CN109025890B - Water outlet detection and hole sealing drainage device for coal mine gas measurement drilling - Google Patents
Water outlet detection and hole sealing drainage device for coal mine gas measurement drilling Download PDFInfo
- Publication number
- CN109025890B CN109025890B CN201810881734.3A CN201810881734A CN109025890B CN 109025890 B CN109025890 B CN 109025890B CN 201810881734 A CN201810881734 A CN 201810881734A CN 109025890 B CN109025890 B CN 109025890B
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- Prior art keywords
- pipe
- capsule
- hole
- grouting
- water
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Classifications
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- 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
- E21B33/12—Packers; Plugs
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- 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
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
Abstract
The invention discloses a water outlet detection and hole sealing drainage device for a coal mine gas measurement drill hole, which comprises a drill hole, a first capsule, a grouting pipe, a second capsule, a drainage pipe, a gas pipe and a water stopping expansion rubber sleeve, wherein the first capsule and the second capsule are arranged in the drill hole, the drill hole is communicated with a pressure measuring chamber, a grouting plugging cavity is arranged in the drill hole between the first capsule and the second capsule, and the first capsule and the second capsule are both connected with a viscose pipe; according to the invention, the first capsule and the second capsule are used for primarily plugging the drill hole, then the grouting pipe is used for grouting to secondarily plug the drill hole, the effect of plugging the drill hole is good, the water-stopping expansion rubber sleeve is expanded when meeting water, water seepage is avoided, the first capsule and the second capsule are closer to the inner wall of the drill hole, the drain valve on the water outlet pipe is slowly opened, and the actual numerical value of the gas pressure in the pressure measuring chamber can be conveniently detected; the water in the pressure measuring chamber can be discharged, so that a large amount of water accumulated in the pressure measuring chamber can be discharged in time, and the accuracy of gas pressure measurement is improved.
Description
Technical Field
The invention relates to the technical field of coal mine gas safety, in particular to a water outlet detection and hole sealing drainage device for a coal mine gas measurement drill hole.
Background
The underground hydrogeological conditions of the coal mine are complex, a large amount of water exploration and grouting drilling needs to be constructed in water prevention and control projects, water yields of a plurality of layers are different in the drilling construction process, grouting needs to be carried out immediately after most drilling constructions are completed, and the water yielding layers are difficult to accurately judge and observe timely and accurately.
In addition, in the process of exploration in the early period of a coal mine, a plurality of drilling holes are poorly sealed or not sealed, so that great hidden danger is formed for coal mine safety exploitation.
The existing water yield observation mostly adopts a volumetric method to observe the water yield, but the speed is slow, the requirement of drilling fast construction cannot be met, the water yield is mostly estimated by experience in the drilling construction process, and because the subjective factors of people and the actual experience of people are different, certain errors exist in the estimation of the water yield of the drilled hole, and even the water yield position cannot be judged in time; the existing water yield measurement function is single, the gas pressure in a drill hole cannot be measured, the measurement of the gas pressure needs to be measured again, and time and labor are wasted.
In addition, the ground is mainly adopted for sealing in advance aiming at bad drill holes, and once a water inrush accident occurs, the underground drilling treatment modes are few; because the water quality has long service life and more sulfur and environment shows moisture, the plugging part of the drill hole is easy to crack to cause water inrush, and how to successfully plug water is a great problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a water outlet detection and hole sealing drainage device for a coal mine gas measurement drill hole, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a water outlet detection and hole sealing drainage device for a coal mine gas measurement drill hole comprises a drill hole, a first capsule, a grouting pipe, a viscose pipe, a second capsule, a drainage pipe, a gas pipe and a water stopping expansion rubber sleeve, the first capsule and the second capsule are arranged in a drill hole, the drill hole is communicated with a pressure measuring chamber, a water stopping expansion rubber sleeve is laid on the inner wall of the drill hole between the first capsule and the second capsule, a grouting plugging cavity is arranged in the drill hole between the first capsule and the second capsule, the first capsule and the second capsule are both connected with a liquid sticking pipe, a grouting pipe hole, a drainage pipe hole and a gas pipe hole are formed in the first capsule, a drainage pipe hole and a gas pipe hole are formed in the second capsule, a grouting pipe penetrates through the grouting pipe hole, a drainage pipe penetrates through the drainage pipe hole, a gas pipe penetrates through the gas pipe hole, the front end of the drainage pipe is communicated with the pressure measuring chamber and is placed in accumulated water at the bottom of the pressure measuring chamber, and the rear end of the drainage pipe; one end of a viscose pipe is communicated with the second capsule, the viscose pipe passes through a viscose pipe hole of the first capsule and is communicated with the interior of the first capsule through a viscose hole formed in the viscose pipe hole, the other end of the viscose pipe is respectively connected with a viscose pump and a liquid suction pump, a liquid inlet valve is arranged between the viscose pump and the viscose pipe, and a liquid outlet valve is arranged between the liquid suction pump and the viscose pipe; the front part of the grouting pipe is arranged in the grouting plugging cavity, a plurality of grouting holes are formed in the inner wall of the grouting pipe and communicated with the grouting plugging cavity, the rear part of the grouting pipe is connected with the output end of a grouting pump, and the input end of the grouting pump is connected with a slurry supply pipe.
Furthermore, the grouting pipe hole, the drain pipe hole and the gas pipe hole are all through holes which are not communicated with the interior of the capsule.
Furthermore, a slag discharging valve is installed on the blowout prevention slag discharging pipe, and a water discharging valve and a water outlet flow meter are installed on the water discharging pipe.
Further, the front end of the gas pipe is communicated with the pressure measuring chamber, the rear end of the gas pipe is communicated with the pressure measuring pipe, and the pressure gauge is installed on the pressure measuring pipe.
In conclusion, compared with the prior art, the invention has the following beneficial effects:
according to the invention, the first capsule and the second capsule are used for primarily plugging the drill hole, then the grouting pipe is used for grouting to secondarily plug the drill hole, the effect of plugging the drill hole is good, the water-stopping expansion rubber sleeve is expanded when meeting water, water seepage is avoided, the first capsule and the second capsule are closer to the inner wall of the drill hole, the drain valve on the water outlet pipe is slowly opened, and the actual numerical value of the gas pressure in the pressure measuring chamber can be conveniently detected; the water in the pressure measuring chamber can be discharged, so that a large amount of water accumulated in the pressure measuring chamber can be discharged in time, and the accuracy of gas pressure measurement is improved.
To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a first capsule according to the present invention.
FIG. 3 is a schematic cross-sectional view of a first capsule of the present invention.
Reference numerals: 1-drilling, 2-first capsule, 3-mucus hole, 4-grouting plugging cavity, 5-grouting hole, 6-grouting pipe, 7-mucus pipe, 8-second capsule, 9-pressure measuring chamber, 10-drain pipe, 11-gas pipe, 12-water stopping expansion rubber sleeve, 13-through hole, 14-blowout prevention slag pipe, 15-slag discharge valve, 16-drain valve, 17-water outlet flow meter, 18-water outlet pipe, 19-pressure gauge, 20-pressure measuring pipe, 21-slurry supply pipe, 22-slurry injection pump, 23-viscose pump, 24-liquid inlet valve, 25-liquid pump, 26-liquid outlet valve, 27-mucus pipe hole, 28-grouting pipe hole, 29-drain pipe hole and 30-gas pipe hole.
Detailed Description
The technical solution of the present invention is further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, a water outlet detection and hole sealing drainage device for a coal mine gas measurement drill hole comprises a drill hole 1, a first capsule 2, a grouting pipe 6, a viscose pipe 7, a second capsule 8, a drainage pipe 10, a gas pipe 11 and a water stopping expansion rubber sleeve 12, the first capsule 2 and the second capsule 8 are arranged in the drill hole 1, the drill hole 1 is communicated with a pressure measuring chamber 9, the pressure measuring chamber 9 is arranged in the coal rock layer, be equipped with slip casting shutoff chamber 4 in the drilling 1 between first capsule 2 and the second capsule 8, laid stagnant water inflation gum cover 12 on the drilling 1 inner wall between first capsule 2 and the second capsule 8, stagnant water inflation gum cover 12 is used for filling the gap before first capsule 2 and second capsule 8 and the drilling 1 inner wall, avoids the infiltration, and stagnant water inflation gum cover 12 meets water inflation for it is inseparabler between first capsule 2 and second capsule 8 and the drilling 1 inner wall.
The utility model discloses a drilling hole sealing device, including first capsule 2, second capsule 8, mucus pipe 7, mucus pump 23 and drawing liquid pump 25, mucus pipe 7 passes mucus pipe hole 27 of first capsule 2 and through the inside intercommunication of mucus hole 3 and first capsule 2 that set up on it, mucus pump 23 and drawing liquid pump 25 are connected respectively to the mucus pipe 7 other end, install feed liquor valve 24 between mucus pump 23 and the mucus pipe 7, install out liquid valve 26 between drawing liquid pump 25 and the mucus pipe 7, when first capsule 2 and second capsule 8 put into drilling hole 1, start mucus pump 23 and open feed liquor valve 24, go into first capsule 2 and second capsule 8 through the mucus pipe 7 pump with mucus, first capsule 2 and second capsule 8 expand and fix in drilling hole 1, carry out hole sealing preliminary operation to drilling hole 1.
The grouting pipe hole 28, the drainage pipe hole 29 and the gas pipe hole 30 are formed in the first capsule 2, the drainage pipe hole 29 and the gas pipe hole 30 are formed in the second capsule 8, the grouting pipe hole 28, the drainage pipe hole 29 and the gas pipe hole 30 are through holes 13 which are not communicated with the interior of the capsule, the grouting pipe 6 penetrates through the grouting pipe hole 28, the drainage pipe 10 penetrates through the drainage pipe hole 29, the gas pipe 11 penetrates through the gas pipe hole 30, and after the first capsule 2 and the second capsule 8 are filled with mucus and expand, the grouting pipe 6, the drainage pipe 10 and the gas pipe 11 in the through holes 13 are clamped and clamped.
The anterior setting of slip casting pipe 6 is in slip casting shutoff chamber 4, has seted up a plurality of injected holes 5 and slip casting shutoff chamber 4 intercommunication on its inner wall, and 6 rear connections 22's of slip casting pump output of slip casting pipe, and grout supply pipe 21 is connected to 22's input of slip casting pump, and the shutoff thick liquid gets into slip casting pipe 6 after the pump sending of slip casting pump 22 by confession thick liquid pipe 21, pours into slip casting shutoff chamber 4 into by injected holes 5 in, and the shutoff thick liquid is packed the shutoff in drilling 1.
The front end of the water discharge pipe 10 is communicated with the pressure measuring chamber 9 and is arranged in accumulated water at the bottom of the pressure measuring chamber 9, the rear end of the water discharge pipe 10 is communicated with the blowout prevention slag discharge pipe 14 and the water discharge pipe 18, the slag discharge valve 15 is installed on the blowout prevention slag discharge pipe 14, the water discharge valve 16 and the water discharge flowmeter 17 are installed on the water discharge pipe 18, drilling blowout prevention can be achieved, the water quantity value can be read out accurately from the water discharge flowmeter, metering is accurate, and installation and use are convenient.
11 front end intercommunication pressure-measuring chamber 9 of gas pipe, 11 rear end intercommunication pressure-measuring pipe 20 of gas pipe, install manometer 19 on the pressure-measuring pipe 20, when surveing gas pressure, use first capsule 2 and second capsule 8 to the preliminary shutoff of drilling 1, then by slip casting 6 grout pair drilling 1 secondary shutoff by slip casting, when manometer 19 reading reaches a certain position, slowly open drain valve 16 on the outlet pipe 18, see whether there is water along the drain pipe 10 to come, slowly open, if there is gas discharge, then close immediately, the numerical value that this moment manometer 19 shows is the actual numerical value of gas pressure in the pressure-measuring chamber 9. If water flows out, the water is slowly discharged, after the water is discharged, the water discharge valve 16 on the water outlet pipe 18 is quickly closed, and the displayed data is also the actual numerical value of the gas pressure in the pressure measuring chamber 9. The water in the pressure measuring chamber 9 can be discharged, so that a large amount of water accumulated in the pressure measuring chamber 9 can be discharged in time, and the accuracy of measuring the gas pressure is improved.
The technical principle of the present invention has been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. Other embodiments of the invention will occur to those skilled in the art without the exercise of inventive faculty, and such will fall within the scope of the invention.
Claims (4)
1. A water outlet detection and hole sealing drainage device for coal mine gas measurement drill holes comprises a drill hole (1), a first capsule (2), an injection pipe (6), a viscous liquid pipe (7), a second capsule (8), a drainage pipe (10), a gas pipe (11) and a water stopping expansion rubber sleeve (12), and is characterized in that the first capsule (2) and the second capsule (8) are arranged in the drill hole (1), the drill hole (1) is communicated with a pressure measuring chamber (9), a grouting plugging cavity (4) is arranged in the drill hole (1) between the first capsule (2) and the second capsule (8), the water stopping expansion rubber sleeve (12) is laid on the inner wall of the drill hole (1) between the first capsule (2) and the second capsule (8), the viscous liquid pipe (7) is connected with the first capsule (2), the first capsule (2) is provided with a grouting pipe hole (28), a drainage pipe hole (29) and a gas pipe hole (30), a water discharge pipe hole (29) and a gas pipe hole (30) are formed in the second capsule (8), a grouting pipe (6) penetrates through the grouting pipe hole (28), a water discharge pipe (10) penetrates through the water discharge pipe hole (29), a gas pipe (11) penetrates through the gas pipe hole (30), the front end of the water discharge pipe (10) is communicated with the pressure measuring chamber (9) and is placed in accumulated water at the bottom of the pressure measuring chamber (9), and the rear end of the water discharge pipe (10) is communicated with the blowout-preventing slag discharging pipe (14) and the water outlet pipe (18); one end of a viscose pipe (7) is communicated with the second capsule (8), the viscose pipe (7) passes through a viscose pipe hole (27) of the first capsule (2) and is communicated with the interior of the first capsule (2) through a viscose hole (3) formed in the viscose pipe hole, the other end of the viscose pipe (7) is respectively connected with a viscose pump (23) and a liquid pump (25), a liquid inlet valve (24) is installed between the viscose pump (23) and the viscose pipe (7), and a liquid outlet valve (26) is installed between the liquid pump (25) and the viscose pipe (7); the front part of the grouting pipe (6) is arranged in the grouting plugging cavity (4), a plurality of grouting holes (5) are formed in the inner wall of the grouting pipe and communicated with the grouting plugging cavity (4), the rear part of the grouting pipe (6) is connected with the output end of a grouting pump (22), and the input end of the grouting pump (22) is connected with a slurry supply pipe (21).
2. The water outlet detection and hole sealing drainage device for the coal mine gas measurement drill hole according to claim 1, wherein the grouting pipe hole (28), the drainage pipe hole (29) and the gas pipe hole (30) are all through holes (13) which are not communicated with the interior of the capsule.
3. The water outlet detection and hole sealing drainage device for the coal mine gas measurement drill hole according to claim 1, wherein a slag discharge valve (15) is installed on the blowout prevention slag pipe (14), and a drainage valve (16) and a water outlet flow meter (17) are installed on the water outlet pipe (18).
4. A water outlet detection and hole sealing drainage device for a coal mine gas measurement drill hole according to claim 1, wherein the front end of the gas pipe (11) is communicated with a pressure measuring chamber (9), the rear end of the gas pipe (11) is communicated with a pressure measuring pipe (20), and a pressure gauge (19) is installed on the pressure measuring pipe (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018207988171 | 2018-05-15 | ||
| CN201820798817 | 2018-05-15 |
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| Publication Number | Publication Date |
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| CN109025890A CN109025890A (en) | 2018-12-18 |
| CN109025890B true CN109025890B (en) | 2020-11-24 |
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| CN201810881734.3A Expired - Fee Related CN109025890B (en) | 2018-05-15 | 2018-07-28 | Water outlet detection and hole sealing drainage device for coal mine gas measurement drilling |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110145272B (en) * | 2019-06-13 | 2021-04-13 | 辽宁工程技术大学 | Gas extraction and coal seam water injection dual-purpose hole sealing device and using method thereof |
| CN110219616A (en) * | 2019-06-19 | 2019-09-10 | 天地科技股份有限公司 | A kind of coal-bed gas pressure measuring device and its measurement method |
| CN114991704B (en) * | 2022-07-16 | 2024-03-05 | 山东理工大学 | Intelligent method for filling, reinforcing and plugging materials for engineering |
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| CN204571973U (en) * | 2015-04-13 | 2015-08-19 | 中国矿业大学 | Novel descending hole capsule-pressure mucus sealing of hole draining pressure tester |
| CN204827340U (en) * | 2015-06-15 | 2015-12-02 | 华北科技学院 | Novel capsule hole packer |
| CN205000965U (en) * | 2015-09-30 | 2016-01-27 | 河南理工大学 | Moisture drilling gas piezometry device |
| CN205297457U (en) * | 2016-01-06 | 2016-06-08 | 河南理工大学 | A hole sealing device for determining gas pressure |
| CN107524435A (en) * | 2017-10-09 | 2017-12-29 | 开滦(集团)有限责任公司技术中心 | Aqueous determination of coal seam gas pressure device and assay method |
| CN207229094U (en) * | 2017-10-09 | 2018-04-13 | 开滦(集团)有限责任公司技术中心 | Aqueous determination of coal seam gas pressure device |
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2018
- 2018-07-28 CN CN201810881734.3A patent/CN109025890B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832128A (en) * | 2010-04-30 | 2010-09-15 | 华北科技学院 | Active device and method for measuring pressure of coal-bed gas |
| CN202417425U (en) * | 2012-01-16 | 2012-09-05 | 河北同成矿业科技有限公司 | Grouting hole packer |
| CN103089309A (en) * | 2013-01-22 | 2013-05-08 | 中国矿业大学 | Actual measurement method of gas expansion energy emitted by coal seams for accurately predicting coal and gas outburst risks and measurement device thereof |
| CN204571973U (en) * | 2015-04-13 | 2015-08-19 | 中国矿业大学 | Novel descending hole capsule-pressure mucus sealing of hole draining pressure tester |
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| CN109025890A (en) | 2018-12-18 |
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