CN206874263U - A kind of biogenesis coal bed gas scene injection circulatory system - Google Patents
A kind of biogenesis coal bed gas scene injection circulatory system Download PDFInfo
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- CN206874263U CN206874263U CN201720711880.2U CN201720711880U CN206874263U CN 206874263 U CN206874263 U CN 206874263U CN 201720711880 U CN201720711880 U CN 201720711880U CN 206874263 U CN206874263 U CN 206874263U
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Abstract
The utility model belongs to coal bed gas extraction technical field, in order to overcome the shortcomings of existing biogenesis coal bed gas individual well injecting scheme, the utility model provides a kind of biogenesis coal bed gas scene injection circulatory system, including injection well, some mining wells, return tank, culture tank and blending tank, return tank, culture tank and blending tank are located at ground, the well head of mining well is connected with the inlet of return tank respectively, the leakage fluid dram of return tank and the inlet of culture tank connect, the inlet of blending tank connects with the link circuit of return tank leakage fluid dram and culture tank inlet, pump and control valve are provided between return tank leakage fluid dram and blending tank inlet, support and pump and control valve are provided between base tank inlet and blending tank inlet；The leakage fluid dram of blending tank is connected with injection well, and pump and control valve are provided with link circuit.It can in real time be detected using the system, continuous-stable injection nutrient solution, be preferably enriched with underground aerogenesis flora, promote the biological into gas of coal.
Description
Technical field
The utility model belongs to coal bed gas extraction technical field, is related to a kind of biogenesis coal bed gas scene injection cyclic system
System.
Background technology
Because containing a large amount of humic acids easily utilized by microorganism in lignite, therefore easily it is degraded by microorganisms.In coal seam
Gas exploit when, can by microorganism increase production coal bed gas technology be by adding microorganism into gasser, come calorific value of degrading it is low,
The not high lignite of economic use value, methane is converted by lignite.
Current existing microorganism field injection technology is all that nutrient solution is injected to the pattern of individual well and mining, this mode
Flow to and fail to understand after nutrient solution injection, loss is more, smaller on the influence of methane phase correlation flora, reduces into the possibility of gas.
The content of the invention
The utility model provides one kind to overcome the shortcomings of existing biogenesis coal bed gas individual well injecting scheme
The biogenesis coal bed gas scene injection circulatory system.
The utility model adopts the following technical scheme that：
A kind of biogenesis coal bed gas scene injection circulatory system, including injection well, some mining wells, return tank, culture
Base tank and blending tank, return tank, culture tank and blending tank are located at ground, the well head of the mining well inlet with return tank respectively
Connection, the leakage fluid dram of return tank and the inlet of culture tank connect, inlet and return tank leakage fluid dram and the culture of blending tank
The link circuit connection of base tank inlet, is provided with pump and control valve, supports base between return tank leakage fluid dram and blending tank inlet
Pump and control valve are provided between tank inlet and blending tank inlet；The leakage fluid dram of blending tank is connected with injection well, is connected back to
Pump and control valve are provided with road.
For the mining well at least provided with three, mining well, which once arranges, is laid in composition sector structure below injection well,
The structure is set according to direction of groundwater flow, is advantageous to nutrient solution and is flowed to mining well, reduces the loss of nutrient solution.
The return tank, culture tank and mixing pot bottom are correspondingly provided with detection valve respectively.It can be examined using valve is detected
Nutrient solution concentration in test tube body simultaneously fills into Nutrient medium in time.
Moisture trap is connected with the return tank, effective aqueous vapor point is carried out to the liquid that lower section mining well extraction is returned
From, and then realize water（Nutrient solution）Collection.
The self-circulating pump of control stir culture liquid is connected with the culture tank, is realized to the nutrient solution in culture tank
Stirring, ensure the uniformity of circulating liquid concentration.
The circulatory system described in the utility model, refer specifically to inject nutrient solution to underground by coal bed gas well, be enriched with related production
Methanogen, coal is set to be degraded into a kind of live injection technology of gas.Circulation, which refers to, is continuously injected into culture medium, that is, injects, extraction, mends
Material, is reinjected.
The utility model is according to direction of groundwater flow, up to selection a bite coal bed gas injection well, lower set direction three
Mouth coal bed gas extraction well, composition are fan-shaped.Three, ground tank body, is culture tank, return tank, blending tank respectively.The good culture of configuration
Base, nutrient solution, lower direction well mining are slowly injected into by underground water speed upward direction well.After lower direction gas well gas water separation, water（Training
Nutrient solution）Collection, transport direction well, circulation injection back.Injection period, constantly detection lower direction well ion concentration, if lower direction well
Extraction nutrient solution concentration dilution, phegma are mixed with culture medium, and feed supplement again is injected, until above-below direction well nutrient solution concentration is equal
It is even.
It can in real time be detected using the system, continuous-stable injection nutrient solution, be preferably enriched with underground aerogenesis flora, promote coal
Biology into gas.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：1- injection wells, 2 ~ 4- mining wells, 5- return tanks, 6- culture tanks, 7- blending tanks, 8- moisture traps, 9 ~
12- pumps, 13 ~ 22- valves, 23- gas outlets.
Embodiment
With reference to accompanying drawing, specific embodiment of the present utility model is described further：
The injection circulatory system in biogenesis coal bed gas scene as depicted, including injection well 1, some mining wells, backflow
Tank 5, culture tank 6, blending tank 7 and moisture trap 8, return tank 5, culture tank 6 and blending tank 7 are located at ground, mining well
Inlet of the well head respectively with return tank 5 be connected, the leakage fluid dram of return tank 5 is connected with the inlet of culture tank 6, blending tank
7 inlet connects with the link circuit of the leakage fluid dram of return tank 5 and the inlet of culture tank 6, the leakage fluid dram of return tank 5 and blending tank
Pump 9 and control valve 13 are provided between 7 inlets, supports and pump 10 and control is provided between the inlet of base tank 6 and the inlet of blending tank 7
Valve 14；The leakage fluid dram of blending tank 7 is connected with injection well 1, and pump 12 and control valve 16 are provided with link circuit；The air water point
It is connected from device 8 with return tank 5.
The injection circulation work principle of the system is：Valve 17-18,19-20,21-22 are first opened successively leads to nitrogen, it is ensured that
Anaerobic in return tank 5, culture tank 6 and blending tank 7.After three mouthfuls of mining well normal operations, the liquid that extraction is returned injects return tank
5, add solid medium to culture tank 6.Early stage is injected, pump 9 is opened and liquid in return tank 5 is squeezed into culture medium by valve 15
Tank 6, pump 9 and valve 15 are closed, the self-loopa of turn on pump 11, the nutrient solution being sufficiently stirred in culture tank 6, opens pump 10 and valve
14, nutrient solution enters blending tank 7, opens valve 16 and nutrient solution is squeezed into injection well 1 by pump 12.After circulation starts, three tank bodies
Lower section valve opening door（17、19、21）Detection mouth is equipped with, once the reduction of nutrient solution concentration is detected, opening pump 9,10, valve 13,
14 phegmas fill into culture medium, are pumped into blending tank 7, similarly open valve 16 and pump 12 is pumped into injection well 1.The top of blending tank 5 is set
There is moisture trap 8, liquid backflow injection, realize that gas collection detects.
Claims (5)
- A kind of 1. biogenesis coal bed gas scene injection circulatory system, it is characterised in that：Including injection well（1）, some mining wells, Return tank（5）, culture tank（6）And blending tank（7）, return tank（5）, culture tank（6）And blending tank（7）Located at ground, row Adopt the well head of well respectively with return tank（5）Inlet connection, return tank（5）Leakage fluid dram and culture tank（6）Inlet Connection, blending tank（7）Inlet and return tank（5）Leakage fluid dram and culture tank（6）The link circuit connection of inlet, backflow Tank（5）Leakage fluid dram and blending tank（7）Pump and control valve are provided between inlet, supports base tank（6）Inlet and blending tank（7）Note Pump and control valve are provided between entrance；Blending tank（7）Leakage fluid dram and injection well（1）Connection, be provided with link circuit pump and Control valve.
- 2. the injection circulatory system in biogenesis coal bed gas scene according to claim 1, it is characterised in that：The mining well At least provided with three, mining well, which once arranges, is laid in injection well（1）Lower section forms sector structure.
- 3. the injection circulatory system in biogenesis coal bed gas scene according to claim 2, it is characterised in that：The return tank （5）, culture tank（6）And blending tank（7）Bottom is correspondingly provided with detection valve respectively（17、19、21）.
- 4. the injection circulatory system in biogenesis coal bed gas scene according to claim 3, it is characterised in that：The return tank （5）On be connected with moisture trap（8）.
- 5. the injection circulatory system in biogenesis coal bed gas scene according to claim 4, it is characterised in that：The culture medium Tank（6）On be connected with control stir culture liquid self-circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720711880.2U CN206874263U (en) | 2017-06-19 | 2017-06-19 | A kind of biogenesis coal bed gas scene injection circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720711880.2U CN206874263U (en) | 2017-06-19 | 2017-06-19 | A kind of biogenesis coal bed gas scene injection circulatory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206874263U true CN206874263U (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720711880.2U Active CN206874263U (en) | 2017-06-19 | 2017-06-19 | A kind of biogenesis coal bed gas scene injection circulatory system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607319A (en) * | 2022-03-28 | 2022-06-10 | 贵州省油气勘查开发工程研究院 | Method for improving coal bed gas yield of multi-branch butt well through intermittent circulating liquid injection |
-
2017
- 2017-06-19 CN CN201720711880.2U patent/CN206874263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114607319A (en) * | 2022-03-28 | 2022-06-10 | 贵州省油气勘查开发工程研究院 | Method for improving coal bed gas yield of multi-branch butt well through intermittent circulating liquid injection |
| CN114607319B (en) * | 2022-03-28 | 2024-04-05 | 贵州省油气勘查开发工程研究院 | Method for improving coalbed methane yield of multi-branch butt joint well by intermittent circulating liquid injection |
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