CN202946188U - Gas extraction drilling hole multiphase medium plugging device - Google Patents
Gas extraction drilling hole multiphase medium plugging device Download PDFInfo
- Publication number
- CN202946188U CN202946188U CN 201220651274 CN201220651274U CN202946188U CN 202946188 U CN202946188 U CN 202946188U CN 201220651274 CN201220651274 CN 201220651274 CN 201220651274 U CN201220651274 U CN 201220651274U CN 202946188 U CN202946188 U CN 202946188U
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- Prior art keywords
- drilling hole
- hole
- gas extraction
- plugging device
- mortar
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- 238000005553 drilling Methods 0.000 title claims abstract description 27
- 238000000605 extraction Methods 0.000 title abstract description 17
- 239000000945 filler Substances 0.000 claims description 36
- 238000005086 pumping Methods 0.000 claims description 28
- 239000004570 mortar (masonry) Substances 0.000 claims description 26
- 239000002775 capsule Substances 0.000 claims description 25
- 210000003097 mucus Anatomy 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 11
- 238000007569 slipcasting Methods 0.000 claims description 4
- 238000001467 acupuncture Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 19
- 238000007789 sealing Methods 0.000 abstract description 19
- 239000011083 cement mortar Substances 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract 3
- 230000001070 adhesive effect Effects 0.000 abstract 3
- 238000001514 detection method Methods 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 36
- 238000005065 mining Methods 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 235000019890 Amylum Nutrition 0.000 description 1
- 241001474374 Blennius Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A gas extraction drilling hole multiphase medium plugging device is especially applied to sealing of a gas extraction drilling hole of a mine underground wear layer and the coal layer and detection of gas pressure. The device is composed of an initial hole sealing section, a tail hole sealing section and a plurality of middle hole sealing sections, brings convenience to adjustments of the depth and the length of a sealed hole, and can realize fixed point plugging in an extraction moving crack zone. The method comprises the steps of drilling a gas extraction hole in a constructional coal layer or the wear layer, placing the gas drilling hole multiphase medium plugging device which is debugged and installed in the gas extraction drilling hole, pouring cement mortar, and pouring adhesive liquid after the cement mortar is solidified. The gas extraction drilling hole multiphase medium plugging device achieves the double effects that the solidified cement mortar plugs the drilling hole and the adhesive liquid plugs cracks. The adhesive liquid with pressure permeates in the cracks of the drilling hole so as to achieve regional plugging of original places around the drilling hole and secondary interstices and be helpful to improve sealing effect of the drilling hole. The gas extraction drilling hole multiphase medium plugging device is simple in structure, safe, reliable, convenient to operate, and good in utilization effect.
Description
Technical field
The utility model relates to a kind of coal mine gas extraction borehole multiphase medium plugging device, is particularly useful for wearing under coal mine layer and the sealing of this coal bed gas extraction boring and the mensuration of gas pressure.
Background technology
Gas is not only the source of the great Gas Disaster in colliery as the association product of coal, especially a kind of non-renewable energy of preciousness.Increase along with the coal mining degree of depth, coal seam gas-bearing capacity will enlarge markedly, realize that adopting altogether of coal and gas is the inevitable approach of deepen coal resource exploitation, simultaneously the efficient level of production of lifting safety of coal mines, minimizing greenhouse gas emission are of great significance.
Current, it is to realize that coal and gas adopts, reduces the basic measures of gas accident altogether that coal-bed gas is taken out in advance, and the effective sealing of mash gas pumping drilling is the key link that wherein ensures the gas pumping effect.So far, sealing to mash gas pumping drilling is to adopt the sealing materials such as cement mortar, polyurethane mostly, but the crescent space at boring top very easily appears in cement mortar in the lateral aperture sealing, and be difficult to realize the sealing of hole segment length grown when adopting the polyurethane sealing of hole, be prone to the phenomenon of contraction when simultaneously polyurethane is longer between in use, and because the toxicity of material itself makes it be restricted in the use under coal mine.
Therefore, in present mash gas pumping drilling Sealing Technology, directly caused the concentration of coal mine gas extraction lower because sealing quality is relatively poor, the period of validity of extraction shortens, and also reduced the effective rate of utilization of mash gas pumping drilling.
Summary of the invention
Technical problem: the purpose of this utility model is the weak point that overcomes in prior art, and a kind of device and method of simple in structure, easy to operate, safe and reliable and efficient mash gas pumping drilling effective sealing is provided.
technical scheme: mash gas pumping drilling multiphase medium plugging device of the present utility model, it comprises a plurality of gas pumping pipes that connect through snap joint one, be respectively equipped with an elastic capsule on each gas pumping pipe, the two ends of each elastic capsule are respectively equipped with right baffle-plate and the right baffle plate that is fixed, the both sides up and down of a plurality of gas pumping pipes are respectively equipped with identical with its number, pass a plurality of mortar filler pipes and the mucus filler pipe of elastic capsule, a plurality of mortar filler pipes link together through snap joint two respectively, a plurality of mucus filler pipes link together through the fast three-way joint respectively, penetrate the mortar filler pipe of last elastic capsule and the end of mucus filler pipe and be respectively equipped with stifled slurry plug one and stifled slurry plug two, the mortar filler pipe that is exposed at first elastic capsule outside outward is provided with stop valve one and pressure meter one, the mucus filler pipe is provided with stop valve two and pressure meter two, described mortar filler pipe middle part is provided with to the mortar nozzle of the inner slip casting of elastic capsule.
Be processed with the acupuncture micropore on described elastic capsule; Described mortar nozzle is the one-way flow nozzle.
Beneficial effect: due to the impact that is subjected to geostatic stress and Seam Mining, exist the Fracture Networks of different development degrees, different spaces yardstick in the coal and rock around the coal mine gas extraction borehole, and it presents the evolution trend of dynamic expansion with Seam Mining.The utility model adopts cement mortar sealing gas extraction borehole, and the seepage flow of employing viscous liquid in the crack, the Fracture Networks that is interconnected is carried out effective sealing, the regional shutoff of original position and secondary interstice on every side can realize holing when realizing borehole sealing, effectively the air that causes due to the existence of Fracture Networks passage under the hole pumping and mining suction function of blocking-up to the leakage of extraction pipeline, improves the extraction concentration of gas.The utility model can carry out the combination of a plurality of elastic capsules according to the needs of hole sealing depth under coal mine and length, conveniently realizes " fixed point " shutoff of mining induced fissure district band.Realized that cement mortar solidifies the double effects in shutoff boring and viscous liquid shutoff crack, simultaneously, the infiltration of viscous liquid with pressure in the boring crack realized the regional shutoff of original position and secondary interstice around boring, helps to improve the sealing effectiveness of boring.It is simple in structure, and is safe and reliable, easy to operate, and result of use is good, has in the art practicality widely.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of the utility model coal mine gas extraction borehole multiphase medium method for blocking.
In figure: 1-gas pumping pipe, 2-mortar filler pipe, 3-stop valve one, 4-pressure meter one, the right baffle plate of 5-, 6-mortar nozzle, 7-right baffle-plate, 8-snap joint two, 9-snap joint one, the stifled slurry plug two of the stifled slurry plug of 10-one, 11-, 12-fast three-way joint, 13-elastic capsule, 14-pressure meter two, 15-stop valve two, 16-mucus filler pipe, 17-original position and secondary interstice, the 18-cement mortar, 19-mash gas pumping drilling, 20-mucus liquid.
The specific embodiment
Below in conjunction with accompanying drawing, an embodiment of the present utility model is further described:
The utility model mash gas pumping drilling multiphase medium plugging device, mainly by a plurality of gas pumping pipes 1, mortar filler pipe 2, elastic capsule 13, mucus filler pipe 16 consists of, a plurality of gas pumping pipes 1 are connected through snap joint 1, in Fig. 1 be three, be respectively equipped with an elastic capsule 13 on each gas pumping pipe 1, be processed with the acupuncture micropore on each elastic capsule 13.the two ends of each elastic capsule 13 are respectively equipped with right baffle-plate 7 and the right baffle plate 5 that is fixed, the both sides up and down of a plurality of gas pumping pipes 1 are respectively equipped with identical with its number, pass a plurality of mortar filler pipes 2 and the mucus filler pipe 16 of elastic capsule 13, a plurality of mortar filler pipes 2 link together through snap joint 28 respectively, a plurality of mucus filler pipes 16 link together through fast three-way joint 12 respectively, penetrate the mortar filler pipe 2 of last elastic capsule 13 and the end of mucus filler pipe 16 and be respectively equipped with stifled slurry plug 1 and stifled slurry plug 2 11, the mortar filler pipe 2 that is exposed at first elastic capsule 13 outsides outward is provided with stop valve 1 and pressure meter 1, mucus filler pipe 16 is provided with stop valve 2 15 and pressure meter 2 14, described mortar filler pipe 2 middle parts are provided with to the mortar nozzle 6 of elastic capsule 13 inner slip castings, mortar nozzle 6 is the one-way flow nozzle.
The course of work: a plurality of gas pumping pipe 1 use snap joints 1 are linked together, and with a plurality of mortar filler pipe 2 use snap joints 28 connect, mucus filler pipe 16 use fast three-way joints 12 connect, the end of mortar filler pipe 2 carries out shutoff with stifled slurry plug 1, and the end of mucus filler pipe 16 carries out shutoff with stifled slurry plug 2 11; After construction is completed to this coal seam or layer-through drilling, the mash gas pumping drilling multiphase medium plugging device that assembles is sent in mash gas pumping drilling 19; Opening stop valve 1 to the interior injected water cement mortar 18 of elastic capsule 13, stops slip casting when pressure meter 1 shows grouting pressure after stable by Grouting Pipe 2; After the cement mortar 18 of annotating is solidified, opening stop valve 2 15, to original position and the interior injection viscous liquid 20 of secondary interstice 17, described viscous liquid 20 is plant amylum slurries, seaweeds fermentation mucus or the viscous liquid that adds chemical thickener modification by mucus filler pipe 16; By pressure meter 2 14 monitoring mucus filling pressure, after showing pressure stability, pressure meter 2 14 stops fluid injection.
Claims (3)
1. mash gas pumping drilling multiphase medium plugging device, it is characterized in that: it comprises a plurality of gas pumping pipes (1) that connect through snap joint one (9), be respectively equipped with an elastic capsule (13) on each gas pumping pipe (1), the two ends of each elastic capsule (13) are respectively equipped with right baffle-plate (7) and the right baffle plate (5) that is fixed, the both sides up and down of a plurality of gas pumping pipes (1) are respectively equipped with identical with its number, pass a plurality of mortar filler pipes (2) and the mucus filler pipe (16) of elastic capsule (13), a plurality of mortar filler pipes (2) link together through snap joint two (8) respectively, a plurality of mucus filler pipes (16) link together through fast three-way joint (12) respectively, penetrate the mortar filler pipe (2) of last elastic capsule (13) and the end of mucus filler pipe (16) and be respectively equipped with stifled slurry plug one (10) and stifled slurry plug two (11), the mortar filler pipe (2) that is exposed at first elastic capsule (13) outside outward is provided with stop valve one (3) and pressure meter one (4), mucus filler pipe (16) is provided with stop valve two (15) and pressure meter two (14), described mortar filler pipe (2) middle part is provided with to the mortar nozzle (6) of the inner slip casting of elastic capsule (13).
2. according to claim
1Described mash gas pumping drilling multiphase medium plugging device is characterized in that: described elastic capsule is processed with the acupuncture micropore on (13).
3. according to claim
1Described mash gas pumping drilling multiphase medium plugging device is characterized in that: described mortar nozzle (6) is the one-way flow nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651274 CN202946188U (en) | 2012-12-03 | 2012-12-03 | Gas extraction drilling hole multiphase medium plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651274 CN202946188U (en) | 2012-12-03 | 2012-12-03 | Gas extraction drilling hole multiphase medium plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946188U true CN202946188U (en) | 2013-05-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651274 Expired - Lifetime CN202946188U (en) | 2012-12-03 | 2012-12-03 | Gas extraction drilling hole multiphase medium plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946188U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996159A (en) * | 2012-12-03 | 2013-03-27 | 中国矿业大学 | Multiphase medium plugging device and method for gas extraction drill hole |
| CN103485747A (en) * | 2013-09-23 | 2014-01-01 | 陕西煤业化工技术研究院有限责任公司 | Automatic pressure-adding borehole sealing device and method |
| CN103711515A (en) * | 2013-12-31 | 2014-04-09 | 河南能源化工集团研究院有限公司 | Reusable multistage gasbag mucus gas extraction drilling and hole sealing device |
| CN104832209A (en) * | 2015-04-04 | 2015-08-12 | 西安科技大学 | Roadway advanced borehole diversion drainage goaf gas technology |
| CN105134129A (en) * | 2015-05-29 | 2015-12-09 | 河南理工大学 | Gas extraction hole sealing method based on radial strong expansion |
| CN107859500A (en) * | 2017-10-13 | 2018-03-30 | 大连理工大学 | Rock body quality of mine drilling transmission increasing gas closure unit and measurement system |
| CN111852391A (en) * | 2020-08-07 | 2020-10-30 | 中煤科工集团重庆研究院有限公司 | Self-adaptive deformation gas extraction drilling and hole sealing device |
-
2012
- 2012-12-03 CN CN 201220651274 patent/CN202946188U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996159A (en) * | 2012-12-03 | 2013-03-27 | 中国矿业大学 | Multiphase medium plugging device and method for gas extraction drill hole |
| CN102996159B (en) * | 2012-12-03 | 2015-04-29 | 中国矿业大学 | Multiphase medium plugging device and method for gas extraction drill hole |
| CN103485747A (en) * | 2013-09-23 | 2014-01-01 | 陕西煤业化工技术研究院有限责任公司 | Automatic pressure-adding borehole sealing device and method |
| CN103485747B (en) * | 2013-09-23 | 2016-08-10 | 陕西煤业化工技术研究院有限责任公司 | A kind of automatic compensation borehole sealing device and method |
| CN103711515A (en) * | 2013-12-31 | 2014-04-09 | 河南能源化工集团研究院有限公司 | Reusable multistage gasbag mucus gas extraction drilling and hole sealing device |
| CN104832209A (en) * | 2015-04-04 | 2015-08-12 | 西安科技大学 | Roadway advanced borehole diversion drainage goaf gas technology |
| CN105134129A (en) * | 2015-05-29 | 2015-12-09 | 河南理工大学 | Gas extraction hole sealing method based on radial strong expansion |
| CN105134129B (en) * | 2015-05-29 | 2017-11-07 | 河南理工大学 | Based on radially strength expansion gas pumping method for sealing |
| CN107859500A (en) * | 2017-10-13 | 2018-03-30 | 大连理工大学 | Rock body quality of mine drilling transmission increasing gas closure unit and measurement system |
| CN111852391A (en) * | 2020-08-07 | 2020-10-30 | 中煤科工集团重庆研究院有限公司 | Self-adaptive deformation gas extraction drilling and hole sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130522 Effective date of abandoning: 20150429 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130522 Effective date of abandoning: 20150429 |