CN206280060U - Coal-bed-gas production-increase equipment - Google Patents
Coal-bed-gas production-increase equipment Download PDFInfo
- Publication number
- CN206280060U CN206280060U CN201621404278.6U CN201621404278U CN206280060U CN 206280060 U CN206280060 U CN 206280060U CN 201621404278 U CN201621404278 U CN 201621404278U CN 206280060 U CN206280060 U CN 206280060U
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- Prior art keywords
- microwave
- coal
- metallic casing
- pit shaft
- metal sleeve
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- Expired - Fee Related
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- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The utility model discloses a kind of coal-bed-gas production-increase equipment, including the underground microwave generator for being placed in bottom（2）, the microwave generator（2）Top connects microwave emitter（4）, the microwave emitter（4）It is placed in non-metallic casing（3）It is interior, the non-metallic casing（3）Through coal seam（1）, the non-metallic casing（3）On offer the through hole that heat sheds, the non-metallic casing（3）Upper connection metal sleeve（5）, the metal sleeve（5）Through rock stratum（8）To ground, the metal sleeve（5）Interior setting pit shaft（6）, the pit shaft（6）Positioned at microwave emitter（4）Top；The ground sets electric power system（7）, the electric power system（7）By pit shaft（6）To underground microwave generator（2）Power supply.The equipment heats coal seam by heating using microwave, produces microcrack, and heating using microwave invests small, instant effect as new oil gas field firing equipment, and occupation of land is small, pollutes small.
Description
Technical field
The utility model is related to coal-bed gas exploitation field, specially a kind of coal-bed-gas production-increase equipment, for coalbed methane reservoir
Heating and Reservoir Fracture expansion equipment.
Background technology
Coal bed gas is the unconventional gas resource of spontaneous self-stored, and the main preservation of coal bed gas is in the hugger and base of coal rock layer
In matter hole, coexisted with stratum water with adsorbed state, it is necessary to first be desorbed coal bed gas in the exploitation of coal bed gas, make it
As free gas, then finally enter pit shaft or be directly entered pit shaft into crack along hugger and exploit to ground.
In order to improve the rate of withdrawal and recovery ratio of coal bed gas, well stimulation, conventional well stimulation can be typically used to be
Pressure break is carried out, after carrying out pressure break, the permeability of reservoir can be increased, reduce pit shaft peripheral resistance, can entered after coal bed gas desorption
Enter crack, pit shaft is then entered by crack, improve rate of withdrawal and recovery ratio.
The content of the invention
The purpose of this utility model is to provide a kind of new coal-bed-gas production-increase equipment, is heated for coalbed methane reservoir and micro-
Crack extends, and can both heat reservoir to increase desorption quantity, produces vapor to carry out gas drive to improve yield, can also be by adding
Heat produces microcrack to improve permeability to improve yield, and its floor space is small, low cost, effect is significant, can apply to storage
Layer coal-bed gas exploitation.
The utility model adopts the following technical scheme that realization：
A kind of coal-bed-gas production-increase equipment, including it is placed in coal seam（Target zone）The underground microwave generator of bottom, the microwave
Generator top connection microwave emitter, the microwave emitter is placed in non-metallic casing, and the non-metallic casing runs through coal
Layer, offers the through hole that heat sheds on the non-metallic casing, metal sleeve, the metal are connected on the non-metallic casing
Sleeve pipe, to ground, sets pit shaft through rock stratum in the metal sleeve, the pit shaft is located at microwave emitter top；The ground
Electric power system is set, and the electric power system is powered by pit shaft to underground microwave generator.
Because heating using microwave is without medium heat-transfer, it is brought rapidly up in heating process, penetrability is strong, and process is easily controllable.
The equipment can be heated to reservoir, and the desorption quantity of coal bed gas gradually increases with the rising of temperature, and desorption quantity increases after heating
Plus, methane output increases, aqueous in coal bed gas in heating process to become vapor in high temperature, and gas is reached to coal bed gas
The effect of drive, can not only improve exploitation rate can also improve recovery ratio, it is also possible to carry out microcrack by heating using microwave
Extension, coal seam can produce the microcrack, microcrack can to increase the permeability of reservoir so as to increase coal seam in microwave heating process
The rate of withdrawal of gas, coal bed gas is produced by producing well.
The utility model is reasonable in design, and the equipment can not only heat reservoir and can also produce microcrack, in heating coal seam
On the basis of, increase the desorption rate of coal bed gas, make that coal seam is aqueous to be changed into vapor, effect produces microcrack similar to gas drive
Increase permeability, the yield of coal bed gas is effectively increased, with good market application value.
Brief description of the drawings
Fig. 1 represents structural representation of the present utility model.
In figure：1- coal seams, 2- undergrounds microwave generator, 3- non-metallic casings, 4- microwave emitters, 5- metal sleeves, 6-
Pit shaft, 7- electric power systems, 8- rock stratum.
Specific embodiment
Specific embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
A kind of coal-bed-gas production-increase equipment, mainly includes underground microwave generator, non-metallic casing, microwave emitter, metal
Sleeve pipe, pit shaft and electric power system.
Specifically arrange as shown in figure 1, the underground microwave generator 2 including being placed in the bottom of coal seam 1, the microwave generator 2
Top connects microwave emitter 4, and the microwave emitter 4 is placed in non-metallic casing 3, and the non-metallic casing 3 runs through coal seam
1, the through hole that heat sheds is offered on the non-metallic casing 3, metal sleeve 5, the gold are connected on the non-metallic casing 3
Category sleeve pipe 5, to ground, sets pit shaft 6 through rock stratum 8 in the metal sleeve 5, the pit shaft 6 is located at the top of microwave emitter 4；
The ground sets electric power system 7, and the electric power system 7 is powered by pit shaft 6 to underground microwave generator 2.
Electric power system 7 is main to producing microwave to provide electric energy, and electric power system is delivered power in the middle of reservoir by wire
Underground microwave generator 2, the microwave that then underground microwave generator is produced is by microwave emitter 4, and non-metallic casing 3,
It is transmitted into stratum and reservoir is heated, reaches heating reservoir and produce the purpose of microcrack.Reservoir is heated, coal seam
The desorption quantity of gas gradually increases with the rising of temperature, and desorption quantity increases after heating, and methane output increases, in heating process
The aqueous effect that can become vapor in high temperature, gas drive is reached to coal bed gas, can not only improve exploitation rate in coal bed gas
Recovery ratio can also be improved；Microcrack extension can be carried out by heating using microwave, coal seam can produce in microwave heating process
Microcrack, microcrack can increase the permeability of reservoir so as to increase the rate of withdrawal of coal bed gas.
The utility model heats coal seam by heating using microwave, produces microcrack, and heating using microwave is used as new oil gas field
Firing equipment, invests small, instant effect, and occupation of land is small, pollutes small.
Above example is merely to illustrate the technical solution of the utility model and unrestricted, although with reference to preferred embodiments to this
Utility model has been described in detail, it will be appreciated by those skilled in the art that the technical scheme that can use for reference utility model is carried out
Modification or equivalent, without deviating from it is of the present utility model in a word and scope, be regarded as being included in the right of utility model
Within claimed range.
Claims (1)
1. a kind of coal-bed-gas production-increase equipment, it is characterised in that：Including being placed in coal seam（1）The underground microwave generator of bottom（2）, institute
State microwave generator（2）Top connects microwave emitter（4）, the microwave emitter（4）It is placed in non-metallic casing（3）It is interior, institute
State non-metallic casing（3）Through coal seam（1）, the non-metallic casing（3）On offer the through hole that heat sheds, it is described nonmetallic
Sleeve pipe（3）Upper connection metal sleeve（5）, the metal sleeve（5）Through rock stratum（8）To ground, the metal sleeve（5）Inside set
Put pit shaft（6）, the pit shaft（6）Positioned at microwave emitter（4）Top；The ground sets electric power system（7）, the power supply system
System（7）By pit shaft（6）To underground microwave generator（2）Power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621404278.6U CN206280060U (en) | 2016-12-21 | 2016-12-21 | Coal-bed-gas production-increase equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621404278.6U CN206280060U (en) | 2016-12-21 | 2016-12-21 | Coal-bed-gas production-increase equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280060U true CN206280060U (en) | 2017-06-27 |
Family
ID=59073091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621404278.6U Expired - Fee Related CN206280060U (en) | 2016-12-21 | 2016-12-21 | Coal-bed-gas production-increase equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420043A (en) * | 2017-08-10 | 2017-12-01 | 贵州大学 | A kind of drilling Self tightening device matching used with coal seam heating cable and construction method |
| CN108843295A (en) * | 2018-06-01 | 2018-11-20 | 中国海洋石油集团有限公司 | A kind of reservoir reconstruction instrument and reservoir reconstruction method |
-
2016
- 2016-12-21 CN CN201621404278.6U patent/CN206280060U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420043A (en) * | 2017-08-10 | 2017-12-01 | 贵州大学 | A kind of drilling Self tightening device matching used with coal seam heating cable and construction method |
| CN107420043B (en) * | 2017-08-10 | 2023-09-12 | 贵州大学 | Drilling self-tightening device matched with coal seam heating cable and construction method |
| CN108843295A (en) * | 2018-06-01 | 2018-11-20 | 中国海洋石油集团有限公司 | A kind of reservoir reconstruction instrument and reservoir reconstruction method |
| CN108843295B (en) * | 2018-06-01 | 2021-02-05 | 中国海洋石油集团有限公司 | Reservoir stratum transformation instrument and reservoir stratum transformation method |
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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: 20170627 Termination date: 20181221 |