CN206439041U - A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing - Google Patents
A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing Download PDFInfo
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- CN206439041U CN206439041U CN201720052223.1U CN201720052223U CN206439041U CN 206439041 U CN206439041 U CN 206439041U CN 201720052223 U CN201720052223 U CN 201720052223U CN 206439041 U CN206439041 U CN 206439041U
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- carbon dioxide
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- pressure sensor
- coal seam
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Abstract
The utility model is related to a kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing, including high pressure nitrogen holding vessel, liquid carbon dioxide holding vessel, sample room, closure, carbon dioxide blasting cartridge, booster pump, the sample room is fixedly connected with closure, high pressure nitrogen holding vessel is connected with sample room by the first connecting tube, liquid carbon dioxide holding vessel is connected with carbon dioxide blasting cartridge by the second connecting tube, the first valve and the second valve are respectively equipped with wherein the first connecting tube and the second connecting tube, booster pump is connected with sample room by the 3rd connecting tube, first pressure sensor is respectively equipped with sample room, second pressure sensor, flow sensor.The device can simulate it is a variety of under the conditions of the anti-reflection situation of coal seam reservoirs carbon dioxide fracturing, and record the data obtained by experiment, antireflective effect is evaluated, theoretical foundation and reference are provided for the application of the live anti-reflection technology of carbon dioxide fracturing, the risk and blindness of engineering is reduced.
Description
Technical field
The utility model is related to coal mine gas drainage technical field, and more particularly to a kind of simulation carbon dioxide fracturing is anti-reflection
The experimental provision in coal seam.
Background technology
It is low ventilative, hard-pumped coal seam to have considerable coal seam in China's gaseous mine, causes gas drainage efficiency, gas drainage under suction
Amount and extraction concentration are very low.Therefore, how to change the gas permeability in coal seam and improve coal bed gas drainage rate and always be that gas is comprehensive
Close the problem administered.It is a kind of coal mine underground coal bed anti-reflection new technology that carbon dioxide fracturing is anti-reflection, by using liquid titanium dioxide
Carbon is ruptured in coal seam, increase coal seam by thermal evaporation expansion, quick release high-pressure carbon dioxide gas, high-pressure carbon dioxide gas
Crack, and then increase the gas permeability in coal seam.But it is due to the conditions such as live coal seam reservoirs pressure, Coal Pore Structure and cranny development degree
Otherness, the technology in some colliery antireflective effects significantly, it is but unsatisfactory in some colliery antireflective effects, and field test
Cost is high, and risk is big, and the field application and popularization for making the technology are limited by very large.
The content of the invention
Technical problem to be solved in the utility model is to provide a kind of experiment for simulating the anti-reflection coal seam of carbon dioxide fracturing
Device, can simulate it is a variety of under the conditions of the anti-reflection situation of coal seam reservoirs carbon dioxide fracturing, and record experiment obtained by data, evaluate
Antireflective effect, provides theoretical foundation and reference for the application of the live anti-reflection technology of carbon dioxide fracturing, reduces the risk of engineering
And blindness.
In order to solve the above technical problems, the utility model provides a kind of experiment for simulating the anti-reflection coal seam of carbon dioxide fracturing
Device, including high pressure nitrogen holding vessel, liquid carbon dioxide holding vessel, sample room, closure, carbon dioxide blasting cartridge, supercharging
Pump, the sample room is fixedly connected with closure, and high pressure nitrogen holding vessel is connected with sample room by the first connecting tube, liquid
Carbon dioxide storage tank is connected with carbon dioxide blasting cartridge by the second connecting tube, wherein the first connecting tube and the second connecting tube
On be respectively equipped with the first valve and the second valve, the booster pump is connected with sample room by the 3rd connecting tube, the sample
First pressure sensor, second pressure sensor, flow sensor, and first pressure sensor and the second pressure are respectively equipped with room
Force snesor is located at the upper and lower ends of sample room, the first pressure sensor, second pressure sensor, flow sensor respectively
Respectively by data connecting line with calculating mechatronics.
The carbon dioxide blasting cartridge include pneumatic head, liquid storage pipe, let out can head, the two ends of liquid storage pipe respectively with pneumatic head and
Let out can head thread connection, the pneumatic head is provided with heating rod, and heating rod extend into liquid storage pipe, the liquid storage pipe and lets out energy
Catch and cutting ring are provided between head, and catch is located at close to the side of liquid storage pipe, the energy head of letting out is provided with exhaust pressure relief hole.
The lower surface of the closure is provided with sealing ring.
The utility model has the advantages that compared with prior art：Experimental provision of the present utility model can be simulated
The anti-reflection situation of coal seam reservoirs carbon dioxide fracturing under the conditions of a variety of, and the data obtained by experiment are recorded, antireflective effect is evaluated, is existing
The application of the field anti-reflection technology of carbon dioxide fracturing provides theoretical foundation and reference, reduces the risk and blindness of engineering.Simultaneously
Using the data in computer recording experimentation, the accuracy of experimental data is improved, reduces experimental error, and it is available
Computer is directly handled experimental data, is improved efficiency, is reduced workload.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model experimental provision.
Embodiment
To make the purpose of this utility model, technical scheme and beneficial effect clearer, below in conjunction with the accompanying drawings to this practicality
New embodiment is described in further detail.
As shown in figure 1, the utility model provides a kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing, including
High pressure nitrogen holding vessel 1, liquid carbon dioxide holding vessel 2, sample room 3, closure 4, carbon dioxide blasting cartridge 5, booster pump 6,
The sample room 3 is fixedly connected with closure 4, and the lower surface of closure 4 is provided with sealing ring 17, ensures sample room 3 with this
Air-tightness, high pressure nitrogen holding vessel 1 is connected with sample room 3 by the first connecting tube 7, liquid carbon dioxide holding vessel 2 and two
Carbonoxide blasting cartridge 5 is connected by the second connecting tube 8, wherein being respectively equipped with first in the first connecting tube 7 and the second connecting tube 8
The valve 10 of valve 9 and second.
The carbon dioxide blasting cartridge 5 includes pneumatic head 5a, liquid storage pipe 5b, lets out energy head 5c, liquid storage pipe 5b two ends difference
With pneumatic head 5a and let out can head 5c be threadedly coupled, the pneumatic head 5a is provided with heating rod 5d, and heating rod 5d extend into liquid storage
In pipe 5b, the liquid storage pipe 5b and let out and can be provided with catch 5e and cutting ring 5f between head 5c, and catch 5e is located at close to liquid storage pipe
5b side, the energy head 5c that lets out is provided with exhaust pressure relief hole 5g.
The booster pump 6 is connected with sample room 3 by the 3rd connecting tube 11, and first is respectively equipped with the sample room 3
Pressure sensor 12, second pressure sensor 13, flow sensor 14, and first pressure sensor 12 and second pressure sensor
13 are located at the upper and lower ends of sample room 3, the first pressure sensor 12, second pressure sensor 13, flow sensor respectively
14 are electrically connected by data connecting line 15 with computer 16 respectively.
During experiment, cut out in the coal sample fetched first with cutting machine from ore deposit a block size for 140mm × 140mm ×
300mm laboratory sample 18, and the drilling on laboratory sample 18, its size drilled match with carbon dioxide blasting cartridge 5,
Laboratory sample 18 is put into sample room 3, and encapsulation process is carried out with 4 sealing rings 17 of closure, the first valve 9 is opened to sample
Nitrogen is filled with product room 3, open booster pump 6 increases pressure into sample room 3, until the confined pressure of laboratory sample 18 reaches design pressure
Force value, closes the first valve 9, and pass through first pressure sensor 12, second pressure sensor 13, flow sensor 14 and meter
Calculation machine 16 records the permeability data of laboratory sample 18 before test.
Open the second valve 10 and fill liquid carbon dioxide into liquid storage pipe 5b, treat liquid carbon dioxide fill finish with
Afterwards, electrified regulation is carried out to heating rod 5d using mining blaster, gasification becomes carbon dioxide to liquid carbon dioxide rapidly,
Gas volume is expanded to rapidly more than 600 times, and carbon dioxide is gone out catch 5e and from exhaust pressure relief from cutting ring 5f
Discharged rapidly in the 5g of hole, high-pressure carbon dioxide gas fracturing experiments sample 18, expand the crack in laboratory sample 18, pass through first
Pressure sensor 12, second pressure sensor 13, flow sensor 14 and computer 16 record laboratory sample 18 after test
Permeability data.Experimental data before contrast test and after test, evaluates antireflective effect, is that live carbon dioxide fracturing is anti-reflection
The application of technology provides theoretical foundation and reference, reduces the risk and blindness of engineering.
The word such as " first ", " second " has been used in this patent come if limiting parts, those skilled in the art should
Know：" first ", the use of " second " are intended merely to facilitate description the utility model and simplified and describe, and above-mentioned word does not have
Special implication.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model can also on the premise of the utility model spirit and scope are not departed from
There are various changes and modifications, these changes and improvements are both fallen within the range of claimed utility model.The utility model requirement
Protection domain is defined by appended claims and equivalent.
Claims (3)
1. a kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing, it is characterised in that：Including high pressure nitrogen holding vessel, liquid
State carbon dioxide storage tank, sample room, closure, carbon dioxide blasting cartridge, booster pump, the sample room is fixed with closure to be connected
Connect, high pressure nitrogen holding vessel is connected with sample room by the first connecting tube, liquid carbon dioxide holding vessel and carbon dioxide are quick-fried
Broken pipe is connected by the second connecting tube, wherein being respectively equipped with the first valve and the second valve in the first connecting tube and the second connecting tube
Door, the booster pump is connected with sample room by the 3rd connecting tube, be respectively equipped with the sample room first pressure sensor,
Second pressure sensor, flow sensor, and first pressure sensor and second pressure sensor are respectively positioned at the upper of sample room
Lower two ends, the first pressure sensor, second pressure sensor, flow sensor pass through data connecting line and computer respectively
Electrical connection.
2. a kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing according to claim 1, it is characterised in that：Institute
State carbon dioxide blasting cartridge including pneumatic head, liquid storage pipe, let out can head, the two ends of liquid storage pipe are respectively with pneumatic head and letting out energy head thread
Connection, the pneumatic head is provided with heating rod, and heating rod extend into liquid storage pipe, the liquid storage pipe and lets out and can be provided between head
Catch and cutting ring, and catch is located at the side of close liquid storage pipe, the energy head of letting out is provided with exhaust pressure relief hole.
3. a kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing according to claim 2, it is characterised in that：Institute
The lower surface for stating closure is provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052223.1U CN206439041U (en) | 2017-01-17 | 2017-01-17 | A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720052223.1U CN206439041U (en) | 2017-01-17 | 2017-01-17 | A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206439041U true CN206439041U (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720052223.1U Expired - Fee Related CN206439041U (en) | 2017-01-17 | 2017-01-17 | A kind of experimental provision for simulating the anti-reflection coal seam of carbon dioxide fracturing |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461183A (en) * | 2017-09-14 | 2017-12-12 | 安徽理工大学 | A kind of mine carbon dioxide fracturing device |
| CN109611057A (en) * | 2018-12-28 | 2019-04-12 | 吕梁学院 | A kind of coal bed gas extraction carbon dioxide fracturing permeability improvement device |
| CN109991148A (en) * | 2019-04-17 | 2019-07-09 | 河南理工大学 | Carbon dioxide blasting impact dynamic monitoring tester and its test method |
| CN110006805A (en) * | 2019-04-17 | 2019-07-12 | 河南理工大学 | Carbon dioxide blasting impact permeates integrated experimental rig and its test method |
| CN110261019A (en) * | 2019-05-24 | 2019-09-20 | 中国地质大学（武汉） | A kind of carbon dioxide phase transformation fracturing pressure test device |
| CN110331968A (en) * | 2018-03-30 | 2019-10-15 | 中国石油化工股份有限公司 | Simulate the device and method of carbon dioxide dry method pressure break |
| CN113310658A (en) * | 2021-05-27 | 2021-08-27 | 北京中煤矿山工程有限公司 | Pressure measuring device and method for carbon dioxide fracturing device |
| CN113310657A (en) * | 2021-05-26 | 2021-08-27 | 北京中煤矿山工程有限公司 | Device and method for measuring pressure relief capacity of carbon dioxide fracturing device in rock mass or coal mass |
-
2017
- 2017-01-17 CN CN201720052223.1U patent/CN206439041U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107461183A (en) * | 2017-09-14 | 2017-12-12 | 安徽理工大学 | A kind of mine carbon dioxide fracturing device |
| CN110331968A (en) * | 2018-03-30 | 2019-10-15 | 中国石油化工股份有限公司 | Simulate the device and method of carbon dioxide dry method pressure break |
| CN109611057A (en) * | 2018-12-28 | 2019-04-12 | 吕梁学院 | A kind of coal bed gas extraction carbon dioxide fracturing permeability improvement device |
| CN109991148A (en) * | 2019-04-17 | 2019-07-09 | 河南理工大学 | Carbon dioxide blasting impact dynamic monitoring tester and its test method |
| CN110006805A (en) * | 2019-04-17 | 2019-07-12 | 河南理工大学 | Carbon dioxide blasting impact permeates integrated experimental rig and its test method |
| CN110006805B (en) * | 2019-04-17 | 2024-03-22 | 河南理工大学 | Carbon dioxide blasting impact penetration integrated test device and test method thereof |
| CN109991148B (en) * | 2019-04-17 | 2024-03-29 | 河南理工大学 | Carbon dioxide blasting impact dynamic monitoring test device and test method thereof |
| CN110261019A (en) * | 2019-05-24 | 2019-09-20 | 中国地质大学（武汉） | A kind of carbon dioxide phase transformation fracturing pressure test device |
| CN110261019B (en) * | 2019-05-24 | 2024-04-02 | 中国地质大学（武汉） | Carbon dioxide phase transition fracturing pressure testing device |
| CN113310657A (en) * | 2021-05-26 | 2021-08-27 | 北京中煤矿山工程有限公司 | Device and method for measuring pressure relief capacity of carbon dioxide fracturing device in rock mass or coal mass |
| CN113310658A (en) * | 2021-05-27 | 2021-08-27 | 北京中煤矿山工程有限公司 | Pressure measuring device and method for carbon dioxide fracturing device |
| CN113310658B (en) * | 2021-05-27 | 2022-08-05 | 北京中煤矿山工程有限公司 | Pressure measuring device and method for carbon dioxide fracturing device |
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| CF01 | Termination of patent right due to non-payment of annual fee |