CN206860160U - The gas yield-increasing apparatus of coal measures three - Google Patents
The gas yield-increasing apparatus of coal measures three Download PDFInfo
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- CN206860160U CN206860160U CN201720748219.9U CN201720748219U CN206860160U CN 206860160 U CN206860160 U CN 206860160U CN 201720748219 U CN201720748219 U CN 201720748219U CN 206860160 U CN206860160 U CN 206860160U
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Abstract
The utility model discloses a kind of gas yield-increasing apparatus of coal measures three, including through coal seam（4）, rammell（5）, compacted zone（6）Outer tube（2）, the outer tube（2）Inside it is provided with inner tube（3）, said inner tube（3）And outer tube（2）On be equipped with sieve aperture；Said inner tube（3）It is upper to be located at coal seam（4）Position is provided with microwave generator（9）, the microwave generator（9）Pass through wire（8）With the power supply positioned at ground（7）Connection；Said inner tube（3）Top passes through pipeline and steam valve（11）With the steam generator positioned at ground（1）Connection, said inner tube（3）Upper end is installed by well head open and close valve（10）.This equipment heats reservoir by microwave in coal seam and produces microcrack and increase desorption quantity, produce vapor and carry out gas drive to improve yield, increase desorption quantity is heated to improve the equipment of yield using overheated steam in rammell and compacted zone, its floor space is small, low cost,, the significant effect small to reservoir pollution by the water injection stratum of output.
Description
Technical field
The utility model belongs to energy extraction field, is related to a kind of gas yield-increasing apparatus of coal measures three, and the specially gas of coal measures three stores up
Layer heating and Reservoir Fracture expansion equipment.
Background technology
As natural gas resource is using more and more extensive, people start sight being put into the coal with exploration and development value
It is among three gas, the gas bag of coal measures three includes coal bed gas, shale gas, three kinds of gases of tight gas.Influenceed by occurrence status, coal bed gas,
The output process of shale gas includes desorption, diffusion, seepage flow enter fissure system, the gas inflow pit shaft output in fissure system,
The few desorption processes of sandstone gas.Gas output causes reservoir pressure to decline, and gas can be from reservoir access wall so that reservoir
There is pressure differential between pit shaft, the output of gas make it that more adsorbed gas desorptions are free gas, and free gas passes through seepage flow
Hole or microcrack are reached, then by diffusing into big crack, finally enters pit shaft output stratum.
Single reservoir exploitation not only yields poorly, development difficulty is big, and development cost is high, should not carry out individual layer exploitation.From
Improve reserves exploitation degree, reduction individual layer cost of winning, raising Single Well Economic yield angle to set out, the exploitation to coal measures gas reservoir should
By the way of combination producing.There is no effective method currently for combination producing.The heating of the gas reservoir of coal measures three is herein proposed
And Reservoir Fracture expansion equipment.
The content of the invention
The purpose of this utility model is to provide one kind and passes through microwave heating reservoir generation microcrack and increase desorption in coal seam
Amount, produce vapor and carry out gas drive to improve yield, overheated steam heating increase desorption quantity is utilized in rammell and compacted zone
To improve the equipment of yield, its floor space is small, and low cost is small to reservoir pollution, significant effect, can apply to the gas of coal measures three
Reservoir.
The utility model adopts the following technical scheme that realization：
A kind of gas yield-increasing apparatus of coal measures three, including through coal seam, rammell, compacted zone outer tube, set in the outer tube
There is inner tube, sieve aperture is equipped with said inner tube and outer tube；Microwave generator is installed positioned at coal seam position in said inner tube, it is described
Microwave generator is connected by wire with the power supply positioned at ground；Said inner tube top is by pipeline and steam valve and is located at ground
Steam generator connection, said inner tube upper end installation well head open and close valve.
In inner and outer tubes positioned at coal bed gas, shale gas, the rock stratum position where tight gas be provided with overheated steam and
The sieve aperture of gas output after desorption.First, steam off valve, steam generator do not work.Power supply is by wire by power Transmission
To microwave generator, microwave generator produces microwave, and caused microwave is launched to coal seam, and microwave is launched by the sieve aperture on outer tube
Microwave, make the rise of coal seam temperature, when 20-30 degrees Celsius of mean temperature rise in the range of coal seam is 50 meters of center of circle radius using well,
The power supply of microwave generator is closed, by closing well head open and close valve, coal bed gas well is closed after 3-4 days, opens well head open and close valve, quilt
The coal seam of heating can produce microcrack, and the coal bed gas desorption rate in coal seam improves, and expanded by heating, successively by outer tube and interior
Sieve aperture on pipe, is flowed into inner tube, and the water in coal seam flows to inner tube, output ground also by screen casing.Aerogenesis for a period of time after, when
No longer exploited after yield is relatively low, the output Water Sproading in coal seam is now entered into steam generator, open evaporator valve, steam generation
Overheated steam caused by device is by inner tube, and under the protection of inner tube lateral septal thermosphere, the thermal loss of overheated steam is less,
The sieve aperture that overheated steam is passed sequentially through on the sieve aperture and outer tube set on inner pipe is transported to shale gas and tight gas difference institute
Rammell and compacted zone, in rammell and compacted zone because heat transfer causes rammell and compacted zone temperature to raise, when
When rammell and compacted zone raise 20-30 degrees Celsius using well as mean temperature in the range of 50 meters of center of circle radius, stop conveying overheat
Vapor, well head open and close valve is closed, closing well is after 1-10 days, opening well head open and close valve, in heated rammell and compacted zone
Gas desorption speed improves, and expanded by heating, passes sequentially through the sieve aperture on outer tube and inner tube, into inner tube, flows to ground through inner tube
Face.
Microwave is heated without medium heat-transfer, is brought rapidly up in heating process, penetrability is strong, and process is easily controllable.This sets
Standby that reservoir can be heated, the desorption quantity of coal bed gas and shale gas gradually increases with the rise of temperature, is desorbed after heating
Amount increase, coal bed gas and the increase of shale gas yield, it is aqueous in coal bed gas in heating process to become vapor in high temperature, it is right
Coal bed gas and shale gas reach the effect of gas drive, and can not only improve exploitation rate can also improve recovery ratio；Can be by micro-
Wave heating carries out microcrack extension, and coal seam, compacted zone, rammell can produce microcrack, microcrack in microwave heating process
The permeability of reservoir can be increased so as to increase the rate of withdrawal of three gas.
Brief description of the drawings
Fig. 1 represents structural representation of the present utility model.
In figure：1- steam generators, 2- outer tubes, 3- inner tubes, 4- coal seams, 5- rammells, 6- compacted zones, 7- power supplys, 8- are led
Line, 9- microwave generators, 10- well head open and close valves, 11- steam valves.
Embodiment
Specific embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
A kind of gas yield-increasing apparatus of coal measures three, as shown in figure 1, including through coal seam 4, rammell 5, compacted zone 6 outer tube 2,
Inner tube 3 is provided with outer tube 2（Inner tube is as gas-producing well）, in inner tube 3 and outer tube 2 where coal bed gas, shale gas, tight gas
Rock stratum position be provided with overheated steam and desorption after gas output sieve aperture.It is provided with inner tube 3 positioned at the position of coal seam 4 micro-
Wave producer 9, the microwave generator 9 are connected by wire 8 with the power supply 7 positioned at ground；The top of inner tube 3 passes through pipeline and steaming
Steam valve 11 is connected with the steam generator 1 positioned at ground, the upper end of inner tube 3 installation well head open and close valve 10.
During work, first, steam off valve 11 and well head open and close valve 10, steam generator 1 do not work.Power supply 7 is by leading
Line 8 delivers power to microwave generator 9, and microwave generator 9 produces microwave, and caused microwave is launched to coal seam 4, and microwave passes through
Sieve aperture transmitting microwave on outer tube 2, makes the rise of coal seam 4 temperature, when coal seam is using well as mean temperature in the range of 50 meters of center of circle radius
When raising 20-30 degrees Celsius, the power supply 7 of microwave generator 9 is closed, coal bed gas well is closed after 3-4 days, opens well head open and close valve
10, heated coal seam can produce microcrack, and the coal bed gas desorption rate in coal seam improves, and expanded by heating, successively by outer
Sieve aperture on pipe 2 and inner tube 3, is flowed into inner tube 3, and the water in coal seam flows to inner tube 3, output ground also by sieve aperture.Aerogenesis one
After the section time, no longer exploited after yield is relatively low, the output Water Sproading in coal seam is now entered into steam generator 1, closed-in well
Mouth open and close valve 10, opens evaporator valve 11, overheated steam caused by steam generator 1 is by inner tube 3, in inner tube lateral septal thermosphere
Protection under, the thermal loss of overheated steam is less, and overheated steam passes sequentially through the sieve aperture and outer tube being arranged in inner tube 3
Sieve aperture on 2 is transported to shale gas and the tight gas rammell at place and compacted zone respectively, in rammell and compacted zone due to heat
Amount, which is transmitted, causes rammell and the rise of compacted zone temperature, when in the range of rammell and compacted zone are 50 meters of center of circle radius using well averagely
When temperature raises 20-30 degrees Celsius, stop conveying overheated steam, closing well opens well head open and close valve 10 after 1-10 days, is heated
Rammell and compacted zone in gas desorption speed improve, and expanded by heating passes sequentially through the sieve aperture on outer tube 2 and inner tube 3,
Into inner tube 3, ground is flowed to through inner tube 3.
The gas yield-increasing apparatus of coal measures three described in the utility model heats reservoir by microwave in coal seam and produces microcrack and increasing
Add desorption quantity, produce vapor and carry out gas drive to improve yield, overheated steam heating increase is utilized in rammell and compacted zone
Desorption quantity improves the equipment of yield, and its floor space is small, low cost, the water of output injected into stratum, effect to reservoir pollution small
Fruit is notable.
It should be noted last that above example is only unrestricted to illustrate the technical solution of the utility model, to the greatest extent
Pipe is described in detail with reference to the utility model embodiment, it will be understood by those within the art that, it is new to this practicality
The technical scheme of type is modified or equivalent substitution, without departure from the spirit and scope of the technical solution of the utility model, its
It all should cover in claims.
Claims (2)
- A kind of 1. gas yield-increasing apparatus of coal measures three, it is characterised in that：Including through coal seam（4）, rammell（5）, compacted zone（6）It is outer Pipe（2）, the outer tube（2）Inside it is provided with inner tube（3）, said inner tube（3）And outer tube（2）On be equipped with sieve aperture；Said inner tube（3） It is upper to be located at coal seam（4）Position is provided with microwave generator（9）, the microwave generator（9）Pass through wire（8）With positioned at ground Power supply（7）Connection；Said inner tube（3）Top passes through pipeline and steam valve（11）With the steam generator positioned at ground（1）Connection, Said inner tube（3）Upper end is installed by well head open and close valve（10）.
- 2. the gas yield-increasing apparatus of coal measures three according to claim 1, it is characterised in that：Said inner tube（3 ）It is externally provided with heat-insulated Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748219.9U CN206860160U (en) | 2017-06-26 | 2017-06-26 | The gas yield-increasing apparatus of coal measures three |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748219.9U CN206860160U (en) | 2017-06-26 | 2017-06-26 | The gas yield-increasing apparatus of coal measures three |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860160U true CN206860160U (en) | 2018-01-09 |
Family
ID=60826659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720748219.9U Expired - Fee Related CN206860160U (en) | 2017-06-26 | 2017-06-26 | The gas yield-increasing apparatus of coal measures three |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860160U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108684099A (en) * | 2018-05-11 | 2018-10-19 | 东北大学 | Fracturing HIGH-POWERED MICROWAVES coaxial heater in a kind of engineering rock mass hole |
| CN109519157A (en) * | 2018-09-29 | 2019-03-26 | 山西晋城无烟煤矿业集团有限责任公司 | Heat yield-increasing technique in coal bed gas well underground |
| CN114165208A (en) * | 2021-12-17 | 2022-03-11 | 贵州大学 | Microwave degradation and pressure disturbance coal bed gas shale gas yield increasing equipment and using method |
-
2017
- 2017-06-26 CN CN201720748219.9U patent/CN206860160U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108684099A (en) * | 2018-05-11 | 2018-10-19 | 东北大学 | Fracturing HIGH-POWERED MICROWAVES coaxial heater in a kind of engineering rock mass hole |
| CN108684099B (en) * | 2018-05-11 | 2020-09-29 | 东北大学 | High-power microwave coaxial heater for in-hole fracturing of engineering rock mass |
| CN109519157A (en) * | 2018-09-29 | 2019-03-26 | 山西晋城无烟煤矿业集团有限责任公司 | Heat yield-increasing technique in coal bed gas well underground |
| CN114165208A (en) * | 2021-12-17 | 2022-03-11 | 贵州大学 | Microwave degradation and pressure disturbance coal bed gas shale gas yield increasing equipment and using method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20180626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |