CN106930724A - One kind is rich in water borehole sealing and gas pumping integral method - Google Patents
One kind is rich in water borehole sealing and gas pumping integral method Download PDFInfo
- Publication number
- CN106930724A CN106930724A CN201710248166.9A CN201710248166A CN106930724A CN 106930724 A CN106930724 A CN 106930724A CN 201710248166 A CN201710248166 A CN 201710248166A CN 106930724 A CN106930724 A CN 106930724A
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- China
- Prior art keywords
- water
- pipe
- gas pumping
- plug
- drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000005086 pumping Methods 0.000 title claims abstract description 63
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005553 drilling Methods 0.000 claims abstract description 44
- 238000000605 extraction Methods 0.000 claims abstract description 21
- 239000003651 drinking water Substances 0.000 claims abstract description 16
- 235000020188 drinking water Nutrition 0.000 claims abstract description 15
- 239000006210 lotion Substances 0.000 claims abstract description 11
- 230000010354 integration Effects 0.000 claims abstract description 7
- 238000007569 slipcasting Methods 0.000 claims abstract description 5
- 239000004575 stone Substances 0.000 claims abstract description 4
- 239000003245 coal Substances 0.000 claims description 12
- 239000008274 jelly Substances 0.000 claims description 6
- 235000015110 jellies Nutrition 0.000 claims description 5
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- 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)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Pipeline Systems (AREA)
- Earth Drilling (AREA)
Abstract
It is disclosed by the invention a kind of rich in water borehole sealing and gas pumping integral method, first by drinking-water pipe connection parallel with gas pumping pipe, some apertures are provided with apart from drinking-water pipe front end 80m positions, gauze is wrapped up at orifice region, plug one and plug two are bound in the rear and front end of gauze respectively；Drinking-water pipe and gas pumping pipe are put into bore inner；Grouting Pipe is inserted between plug one and plug two；Opening grouting pump will be absorbed water in lotion injection hole by underground blast, when gage pressure value increases suddenly, stop slip casting；Gas pumping pipe is connected with underground gas extraction pipeline, gas pumping is carried out by underground gas extraction pipeline, the water being rich in drilling is displaced outwardly under pipeline suction function, and water expands the flexible viscous body of reaction generation by aperture and water suction lotion, carries out borehole sealing.Meanwhile, drilling Neva stone crosses the extraction of gas pumping pipe, realizes sealing of hole and the gas pumping integration of rich water drilling.
Description
Technical field
Water borehole sealing and gas pumping integral method are rich in the present invention relates to one kind, belong to coal mine gas extraction
Field, is particularly suited in the sealing of hole rich in water drilling hole and gas pumping operation.
Background technology
Coal mine gas drainage has very important meaning for Gas Disasters such as preventing and treating gas explosion and coal and gas prominents
Justice, China's coal-mine gas control policy determines that highly gassy mine must first be taken out and adopts afterwards that gas pumping is the measure of effecting a permanent cure.At this stage,
China's coal-mine gas pumping rate is generally relatively low, and in addition to the influence of the geological conditions such as gas permeability of coal seam difference, topmost reason is
The sealing quality of drilling is poor, sealing of hole and gas pumping complex process, particularly in the mash gas pumping drilling rich in water, due to water
Influence, cause drilling and sealing effect poor, in addition sealing of hole failure.Existing mash gas pumping drilling method for sealing, all assumes that brill
When hole is anhydrous or aqueous less, the influence for ignoring the drilling and sealing material of water carries out drilling and sealing, however, being drilled in the overwhelming majority
In the case of sealing of hole, just cause drilling and sealing of poor quality just because of the influence of water in drilling, in addition containing a large amount of water watt
Sealing of hole is caused to fail in this extraction borehole.Meanwhile, the extraction process of gas is divided into two processes of borehole sealing and gas pumping, behaviour
Make cumbersome, process is complicated, the construction period time is long, and gas pumping efficiency is low.Therefore, in order to solve aqueous mash gas pumping drilling
Hole sealing technology problem, improves the extraction efficiency of gas, and urgent need is carried out to the sealing rich in water gas extraction borehole and gas pumping
Research, realizes that Integral synchronous are carried out, and meets the requirement of coal mine down-hole drilling gas pumping.
The content of the invention
Technical problem：The purpose of the present invention is directed to the weak point rich in water drilling and sealing and gas pumping technology, carries
For a kind of easy to operate, process is simple, gas pumping effect substantially, low cost rich in water borehole sealing and gas pumping integrally
Change method.
Technical scheme：
The present invention is rich in water borehole sealing and gas pumping integral method, it is characterised in that comprise the following steps：
A. by drinking-water pipe and gas pumping pipe by the parallel connection of joint, if being provided with the 80m positions of drinking-water pipe front end
Dry aperture, wraps up gauze at the drinking-water pipe containing orifice region；
B. spy water sensor is being bound at gas pumping pipe front end 10m, is visiting water sensor and adopted with data by lead
Storage is connected；
C. plug one and plug two are bound respectively in the rear and front end of gauze, while bundling gas pumping pipe respectively, make watt
One 3~4m of plug is stretched out in this drainage tube front end, meanwhile, the borehole space for making spy water sensor be between plug one and plug two
It is interior；
D., drinking-water pipe and gas pumping pipe are put into the bore inner in coal seam, plug two is in apart from borehole port 0.5m
At position, and gas pumping pipe is connected by valve with underground gas extraction pipeline；
E. Grouting Pipe is inserted into the borehole space between plug one and plug two；
F. Grouting Pipe and jelly suction pipe are connected by three-way cut-off valve, meanwhile, Grouting Pipe is connected with grouting pump, slurry will be taken out
Pipe is connected with suction pump；
G. grouting pump is opened, the water suction lotion in grouting pump is injected between plug one and plug two by underground blast
In space, when gage pressure value increases suddenly, stop slip casting；
H. valve is opened, gas pumping is carried out by underground gas extraction pipeline, the water being rich in drilling is in pipeline negative pressure
It is displaced outwardly under effect, water outflow aperture and water suction lotion expand the reaction flexible viscous body of generation, seal plug is first and plug
Space between two, meanwhile, drilling Neva stone crosses the extraction of gas pumping pipe, realizes the sealing of hole and gas pumping one of rich water drilling
Body；
I. visit water sensor and the moisture content of the viscous body of flexibility is transferred to data acquisition unit, when flexible viscous body when containing water saturation,
Valve is closed, suction pump is opened, the viscous body of flexibility is extracted out；
J. after being extracted out containing water saturated flexible viscous body, circulating repetition g, h and i steps, realize rich water drilling sealing of hole and watt
This extraction integration.
Beneficial effect：By adopting the above-described technical solution, injecting water suction lotion in rich water drilling, work as gas pumping
When, the moisture in drilling expands reaction by aperture with water suction lotion, to carrying out sealing of hole rich in water drilling hole, meanwhile, in well
In the presence of lower methane gas extraction pipeline, gas carries out extraction by gas pumping pipe, realize sealing rich in water drilling hole and watt
This extraction integration effect, solving causes the technical barrier of mash gas pumping drilling sealing of hole failure due to the presence of water, while simple
Change sealing of hole and gas pumping technique, the need for meeting underground coal mine for aqueous mash gas pumping drilling sealing of hole, its operation letter
List, low cost, effect are good, workload is small, with wide applicability.
Brief description of the drawings
Fig. 1 is of the invention a kind of rich in water borehole sealing and gas pumping integral method embodiment schematic diagram.
In figure：1-methane gas extraction pipeline, 2-coal seam, 3-drilling, 4-1-drinking-water pipe, 4-2-gas pumping pipe, 5-
Aperture, 6-gauze, 7-1-plug one, 7-2-plug two, 8-water, 9-water suction lotion, 10-grouting pump, 11-Grouting Pipe,
12-pressure gauge, 13-valve, 14-joint, 15-flexible viscous body, 16-data acquisition unit, 17-spy water sensor, 18-
Lead, 19-suction pump, 20-three-way cut-off valve, 21-jelly suction pipe.
Specific embodiment：
The specific embodiment of the invention is further described below in conjunction with the accompanying drawings：
Shown in Fig. 1, one kind is rich in water borehole sealing and gas pumping integral method：First, to construction drill in coal seam 2
3, drinking-water pipe 4-1 is provided with by the parallel connection of joint 14 with gas pumping pipe 4-2 at the 80m positions of drinking-water pipe 4-1 front ends
Some apertures 5, wrap up gauze 6 at the drinking-water pipe 4-1 containing the region of aperture 5；Tied up at gas pumping pipe 4-2 front end 10m
Surely water sensor 17 is visited, water sensor 17 is visited and is connected with data acquisition unit 16 by lead 18；Distinguish in the rear and front end of gauze 6
The binding 7-1 of the plug one and 7-2 of plug two, while bundling gas pumping pipe 4-2 respectively, makes gas pumping pipe 4-2 front ends stretch out stifled
First 3~4m of 7-1, meanwhile, make in the space of drilling 3 that spy water sensor 17 is between the 7-1 of plug one and the 7-2 of plug two；Will
Drinking-water pipe 4-1 and gas pumping pipe 4-2 are put into inside the drilling 3 in coal seam 2, the 7-2 of plug two is in 3 port 0.5m of distance drilling
At position, and gas pumping pipe 4-2 is connected by valve 13 with underground gas extraction pipeline 1；Grouting Pipe 11 is inserted into stifled
In the space of drilling 3 between first 7-1 and the 7-2 of plug two；Grouting Pipe 11 and jelly suction pipe 21 are connected by three-way cut-off valve 20,
Meanwhile, Grouting Pipe 11 is connected with grouting pump 10, jelly suction pipe 21 is connected with suction pump 19；Grouting pump 10 is opened, by underground
In the space that blast injects between the 7-1 of plug one and the 7-2 of plug two the water suction lotion 9 in grouting pump 10, when pressure gauge 12 is pressed
When force value increases suddenly, stop slip casting；Valve 13 is opened, gas pumping is carried out by underground gas extraction pipeline 1, in drilling 3
The water 8 being rich in is displaced outwardly under pipeline suction function, and it is flexible that the outflow aperture 6 of water 8 expands reaction generation with water suction lotion 9
Viscous body 15, the space between the first 7-1 of seal plug and the 7-2 of plug two, meanwhile, 3 Neva stones of drilling are crossed gas pumping pipe 4-2 and are taken out
Go out, realize sealing of hole and the gas pumping integration of rich water drilling；Water sensor 17 is visited to be transferred to the moisture content of the viscous body 15 of flexibility
Data acquisition unit 16, when flexible viscous body 15 when containing water saturation, closes valve 13, opens suction pump 19, flexibility is glued into body 15 and is extracted out；
After being extracted out containing water saturated flexible viscous body 15, circulating repetition sealing and gas pumping step, realize rich water drilling sealing of hole and
Gas pumping integration, solving causes the technical barrier of mash gas pumping drilling sealing of hole failure due to the presence of water, meets coal
Under mine for aqueous mash gas pumping drilling sealing of hole the need for, its simple to operate, low cost, effect are good, workload is small, with wide
General practicality.
Claims (1)
1. it is a kind of to be rich in water borehole sealing and gas pumping integral method, it is characterised in that to comprise the following steps：
A. by drinking-water pipe (4-1) and gas pumping pipe (4-2) by the parallel connection of joint (14), apart from drinking-water pipe (4-1) front end
Some apertures (5) are provided with 80m positions, gauze (6) is wrapped up at drinking-water pipe (4-1) place containing aperture (5) region；
B. spy water sensor (17) is being bound at gas pumping pipe (4-2) front end 10m, is visiting water sensor (17) by lead
(18) it is connected with data acquisition unit (16)；
C. plug one (7-1) and plug two (7-2) are bound respectively in the rear and front end of gauze (6), while binding gas is taken out respectively
Pipe (4-2) is adopted, gas pumping pipe (4-2) front end is stretched out plug one (7-1) 3~4m, meanwhile, it is in spy water sensor (17)
In drilling (3) space between plug one (7-1) and plug two (7-2)；
D. the drilling (3) for drinking-water pipe (4-1) and gas pumping pipe (4-2) being put into coal seam (2) is internal, makes plug two (7-2) place
At distance drilling (3) port 0.5m positions, and by gas pumping pipe (4-2) by valve (13) and underground gas extraction pipeline
(1) connect；
E. in drilling (3) space Grouting Pipe (11) being inserted between plug one (7-1) and plug two (7-2)；
F. Grouting Pipe (11) and jelly suction pipe (21) are connected by three-way cut-off valve (20), meanwhile, by Grouting Pipe (11) and slip casting
Pump (10) is connected, and jelly suction pipe (21) is connected with suction pump (19)；
G. open grouting pump (10), by underground blast by grouting pump (10) water suction lotion (9) inject plug one (7-1) and
In space between plug two (7-2), when pressure gauge (12) pressure value increases suddenly, stop slip casting；
H. valve (13) is opened, gas pumping is carried out by underground gas extraction pipeline (1), the water (8) being rich in drilling (3) exists
It is displaced outwardly under pipeline suction function, water (8) flows out aperture (6) and expands the flexible viscous body of reaction generation with water suction lotion (9)
(15), the space between seal plug first (7-1) and plug two (7-2), meanwhile, drilling (3) Neva stone crosses gas pumping pipe
(4-2) is extracted out, realizes sealing of hole and the gas pumping integration of rich water drilling；
I. visit water sensor (17) and the moisture content of the viscous body (15) of flexibility is transferred to data acquisition unit (16), when the viscous body (15) of flexibility
When containing water saturation, valve (13) is closed, open suction pump (19), the viscous body (15) of flexibility is extracted out；
J. after being extracted out containing water saturated flexible viscous body (15), circulating repetition g, h and i steps, realize rich water drilling sealing of hole and watt
This extraction integration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248166.9A CN106930724B (en) | 2017-04-17 | 2017-04-17 | One kind being rich in water borehole sealing and gas drainage integral method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710248166.9A CN106930724B (en) | 2017-04-17 | 2017-04-17 | One kind being rich in water borehole sealing and gas drainage integral method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930724A true CN106930724A (en) | 2017-07-07 |
| CN106930724B CN106930724B (en) | 2019-03-15 |
Family
ID=59437720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710248166.9A Active CN106930724B (en) | 2017-04-17 | 2017-04-17 | One kind being rich in water borehole sealing and gas drainage integral method |
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| Country | Link |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676055A (en) * | 2017-11-23 | 2018-02-09 | 山东科技大学 | A kind of mash gas pumping drilling method for blocking using S-shaped structural traps bayonet socket |
| CN108561176A (en) * | 2018-04-03 | 2018-09-21 | 焦作市美格安矿业科技有限公司 | A kind of mash gas pumping drilling automatic sparse blocks up permeability improvement device and method |
| CN109025972A (en) * | 2018-07-27 | 2018-12-18 | 辽宁工程技术大学 | A kind of gas-water separation formula uplink drilling gas pressure measuring unit and method |
| CN110145293A (en) * | 2019-06-20 | 2019-08-20 | 中国矿业大学 | A kind of Poly-generation is without well formula coal underground gasification method |
| CN112177564A (en) * | 2020-09-17 | 2021-01-05 | 三峡大学 | High-pressure jet grouting system for building underground concealed reservoir and building method |
| CN117703299A (en) * | 2024-02-06 | 2024-03-15 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676055A (en) * | 2017-11-23 | 2018-02-09 | 山东科技大学 | A kind of mash gas pumping drilling method for blocking using S-shaped structural traps bayonet socket |
| CN108561176A (en) * | 2018-04-03 | 2018-09-21 | 焦作市美格安矿业科技有限公司 | A kind of mash gas pumping drilling automatic sparse blocks up permeability improvement device and method |
| CN108561176B (en) * | 2018-04-03 | 2023-06-23 | 焦作市美格安矿业科技有限公司 | Automatic blocking and permeability-increasing device and method for gas extraction drilling |
| CN109025972A (en) * | 2018-07-27 | 2018-12-18 | 辽宁工程技术大学 | A kind of gas-water separation formula uplink drilling gas pressure measuring unit and method |
| CN110145293A (en) * | 2019-06-20 | 2019-08-20 | 中国矿业大学 | A kind of Poly-generation is without well formula coal underground gasification method |
| CN110145293B (en) * | 2019-06-20 | 2020-07-31 | 中国矿业大学 | Poly-generation well-free underground coal gasification method |
| CN112177564A (en) * | 2020-09-17 | 2021-01-05 | 三峡大学 | High-pressure jet grouting system for building underground concealed reservoir and building method |
| CN117703299A (en) * | 2024-02-06 | 2024-03-15 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
| CN117703299B (en) * | 2024-02-06 | 2024-05-14 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
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