-permeability coal bed gas-phase fracturing drilling |
| CN104653161A (en) * | 2015-02-12 | 2015-05-27 | 中国矿业大学(北京) | Coal mine underground pulse hydraulic slot cutting-fracturing integral anti-reflection extraction device and method |
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| Publication number | Publication date |
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| CN106014474B (en) | 2018-06-01 |
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| Date | Code | Title | Description |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Hu Inventor after: Shao Changyao Inventor after: Liang Donghui Inventor after: Liu Wei Inventor after: Zhang Zixue Inventor after: Chen Xiuchao Inventor after: He Yong Inventor after: Mou Junkang Inventor before: Shao Changyao Inventor before: Chen Xiuchao Inventor before: He Yong Inventor before: Zhang Zixue Inventor before: Chen Shuai |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20190517 |