CN104295271A - Biogas exploiting system and method - Google Patents
Biogas exploiting system and method Download PDFInfo
- Publication number
- CN104295271A CN104295271A CN201410540188.9A CN201410540188A CN104295271A CN 104295271 A CN104295271 A CN 104295271A CN 201410540188 A CN201410540188 A CN 201410540188A CN 104295271 A CN104295271 A CN 104295271A
- Authority
- CN
- China
- Prior art keywords
- biogas
- pipe
- escape pipe
- monitoring
- ascending pipe
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
Abstract
The invention provides a biogas exploiting system and method. The system comprises a water pump, a biogas collection device and a biogas exploiting device. The biogas exploiting device comprises a nozzle, an injection pipe, a gas outlet pipe and a connection portion. The injection pipe and the gas outlet pipe are fixedly connected through a connection portion. One end of the injection pipe is the spraying end. A spraying hole is formed in the nozzle, and the nozzle is fixedly connected at the spraying end. One end of the gas outlet pipe is the gas suction end, the water pump is communicated with the injection pipe and used for injecting water into the injection pipe, and water is sprayed out from the spraying hole through the nozzle. The biogas collection device is communicated with the gas outlet pipe, and the biogas enters the gas outlet pipe through the gas suction end and enters the biogas collection device through the gas outlet end and the gas outlet pipe. The biogas exploiting system and method have the advantages of being reasonable in design, easy to operate, high in production efficiency and capable of effectively avoiding accidents in the biogas exploiting process.
Description
Technical field
The present invention relates to biogas exploitation field, particularly a kind of mining system of biogas and the exploitation method of biogas.
Background technology
Biogas is the important end-products that microbial action makes in the Biochemical processes of organic remineralization.The geological environment being applicable to the formation of macro-organism gas and gathering has delta, deep water turbidity current deposit, clastic and carbonate platform, and on layer position, many places are in shallow stratum such as Quaternary systems.Visible, biogas is contained in the stratum of geologic structure complexity, and Biogas Reservoirs buried depth is generally at 40-120m, and upper strata is that the marine sediments such as chiltern cover, and shallow gas is subject to the control of geological structure and Groundwater Flow.General exploitation means can not realize in biogas exploitation, because well depth is more shallow, the drilling fluid density of equilibrium strata pressure is less, the pressure balance in shaft bottom is unstable, cause the speed that shallow gas is altered to be accelerated, arriving well head only needs the very short time, once there is well kick accident, be easy to cause top shallow gas pay to be suppressed leakage with common well control method closing well, thus rig may be caused to subside or the serious consequence of ground subsidence.
Summary of the invention
The object of this invention is to provide a kind of structure simple, be easy to operation, production efficiency is high, and effectively can avoid the mining system of the biogas occurring accident in biogas recovery process and the exploitation method of biogas.
For achieving the above object, the technical solution adopted in the present invention is:
A mining system for biogas, comprises water pump, biogas gathering-device and biogas quarrying apparatus;
Described biogas quarrying apparatus comprises: nozzle, ascending pipe, escape pipe and connecting portion;
Described ascending pipe is fixedly connected with by described connecting portion with described escape pipe;
One end of described ascending pipe is ejection end;
Described nozzle arranges spray-hole;
Described nozzle is fixedly connected on described ejection end;
One end of described escape pipe is suction end;
Described water pump is communicated with described ascending pipe, for being injected in described ascending pipe by water, and by the described spray-hole ejection on described nozzle;
Described biogas gathering-device is communicated with described escape pipe;
Biogas enters described escape pipe by described suction end, and enters described biogas gathering-device by the outlet side of described escape pipe.
More preferably, flow monitoring device and sandblasting source is also comprised;
Described flow monitoring device is connected with described escape pipe, for monitoring the flow of biogas in described escape pipe;
Described sandblasting source is communicated with described ascending pipe, and sand is injected described ascending pipe by described sandblasting source, and by the described spray-hole ejection on described nozzle.
More preferably, the quantity of described spray-hole is two or more.
More preferably, described ascending pipe and described escape pipe are the PE pipe of stainless steel tube and/or band steel frame.
More preferably, described ascending pipe is arranged on described escape pipe inside;
Described connecting portion is fixedly connected with the inwall of described escape pipe respectively at described ascending pipe outer wall;
The described ejection end of described ascending pipe arranges the first ejiction opening, and described nozzle is fixedly connected on described first ejiction opening;
Described ejection end and described suction end form the first air entry jointly;
Described first air entry arranges filter screen
Biogas enters described escape pipe by described first air entry.
More preferably, described connecting portion is be fixedly connected with the inwall of described escape pipe with described ascending pipe outer wall respectively;
The quantity of described connecting portion is one or more.
More preferably, described connecting portion comprises pipe collar and fixed-wing;
Described pipe collar is fixedly connected on the outer wall of described ascending pipe;
Described fixed-wing is elastic material;
Described fixed-wing is fixedly connected with described pipe collar, and is connected on the inwall of described escape pipe.
More preferably, described escape pipe is arranged on described ascending pipe inside;
Described connecting portion is fixedly connected with the outer wall of described escape pipe with described ascending pipe inwall respectively;
Described ejection end and described suction end form the second ejiction opening jointly, and described nozzle is fixedly connected on described second ejiction opening;
Described suction end arranges the second air entry;
Described second air entry arranges filter screen;
Biogas enters described escape pipe by described second air entry.
More preferably, the first pressure monitoring device is also comprised;
Described first pressure monitoring device is connected with described ascending pipe, for monitoring the pressure of the water in described ascending pipe.
More preferably, also weighing device is comprised;
Described weighing device is connected with described biogas quarrying apparatus, for monitoring the weight change of described biogas quarrying apparatus.
More preferably, the second pressure monitoring device is also comprised;
Described second pressure monitoring device is connected with described escape pipe, for monitoring the air pressure in described escape pipe.
An exploitation method for biogas, for exploiting the biogas in biogas mineral reserve district, described biogas mineral reserve district comprises the covering layer, biogas housing and the biological gas-bearing formation that are arranged in order from top to bottom, and the use of biogas mining system, comprises the following steps:
S100, starts water pump, and adjustment inflow, tunnels covering layer;
S200, adjustment inflow, holes to biogas housing;
S300, closes down water pump, stops water injecting drilling;
S400, starts biogas gathering-device, collection of biological gas.
More preferably, also comprise after step S400:
S410, whether the biogas flow in Real-Time Monitoring escape pipe reduces, if then enter S320, if not
Then continue monitoring;
S420, starts sandblasting source, to biological gas-bearing formation sandblasting.
More preferably, step S200 comprises the following steps:
S210, whether the fluctuation of the pressure of the water in Real-Time Monitoring ascending pipe reaches preset value, if then enter 400, then continues monitoring if not.
More preferably, step S200 is further comprising the steps of:
S220, the air pressure in Real-Time Monitoring escape pipe, whether lower than the air pressure of biological gas-bearing formation, if then enter S400, then continues monitoring if not.
More preferably, step S200 is further comprising the steps of:
S230, whether the weight of the quarrying apparatus of Real-Time Monitoring biogas has obvious decline, if then close water
Pump also enters S300, then continues monitoring if not.
Ascending pipe is adopted to be fixedly connected with escape pipe, nozzle is fixedly connected on the ejection end of ascending pipe, water pump is communicated with ascending pipe, and the such frame mode of biogas gathering-device and escape pipe UNICOM, tool of the present invention is had the following advantages: reasonable in design, be easy to operation, production efficiency is high, and can effectively avoid occurring accident in biogas recovery process.
Accompanying drawing explanation
Fig. 1 is the mining system one example structure schematic diagram of biogas of the present invention;
Fig. 2 is biogas quarrying apparatus one embodiment schematic diagram in Fig. 1;
Fig. 3 is nozzle schematic diagram in Fig. 2;
Fig. 4 is filter screen schematic diagram in Fig. 2;
Fig. 5 is connecting portion one embodiment schematic diagram in Fig. 2;
Fig. 6 is another embodiment schematic diagram of connecting portion in Fig. 2;
Fig. 7 is another embodiment schematic diagram of biogas quarrying apparatus in Fig. 1;
Fig. 8 is nozzle schematic diagram in Fig. 7;
Fig. 9 is biogas exploitation method schematic flow sheet of the present invention;
Wherein: 1 water pump; 2 biogas gathering-devices; 3 biogas quarrying apparatus; 4 sandblasting sources; 5 ascending pipes; 6 escape pipes; 7 first pressure monitoring devices; 8 second pressure monitoring devices; 9 weighing devices; 10 nozzles; 11 connecting portions; 12 ejection ends; 13 suction ends; 14 spray-holes; 15 first ejiction openings; 16 second ejiction openings; 17 filter screens; 18 pipe collars; 19 fixed-wings; 20 second ejiction openings; 21 second air entries.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with the mining system of drawings and Examples to biogas of the present invention and the exploitation method of biogas.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, 2, a kind of mining system of biogas, comprises water pump 1, biogas gathering-device 2 and biogas quarrying apparatus 3;
Biogas quarrying apparatus 3 comprises: nozzle 10, ascending pipe 5, escape pipe 6 and connecting portion 11;
Ascending pipe 5 is fixedly connected with by connecting portion 11 with escape pipe 6;
One end of ascending pipe 5 is ejection end 12;
Nozzle 10 is arranged spray-hole 14;
Nozzle 10 is fixedly connected on ejection end 12;
One end of escape pipe 6 is suction end 13;
Water pump 1 is communicated with ascending pipe 5, for being injected in ascending pipe 5 by water, and is sprayed by the spray-hole 14 on nozzle 10;
Biogas gathering-device 2 is communicated with escape pipe 6;
Biogas enters escape pipe 6 by suction end 13, and enters biogas gathering-device 2 by the outlet side of escape pipe 6.
Water to be injected in ascending pipe 5 and to be sprayed by the spray-hole 14 on nozzle 10 by water pump 1, such nozzle 10 can adopt big yield, high pressure to carry out driving boring to the top of biogas, because ascending pipe 5 is fixedly connected with escape pipe 6, while driving, escape pipe 6 and ascending pipe 5 can move simultaneously, by the viscosity of soil property, escape pipe 6 and ascending pipe 5 are sealed simultaneously, thus avoid the diffusion of biogas in recovery process, improve production efficiency.And escape pipe 6 and ascending pipe 5 move simultaneously, driving boring work can be made to carry out simultaneously, avoid because top shallow gas pay is suppressed leakage, thus rig may be caused to subside or the consequence of ground subsidence.
More preferably, as a kind of embodiment, also comprise flow monitoring device 22 and sandblasting source 4;
Flow monitoring device 22 is connected with escape pipe 6, for monitoring the flow of biogas in escape pipe 6;
Sandblasting source 4 is communicated with ascending pipe 5, and sand is injected ascending pipe 5 by sandblasting source 4, and is sprayed by the spray-hole 14 on nozzle 10.
Like this, nozzle 10 to biological gas-bearing formation note sand, can increase the crack of biogas, thus increases the coefficient of mining of biogas.
More preferably, as a kind of embodiment, the quantity of spray-hole 14 is two or more.
As shown in Figure 3, the quantity of spray-hole 14 can be 3 and be evenly arranged, and can ensure water or sand like this from nozzle in a large number and spray equably, thus ensure that operating efficiency and the quality of biogas quarrying apparatus 3.
More preferably, as a kind of embodiment, ascending pipe 5 and escape pipe 6 are the PE pipe of stainless steel tube and/or band steel frame.Also can be the pressure-bearing pipe of other materials.
The rotproofness of ascending pipe 5 and escape pipe 6 can be improved like this, and the intensity of ascending pipe 5 and escape pipe 6 can be ensured, not only ensure that the reliability of biogas exploitation work can also make greatly extend the application life of biogas quarrying apparatus 3 simultaneously.
More preferably, as a kind of embodiment, as shown in Figure 2,4, ascending pipe 5 is arranged on escape pipe 6 inside;
Connecting portion 11 is fixedly connected with the inwall of escape pipe 6 with ascending pipe 5 outer wall respectively;
The ejection end 12 of ascending pipe 5 arranges the first ejiction opening 15, and nozzle 10 to be fixedly connected on the first ejiction opening 15;
Ejection end 12 and suction end 13 form the first air entry 16 jointly;
First air entry 16 arranges filter screen 17;
Biogas enters escape pipe 6 by the first air entry 16.
Between such ascending pipe 5 and escape pipe, Formation cross-section is long-pending adds major path, can ensure that biogas is passed through in a large number, thus improve operating efficiency.And the first air entry 16 is arranged filter screen 17, impurity can be avoided to enter this passage and to cause to obtain channel block, ensure that carrying out smoothly of exploitation work.
More preferably, as a kind of embodiment, as shown in Figure 5, connecting portion 11 is be fixedly connected with the inwall of escape pipe 6 with ascending pipe 5 outer wall respectively;
The quantity of connecting portion 11 is one or more.
This mode not only structure is simple, and can ensure the reliability of the connection between ascending pipe 5 and escape pipe 6.
More preferably, as a kind of embodiment, as shown in Figure 6, connecting portion 11 comprises pipe collar 18 and fixed-wing 19;
Pipe collar 18 is fixedly connected on the outer wall of ascending pipe 5;
Fixed-wing 19 is elastic material;
Fixed-wing 19 is fixedly connected with pipe collar 18, and is connected on the inwall of escape pipe 6.
Because fixed-wing 19 is elastic material, and be connected on the inwall of escape pipe 6, fixed-wing 19 can rely on its own resilient and and the inwall of escape pipe 6 between frictional force escape pipe 6 and ascending pipe 5 are connected and fixed, the installation work between escape pipe 6 and ascending pipe 5 can be made like this to become very convenient.
More preferably, as a kind of embodiment, as shown in Figure 7,8, escape pipe 6 is arranged on ascending pipe 5 inside;
Connecting portion 11 is fixedly connected with the outer wall of escape pipe 6 with ascending pipe 5 inwall respectively;
Ejection end 12 and suction end 13 form the second ejiction opening 20 jointly, and nozzle 10 is fixedly connected on the second ejiction opening 20;
Suction end 13 arranges the second air entry 21;
Second air entry 21 arranges filter screen 17;
Biogas enters escape pipe 6 by the second air entry 21.
Between such ascending pipe 5 inwall and the outer wall of escape pipe 6, Formation cross-section amasss larger waterflood path, can ensure passing through of a large amount of current, thus improves the driving drilling efficiency of biogas quarrying apparatus 3.
Here the frame mode of connecting portion 11 can adopt the mode described in preceding embodiment.
More preferably, as a kind of embodiment, also comprise the first pressure monitoring device 7;
First pressure monitoring device 7 is connected with ascending pipe 5, for monitoring the pressure of the water in ascending pipe 5.
Can monitor the pressure of the water in ascending pipe 5 when the boring of water filling driving like this, according to monitoring result adjustment operation, thus make driving and exploitation work more accurately reliable.
More preferably, as a kind of embodiment, also comprise weighing device 9;
Weigh dress, 9 are connected with biogas quarrying apparatus 3, for the weight change of monitoring bio gas quarrying apparatus 3.
Monitoring can be carried out to the weight change of biogas quarrying apparatus 3 when the boring of water filling driving like this to survey, and according to monitoring result adjustment operation, thus make driving and exploitation work more accurately reliable.
More preferably, as a kind of embodiment, also comprise the second pressure monitoring device 8;
Second pressure monitoring device 8 is connected with escape pipe 6, for monitoring the air pressure of in escape pipe 6.
Can monitor the air pressure of tracheal strips 6 when biogas is exploited like this, and according to monitoring result, thus make biogas exploitation work more accurately reliable.
For realizing goal of the invention, as shown in Figure 9, the present invention also provides a kind of exploitation method of biogas, for exploiting the biogas in biogas mineral reserve district, biogas mineral reserve district comprises the covering layer, biogas housing and the biological gas-bearing formation that are arranged in order from top to bottom, the use of biogas mining system, comprises the following steps:
S100, starts water pump, and adjustment inflow, tunnels covering layer;
S200, adjustment inflow, holes to biogas housing;
S300, closes down water pump, stops water injecting drilling;
S400, starts biogas gathering-device, collection of biological gas.
Wherein, the large water gaging of the adjustable employing of the water yield in the step s 100, water yield scope can be 30-50 cube m/min, and proceed to go out to enter step S200 apart from 2-4 rice above biological gas-bearing formation top board when carrying out driving to covering layer, the adjusting range of inflow can be 14-17 cube m/min in step s 200.
More preferably, as a kind of embodiment, also comprise after step S400:
S410, whether the biogas flow in Real-Time Monitoring escape pipe reduces, if then enter S320, then continues monitoring if not;
S420, starts sandblasting source, to biological gas-bearing formation sandblasting.
More preferably, as a kind of embodiment, step S200 comprises the following steps:
S210, whether the fluctuation of the pressure of the water in Real-Time Monitoring ascending pipe reaches preset value, if then enter 400, then continues monitoring if not.
Preset value can make ± 1-2MPa.
More preferably, as a kind of embodiment, step S200 is further comprising the steps of:
S220, the air pressure in Real-Time Monitoring escape pipe, whether lower than the air pressure of biological gas-bearing formation, if then enter S400, then continues monitoring if not.
More preferably, as a kind of embodiment, step S200 is further comprising the steps of:
S230, whether the weight of the quarrying apparatus of Real-Time Monitoring biogas has obvious decline, if then switch off the pump and enter S300, then continues monitoring if not.
The invention has the beneficial effects as follows: reasonable in design, be easy to operation, production efficiency is high, and can effectively avoid occurring accident in biogas recovery process.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (16)
1. a mining system for biogas, is characterized in that:
Comprise water pump, biogas gathering-device and biogas quarrying apparatus;
Described biogas quarrying apparatus comprises: nozzle, ascending pipe, escape pipe and connecting portion;
Described ascending pipe is fixedly connected with by described connecting portion with described escape pipe;
One end of described ascending pipe is ejection end;
Described nozzle arranges spray-hole;
Described nozzle is fixedly connected on described ejection end;
One end of described escape pipe is suction end;
Described water pump is communicated with described ascending pipe, for being injected in described ascending pipe by water, and by the described spray-hole ejection on described nozzle;
Described biogas gathering-device is communicated with described escape pipe;
Biogas enters described escape pipe by described suction end, and enters described biogas gathering-device by the outlet side of described escape pipe.
2. the mining system of biogas according to claim 1, is characterized in that:
Also comprise flow monitoring device and sandblasting source;
Described flow monitoring device is connected with described escape pipe, for monitoring the flow of biogas in described escape pipe;
Described sandblasting source is communicated with described ascending pipe, and sand is injected described ascending pipe by described sandblasting source, and by the described spray-hole ejection on described nozzle.
3. the mining system of biogas according to claim 2, is characterized in that:
The quantity of described spray-hole is two or more.
4. the mining system of biogas according to claim 3, is characterized in that:
Described ascending pipe and described escape pipe are the PE pipe of stainless steel tube and/or band steel frame.
5. the mining system of biogas according to claim 4, is characterized in that:
It is inner that described ascending pipe is arranged on described escape pipe;
Described connecting portion is fixedly connected with the inwall of described escape pipe respectively at described ascending pipe outer wall;
Described ejection end and described suction end form the first air entry jointly;
Described first air entry arranges filter screen;
Biogas enters described escape pipe by described first air entry.
6. the mining system of biogas according to claim 5, is characterized in that:
Described connecting portion is fixedly connected with the inwall of described escape pipe with described ascending pipe outer wall respectively;
The quantity of described connecting portion is one or more.
7. the mining system of biogas according to claim 6, is characterized in that:
Described connecting portion comprises pipe collar and fixed-wing;
Described pipe collar is fixedly connected on the outer wall of described ascending pipe;
Described fixed-wing is elastic material;
Described fixed-wing is fixedly connected with described pipe collar, and is connected on the inwall of described escape pipe.
8. the mining system of biogas according to claim 4, is characterized in that:
It is inner that described escape pipe is arranged on described ascending pipe;
Described connecting portion is fixedly connected with the outer wall of described escape pipe respectively at described ascending pipe inwall;
Described ejection end and described suction end form the second ejiction opening jointly, and described nozzle is fixedly connected on described second ejiction opening;
Described suction end arranges the second air entry;
Described second air entry arranges filter screen;
Biogas enters described escape pipe by described second air entry.
9. the mining system of the biogas according to claim 1 to 8 any one, is characterized in that:
Also comprise the first pressure monitoring device;
Described first pressure monitoring device is connected with described ascending pipe, for monitoring the pressure of the water in described ascending pipe.
10. the mining system of the biogas according to claim 1 to 8 any one, is characterized in that:
Also comprise weighing device;
Described weighing device is connected with described biogas quarrying apparatus, for monitoring the weight change of described biogas quarrying apparatus.
The mining system of 11. biogas according to claim 1 to 8 any one, is characterized in that:
Also comprise the second pressure monitoring device;
Described second pressure monitoring device is connected with described escape pipe, for monitoring the air pressure in described escape pipe.
The exploitation method of 12. 1 kinds of biogas, for exploiting the biogas in biogas mineral reserve district, described biogas mineral reserve district comprises the covering layer, biogas housing and the biological gas-bearing formation that are arranged in order from top to bottom, it is characterized in that: for the use of claim 10 to 13 any one biogas mining system, comprise the following steps:
S100, starts water pump, and adjustment inflow, tunnels covering layer;
S200, starts water pump, and adjustment inflow, holes to biogas housing;
S300, closes down water pump, stops water injecting drilling;
S400, starts biogas gathering-device, collection of biological gas.
The exploitation method of 13. biogas according to claim 12, is characterized in that:
Also comprise after step S400:
S410, whether the biogas flow in Real-Time Monitoring escape pipe reduces, if then enter S320, then continues monitoring if not;
S420, starts sandblasting source, to biological gas-bearing formation sandblasting.
The exploitation method of 14. biogas according to claim 12, is characterized in that:
Step S200 comprises the following steps:
S210, whether the fluctuation of the pressure of the water in Real-Time Monitoring ascending pipe reaches preset value, if then enter 400, then continues monitoring if not.
The exploitation method of 15. biogas according to claim 12, is characterized in that:
Step S200 is further comprising the steps of:
S220, the air pressure in Real-Time Monitoring escape pipe, whether lower than the air pressure of biological gas-bearing formation, if then enter S400, then continues monitoring if not.
The exploitation method of 16. biogas according to claim 12, is characterized in that:
Step S200 is further comprising the steps of:
S230, whether the weight of the quarrying apparatus of Real-Time Monitoring biogas has obvious decline, if then switch off the pump and enter S300, then continues monitoring if not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410540188.9A CN104295271B (en) | 2014-09-15 | 2014-10-13 | The mining system of biogas and the recovery method of biogas |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420528137 | 2014-09-15 | ||
| CN201420528137.X | 2014-09-15 | ||
| CN201420528137X | 2014-09-15 | ||
| CN201410540188.9A CN104295271B (en) | 2014-09-15 | 2014-10-13 | The mining system of biogas and the recovery method of biogas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295271A true CN104295271A (en) | 2015-01-21 |
| CN104295271B CN104295271B (en) | 2017-11-03 |
Family
ID=52315188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410540188.9A Active CN104295271B (en) | 2014-09-15 | 2014-10-13 | The mining system of biogas and the recovery method of biogas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295271B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079099A1 (en) * | 1999-06-23 | 2000-12-28 | The University Of Wyoming Research Corporation D.B.A. Western Research Institute | System for improving coalbed gas production |
| US20030168211A1 (en) * | 2001-06-12 | 2003-09-11 | Hydrotreat, Inc. | Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| CN101363308A (en) * | 2007-08-09 | 2009-02-11 | 王薇 | HAS high-pressure aerial fog rapid injector |
| CN103233923A (en) * | 2013-04-18 | 2013-08-07 | 西安交通大学 | Injection device for discharging accumulated fluids in shaft |
-
2014
- 2014-10-13 CN CN201410540188.9A patent/CN104295271B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079099A1 (en) * | 1999-06-23 | 2000-12-28 | The University Of Wyoming Research Corporation D.B.A. Western Research Institute | System for improving coalbed gas production |
| US20030168211A1 (en) * | 2001-06-12 | 2003-09-11 | Hydrotreat, Inc. | Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
| CN101363308A (en) * | 2007-08-09 | 2009-02-11 | 王薇 | HAS high-pressure aerial fog rapid injector |
| CN103233923A (en) * | 2013-04-18 | 2013-08-07 | 西安交通大学 | Injection device for discharging accumulated fluids in shaft |
Non-Patent Citations (1)
| Title |
|---|
| 王君国等: "《浅层气钻井防治漏工艺技术》", 《探矿工程》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295271B (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2315863C2 (en) | Method for multipay field survey and development | |
| MX354355B (en) | Multiphase drilling systems and methods. | |
| CN105179014B (en) | Mine water inrush disaster alarm method | |
| CN104653161A (en) | Coal mine underground pulse hydraulic slot cutting-fracturing integral anti-reflection extraction device and method | |
| UA72920C2 (en) | Method for well drilling | |
| CN204754895U (en) | Device is adopted to colliery slot of pulse water conservancy in pit - anti -reflection taking out of fracturing integration | |
| CN206554901U (en) | Water drainage gas production device | |
| Hu et al. | Methane extraction from abandoned mines by surface vertical wells: a case study in China | |
| CN105443098B (en) | A kind of coal mine down-hole drilling segmentation fixed point hydraulic fracturing pore-fixing device and method | |
| CN112814737B (en) | Collapse column advanced treatment method and system based on laminated multi-branch horizontal well | |
| CN103334709B (en) | A kind of casing annulus gas injection technology | |
| CN107289997A (en) | A kind of Karst-fissure water detection system and method | |
| CN207568570U (en) | Water drainage gas production device | |
| CN104329069B (en) | Fire flood system | |
| CN107100625A (en) | High water retaining mining method is led in overlying strata water filling filling reduction | |
| CN106930764B (en) | Multilayer sandstone-type uranium mineralization with respect separate zone production technique | |
| CN203729968U (en) | Simulation structure for bottom water control | |
| CN206458334U (en) | Water pumping gas production tubing string | |
| CN103452531A (en) | Method for underbalanced tubing descending, non-well-killing gas lifting, rotary pumping, pump maintaining and tubing maintaining | |
| CN102472086B (en) | Flow restrictor device | |
| CN209352622U (en) | The built-in permeable reactor of individual well | |
| CN107420100A (en) | One kind layering water plug and layering pumping system | |
| CN104634616A (en) | Butt-joint one-well multilayer groundwater sampling system based on electromagnet | |
| CN104295271A (en) | Biogas exploiting system and method | |
| US20150330158A1 (en) | Apparatuses, systems, and methods for injecting fluids into a subterranean formation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170204 Address after: 065001 Hebei economic and Technological Development Zone, Langfang science and Technology Park in the Southern District of B building, room 522 Applicant after: ENN SCIENCE & TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: The 065001 Hebei economic and Technological Development Zone of Langfang Huaxiang Xinyuan host new Austrian Science and Technology Park Applicant before: ENN Coal Gasification Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |