CN207048812U - A kind of gas pumping device based on hydrofracturing - Google Patents
A kind of gas pumping device based on hydrofracturing Download PDFInfo
- Publication number
- CN207048812U CN207048812U CN201720403107.XU CN201720403107U CN207048812U CN 207048812 U CN207048812 U CN 207048812U CN 201720403107 U CN201720403107 U CN 201720403107U CN 207048812 U CN207048812 U CN 207048812U
- Authority
- CN
- China
- Prior art keywords
- gas pumping
- high pressure
- outer tube
- hydrofracturing
- pumping device
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of gas pumping device based on hydrofracturing, including hydrofracturing device and gas pumping device, the hydrofracturing device is high pressure induction pipe and outer tube composition, high pressure induction pipe welds with outer tube, water pressure gauge and valve are installed on high pressure induction pipe, the left end of outer tube is provided with sealing flange, sealing flange is fixedly connected with fixing bolt with coal body, sealing felt collar is accompanied between outer tube and extraction borehole, the gas pumping device is gas pumping pipe and valve composition.When carrying out gas pumping, water under high pressure enters extraction borehole by high pressure induction pipe, then hole wall fracturing is carried out the extraction of gas by water under high pressure again.
Description
Technical field
The utility model belongs to mine gas extraction apparatus field, specifically a kind of gas pumping dress based on hydrofracturing
Put.
Background technology
Present numerous domestic colliery is all threatened by coal mine gas from explosion, and mainly gas is used during drawing out methane
Extraction drilling rod is placed directly into extraction borehole, and the method is simple, but during extraction, the concentration of gas is relatively low, and
Effectively gas can not be extracted out, a large amount of gas are still present in coal body, still threaten the safety in production in colliery, therefore, if
A kind of device of efficiently mash gas extraction is counted, is current urgent need technical problems to be solved.
The content of the invention
Technical problem to be solved in the utility model be just to provide it is a kind of with efficient mash gas extraction function based on water
Suppress the gas pumping device split.
Technical scheme is used by the utility model solves its technical problem：
A kind of gas pumping device based on hydrofracturing, by hydrofracturing device and gas pumping device two parts group
Into.
What the hydrofracturing device was made up of high pressure induction pipe and outer tube, high pressure induction pipe welds with outer tube.
Water pressure gauge and valve are installed, the left end of outer tube is provided with sealing flange, and sealing flange is used on high pressure induction pipe
Fixing bolt is fixedly connected with coal body, and sealing felt collar is accompanied between outer tube and extraction borehole.
The end of the outer tube is disposed with uniform circular aperture.
What the gas pumping device was made up of gas pumping pipe and valve, gas pumping pipe and valve are connected by screw thread
Connect.
Brief description of the drawings
Further clear, complete explanation is done to the utility model below in conjunction with the accompanying drawings.
Fig. 1 is gas pumping apparatus structure schematic diagram of the utility model based on hydrofracturing.
Fig. 2 is gas pumping device specific embodiment schematic diagram of the utility model based on hydrofracturing.
In figure, 1, gas pumping pipe, 2, valve, 3, high pressure induction pipe, 4, water pressure gauge, 5, valve, 6, outer tube, 7, fixed
Bolt, 8, sealing flange, 9, sealing felt collar, 10, coal body, 11, extraction borehole.
Embodiment
The utility model discloses a kind of gas pumping device based on hydrofracturing, in order that of the present utility model excellent
Point, technical scheme are clearer, clear and definite, do further clear, complete theory to the utility model with reference to specific embodiment
It is bright.
A kind of gas pumping device based on hydrofracturing, including hydrofracturing device and gas pumping device, the water
Pressure fracturing device is that high pressure induction pipe 3 and outer tube 6 form, and high pressure induction pipe 3 welds with outer tube 6, high pressure induction pipe 3
On water pressure gauge 4 and valve 5 are installed, the left end of outer tube 6 is provided with sealing flange 8, sealing flange 8 fixing bolt 7 and coal body
10 are fixedly connected, and sealing felt collar 9 are accompanied between outer tube 6 and extraction borehole 11, the gas pumping device is the He of gas pumping pipe 1
What valve 2 formed.
A kind of substantially method of work of the gas pumping device based on hydrofracturing of the utility model：Carrying out gas pumping
Before, extraction borehole 11 is dug first on coal body 10, outer tube 6 is placed into extraction borehole 11, outer tube 6 and extraction borehole 11 it
Between place on seal felt collar 9, be then fastened and fixed bolt 7 so that sealing flange 8 is fixedly connected with coal body 10.Taken out carrying out gas
When adopting, valve 5 is first turned on, water under high pressure enters outer tube 6 by high pressure induction pipe 3 through water pressure gauge 4, and water under high pressure is last from outer tube 6
The aperture at end sprays, and monitors hydraulic pressure in real time by water pressure gauge 4, the hole wall of high hydraulic pressure impact extraction borehole 11, causes hole wall to occur
A large amount of cracks, valve 5 and Open valve 2 are then shut off, carry out the extraction of gas to drilling by gas pumping pipe 1.
Operation principle of the present utility model：When carrying out gas pumping, the valve on high pressure induction pipe is first turned on, it is high
Pressure water enters outer tube by high pressure induction pipe through water pressure gauge, and water under high pressure is from the aperture ejection of outer pipe end, using hydraulic pressure by hole
Wall fracturing, the valve being then shut off on high pressure induction pipe simultaneously open the valve on gas pumping pipe, and gas is carried out again to drilling
Extraction.
Claims (1)
1. a kind of gas pumping device based on hydrofracturing, it is characterized in that, including hydrofracturing device and gas pumping device,
The hydrofracturing device is high pressure induction pipe and outer tube composition, and the high pressure induction pipe welds with outer tube, the height
Water pressure gauge and valve are installed, the left end of the outer tube is provided with sealing flange, and the sealing flange is with admittedly on pressure water water inlet pipe
Determine bolt to be fixedly connected with coal body, sealing felt collar is accompanied between the outer tube and extraction borehole, the gas pumping device is watt
This drainage tube and valve composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403107.XU CN207048812U (en) | 2017-04-18 | 2017-04-18 | A kind of gas pumping device based on hydrofracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720403107.XU CN207048812U (en) | 2017-04-18 | 2017-04-18 | A kind of gas pumping device based on hydrofracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207048812U true CN207048812U (en) | 2018-02-27 |
Family
ID=61489930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720403107.XU Expired - Fee Related CN207048812U (en) | 2017-04-18 | 2017-04-18 | A kind of gas pumping device based on hydrofracturing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207048812U (en) |
-
2017
- 2017-04-18 CN CN201720403107.XU patent/CN207048812U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180227 Termination date: 20190418 |